id stringlengths 9 16 | title stringlengths 4 278 | categories listlengths 1 13 | abstract stringlengths 3 4.08k | filtered_category_membership dict |
|---|---|---|---|---|
1009.5432 | An approximative calculation of the fractal structure in self-similar
tilings | [
"physics.soc-ph",
"cond-mat.dis-nn",
"cs.SI"
] | Fractal structures emerge from statistical and hierarchical processes in urban development or network evolution. In a class of efficient and robust geographical networks, we derive the size distribution of layered areas, and estimate the fractal dimension by using the distribution without huge computations. This method... | {
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1009.5473 | The thermodynamic temperature of a rhythmic spiking network | [
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"q-bio.NC"
] | Artificial neural networks built from two-state neurons are powerful computational substrates, whose computational ability is well understood by analogy with statistical mechanics. In this work, we introduce similar analogies in the context of spiking neurons in a fixed time window, where excitatory and inhibitory inpu... | {
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1009.5520 | Diversity and Polarization of Research Performance: Evidence from
Hungary | [
"cs.SI",
"stat.AP"
] | Measuring the intellectual diversity encoded in publication records as a proxy to the degree of interdisciplinarity has recently received considerable attention in the science mapping community. The present paper draws upon the use of the Stirling index as a diversity measure applied to a network model (customized scie... | {
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1009.5614 | Input Design for System Identification via Convex Relaxation | [
"math.OC",
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"math.ST",
"stat.TH"
] | This paper proposes a new framework for the optimization of excitation inputs for system identification. The optimization problem considered is to maximize a reduced Fisher information matrix in any of the classical D-, E-, or A-optimal senses. In contrast to the majority of published work on this topic, we consider th... | {
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1009.5625 | Decomposition of Unitary Matrices for Finding Quantum Circuits:
Application to Molecular Hamiltonians | [
"quant-ph",
"cs.IT",
"math.IT"
] | Constructing appropriate unitary matrix operators for new quantum algorithms and finding the minimum cost gate sequences for the implementation of these unitary operators is of fundamental importance in the field of quantum information and quantum computation. Evolution of quantum circuits faces two major challenges: c... | {
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1009.5750 | Use of multiple singular value decompositions to analyze complex
intracellular calcium ion signals | [
"stat.AP",
"cs.CV",
"physics.bio-ph",
"q-bio.QM"
] | We compare calcium ion signaling ($\mathrm {Ca}^{2+}$) between two exposures; the data are present as movies, or, more prosaically, time series of images. This paper describes novel uses of singular value decompositions (SVD) and weighted versions of them (WSVD) to extract the signals from such movies, in a way that is... | {
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1009.5758 | Face Detection with Effective Feature Extraction | [
"cs.CV"
] | There is an abundant literature on face detection due to its important role in many vision applications. Since Viola and Jones proposed the first real-time AdaBoost based face detector, Haar-like features have been adopted as the method of choice for frontal face detection. In this work, we show that simple features ot... | {
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1009.5760 | Secret Key Agreement from Vector Gaussian Sources by Rate Limited Public
Communication | [
"cs.IT",
"math.IT"
] | We investigate the secret key agreement from correlated vector Gaussian sources in which the legitimate parties can use the public communication with limited rate. For the class of protocols with the one-way public communication, we show that the optimal trade-off between the rate of key generation and the rate of the ... | {
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1009.5761 | Approximate Maximum A Posteriori Inference with Entropic Priors | [
"cs.SD",
"cs.LG"
] | In certain applications it is useful to fit multinomial distributions to observed data with a penalty term that encourages sparsity. For example, in probabilistic latent audio source decomposition one may wish to encode the assumption that only a few latent sources are active at any given time. The standard heuristic o... | {
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1009.5762 | Morphological dilation image coding with context weights prediction | [
"cs.IT",
"cs.MM",
"math.IT"
] | This paper proposes an adaptive morphological dilation image coding with context weights prediction. The new dilation method is not to use fixed models, but to decide whether a coefficient needs to be dilated or not according to the coefficient's predicted significance degree. It includes two key dilation technologies:... | {
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1009.5764 | The E8 Lattice and Error Correction in Multi-Level Flash Memory | [
"cs.IT",
"math.IT"
] | A construction using the E8 lattice and Reed-Solomon codes for error-correction in flash memory is given. Since E8 lattice decoding errors are bursty, a Reed-Solomon code over GF($2^8$) is well suited. This is a type of coded modulation, where the Euclidean distance of the lattice, which is an eight-dimensional signal ... | {
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1009.5773 | Fast Reinforcement Learning for Energy-Efficient Wireless Communications | [
"cs.LG"
] | We consider the problem of energy-efficient point-to-point transmission of delay-sensitive data (e.g. multimedia data) over a fading channel. Existing research on this topic utilizes either physical-layer centric solutions, namely power-control and adaptive modulation and coding (AMC), or system-level solutions based o... | {
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1009.5829 | Capacity Results for Relay Channels with Confidential Messages | [
"cs.IT",
"math.IT"
