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541k
1905.07790
Correlation Coefficients and Semantic Textual Similarity
A large body of research into semantic textual similarity has focused on constructing state-of-the-art embeddings using sophisticated modelling, careful choice of learning signals and many clever tricks. By contrast, little attention has been devoted to similarity measures between these embeddings, with cosine similari...
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false
false
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131,325
2408.02795
Entity Retrieval for Answering Entity-Centric Questions
The similarity between the question and indexed documents is a crucial factor in document retrieval for retrieval-augmented question answering. Although this is typically the only method for obtaining the relevant documents, it is not the sole approach when dealing with entity-centric questions. In this study, we propo...
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false
false
false
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478,765
2102.03355
Thermal Control of Laser Powder Bed Fusion Using Deep Reinforcement Learning
Powder-based additive manufacturing techniques provide tools to construct intricate structures that are difficult to manufacture using conventional methods. In Laser Powder Bed Fusion, components are built by selectively melting specific areas of the powder bed, to form the two-dimensional cross-section of the specific...
false
false
false
false
false
false
true
false
false
false
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false
false
false
218,719
2306.11518
One model to rule them all: ranking Slovene summarizers
Text summarization is an essential task in natural language processing, and researchers have developed various approaches over the years, ranging from rule-based systems to neural networks. However, there is no single model or approach that performs well on every type of text. We propose a system that recommends the mo...
false
false
false
false
false
false
false
false
true
false
false
false
false
false
false
false
false
false
374,623
2307.00895
Synthesis of Contrast-Enhanced Breast MRI Using Multi-b-Value DWI-based Hierarchical Fusion Network with Attention Mechanism
Magnetic resonance imaging (MRI) is the most sensitive technique for breast cancer detection among current clinical imaging modalities. Contrast-enhanced MRI (CE-MRI) provides superior differentiation between tumors and invaded healthy tissue, and has become an indispensable technique in the detection and evaluation of...
false
false
false
false
false
false
false
false
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false
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377,169
1805.12152
Robustness May Be at Odds with Accuracy
We show that there may exist an inherent tension between the goal of adversarial robustness and that of standard generalization. Specifically, training robust models may not only be more resource-consuming, but also lead to a reduction of standard accuracy. We demonstrate that this trade-off between the standard accura...
false
false
false
false
false
false
true
false
false
false
false
true
false
false
false
true
false
false
99,101
2004.12247
Hierarchical Multi Task Learning with Subword Contextual Embeddings for Languages with Rich Morphology
Morphological information is important for many sequence labeling tasks in Natural Language Processing (NLP). Yet, existing approaches rely heavily on manual annotations or external software to capture this information. In this study, we propose using subword contextual embeddings to capture the morphological informati...
false
false
false
false
false
true
true
false
true
false
false
false
false
false
false
false
false
false
174,180
2008.05708
Robust Image Matching By Dynamic Feature Selection
Estimating dense correspondences between images is a long-standing image under-standing task. Recent works introduce convolutional neural networks (CNNs) to extract high-level feature maps and find correspondences through feature matching. However,high-level feature maps are in low spatial resolution and therefore insu...
false
false
false
false
false
false
false
false
false
false
false
true
false
false
false
false
false
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191,587
1612.00402
Reduced Order Models for Pricing European and American Options under Stochastic Volatility and Jump-Diffusion Models
European options can be priced by solving parabolic partial(-integro) differential equations under stochastic volatility and jump-diffusion models like Heston, Merton, and Bates models. American option prices can be obtained by solving linear complementary problems (LCPs) with the same operators. A finite difference di...
false
true
false
false
false
false
false
false
false
false
false
false
false
false
false
false
false
false
64,878
1904.01537
Speech denoising by parametric resynthesis
This work proposes the use of clean speech vocoder parameters as the target for a neural network performing speech enhancement. These parameters have been designed for text-to-speech synthesis so that they both produce high-quality resyntheses and also are straightforward to model with neural networks, but have not bee...
false
false
true
false
false
false
true
false
false
false
false
false
false
false
false
false
false
false
126,163
2404.13515
FedTrans: Efficient Federated Learning via Multi-Model Transformation
Federated learning (FL) aims to train machine learning (ML) models across potentially millions of edge client devices. Yet, training and customizing models for FL clients is notoriously challenging due to the heterogeneity of client data, device capabilities, and the massive scale of clients, making individualized mode...
false
false
false
false
true
false
true
false
false
false
false
false
false
false
false
false
false
true
448,327
1804.07354
The Aftermath of Disbanding an Online Hateful Community
Harassing and hateful speech in online spaces has become a common problem for platform maintainers and their users. The toxicity created by such content can discourage user participation and engagement. Therefore, it is crucial for and a common goal of platform managers to diminish hateful and harmful content. Over the...
