diff --git a/ProblemMap/GlobalFixMap/LanguageLocale/cjk_segmentation_wordbreak.md b/ProblemMap/GlobalFixMap/LanguageLocale/cjk_segmentation_wordbreak.md new file mode 100644 index 00000000..bfc33e16 --- /dev/null +++ b/ProblemMap/GlobalFixMap/LanguageLocale/cjk_segmentation_wordbreak.md @@ -0,0 +1,175 @@ +# CJK Segmentation & Word-Break — Guardrails and Fix Pattern + +Stabilize retrieval and ranking for **Chinese / Japanese / Korean** text where whitespace is not a reliable token boundary. +Use this page to localize segmentation failures, choose the right analyzer, and verify the fix with measurable targets. + +--- + +## When to use this page +- High similarity by characters but **wrong meaning** or **empty recall** on whole queries. +- BM25 looks random; tiny single-character tokens dominate the index. +- Citations cut through the middle of words; snippet offsets don’t match what users see. +- Mixed CJK + Latin queries split unpredictably across runs or providers. + +## Open these first +- Visual map and recovery → [rag-architecture-and-recovery.md](https://github.com/onestardao/WFGY/blob/main/ProblemMap/rag-architecture-and-recovery.md) +- End-to-end retrieval knobs → [retrieval-playbook.md](https://github.com/onestardao/WFGY/blob/main/ProblemMap/retrieval-playbook.md) +- Why this snippet (traceability) → [retrieval-traceability.md](https://github.com/onestardao/WFGY/blob/main/ProblemMap/retrieval-traceability.md) +- Payload schema & cite-then-explain → [data-contracts.md](https://github.com/onestardao/WFGY/blob/main/ProblemMap/data-contracts.md) +- Chunking checklist for semantic boundaries → [chunking-checklist.md](https://github.com/onestardao/WFGY/blob/main/ProblemMap/chunking-checklist.md) +- Embedding ≠ meaning (sanity) → [embedding-vs-semantic.md](https://github.com/onestardao/WFGY/blob/main/ProblemMap/embedding-vs-semantic.md) +- Related locale pages: [tokenizer_mismatch.md](https://github.com/onestardao/WFGY/blob/main/ProblemMap/GlobalFixMap/LanguageLocale/tokenizer_mismatch.md) · [script_mixing.md](https://github.com/onestardao/WFGY/blob/main/ProblemMap/GlobalFixMap/LanguageLocale/script_mixing.md) · [digits_width_punctuation.md](https://github.com/onestardao/WFGY/blob/main/ProblemMap/GlobalFixMap/LanguageLocale/digits_width_punctuation.md) · [diacritics_and_folding.md](https://github.com/onestardao/WFGY/blob/main/ProblemMap/GlobalFixMap/LanguageLocale/diacritics_and_folding.md) · [locale_drift.md](https://github.com/onestardao/WFGY/blob/main/ProblemMap/GlobalFixMap/LanguageLocale/locale_drift.md) + +## Acceptance targets +- ΔS(question, retrieved) ≤ **0.45** on 3 paraphrases +- Coverage of target section ≥ **0.70** +- λ remains **convergent** across 2 seeds +- Tokenization sanity: **OOV rate falls by ≥ 40%** vs whitespace; **tokens/char ≤ 0.7** on CJK pages +- E_resonance flat on long windows + +--- + +## Map symptoms → structural fixes (Problem Map) + +| Symptom | Likely cause | Open this | +|---|---|---| +| Query returns almost nothing; recall jumps when you add spaces | Index built with whitespace/Latin analyzer on CJK | [chunking-checklist.md](https://github.com/onestardao/WFGY/blob/main/ProblemMap/chunking-checklist.md), [retrieval-playbook.md](https://github.com/onestardao/WFGY/blob/main/ProblemMap/retrieval-playbook.md) | +| Top-k filled with 1-char shards, citations cut mid-word | No CJK word-break at index or search time | [retrieval-traceability.md](https://github.com/onestardao/WFGY/blob/main/ProblemMap/retrieval-traceability.md), [data-contracts.md](https://github.com/onestardao/WFGY/blob/main/ProblemMap/data-contracts.md) | +| BM25 