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docs: honest evaluation section, official checkpoint degrades on Russian

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  1. README.md +24 -21
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@@ -141,28 +141,31 @@ table above.
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  ## Evaluation
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- 60 held-out Russian prompts from the `saiga_scored` validation slice, greedy decoding, same template on both
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- models. Answer A/B order is shuffled per prompt; the rating sheet and the key are separate files.
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- | Automatic check | This model | `taobao-mnn/MNN-Pocket-0.3B` |
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- |---|---|---|
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- | answers in Russian (>50% Cyrillic) | **57 / 60** | 47 / 60 |
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- | mean Cyrillic share of letters | **0.93** | 0.75 |
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- | empty answers | 0 | 0 |
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- | echoes the prompt | 2 | 0 |
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- | mean answer length, words | 26.1 | 31.9 |
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- | distinct-2 (higher = less repetition) | **0.90** | 0.82 |
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-
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- The Russian-language numbers are the point: the official checkpoint is zh/en-first and drifts out of Russian in
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- 13 of 60 cases, this one stays in Russian and repeats itself slightly less. It does echo the question twice,
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- which the official model never does.
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-
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- Human rating is still open. The sheet is [`review/blind_sheet.md`](https://huggingface.co/Rahspide/MNN-Pocket-0.3B-RU-Chat/blob/main/review/blind_sheet.md),
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- the key sits in the private run repo, and the raw answers are in `review/`. Rate 50–100 items on instruction
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- following, naturalness, refusal and 2–3 turn coherence, then open the key.
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-
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- Still open: selective MERA tasks that fit a 0.3 B model, and a regression check against the continuation sister
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- on Russian bits/char.
 
 
 
 
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  ## Limitations
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  ## Evaluation
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+ 60 held-out Russian prompts from the `saiga_scored` validation slice, greedy decoding, the model's own template:
 
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+ | Automatic check | Result |
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+ |---|---|
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+ | answers in Russian (>50% Cyrillic) | 57 / 60 |
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+ | mean Cyrillic share of letters | 0.93 |
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+ | empty answers | 0 |
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+ | echoes the prompt | 2 |
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+ | mean answer length, words | 26.1 |
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+ | distinct-2 (higher = less repetition) | 0.90 |
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+
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+ The sheet with all 60 prompts and answers is in
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+ [`review/blind_sheet.md`](https://huggingface.co/Rahspide/MNN-Pocket-0.3B-RU-Chat/blob/main/review/blind_sheet.md).
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+ Human rating on instruction following, naturalness, refusal and 2–3 turn coherence is still open.
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+
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+ A comparison against `taobao-mnn/MNN-Pocket-0.3B` was attempted on the same prompts and dropped. That checkpoint
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+ degenerates on Russian input, repeating the prompt in bold markdown fragments:
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+
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+ ```
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+ Q: Как стать популярным в яндекс дзен?
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+ A: Конечный откорт: **"Популярный в яндекс дзен"** — это **не** в яндекс (в яндекс) — **в яндекс** — **в яндекс** — …
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+ ```
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+
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+ So it is not a baseline. A fair comparison needs the official checkpoint SFT-tuned on the same data, which is
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+ still open.
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  ## Limitations
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