false
false
false
true
false
false
false
false
false
false
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false
false
false
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false
95,510
2007.06709
Deep Image Orientation Angle Detection
Estimating and rectifying the orientation angle of any image is a pretty challenging task. Initial work used the hand engineering features for this purpose, where after the invention of deep learning using convolution-based neural network showed significant improvement in this problem. However, this paper shows that th...
false
false
false
false
false
false
true
false
false
false
false
true
false
false
false
false
false
false
187,097
2309.08915
On non-expandable cross-bifix-free codes
A cross-bifix-free code of length $n$ over $\mathbb{Z}_q$ is defined as a non-empty subset of $\mathbb{Z}_q^n$ satisfying that the prefix set of each codeword is disjoint from the suffix set of every codeword. Cross-bifix-free codes have found important applications in digital communication systems. One of the main res...
false
false
false
false
false
false
false
false
false
true
false
false
false
false
false
false
false
false
392,382
2409.01930
Efficient LLM Context Distillation
This paper specifically investigates context distillation a method that extends the utility of task-specific examples by internalizing them, thus augmenting the example set accessible for model inference.
false
false
false
false
false
false
true
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485,511
2012.11094
Complexity of zigzag sampling algorithm for strongly log-concave distributions
We study the computational complexity of zigzag sampling algorithm for strongly log-concave distributions. The zigzag process has the advantage of not requiring time discretization for implementation, and that each proposed bouncing event requires only one evaluation of partial derivative of the potential, while its co...
false
false
false
false
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true
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212,525
2410.01336
VectorGraphNET: Graph Attention Networks for Accurate Segmentation of Complex Technical Drawings
This paper introduces a new approach to extract and analyze vector data from technical drawings in PDF format. Our method involves converting PDF files into SVG format and creating a feature-rich graph representation, which captures the relationships between vector entities using geometrical information. We then apply ...
false
false
false
false
false
false
false
false
false
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false
true
false
false
false
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false
false
493,724
2310.01885
Synthetic CT Generation via Variant Invertible Network for All-digital Brain PET Attenuation Correction
Attenuation correction (AC) is essential for the generation of artifact-free and quantitatively accurate positron emission tomography (PET) images. However, AC of PET faces challenges including inter-scan motion and erroneous transformation of structural voxel-intensities to PET attenuation-correction factors. Nowadays...
false
false
false
false
false
false
true
false
false
false
false
false
false
false
false
false
false
false
396,622
1805.08587
Deep Feature Aggregation and Image Re-ranking with Heat Diffusion for Image Retrieval
Image retrieval based on deep convolutional features has demonstrated state-of-the-art performance in popular benchmarks. In this paper, we present a unified solution to address deep convolutional feature aggregation and image re-ranking by simulating the dynamics of heat diffusion. A distinctive problem in image retri...
false
false
false
false
false
true
false
false
false
false
false
true
false
false
false
false
false
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98,180
2211.07855
Relationship of the language distance to English ability of a country
Language difference is one of the factors that hinder the acquisition of second language skills. In this article, we introduce a novel solution that leverages the strength of deep neural networks to measure the semantic dissimilarity between languages based on their word distributions in the embedding space of the mult...
false
false
false
false
false
false
false
false
true
false
false
false
false
false
false
false
false
false
330,393
2009.06625
Revealing Secrets in SPARQL Session Level
Based on Semantic Web technologies, knowledge graphs help users to discover information of interest by using live SPARQL services. Answer-seekers often examine intermediate results iteratively and modify SPARQL queries repeatedly in a search session. In this context, understanding user behaviors is critical for effecti...
false
false
false
false
true
false
false
false
false
false
false
false
false
false
false
false
true
false
195,702
1704.03844
Determining Song Similarity via Machine Learning Techniques and Tagging Information
The task of determining item similarity is a crucial one in a recommender system. This constitutes the base upon which the recommender system will work to determine which items are more likely to be enjoyed by a user, resulting in more user engagement. In this paper we tackle the problem of determining song similarity ...
false
false
false
false
false
false
true
false
false
false
false
false
false
false
false
false
false
false
71,699
2303.03327
Tight Bounds for $\gamma$-Regret via the Decision-Estimation Coefficient
In this work, we give a statistical characterization of the $\gamma$-regret for arbitrary structured bandit problems, the regret which arises when comparing against a benchmark that is $\gamma$ times the optimal solution. The $\gamma$-regret emerges in structured bandit problems over a function class $\mathcal{F}$ wher...
false
false
false
false
false
false
true
false
false
false
false
false
false
false
false
false
false
false
349,685
2005.06667
Exploiting Multi-Layer Grid Maps for Surround-View Semantic Segmentation of Sparse LiDAR Data
In this paper, we consider the transformation of laser range measurements into a top-view grid map representation to approach the task of LiDAR-only semantic segmentation. Since the recent publication of the SemanticKITTI data set, researchers are now able to study semantic segmentation of urban LiDAR sequences based o...