] | We consider a communication system where a relay helps transmission of messages from {a} sender to {a} receiver. The relay is considered not only as a helper but as a wire-tapper who can obtain some knowledge about transmitted messages. In this paper we study a relay channel with confidential messages(RCC), where a sen... | {
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1009.5894 | Some Theorems on the Algorithmic Approach to Probability Theory and
Information Theory | [
"cs.IT",
"math.IT"
] | This is a 1971 dissertation. Only its extended abstract was published at the time. While some results appeared in other publications, a number of details remained unpublished and may still have relevance. | {
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1009.5900 | On the Accuracy of the Wyner Model in Cellular Networks | [
"cs.IT",
"math.IT"
] | The Wyner model has been widely used to model and analyze cellular networks due to its simplicity and analytical tractability. Its key aspects include fixed user locations and the deterministic and homogeneous interference intensity. While clearly a significant simplification of a real cellular system, which has random... | {
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1009.5944 | Throughput-Optimal Random Access with Order-Optimal Delay | [
"cs.IT",
"math.IT"
] | In this paper, we consider CSMA policies for scheduling of multihop wireless networks with one-hop traffic. The main contribution of this paper is to propose Unlocking CSMA (U-CSMA) policy that enables to obtain high throughput with low (average) packet delay for large wireless networks. In particular, the delay under ... | {
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1009.5949 | Fast CRCs (Extended Version) | [
"cs.IT",
"math.IT"
] | CRCs have desirable properties for effective error detection. But their software implementation, which relies on many steps of the polynomial division, is typically slower than other codes such as weaker checksums. A relevant question is whether there are some particular CRCs that have fast implementation. In this pape... | {
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1009.5959 | On the Optimal Compressions in the Compress-and-Forward Relay Schemes | [
"cs.IT",
"math.IT"
] | ..... joint decoding provides more freedom in choosing the compression at the relay. However, the question remains whether this freedom of selecting the compression necessarily improves the achievable rate of the original message. It has been shown in (El Gamal and Kim, 2010) that the answer is negative in the single... | {
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1009.5972 | The Attentive Perceptron | [
"cs.LG"
] | We propose a focus of attention mechanism to speed up the Perceptron algorithm. Focus of attention speeds up the Perceptron algorithm by lowering the number of features evaluated throughout training and prediction. Whereas the traditional Perceptron evaluates all the features of each example, the Attentive Perceptron e... | {
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1009.5975 | Information-Theoretic Analysis of an Energy Harvesting Communication
System | [
"cs.IT",
"math.IT"
] | In energy harvesting communication systems, an exogenous recharge process supplies energy for the data transmission and arriving energy can be buffered in a battery before consumption. Transmission is interrupted if there is not sufficient energy. We address communication with such random energy arrivals in an informat... | {
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1009.5979 | Performance Analysis of the Matrix Pair Beamformer with Matrix Mismatch | [
"cs.IT",
"math.IT"
] | Matrix pair beamformer (MPB) is a blind beamformer. It exploits the temporal structure of the signal of interest (SOI) and applies generalized eigen-decomposition to a covariance matrix pair. Unlike other blind algorithms, it only uses the second order statistics. A key assumption in the previous work is that the two m... | {
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1009.5981 | Empirical Bayes methods corrected for small numbers of tests | [
"stat.ME",
"cs.IT",
"math.IT",
"math.ST",
"q-bio.QM",
"stat.TH"
] | Histogram-based empirical Bayes methods developed for analyzing data for large numbers of genes, SNPs, or other biological features tend to have large biases when applied to data with a smaller number of features such as genes with expression measured conventionally, proteins, and metabolites. To analyze such small-sca... | {
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1009.6008 | Multiple Access Channels with Cooperative Encoders and Channel State
Information | [
"cs.IT",
"math.IT"
] | The two-user Multiple Access Channel (MAC) with cooperative encoders and Channel State Information (CSI) is considered where two different scenarios are investigated: A two-user MAC with common message (MACCM) and a two-user MAC with conferencing encoders (MACCE). For both situations, the two cases where the CSI is kno... | {
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1009.6050 | Comments on "Consensus and Cooperation in Networked Multi-Agent Systems" | [
"cs.MA",
"cs.NI",
"math.OC"
] | This note corrects a pretty serious mistake and some inaccuracies in "Consensus and cooperation in networked multi-agent systems" by R. Olfati-Saber, J.A. Fax, and R.M. Murray, published in Vol. 95 of the Proceedings of the IEEE (2007, No. 1, P. 215-233). It also mentions several stronger results applicable to the clas... | {
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1009.6053 | Efficient Sampling of Band-limited Signals from Sine Wave Crossings | [
"cs.IT",
"math.CV",
"math.IT",
"math.NA"
] | This correspondence presents an efficient method for reconstructing a band-limited signal in the discrete domain from its crossings with a sine wave. The method makes it possible to design A/D converters that only deliver the crossing timings, which are then used to interpolate the input signal at arbitrary instants. P... | {
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1009.6057 | Network Flows for Functions | [
"cs.NI",
"cs.DC",
"cs.IT",
"math.IT"
] | We consider in-network computation of an arbitrary function over an arbitrary communication network. A network with capacity constraints on the links is given. Some nodes in the network generate data, e.g., like sensor nodes in a sensor network. An arbitrary function of this distributed data is to be obtained at a term... | {