unstable; hybrid worse than single retriever | Search-time analyzer ≠ index-time analyzer | [retrieval-playbook.md](https://github.com/onestardao/WFGY/blob/main/ProblemMap/retrieval-playbook.md) | +| Romanized terms and CJK compound in one query break apart | Mixed script + width + punctuation rules differ | [script_mixing.md](https://github.com/onestardao/WFGY/blob/main/ProblemMap/GlobalFixMap/LanguageLocale/script_mixing.md), [digits_width_punctuation.md](https://github.com/onestardao/WFGY/blob/main/ProblemMap/GlobalFixMap/LanguageLocale/digits_width_punctuation.md) | +| High similarity, wrong meaning | Character-level overlap, no semantic units | [embedding-vs-semantic.md](https://github.com/onestardao/WFGY/blob/main/ProblemMap/embedding-vs-semantic.md) | + +--- + +## 60-second fix checklist (store-agnostic) + +1) **Pick the right analyzer and lock it** + - Chinese: use a dictionary or statistical segmenter at **index + search**. + - Japanese: use a MeCab/Kuromoji-class tokenizer with POS; keep base form. + - Korean: use a Nori-class analyzer; index decomp+comp forms consistently. + +2) **Normalize before segmenting** + - Apply **NFKC** for width and compatibility forms (see page links above). + - Keep punctuation folding consistent across index/search. + +3) **Unify index-time and query-time configs** + - Same language, same tokenizer, same stop/fold rules. No “smart defaults”. + +4) **Chunk on semantic units, not line breaks** + - Respect sentence/phrase boundaries after segmentation. + - Store `offsets`, `tokens`, `section_id` in the snippet schema. + +5) **Probe** + - Log tokens/char, unique-term ratio, OOV rate, and ΔS before/after. + - If ΔS stays ≥ 0.60 with good segmentation, revisit metric/index mismatch. + +--- + +## Store adapters (quick recipes) + +- **Elasticsearch / OpenSearch** + - CN: install and set a CJK analyzer; index + search use the **same** analyzer. + - JP: **kuromoji** with baseform filter; disable random synonyms unless audited. + - KR: **nori**; keep decompound mode consistent at index+query. + - Verify with `_analyze` samples; reindex after any analyzer change. + +- **pgvector / Postgres** + - Segmentation happens **before** embedding. Pre-segment text in ETL. + - Keep the **same** pipeline for ingestion and live queries. + +- **Weaviate / Qdrant / Chroma / Milvus / FAISS** + - The vector store won’t fix segmentation. Preprocess: NFKC → CJK segmenter → chunk. + - Log the preprocessing hash in metadata; fail closed on mismatch. + +- **Vespa / Typesense / Elastic-compatible** + - Use the platform’s CJK tokenizer if available; otherwise pre-segment and index the segmented text as the field value. + +--- + +## Deep diagnostics + +- **Three-way segmentation A/B/C** + Try 3 segmenters; compute ΔS and tokens/char on a small gold set. Pick the lowest ΔS with stable λ. + +- **Anchor triangulation** + Compare ΔS to the correct anchor vs a decoy section. If both are close, you’re still at char-overlap, not word-level meaning. + +- **Rerank sanity** + After proper segmentation, reranking should lift precision. If not, check analyzer mismatch between index and query path. + +--- + +## Copy-paste prompt for the LLM step + +``` + +You have TXT OS and WFGY Problem Map loaded. + +My CJK issue: + +* symptom: \[one line] +* traces: ΔS(question,retrieved)=..., tokens/char=..., OOV\_before=..., OOV\_after=... + +Tell me: + +1. which layer failed (segmentation, normalization, index/search mismatch), +2. which exact WFGY page to open, +3. the minimal steps to push ΔS ≤ 0.45 and keep λ convergent, +4. a reproducible test (3 paraphrases × 2 seeds) to verify