false
false
false
false
false
false
false
true
false
false
false
true
false
false
false
false
false
false
177,076
2405.11995
Safe by Design Autonomous Driving Systems
Developing safe autonomous driving systems is a major scientific and technical challenge. Existing AI-based end-to-end solutions do not offer the necessary safety guarantees, while traditional systems engineering approaches are defeated by the complexity of the problem. Currently, there is an increasing interest in hyb...
false
false
false
false
false
false
false
false
false
false
false
false
false
false
true
false
false
false
455,375
2302.03916
QS-ADN: Quasi-Supervised Artifact Disentanglement Network for Low-Dose CT Image Denoising by Local Similarity Among Unpaired Data
Deep learning has been successfully applied to low-dose CT (LDCT) image denoising for reducing potential radiation risk. However, the widely reported supervised LDCT denoising networks require a training set of paired images, which is expensive to obtain and cannot be perfectly simulated. Unsupervised learning utilizes...
false
false
false
false
false
false
true
false
false
false
false
false
false
false
false
false
false
false
344,518
2305.06967
Data quality dimensions for fair AI
Artificial Intelligence (AI) systems are not intrinsically neutral and biases trickle in any type of technological tool. In particular when dealing with people, the impact of AI algorithms' technical errors originating with mislabeled data is undeniable. As they feed wrong and discriminatory classifications, these syst...
false
false
false
false
true
false
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false
false
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false
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true
363,722
2405.16954
Convergence of SGD with momentum in the nonconvex case: A time window-based analysis
The stochastic gradient descent method with momentum (SGDM) is a common approach for solving large-scale and stochastic optimization problems. Despite its popularity, the convergence behavior of SGDM remains less understood in nonconvex scenarios. This is primarily due to the absence of a sufficient descent property an...
false
false
false
false
false
false
true
false
false
false
false
false
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false
false
false
false
false
457,695
2011.00459
A multiscale model of terrain dynamics for real-time earthmoving simulation
A multiscale model for real-time simulation of terrain dynamics is explored. To represent the dynamics on different scales the model combines the description of soil as a continuous solid, as distinct particles and as rigid multibodies. The models are dynamically coupled to each other and to the earthmoving equipment. ...
false
true
false
false
false
false
false
false
false
false
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false
false
false
false
false
false
false
204,229
2211.06721
Using Features at Multiple Temporal and Spatial Resolutions to Predict Human Behavior in Real Time
When performing complex tasks, humans naturally reason at multiple temporal and spatial resolutions simultaneously. We contend that for an artificially intelligent agent to effectively model human teammates, i.e., demonstrate computational theory of mind (ToM), it should do the same. In this paper, we present an approa...
false
false
false
false
true
false
true
false
false
false
false
false
false
false
false
false
false
false
329,998
1903.06023
Deep Distribution Regression
Due to their flexibility and predictive performance, machine-learning based regression methods have become an important tool for predictive modeling and forecasting. However, most methods focus on estimating the conditional mean or specific quantiles of the target quantity and do not provide the full conditional distri...
false
false
false
false
false
false
true
false
false
false
false
false
false
false
false
false
false
false
124,294
2010.10217
Quantum circuit architecture search for variational quantum algorithms
Variational quantum algorithms (VQAs) are expected to be a path to quantum advantages on noisy intermediate-scale quantum devices. However, both empirical and theoretical results exhibit that the deployed ansatz heavily affects the performance of VQAs such that an ansatz with a larger number of quantum gates enables a ...
false
false
false
false
false
false
true
false
false
false
false
false
false
false
false
false
false
false
201,822
2411.19941
Perception Test 2024: Challenge Summary and a Novel Hour-Long VideoQA Benchmark
Following the successful 2023 edition, we organised the Second Perception Test challenge as a half-day workshop alongside the IEEE/CVF European Conference on Computer Vision (ECCV) 2024, with the goal of benchmarking state-of-the-art video models and measuring the progress since last year using the Perception Test benc...
false
false
false
false
false
false
true
false
true
false
false
true
false
false
false
false
false
false
512,436
2407.19439
Business and Regulatory Responses to Artificial Intelligence: Dynamic Regulation, Innovation Ecosystems and the Strategic Management of Disruptive Technology
Identifying and then implementing an effective response to disruptive new AI technologies is enormously challenging for any business looking to integrate AI into their operations, as well as regulators looking to leverage AI-related innovation as a mechanism for achieving regional economic growth. These business and re...
false
false
false
false
true
false
false
false
false
false
false
false
false
true
false
false
false
false
476,788
1905.00111
Universal Mutual Information Privacy Guarantees for Smart Meters
Smart meters enable improvements in electricity distribution system efficiency at some cost in customer privacy. Users with home batteries can mitigate this privacy loss by applying charging policies that mask their underlying energy use. A battery charging policy is proposed and shown to provide universal privacy guar...