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1009.6079 | A Multi-Interference-Channel Matrix Pair Beamformer for CDMA Systems | [
"cs.CE",
"cs.IT",
"math.IT"
] | Matrix pair beamformer (MPB) is a promising blind beamformer which exploits the temporal signature of the signal of interest (SOI) to acquire its spatial statistical information. It does not need any knowledge of directional information or training sequences. However, the major problem of the existing MPBs is that they... | {
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1009.6119 | A Comprehensive Survey of Data Mining-based Fraud Detection Research | [
"cs.AI",
"cs.CE"
] | This survey paper categorises, compares, and summarises from almost all published technical and review articles in automated fraud detection within the last 10 years. It defines the professional fraudster, formalises the main types and subtypes of known fraud, and presents the nature of data evidence collected within a... | {
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1009.6127 | Efficient Knowledge Base Management in DCSP | [
"cs.AI",
"cs.DC"
] | DCSP (Distributed Constraint Satisfaction Problem) has been a very important research area in AI (Artificial Intelligence). There are many application problems in distributed AI that can be formalized as DSCPs. With the increasing complexity and problem size of the application problems in AI, the required storage place... | {
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1009.6182 | Goodput Maximization in Cooperative Networks with ARQ | [
"cs.IT",
"math.IT"
] | In this paper, the average successful throughput, i.e., goodput, of a coded 3-node cooperative network is studied in a Rayleigh fading environment. It is assumed that a simple automatic repeat request (ARQ) technique is employed in the network so that erroneously received codeword is retransmitted until successful deli... | {
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1009.6197 | Secure Relay Beamforming over Cognitive Radio Channels | [
"cs.IT",
"math.IT"
] | In this paper, a cognitive relay channel is considered, and amplify-and-forward (AF) relay beamforming designs in the presence of an eavesdropper and a primary user are studied. Our objective is to optimize the performance of the cognitive relay beamforming system while limiting the interference in the direction of the... | {
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1009.6200 | Optimal Power Allocation for Secrecy Fading Channels Under
Spectrum-Sharing Constraints | [
"cs.IT",
"math.IT"
] | In the spectrum-sharing technology, a secondary user may utilize the primary user's licensed band as long as its interference to the primary user is below a tolerable value. In this paper, we consider a scenario in which a secondary user is operating in the presence of both a primary user and an eavesdropper. Hence, th... | {
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1009.6205 | Channel Coding over Multiple Coherence Blocks with Queueing Constraints | [
"cs.IT",
"math.IT"
] | This paper investigates the performance of wireless systems that employ finite-blocklength channel codes for transmission and operate under queueing constraints in the form of limitations on buffer overflow probabilities. A block fading model, in which fading stays constant in each coherence block and change independen... | {
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1009.6206 | On the Effective Capacity of Two-Hop Communication Systems | [
"cs.IT",
"math.IT"
] | In this paper, two-hop communication between a source and a destination with the aid of an intermediate relay node is considered. Both the source and intermediate relay node are assumed to operate under statistical quality of service (QoS) constraints imposed as limitations on the buffer overflow probabilities. It is f... | {
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1009.6215 | How to Extract the Geometry and Topology from Very Large 3D
Segmentations | [
"cs.CG",
"cs.CV",
"cs.DS"
] | Segmentation is often an essential intermediate step in image analysis. A volume segmentation characterizes the underlying volume image in terms of geometric information--segments, faces between segments, curves in which several faces meet--as well as a topology on these objects. Existing algorithms encode this informa... | {
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1010.0011 | Deterministic Compressed Sensing Matrices from Additive Character
Sequences | [
"cs.IT",
"math.IT"
] | Compressed sensing is a novel technique where one can recover sparse signals from the undersampled measurements. In this correspondence, a $K \times N$ measurement matrix for compressed sensing is deterministically constructed via additive character sequences. The Weil bound is then used to show that the matrix has asy... | {
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1010.0012 | An Embarrassingly Simple Speed-Up of Belief Propagation with Robust
Potentials | [
"cs.CV",
"cs.AI"
] | We present an exact method of greatly speeding up belief propagation (BP) for a wide variety of potential functions in pairwise MRFs and other graphical models. Specifically, our technique applies whenever the pairwise potentials have been {\em truncated} to a constant value for most pairs of states, as is commonly don... | {
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1010.0019 | Mantis: Predicting System Performance through Program Analysis and
Modeling | [
"cs.PF",
"cs.AI",
"cs.PL"
] | We present Mantis, a new framework that automatically predicts program performance with high accuracy. Mantis integrates techniques from programming language and machine learning for performance modeling, and is a radical departure from traditional approaches. Mantis extracts program features, which are information abo... | {
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1010.0034 | Spectral Control of Mobile Robot Networks | [
"cs.MA",
"cs.SY",
"math.OC"
] | The eigenvalue spectrum of the adjacency matrix of a network is closely related to the behavior of many dynamical processes run over the network. In the field of robotics, this spectrum has important implications in many problems that require some form of distributed coordination within a team of robots. In this paper,... | {