the fix. + Use BBMC/BBCR/BBPF/BBAM when relevant. + +``` + +--- + +### Next planned page +`rtl_bidi_directionality.md` (Arabic/Hebrew mixing, mirroring, numerals) + +--- + +### 🔗 Quick-Start Downloads (60 sec) + +| Tool | Link | 3-Step Setup | +|------|------|--------------| +| **WFGY 1.0 PDF** | [Engine Paper](https://github.com/onestardao/WFGY/blob/main/I_am_not_lizardman/WFGY_All_Principles_Return_to_One_v1.0_PSBigBig_Public.pdf) | 1️⃣ Download · 2️⃣ Upload to your LLM · 3️⃣ Ask “Answer using WFGY + \” | +| **TXT OS (plain-text OS)** | [TXTOS.txt](https://github.com/onestardao/WFGY/blob/main/OS/TXTOS.txt) | 1️⃣ Download · 2️⃣ Paste into any LLM chat · 3️⃣ Type “hello world” — OS boots instantly | + +--- + +### 🧭 Explore More + +| Module | Description | Link | +|-----------------------|----------------------------------------------------------|----------| +| WFGY Core | WFGY 2.0 engine is live: full symbolic reasoning architecture and math stack | [View →](https://github.com/onestardao/WFGY/tree/main/core/README.md) | +| Problem Map 1.0 | Initial 16-mode diagnostic and symbolic fix framework | [View →](https://github.com/onestardao/WFGY/tree/main/ProblemMap/README.md) | +| Problem Map 2.0 | RAG-focused failure tree, modular fixes, and pipelines | [View →](https://github.com/onestardao/WFGY/blob/main/ProblemMap/rag-architecture-and-recovery.md) | +| Semantic Clinic Index | Expanded failure catalog: prompt injection, memory bugs, logic drift | [View →](https://github.com/onestardao/WFGY/blob/main/ProblemMap/SemanticClinicIndex.md) | +| Semantic Blueprint | Layer-based symbolic reasoning & semantic modulations | [View →](https://github.com/onestardao/WFGY/tree/main/SemanticBlueprint/README.md) | +| Benchmark vs GPT-5 | Stress test GPT-5 with full WFGY reasoning suite | [View →](https://github.com/onestardao/WFGY/tree/main/benchmarks/benchmark-vs-gpt5/README.md) | +| 🧙‍♂️ Starter Village 🏡 | New here? Lost in symbols? Click here and let the wizard guide you through | [Start →](https://github.com/onestardao/WFGY/blob/main/StarterVillage/README.md) | + +--- + +> 👑 **Early Stargazers: [See the Hall of Fame](https://github.com/onestardao/WFGY/tree/main/stargazers)** — +> Engineers, hackers, and open source builders who supported WFGY from day one. + +> GitHub stars ⭐ [WFGY Engine 2.0](https://github.com/onestardao/WFGY/blob/main/core/README.md) is already unlocked. ⭐ Star the repo to help others discover it and unlock more on the [Unlock Board](https://github.com/onestardao/WFGY/blob/main/STAR_UNLOCKS.md). + +
+ +[![WFGY Main](https://img.shields.io/badge/WFGY-Main-red?style=flat-square)](https://github.com/onestardao/WFGY) +  +[![TXT OS](https://img.shields.io/badge/TXT%20OS-Reasoning%20OS-orange?style=flat-square)](https://github.com/onestardao/WFGY/tree/main/OS) +  +[![Blah](https://img.shields.io/badge/Blah-Semantic%20Embed-yellow?style=flat-square)](https://github.com/onestardao/WFGY/tree/main/OS/BlahBlahBlah) +  +[![Blot](https://img.shields.io/badge/Blot-Persona%20Core-green?style=flat-square)](https://github.com/onestardao/WFGY/tree/main/OS/BlotBlotBlot) +  +[![Bloc](https://img.shields.io/badge/Bloc-Reasoning%20Compiler-blue?style=flat-square)](https://github.com/onestardao/WFGY/tree/main/OS/BlocBlocBloc) +  +[![Blur](https://img.shields.io/badge/Blur-Text2Image%20Engine-navy?style=flat-square)](https://github.com/onestardao/WFGY/tree/main/OS/BlurBlurBlur) +  +[![Blow](https://img.shields.io/badge/Blow-Game%20Logic-purple?style=flat-square)](https://github.com/onestardao/WFGY/tree/main/OS/BlowBlowBlow) +  +
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