false
false
false
false
false
false
false
false
false
true
false
false
false
false
false
false
false
false
129,397
2109.06363
Sensor Adversarial Traits: Analyzing Robustness of 3D Object Detection Sensor Fusion Models
A critical aspect of autonomous vehicles (AVs) is the object detection stage, which is increasingly being performed with sensor fusion models: multimodal 3D object detection models which utilize both 2D RGB image data and 3D data from a LIDAR sensor as inputs. In this work, we perform the first study to analyze the rob...
false
false
false
false
false
false
true
false
false
false
false
true
false
false
false
false
false
false
255,121
2305.19005
Hybrid Driven Learning for Channel Estimation in Intelligent Reflecting Surface Aided Millimeter Wave Communications
Intelligent reflecting surfaces (IRS) have been proposed in millimeter wave (mmWave) and terahertz (THz) systems to achieve both coverage and capacity enhancement, where the design of hybrid precoders, combiners, and the IRS typically relies on channel state information. In this paper, we address the problem of uplink ...
false
false
false
false
false
false
false
false
false
true
false
false
false
false
false
false
false
false
369,338
1802.08701
Machine learning based hyperspectral image analysis: A survey
Hyperspectral sensors enable the study of the chemical properties of scene materials remotely for the purpose of identification, detection, and chemical composition analysis of objects in the environment. Hence, hyperspectral images captured from earth observing satellites and aircraft have been increasingly important ...
false
false
false
false
false
false
false
false
false
false
false
true
false
false
false
false
false
false
91,158
2008.11227
A Computationally Efficient Multiclass Time-Frequency Common Spatial Pattern Analysis on EEG Motor Imagery
Common spatial pattern (CSP) is a popular feature extraction method for electroencephalogram (EEG) motor imagery (MI). This study modifies the conventional CSP algorithm to improve the multi-class MI classification accuracy and ensure the computation process is efficient. The EEG MI data is gathered from the Brain-Comp...
false
false
false
false
false
false
true
false
false
false
false
false
false
false
false
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false
false
193,206
2310.10497
LocSelect: Target Speaker Localization with an Auditory Selective Hearing Mechanism
The prevailing noise-resistant and reverberation-resistant localization algorithms primarily emphasize separating and providing directional output for each speaker in multi-speaker scenarios, without association with the identity of speakers. In this paper, we present a target speaker localization algorithm with a sele...
false
false
true
false
true
false
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false
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false
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400,249
1002.4048
A Hough Transform based Technique for Text Segmentation
Text segmentation is an inherent part of an OCR system irrespective of the domain of application of it. The OCR system contains a segmentation module where the text lines, words and ultimately the characters must be segmented properly for its successful recognition. The present work implements a Hough transform based t...
false
false
false
false
false
true
false
false
false
false
false
false
false
false
false
false
false
false
5,753
2410.03432
EB-NeRD: A Large-Scale Dataset for News Recommendation
Personalized content recommendations have been pivotal to the content experience in digital media from video streaming to social networks. However, several domain specific challenges have held back adoption of recommender systems in news publishing. To address these challenges, we introduce the Ekstra Bladet News Recom...
false
false
false
false
true
true
true
false
false
false
false
false
false
false
false
false
false
false
494,778
1506.00406
Monolingually Derived Phrase Scores for Phrase Based SMT Using Neural Networks Vector Representations
In this paper, we propose two new features for estimating phrase-based machine translation parameters from mainly monolingual data. Our method is based on two recently introduced neural network vector representation models for words and sentences. It is the first time that these models have been used in an end to end p...
false
false
false
false
false
false
false
false
true
false
false
false
false
false
false
false
false
false
43,665
2502.04400
Adaptive Prototype Knowledge Transfer for Federated Learning with Mixed Modalities and Heterogeneous Tasks
Multimodal Federated Learning (MFL) enables multiple clients to collaboratively train models on multimodal data while ensuring clients' privacy. However, modality and task heterogeneity hinder clients from learning a unified representation, weakening local model generalization, especially in MFL with mixed modalities w...
false
false
false
false
true
false
true
false
false
false
false
false
true
false
false
false
false
true
531,139
1907.07061
How much real data do we actually need: Analyzing object detection performance using synthetic and real data
In recent years, deep learning models have resulted in a huge amount of progress in various areas, including computer vision. By nature, the supervised training of deep models requires a large amount of data to be available. This ideal case is usually not tractable as the data annotation is a tremendously exhausting an...
false
false
false
false
false
false
false
false
false
false
false
true
false
false
false
false
false
false
138,774
2111.05534
Verifying Controllers with Convolutional Neural Network-based Perception: A Case for Intelligible, Safe, and Precise Abstractions
Convolutional Neural Networks (CNN) for object detection, lane detection, and segmentation now sit at the head of most autonomy pipelines, and yet, their safety analysis remains an important challenge. Formal analysis of perception models is fundamentally difficult because their correctness is hard if not impossible to...