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1010.0041 | Throughput and Collision Analysis of Multi-Channel Multi-Stage Spectrum
Sensing Algorithms | [
"cs.PF",
"cs.IT",
"cs.NI",
"math.IT"
] | Multi-stage sensing is a novel concept that refers to a general class of spectrum sensing algorithms that divide the sensing process into a number of sequential stages. The number of sensing stages and the sensing technique per stage can be used to optimize performance with respect to secondary user throughput and the ... | {
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1010.0056 | Online Learning in Opportunistic Spectrum Access: A Restless Bandit
Approach | [
"math.OC",
"cs.LG"
] | We consider an opportunistic spectrum access (OSA) problem where the time-varying condition of each channel (e.g., as a result of random fading or certain primary users' activities) is modeled as an arbitrary finite-state Markov chain. At each instance of time, a (secondary) user probes a channel and collects a certain... | {
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1010.0060 | Design and Performance of Rate-compatible Non-Binary LDPC Convolutional
Codes | [
"cs.IT",
"math.IT"
] | In this paper, we present a construction method of non-binary low-density parity-check (LDPC) convolutional codes. Our construction method is an extension of Felstroem and Zigangirov construction for non-binary LDPC convolutional codes. The rate-compatibility of the non-binary convolutional code is also discussed. The ... | {
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1010.0066 | Continuous-time Discontinuous Equations in Bounded Confidence Opinion
Dynamics | [
"math.OC",
"cs.SI",
"cs.SY",
"math.DS"
] | This report studies a continuous-time version of the well-known Hegselmann-Krause model of opinion dynamics with bounded confidence. As the equations of this model have discontinuous right-hand side, we study their Krasovskii solutions. We present results about existence and completeness of solutions, and asymptotical ... | {
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1010.0122 | Rule-based Generation of Diff Evolution Mappings between Ontology
Versions | [
"cs.DB"
] | Ontologies such as taxonomies, product catalogs or web directories are heavily used and hence evolve frequently to meet new requirements or to better reflect the current instance data of a domain. To effectively manage the evolution of ontologies it is essential to identify the difference (Diff) between two ontology ve... | {
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1010.0145 | Multi-Agent Programming Contest 2010 - The Jason-DTU Team | [
"cs.MA"
] | We provide a brief description of the Jason-DTU system, including the methodology, the tools and the team strategy that we plan to use in the agent contest. | {
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1010.0150 | Implementing Lego Agents Using Jason | [
"cs.MA"
] | Since many of the currently available multi-agent frameworks are generally mostly intended for research, it can be difficult to built multi-agent systems using physical robots. In this report I describe a way to combine the multi-agent framework Jason, an extended version of the agent-oriented programming language Agen... | {
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1010.0155 | An Investigation of the Advantages of Organization-Centered Multi-Agent
Systems | [
"cs.MA"
] | Whereas classical multi-agent systems have the agent in center, there have recently been a development towards focusing more on the organization of the system. This allows the designer to focus on what the system goals are, without considering how the goals should be fulfilled. This paper investigates whether taking th... | {
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1010.0177 | Strongly Secure Communications Over the Two-Way Wiretap Channel | [
"cs.IT",
"math.IT"
] | We consider the problem of secure communications over the two-way wiretap channel under a strong secrecy criterion. We improve existing results by developing an achievable region based on strategies that exploit both the interference at the eavesdropper's terminal and cooperation between legitimate users. We leverage t... | {
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1010.0182 | List decoding for nested lattices and applications to relay channels | [
"cs.IT",
"math.IT"
] | We demonstrate a decoding scheme for nested lattice codes which is able to decode a list of a particular size which contains the transmitted codeword with high probability. This list decoder is analogous to that used in random coding arguments in achievability schemes of relay channels, and allows for the effective com... | {
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1010.0189 | Reed-Muller Codes for Peak Power Control in Multicarrier CDMA | [
"cs.IT",
"math.IT"
] | Reed-Muller codes are studied for peak power control in multicarrier code-division multiple access (MC-CDMA) communication systems. In a coded MC-CDMA system, the information data multiplexed from users is encoded by a Reed-Muller subcode and the codeword is fully-loaded to Walsh-Hadamard spreading sequences. The polyn... | {
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1010.0200 | Difference Antenna Selection and Power Allocation for Wireless Cognitive
Systems | [
"cs.IT",
"math.IT"
] | In this paper, we propose an antenna selection method in a wireless cognitive radio (CR) system, namely difference selection, whereby a single transmit antenna is selected at the secondary transmitter out of $M$ possible antennas such that the weighted difference between the channel gains of the data link and the inter... | {
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1010.0226 | An Information-theoretic Approach to Privacy | [
"cs.IT",
"math.IT"
] | Ensuring the usefulness of electronic data sources while providing necessary privacy guarantees is an important unsolved problem. This problem drives the need for an overarching analytical framework that can quantify the safety of personally identifiable information (privacy) while still providing a quantifable benefit... | {
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1010.0237 | Using Stochastic Models to Describe and Predict Social Dynamics of Web
Users | [
"cs.CY",
"cs.SI",
"physics.soc-ph"