false
false
false
false
false
false
false
true
false
false
false
false
false
false
false
false
false
true
265,825
2401.02873
Optimal Chaining of Vehicle Plans with Time Windows
For solving problems from the domain of Mobility-on-Demand (MoD), we often need to connect vehicle plans into plans spanning longer time, a process we call plan chaining. As we show in this work, chaining of the plans can be used to reduce the size of MoD providers' fleet (fleet-sizing problem) but also to reduce the t...
false
false
false
false
true
false
false
false
false
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false
false
419,873
2012.03642
Generalised Perceptron Learning
We present a generalisation of Rosenblatt's traditional perceptron learning algorithm to the class of proximal activation functions and demonstrate how this generalisation can be interpreted as an incremental gradient method applied to a novel energy function. This novel energy function is based on a generalised Bregma...
false
false
false
false
false
false
true
false
false
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false
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false
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false
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210,191
2411.15183
Balancing property optimization and constraint satisfaction for constrained multi-property molecular optimization
Molecular optimization, which aims to discover improved molecules from a vast chemical search space, is a critical step in chemical development. Various artificial intelligence technologies have demonstrated high effectiveness and efficiency on molecular optimization tasks. However, few of these technologies focus on b...
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false
false
false
true
false
false
false
false
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false
false
false
false
false
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false
false
510,474
1512.00567
Rethinking the Inception Architecture for Computer Vision
Convolutional networks are at the core of most state-of-the-art computer vision solutions for a wide variety of tasks. Since 2014 very deep convolutional networks started to become mainstream, yielding substantial gains in various benchmarks. Although increased model size and computational cost tend to translate to imm...
false
false
false
false
false
false
false
false
false
false
false
true
false
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false
false
false
49,723
2403.04866
A Modular End-to-End Multimodal Learning Method for Structured and Unstructured Data
Multimodal learning is a rapidly growing research field that has revolutionized multitasking and generative modeling in AI. While much of the research has focused on dealing with unstructured data (e.g., language, images, audio, or video), structured data (e.g., tabular data, time series, or signals) has received less ...
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false
false
false
true
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false
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false
false
false
false
false
435,766
2405.04952
Evolving R2 to R2+: Optimal, Delayed Line-of-sight Vector-based Path Planning
A vector-based any-angle path planner, R2, is evolved in to R2+ in this paper. By delaying line-of-sight, R2 and R2+ search times are largely unaffected by the distance between the start and goal points, but are exponential in the worst case with respect to the number of collisions during searches. To improve search ti...
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false
false
false
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false
false
true
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false
false
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452,741
2410.14135
Inverse Reinforcement Learning from Non-Stationary Learning Agents
In this paper, we study an inverse reinforcement learning problem that involves learning the reward function of a learning agent using trajectory data collected while this agent is learning its optimal policy. To address this problem, we propose an inverse reinforcement learning method that allows us to estimate the po...
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false
false
false
true
false
true
false
false
false
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false
false
false
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499,882
2412.02899
Adaptive LiDAR Odometry and Mapping for Autonomous Agricultural Mobile Robots in Unmanned Farms
Unmanned and intelligent agricultural systems are crucial for enhancing agricultural efficiency and for helping mitigate the effect of labor shortage. However, unlike urban environments, agricultural fields impose distinct and unique challenges on autonomous robotic systems, such as the unstructured and dynamic nature ...
false
false
false
false
false
false
false
true
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false
false
513,730
1502.05082
What makes for effective detection proposals?
Current top performing object detectors employ detection proposals to guide the search for objects, thereby avoiding exhaustive sliding window search across images. Despite the popularity and widespread use of detection proposals, it is unclear which trade-offs are made when using them during object detection. We provi...
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40,333
2302.09780
Compressing Tabular Data via Latent Variable Estimation
Data used for analytics and machine learning often take the form of tables with categorical entries. We introduce a family of lossless compression algorithms for such data that proceed in four steps: $(i)$ Estimate latent variables associated to rows and columns; $(ii)$ Partition the table in blocks according to the ro...
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346,563
2305.06036
FusionDepth: Complement Self-Supervised Monocular Depth Estimation with Cost Volume
Multi-view stereo depth estimation based on cost volume usually works better than self-supervised monocular depth estimation except for moving objects and low-textured surfaces. So in this paper, we propose a multi-frame depth estimation framework which monocular depth can be refined continuously by multi-frame sequent...
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363,380
1802.03887
A Systems Theory Approach to the Synthesis of Minimum Noise Phase-Insensitive Quantum Amplifiers
We present a systems theory approach to the proof of a result bounding the required level of added quantum noise in a phase-insensitive quantum amplifier. We also present a synthesis procedure for constructing a quantum optical phase-insensitive quantum amplifier which adds the minimum level of quantum noise and achiev...