] | Popularity of content in social media is unequally distributed, with some items receiving a disproportionate share of attention from users. Predicting which newly-submitted items will become popular is critically important for both hosts of social media content and its consumers. Accurate and timely prediction would en... | {
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1010.0280 | Infinite Families of Optimal Splitting Authentication Codes Secure
Against Spoofing Attacks of Higher Order | [
"cs.CR",
"cs.DM",
"cs.IT",
"math.CO",
"math.IT"
] | We consider the problem of constructing optimal authentication codes with splitting. New infinite families of such codes are obtained. In particular, we establish the first known infinite family of optimal authentication codes with splitting that are secure against spoofing attacks of order two. | {
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1010.0287 | Queue-Aware Distributive Resource Control for Delay-Sensitive Two-Hop
MIMO Cooperative Systems | [
"cs.LG"
] | In this paper, we consider a queue-aware distributive resource control algorithm for two-hop MIMO cooperative systems. We shall illustrate that relay buffering is an effective way to reduce the intrinsic half-duplex penalty in cooperative systems. The complex interactions of the queues at the source node and the relays... | {
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} |
1010.0298 | Steepest Ascent Hill Climbing For A Mathematical Problem | [
"cs.AI"
] | The paper proposes artificial intelligence technique called hill climbing to find numerical solutions of Diophantine Equations. Such equations are important as they have many applications in fields like public key cryptography, integer factorization, algebraic curves, projective curves and data dependency in super comp... | {
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1010.0301 | A Microwave Imaging and Enhancement Technique from Noisy Synthetic Data | [
"cs.CV",
"cs.NA"
] | An inverse iterative algorithm for microwave imaging based on moment method solution is presented here. The iterative scheme has been developed on constrained optimization technique and is certain to converge. Different mesh size for the model has been used here to overcome the Inverse Crime. The synthetic data at the ... | {
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1010.0302 | Spatial Networks | [
"cond-mat.stat-mech",
"cond-mat.dis-nn",
"cs.SI",
"physics.soc-ph",
"q-bio.NC"
] | Complex systems are very often organized under the form of networks where nodes and edges are embedded in space. Transportation and mobility networks, Internet, mobile phone networks, power grids, social and contact networks, neural networks, are all examples where space is relevant and where topology alone does not co... | {
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} |
1010.0316 | Two-User Gaussian Interference Channel with Finite Constellation Input
and FDMA | [
"cs.IT",
"math.IT"
] | In the two-user Gaussian Strong Interference Channel (GSIC) with finite constellation inputs, it is known that relative rotation between the constellations of the two users enlarges the Constellation Constrained (CC) capacity region. In this paper, a metric for finding the approximate angle of rotation (with negligibly... | {
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} |
1010.0333 | Effects of Single-Cycle Structure on Iterative Decoding for Low-Density
Parity-Check Codes | [
"cs.IT",
"math.IT"
] | We consider communication over the binary erasure channel (BEC) using low-density parity-check (LDPC) codes and belief propagation (BP) decoding. For fixed numbers of BP iterations, the bit error probability approaches a limit as blocklength tends to infinity, and the limit is obtained via density evolution. On the oth... | {
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} |
1010.0344 | Alternating-Offer Bargaining Games over the Gaussian Interference
Channel | [
"cs.IT",
"cs.GT",
"math.IT"
] | This paper tackles the problem of how two selfish users jointly determine the operating point in the achievable rate region of a two-user Gaussian interference channel through bargaining. In previous work, incentive conditions for two users to cooperate using a simple version of Han-Kobayashi scheme was studied and the... | {
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1010.0410 | Structure and Response in the World Trade Network | [
"q-fin.GN",
"cs.SI",
"physics.soc-ph"
] | We examine how the structure of the world trade network has been shaped by globalization and recessions over the last 40 years. We show that by treating the world trade network as an evolving system, theory predicts the trade network is more sensitive to evolutionary shocks and recovers more slowly from them now than i... | {
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} |
1010.0412 | Sequences of Inequalities Among New Divergence Measures | [
"cs.IT",
"math.IT"
] | There are three classical divergence measures exist in the literature on information theory and statistics. These are namely, Jeffryes-Kullback-Leiber J-divergence. Sibson-Burbea-Rao Jensen-Shannon divegernce and Taneja arithemtic-geometric mean divergence. These three measures bear an interesting relationship among ea... | {
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1010.0417 | Visual-hint Boundary to Segment Algorithm for Image Segmentation | [
"cs.CV"
] | Image segmentation has been a very active research topic in image analysis area. Currently, most of the image segmentation algorithms are designed based on the idea that images are partitioned into a set of regions preserving homogeneous intra-regions and inhomogeneous inter-regions. However, human visual intuition doe... | {
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1010.0418 | Quantum capacity under adversarial quantum noise: arbitrarily varying
quantum channels | [
"quant-ph",
"cs.IT",
"math-ph",
"math.IT",
"math.MP"
] | We investigate entanglement transmission over an unknown channel in the presence of a third party (called the adversary), which is enabled to choose the channel from a given set of memoryless but non-stationary channels without informing the legitimate sender and receiver about the particular choice that he made. This ... | {
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1010.0422 | Convolutional Matching Pursuit and Dictionary Training | [
"cs.CV"
] | Matching pursuit and K-SVD is demonstrated in the translation invariant setting | {
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1010.0431 | Multilevel compression of random walks on networks reveals hierarchical
organization in large integrated systems | [
"physics.soc-ph",
"cs.SI",
"physics.comp-ph"
] | To comprehend the hierarchical organization of large integrated systems, we introduce the hierarchical map equation, which reveals multilevel structures in networks. In this information-theoretic approach, we exploit the duality between compression and pattern detection; by compressing a description of a random walker ... | {
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1010.0433 | Derandomization and Group Testing | [
"cs.IT",
"math.IT"
] | The rapid development of derandomization theory, which is a fundamental area in theoretical computer science, has recently led to many surprising applications outside its initial intention. We will review some recent such developments related to combinatorial group testing. In its most basic setting, the aim of group t... | {
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1010.0476 | Interference Alignment as a Rank Constrained Rank Minimization | [
"cs.IT",
"cs.DC",
"cs.NI",
"math.IT"
] | We show that the maximization of the sum degrees-of-freedom for the static flat-fading multiple-input multiple-output (MIMO) interference channel is equivalent to a rank constrained rank minimization problem (RCRM), when the signal spaces span all available dimensions. The rank minimization corresponds to maximizing in... | {
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1010.0485 | Distributed Storage Codes Meet Multiple-Access Wiretap Channels | [
"cs.IT",
"cs.DC",
"cs.NI",
"math.IT"
] | We consider {\it i)} the overhead minimization of maximum-distance separable (MDS) storage codes for the repair of a single failed node and {\it ii)} the total secure degrees-of-freedom (S-DoF) maximization in a multiple-access compound wiretap channel. We show that the two problems are connected. Specifically, the ove... | {
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1010.0522 | Strong direct product conjecture holds for all relations in public coin
randomized one-way communication complexity | [
"cs.CC",
"cs.IT",
"math.IT"
] | Let f subset of X x Y x Z be a relation. Let the public coin one-way communication complexity of f, with worst case error 1/3, be denoted R^{1,pub}_{1/3}(f). We show that if for computing f^k (k independent copies of f), o(k R^{1,pub}_{1/3}(f)) communication is provided, then the success is exponentially small in k. Th... | {
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1010.0558 | Analyzing Network Coding Gossip Made Easy | [
"cs.DC",
"cs.DS",
"cs.IT",
"math.IT"
] | We give a new technique to analyze the stopping time of gossip protocols that are based on random linear network coding (RLNC). Our analysis drastically simplifies, extends and strengthens previous results. We analyze RLNC gossip in a general framework for network and communication models that encompasses and unifies t... | {
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1010.0601 | A Random Matrix--Theoretic Approach to Handling Singular Covariance
Estimates | [
"math.PR",
"cs.IT",
"math.IT",
"math.ST",
"physics.data-an",
"stat.TH"
] | In many practical situations we would like to estimate the covariance matrix of a set of variables from an insufficient amount of data. More specifically, if we have a set of $N$ independent, identically distributed measurements of an $M$ dimensional random vector the maximum likelihood estimate is the sample covarianc... | {
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1010.0608 | Real-time Robust Principal Components' Pursuit | [
"cs.CV",
"cs.IT",
"math.IT"
] | In the recent work of Candes et al, the problem of recovering low rank matrix corrupted by i.i.d. sparse outliers is studied and a very elegant solution, principal component pursuit, is proposed. It is motivated as a tool for video surveillance applications with the background image sequence forming the low rank part a... | {
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1010.0609 | Selfish Response to Epidemic Propagation | [
"cs.SY",
"cs.MA",
"nlin.AO"
] | An epidemic spreading in a network calls for a decision on the part of the network members: They should decide whether to protect themselves or not. Their decision depends on the trade-off between their perceived risk of being infected and the cost of being protected. The network members can make decisions repeatedly, ... | {
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} |
1010.0621 | Local Optimality of User Choices and Collaborative Competitive Filtering | [
"stat.ML",
"cs.IR",
"cs.SI",
"stat.AP"
] | While a user's preference is directly reflected in the interactive choice process between her and the recommender, this wealth of information was not fully exploited for learning recommender models. In particular, existing collaborative filtering (CF) approaches take into account only the binary events of user actions ... | {
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1010.0624 | Eigenvalue Results for Large Scale Random Vandermonde Matrices with Unit
Complex Entries | [
"math.PR",
"cs.IT",
"math.IT",
"physics.data-an"
] | This paper centers on the limit eigenvalue distribution for random Vandermonde matrices with unit magnitude complex entries. The phases of the entries are chosen independently and identically distributed from the interval $[-\pi,\pi]$. Various types of distribution for the phase are considered and we establish the exis... | {
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1010.0642 | Error Performance of Channel Coding in Random Access Communication | [
"cs.IT",
"math.IT"
] | A new channel coding approach was proposed in [1] for random multiple access communication over the discrete-time memoryless channel. The coding approach allows users to choose their communication rates independently without sharing the rate information among each other or with the receiver. The receiver will either de... | {
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1010.0654 | On Equivalence Between Network Topologies | [
"cs.IT",
"math.IT"