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90,091
2501.07818
A Multi-Encoder Frozen-Decoder Approach for Fine-Tuning Large Language Models
Among parameter-efficient fine-tuning methods, freezing has emerged as a popular strategy for speeding up training, reducing catastrophic forgetting, and improving downstream performance. We investigate the impact of freezing the decoder in a multi-task setup comprising diverse natural language tasks, aiming to reduce ...
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524,523
1909.03785
Belief Regulated Dual Propagation Nets for Learning Action Effects on Groups of Articulated Objects
In recent years, graph neural networks have been successfully applied for learning the dynamics of complex and partially observable physical systems. However, their use in the robotics domain is, to date, still limited. In this paper, we introduce Belief Regulated Dual Propagation Networks (BRDPN), a general-purpose le...
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false
false
false
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true
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false
144,601
2103.13427
Multi-Label Classification Neural Networks with Hard Logical Constraints
Multi-label classification (MC) is a standard machine learning problem in which a data point can be associated with a set of classes. A more challenging scenario is given by hierarchical multi-label classification (HMC) problems, in which every prediction must satisfy a given set of hard constraints expressing subclass...
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true
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226,478
1902.04335
Hyperbolic Disk Embeddings for Directed Acyclic Graphs
Obtaining continuous representations of structural data such as directed acyclic graphs (DAGs) has gained attention in machine learning and artificial intelligence. However, embedding complex DAGs in which both ancestors and descendants of nodes are exponentially increasing is difficult. Tackling in this problem, we de...
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121,318
2209.08097
Noise transfer for unsupervised domain adaptation of retinal OCT images
Optical coherence tomography (OCT) imaging from different camera devices causes challenging domain shifts and can cause a severe drop in accuracy for machine learning models. In this work, we introduce a minimal noise adaptation method based on a singular value decomposition (SVDNA) to overcome the domain gap between t...
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317,992
2010.16409
Inherent Trade-offs in the Fair Allocation of Treatments
Explicit and implicit bias clouds human judgement, leading to discriminatory treatment of minority groups. A fundamental goal of algorithmic fairness is to avoid the pitfalls in human judgement by learning policies that improve the overall outcomes while providing fair treatment to protected classes. In this paper, we ...
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204,057
2402.10009
Zero-Shot Unsupervised and Text-Based Audio Editing Using DDPM Inversion
Editing signals using large pre-trained models, in a zero-shot manner, has recently seen rapid advancements in the image domain. However, this wave has yet to reach the audio domain. In this paper, we explore two zero-shot editing techniques for audio signals, which use DDPM inversion with pre-trained diffusion models....
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429,766
2208.04820
Rapid Development of a Mobile Robot Simulation Environment
Robotics simulation provides many advantages during the development of an intelligent ground vehicle (IGV) such as testing the software components in varying scenarios without requiring a complete physical robot. This paper discusses a 3D simulation environment created using rapid application development and the Unity ...
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312,233
2501.18277
Sebra: Debiasing Through Self-Guided Bias Ranking
Ranking samples by fine-grained estimates of spuriosity (the degree to which spurious cues are present) has recently been shown to significantly benefit bias mitigation, over the traditional binary biased-\textit{vs}-unbiased partitioning of train sets. However, this spuriosity ranking comes with the requirement of hum...
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528,638
1904.05236
Curriculum semi-supervised segmentation
This study investigates a curriculum-style strategy for semi-supervised CNN segmentation, which devises a regression network to learn image-level information such as the size of a target region. These regressions are used to effectively regularize the segmentation network, constraining softmax predictions of the unlabe...
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127,244
1907.01453
A Note On The Popularity of Stochastic Optimization Algorithms in Different Fields: A Quantitative Analysis from 2007 to 2017
Stochastic optimization algorithms are often used to solve complex large-scale optimization problems in various fields. To date, there have been a number of stochastic optimization algorithms such as Genetic Algorithm, Cuckoo Search, Tabu Search, Simulated Annealing, Particle Swarm Optimization, Ant Colony Optimization...
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false
false
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false
false
137,334
2302.03768
Catch Me If You Can: Improving Adversaries in Cyber-Security With Q-Learning Algorithms
The ongoing rise in cyberattacks and the lack of skilled professionals in the cybersecurity domain to combat these attacks show the need for automated tools capable of detecting an attack with good performance. Attackers disguise their actions and launch attacks that consist of multiple actions, which are difficult to ...
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344,456
2408.16119
Data Formulator 2: Iteratively Creating Rich Visualizations with AI
To create rich visualizations, data analysts often need to iterate back and forth among data processing and chart specification to achieve their goals. To achieve this, analysts need not only proficiency in data transformation and visualization tools but also efforts to manage the branching history consisting of many d...
true
false
false
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484,196
2310.07197
MatChat: A Large Language Model and Application Service Platform for Materials Science
The prediction of chemical synthesis pathways plays a pivotal role in materials science research. Challenges, such as the complexity of synthesis pathways and the lack of comprehensive datasets, currently hinder our ability to predict these chemical processes accurately. However, recent advancements in generative artif...