] | One major open problem in network coding is to characterize the capacity region of a general multi-source multi-demand network. There are some existing computational tools for bounding the capacity of general networks, but their computational complexity grows very quickly with the size of the network. This motivates us... | {
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1010.0670 | Unconditionally Secure Computation on Large Distributed Databases with
Vanishing Cost | [
"cs.CR",
"cs.IT",
"math.IT"
] | Consider a network of k parties, each holding a long sequence of n entries (a database), with minimum vertex-cut greater than t. We show that any empirical statistic across the network of databases can be computed by each party with perfect privacy, against any set of t < k/2 passively colluding parties, such that the ... | {
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} |
1010.0694 | Statistical inference optimized with respect to the observed sample for
single or multiple comparisons | [
"math.ST",
"cs.IT",
"math.IT",
"q-bio.BM",
"stat.ME",
"stat.TH"
] | The normalized maximum likelihood (NML) is a recent penalized likelihood that has properties that justify defining the amount of discrimination information (DI) in the data supporting an alternative hypothesis over a null hypothesis as the logarithm of an NML ratio, namely, the alternative hypothesis NML divided by the... | {
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} |
1010.0696 | Robust H_infinity Filter Design for Lipschitz Nonlinear Systems via
Multiobjective Optimization | [
"cs.SY",
"math.OC"
] | In this paper, a new method of H_infinity observer design for Lipschitz nonlinear systems is proposed in the form of an LMI optimization problem. The proposed observer has guaranteed decay rate (exponential convergence) and is robust against unknown exogenous disturbance. In addition, thanks to the linearity of the pro... | {
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1010.0725 | Link Prediction in Complex Networks: A Survey | [
"physics.soc-ph",
"cs.SI",
"physics.comp-ph"
] | Link prediction in complex networks has attracted increasing attention from both physical and computer science communities. The algorithms can be used to extract missing information, identify spurious interactions, evaluate network evolving mechanisms, and so on. This article summaries recent progress about link predic... | {
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1010.0743 | Strong security and separated code constructions for the broadcast
channels with confidential messages | [
"cs.IT",
"cs.CR",
"math.IT"
] | We show that the capacity region of the broadcast channel with confidential messages does not change when the strong security criterion is adopted instead of the weak security criterion traditionally used. We also show a construction method of coding for the broadcast channel with confidential messages by using an arbi... | {
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1010.0771 | Genetic Algorithm for Mulicriteria Optimization of a Multi-Pickup and
Delivery Problem with Time Windows | [
"cs.NE"
] | In This paper we present a genetic algorithm for mulicriteria optimization of a multipickup and delivery problem with time windows (m-PDPTW). The m-PDPTW is an optimization vehicles routing problem which must meet requests for transport between suppliers and customers satisfying precedence, capacity and time constraint... | {
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1010.0781 | Transmission Capacity of Spectrum Sharing Ad-hoc Networks with Multiple
Antennas | [
"cs.IT",
"math.IT"
] | Two coexisting ad-hoc networks, primary and secondary, are considered, where each node of the primary network has a single antenna, while each node of the secondary network is equipped with multiple antennas. Using multiple antennas, each secondary transmitter uses some of its spatial transmit degrees of freedom (STDOF... | {
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1010.0803 | Node similarity as a basic principle behind connectivity in complex
networks | [
"physics.soc-ph",
"cond-mat.stat-mech",
"cs.SI"
] | How are people linked in a highly connected society? Since in many networks a power-law (scale-free) node-degree distribution can be observed, power-law might be seen as a universal characteristics of networks. But this study of communication in the Flickr social online network reveals that power-law node-degree distri... | {
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1010.0846 | A strong direct product theorem for two-way public coin communication
complexity | [
"cs.CC",
"cs.IT",
"math.IT"
] | We show a direct product result for two-way public coin communication complexity of all relations in terms of a new complexity measure that we define. Our new measure is a generalization to non-product distributions of the two-way product subdistribution bound of [J, Klauck and Nayak 08], thereby our result implying th... | {
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1010.0863 | Coevolution of Glauber-like Ising dynamics on typical networks | [
"physics.soc-ph",
"cond-mat.stat-mech",
"cs.SI"
] | We consider coevolution of site status and link structures from two different initial networks: a one dimensional Ising chain and a scale free network. The dynamics is governed by a preassigned stability parameter $S$, and a rewiring factor $\phi$, that determines whether the Ising spin at the chosen site flips or whet... | {
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1010.0886 | A Platform-independent Programming Environment for Robot Control | [
"cs.RO"
] | The development of robot control programs is a complex task. Many robots are different in their electrical and mechanical structure which is also reflected in the software. Specific robot software environments support the program development, but are mainly text-based and usually applied by experts in the field with pr... | {
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"cs.RO": 1,
"cs.SD": 0,
"cs.SI": 0,
"cs.SY": 0
} |
1010.0924 | Preserving Privacy in Sequential Data Release against Background
Knowledge Attacks | [
"cs.DB"
] | A large amount of transaction data containing associations between individuals and sensitive information flows everyday into data stores. Examples include web queries, credit card transactions, medical exam records, transit database records. The serial release of these data to partner institutions or data analysis cent... | {
"Other": 0,
"cs.AI": 0,
"cs.CE": 0,
"cs.CL": 0,
"cs.CR": 0,
"cs.CV": 0,
"cs.CY": 0,
"cs.DB": 1,
"cs.HC": 0,
"cs.IR": 0,
"cs.IT": 0,
"cs.LG": 0,
"cs.MA": 0,
"cs.NE": 0,
"cs.RO": 0,
"cs.SD": 0,
"cs.SI": 0,
"cs.SY": 0
} |
1010.0933 | Interference Alignment with Limited Feedback on Two-cell Interfering
Two-User MIMO-MAC | [
"cs.IT",
"math.IT"
] | In this paper, we consider a two-cell interfering two-user multiple-input multiple-output multiple access channel (MIMO-MAC) with limited feedback. We first investigate the multiplexing gain of such channel when users have perfect channel state information at transmitter (CSIT) by exploiting an interference alignment s... | {
"Other": 0,
"cs.AI": 0,
"cs.CE": 0,
"cs.CL": 0,
"cs.CR": 0,
"cs.CV": 0,
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"cs.DB": 0,
"cs.HC": 0,
"cs.IR": 0,
"cs.IT": 1,
"cs.LG": 0,
"cs.MA": 0,
"cs.NE": 0,
"cs.RO": 0,
"cs.SD": 0,
"cs.SI": 0,
"cs.SY": 0
} |
1010.0937 | Signal Space Alignment for an Encryption Message and Successive Network
Code Decoding on the MIMO K-way Relay Channel | [
"cs.IT",
"math.IT"
] | This paper investigates a network information flow problem for a multiple-input multiple-output (MIMO) Gaussian wireless network with $K$-users and a single intermediate relay having $M$ antennas. In this network, each user intends to convey a multicast message to all other users while receiving $K-1$ independent messa... | {
"Other": 0,
"cs.AI": 0,
"cs.CE": 0,
"cs.CL": 0,
"cs.CR": 0,
"cs.CV": 0,
"cs.CY": 0,
"cs.DB": 0,
"cs.HC": 0,
"cs.IR": 0,
"cs.IT": 1,
"cs.LG": 0,
"cs.MA": 0,
"cs.NE": 0,
"cs.RO": 0,
"cs.SD": 0,
"cs.SI": 0,
"cs.SY": 0
} |
1010.0979 | Un Algorithme g\'en\'etique pour le probl\`eme de ramassage et de
livraison avec fen\^etres de temps \`a plusieurs v\'ehicules | [
"cs.NE"
] | The PDPTW is an optimization vehicles routing problem which must meet requests for transport between suppliers and customers satisfying precedence, capacity and time constraints. We present, in this paper, a genetic algorithm for optimization of a multi pickup and delivery problem with time windows (m-PDPTW). We purpos... | {
"Other": 0,
"cs.AI": 0,
"cs.CE": 0,
"cs.CL": 0,
"cs.CR": 0,
"cs.CV": 0,
"cs.CY": 0,
"cs.DB": 0,
"cs.HC": 0,
"cs.IR": 0,
"cs.IT": 0,
"cs.LG": 0,
"cs.MA": 0,
"cs.NE": 1,
"cs.RO": 0,
"cs.SD": 0,
"cs.SI": 0,
"cs.SY": 0
} |
1010.0980 | Approche Multicrit\`ere pour le Probl\`eme de Ramassage et de Livraison
avec Fen\^etres de Temps \`a Plusieurs V\'ehicules | [
"cs.NE"
] | Nowadays, the transport goods problem occupies an important place in the economic life of modern societies. The pickup and delivery problem with time windows (PDPTW) is one of the problems which a large part of the research was interested. In this paper, we present a a brief literature review of the VRP and the PDPTW, ... | {
"Other": 0,
"cs.AI": 0,
"cs.CE": 0,
"cs.CL": 0,
"cs.CR": 0,
"cs.CV": 0,
"cs.CY": 0,
"cs.DB": 0,
"cs.HC": 0,
"cs.IR": 0,
"cs.IT": 0,
"cs.LG": 0,
"cs.MA": 0,
"cs.NE": 1,
"cs.RO": 0,
"cs.SD": 0,
"cs.SI": 0,
"cs.SY": 0
} |
1010.1016 | Multilevel Coding Schemes for Compute-and-Forward | [
"cs.IT",
"math.IT"
] | We investigate techniques for designing modulation/coding schemes for the wireless two-way relaying channel. The relay is assumed to have perfect channel state information, but the transmitters are assumed to have no channel state information. We consider physical layer network coding based on multilevel coding techniq... | {
"Other": 0,
"cs.AI": 0,
"cs.CE": 0,
"cs.CL": 0,
"cs.CR": 0,
"cs.CV": 0,
"cs.CY": 0,
"cs.DB": 0,
"cs.HC": 0,
"cs.IR": 0,
"cs.IT": 1,
"cs.LG": 0,
"cs.MA": 0,
"cs.NE": 0,
"cs.RO": 0,
"cs.SD": 0,
"cs.SI": 0,
"cs.SY": 0
} |
1010.1024 | Superselectors: Efficient Constructions and Applications | [
"cs.DS",
"cs.DM",
"cs.IT",
"math.IT"
] | We introduce a new combinatorial structure: the superselector. We show that superselectors subsume several important combinatorial structures used in the past few years to solve problems in group testing, compressed sensing, multi-channel conflict resolution and data security. We prove close upper and lower bounds on t... | {
"Other": 1,
"cs.AI": 0,
"cs.CE": 0,
"cs.CL": 0,
"cs.CR": 0,
"cs.CV": 0,
"cs.CY": 0,
"cs.DB": 0,
"cs.HC": 0,
"cs.IR": 0,
"cs.IT": 1,
"cs.LG": 0,
"cs.MA": 0,
"cs.NE": 0,
"cs.RO": 0,
"cs.SD": 0,
"cs.SI": 0,
"cs.SY": 0
} |
1010.1028 | Stealing Reality | [
"cs.SI",
"physics.soc-ph"
] | In this paper we discuss the threat of malware targeted at extracting information about the relationships in a real-world social network as well as characteristic information about the individuals in the network, which we dub Stealing Reality. We present Stealing Reality, explain why it differs from traditional types o... | {
"Other": 0,
"cs.AI": 0,
"cs.CE": 0,
"cs.CL": 0,
"cs.CR": 0,
"cs.CV": 0,
"cs.CY": 0,
"cs.DB": 0,
"cs.HC": 0,
"cs.IR": 0,
"cs.IT": 0,
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"cs.MA": 0,
"cs.NE": 0,
"cs.RO": 0,
"cs.SD": 0,
"cs.SI": 1,
"cs.SY": 0
} |
1010.1037 | Stratified economic exchange on networks | [
"physics.soc-ph",
"cs.SI",
"nlin.CG"
] | We investigate a model of stratified economic interactions between agents when the notion of spatial location is introduced. The agents are placed on a network with near-neighbor connections. Interactions between neighbors can occur only if the difference in their wealth is less than a threshold value that defines the ... | {
"Other": 0,
"cs.AI": 0,
"cs.CE": 0,
"cs.CL": 0,
"cs.CR": 0,
"cs.CV": 0,
"cs.CY": 0,
"cs.DB": 0,
"cs.HC": 0,
"cs.IR": 0,
"cs.IT": 0,
"cs.LG": 0,
"cs.MA": 0,
"cs.NE": 0,
"cs.RO": 0,
"cs.SD": 0,
"cs.SI": 1,
"cs.SY": 0
} |
1010.1042 | Hidden Markov Models with Multiple Observation Processes | [
"math.PR",
"cs.IT",
"cs.LG",
"math.IT"
] | We consider a hidden Markov model with multiple observation processes, one of which is chosen at each point in time by a policy---a deterministic function of the information state---and attempt to determine which policy minimises the limiting expected entropy of the information state. Focusing on a special case, we pro... | {
"Other": 0,
"cs.AI": 0,
"cs.CE": 0,
"cs.CL": 0,
"cs.CR": 0,
"cs.CV": 0,
"cs.CY": 0,
"cs.DB": 0,
"cs.HC": 0,
"cs.IR": 0,
"cs.IT": 1,
"cs.LG": 1,
"cs.MA": 0,
"cs.NE": 0,
"cs.RO": 0,
"cs.SD": 0,
"cs.SI": 0,
"cs.SY": 0
} |
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