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398,868
2405.02935
Enabling Patient-side Disease Prediction via the Integration of Patient Narratives
Disease prediction holds considerable significance in modern healthcare, because of its crucial role in facilitating early intervention and implementing effective prevention measures. However, most recent disease prediction approaches heavily rely on laboratory test outcomes (e.g., blood tests and medical imaging from ...
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451,981
2306.09835
Subset Selection Based On Multiple Rankings in the Presence of Bias: Effectiveness of Fairness Constraints for Multiwinner Voting Score Functions
We consider the problem of subset selection where one is given multiple rankings of items and the goal is to select the highest ``quality'' subset. Score functions from the multiwinner voting literature have been used to aggregate rankings into quality scores for subsets. We study this setting of subset selection probl...
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373,984
1911.11876
Dataset-On-Demand: Automatic View Search and Presentation for Data Discovery
Many data problems are solved when the right view of a combination of datasets is identified. Finding such a view is challenging because of the many tables spread across many databases, data lakes, and cloud storage in modern organizations. Finding relevant tables, and identifying how to combine them is a difficult and...
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false
155,243
2210.15543
Beyond the Return: Off-policy Function Estimation under User-specified Error-measuring Distributions
Off-policy evaluation often refers to two related tasks: estimating the expected return of a policy and estimating its value function (or other functions of interest, such as density ratios). While recent works on marginalized importance sampling (MIS) show that the former can enjoy provable guarantees under realizable...
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false
false
true
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true
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327,001
2405.13997
Sigmoid Gating is More Sample Efficient than Softmax Gating in Mixture of Experts
The softmax gating function is arguably the most popular choice in mixture of experts modeling. Despite its widespread use in practice, the softmax gating may lead to unnecessary competition among experts, potentially causing the undesirable phenomenon of representation collapse due to its inherent structure. In respon...
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false
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456,188
2110.15278
Self-supervised EEG Representation Learning for Automatic Sleep Staging
Background: Deep learning models have shown great success in automating tasks in sleep medicine by learning from carefully annotated Electroencephalogram (EEG) data. However, effectively utilizing a large amount of raw EEG remains a challenge. Objective: In this paper, we aim to learn robust vector representations fr...
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263,831
2012.00202
Field-wise Learning for Multi-field Categorical Data
We propose a new method for learning with multi-field categorical data. Multi-field categorical data are usually collected over many heterogeneous groups. These groups can reflect in the categories under a field. The existing methods try to learn a universal model that fits all data, which is challenging and inevitably...
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209,054
2502.07645
Beyond Behavior Cloning: Robustness through Interactive Imitation and Contrastive Learning
Behavior cloning (BC) traditionally relies on demonstration data, assuming the demonstrated actions are optimal. This can lead to overfitting under noisy data, particularly when expressive models are used (e.g., the energy-based model in Implicit BC). To address this, we extend behavior cloning into an iterative proces...
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532,700
2009.11027
KoBE: Knowledge-Based Machine Translation Evaluation
We propose a simple and effective method for machine translation evaluation which does not require reference translations. Our approach is based on (1) grounding the entity mentions found in each source sentence and candidate translation against a large-scale multilingual knowledge base, and (2) measuring the recall of...
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197,050
1803.03186
RAN Enablers for 5G Radio Resource Management
This paper presents the description of several key RAN enablers for the radio resource management (RRM) framework of the fifth generation (5G) radio access network (RAN), referred to as building blocks of the 5G RRM. In particular, the following key RAN enablers are discussed: i) interference management techniques for ...
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92,203
2012.10711
Quantum reinforcement learning in continuous action space
Quantum reinforcement learning (QRL) is one promising algorithm proposed for near-term quantum devices. Early QRL proposals are effective at solving problems in discrete action space, but often suffer from the curse of dimensionality in the continuous domain due to discretization. To address this problem, we propose a ...
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212,420
1706.06987
A Generative Model of Group Conversation
Conversations with non-player characters (NPCs) in games are typically confined to dialogue between a human player and a virtual agent, where the conversation is initiated and controlled by the player. To create richer, more believable environments for players, we need conversational behavior to reflect initiative on t...
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false
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75,779
2207.00740
PhilaeX: Explaining the Failure and Success of AI Models in Malware Detection
The explanation to an AI model's prediction used to support decision making in cyber security, is of critical importance. It is especially so when the model's incorrect prediction can lead to severe damages or even losses to lives and critical assets. However, most existing AI models lack the ability to provide explana...
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305,872
1807.00686
YH Technologies at ActivityNet Challenge 2018
This notebook paper presents an overview and comparative analysis of our systems designed for the following five tasks in ActivityNet Challenge 2018: temporal action proposals, temporal action localization, dense-captioning events in videos, trimmed action recognition, and spatio-temporal action localization.
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101,896
2009.07165
Beyond Individualized Recourse: Interpretable and Interactive Summaries of Actionable Recourses
As predictive models are increasingly being deployed in high-stakes decision-making, there has been a lot of interest in developing algorithms which can provide recourses to affected individuals. While developing such tools is important, it is even more critical to analyse and interpret a predictive model, and vet it t...
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false
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195,851
2007.05428
Joint Blind Deconvolution and Robust Principal Component Analysis for Blood Flow Estimation in Medical Ultrasound Imaging
This paper addresses the problem of high-resolution Doppler blood flow estimation from an ultrafast sequence of ultrasound images. Formulating the separation of clutter and blood components as an inverse problem has been shown in the literature to be a good alternative to spatio-temporal singular value decomposition (S...
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186,671
1712.10136
Learning Deep and Compact Models for Gesture Recognition
We look at the problem of developing a compact and accurate model for gesture recognition from videos in a deep-learning framework. Towards this we propose a joint 3DCNN-LSTM model that is end-to-end trainable and is shown to be better suited to capture the dynamic information in actions. The solution achieves close to...
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false
false
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true
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false
false
87,456
2209.02681
How important are activation functions in regression and classification? A survey, performance comparison, and future directions
Inspired by biological neurons, the activation functions play an essential part in the learning process of any artificial neural network commonly used in many real-world problems. Various activation functions have been proposed in the literature for classification as well as regression tasks. In this work, we survey th...
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316,276
2411.10004
EyeDiff: text-to-image diffusion model improves rare eye disease diagnosis
The rising prevalence of vision-threatening retinal diseases poses a significant burden on the global healthcare systems. Deep learning (DL) offers a promising solution for automatic disease screening but demands substantial data. Collecting and labeling large volumes of ophthalmic images across various modalities enco...
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508,453
2406.12387
Performant ASR Models for Medical Entities in Accented Speech
Recent strides in automatic speech recognition (ASR) have accelerated their application in the medical domain where their performance on accented medical named entities (NE) such as drug names, diagnoses, and lab results, is largely unknown. We rigorously evaluate multiple ASR models on a clinical English dataset of 93...
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465,379
1506.06068
A general framework for the IT-based clustering methods
Previously, we proposed a physically inspired rule to organize the data points in a sparse yet effective structure, called the in-tree (IT) graph, which is able to capture a wide class of underlying cluster structures in the datasets, especially for the density-based datasets. Although there are some redundant edges or...
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44,375
1101.3929
Characteristic Generators and Dualization for Tail-Biting Trellises
This paper focuses on dualizing tail-biting trellises, particularly KV-trellises. These trellises are based on characteristic generators, as introduced by Koetter/Vardy (2003), and may be regarded as a natural generalization of minimal conventional trellises, even though they are not necessarily minimal. Two dualizatio...
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8,867
2404.14092
Multi-agent Reinforcement Learning-based Joint Precoding and Phase Shift Optimization for RIS-aided Cell-Free Massive MIMO Systems
Cell-free (CF) massive multiple-input multiple-output (mMIMO) is a promising technique for achieving high spectral efficiency (SE) using multiple distributed access points (APs). However, harsh propagation environments often lead to significant communication performance degradation due to high penetration loss. To over...
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448,570
2002.04169
Edge Cache-assisted Secure Low-Latency Millimeter Wave Transmission
In this paper, we consider an edge cache-assisted millimeter wave cloud radio access network (C-RAN). Each remote radio head (RRH) in the C-RAN has a local cache, which can pre-fetch and store the files requested by the actuators. Multiple RRHs form a cluster to cooperatively serve the actuators, which acquire their re...
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163,527
2305.10472
Nine tips for ecologists using machine learning
Due to their high predictive performance and flexibility, machine learning models are an appropriate and efficient tool for ecologists. However, implementing a machine learning model is not yet a trivial task and may seem intimidating to ecologists with no previous experience in this area. Here we provide a series of t...
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365,092
2309.00625
Identifying Secure Operating Ranges for DER Control using Bilevel Optimization
Active distribution grids are accommodating an increasing number of controllable electric loads and distributed energy resources (DERs). A majority of these DERs are managed by entities other than the distribution utility, such as individual customers or third-party aggregators, who control the loads and DERs without c...
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389,362
2406.05510
Representation Learning with Conditional Information Flow Maximization
This paper proposes an information-theoretic representation learning framework, named conditional information flow maximization, to extract noise-invariant sufficient representations for the input data and target task. It promotes the learned representations have good feature uniformity and sufficient predictive abilit...
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462,165
2303.01313
Weakly-supervised HOI Detection via Prior-guided Bi-level Representation Learning
Human object interaction (HOI) detection plays a crucial role in human-centric scene understanding and serves as a fundamental building-block for many vision tasks. One generalizable and scalable strategy for HOI detection is to use weak supervision, learning from image-level annotations only. This is inherently challe...
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348,923