docs(roadmap): Phase 進捗の反映と新規 Phase 追記#249
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- Phase 1 (Rewriter): 実装済み 5 rewriter + run_rewriters() を反映 ✅ - Phase 2 (POS 文節分割 + structure_cost): 実装内容を反映、残課題明記 ✅ - Phase 2.5 (スニペット): SnippetStore / VariableResolver を新規追加 ✅ - Phase 3: IT/業務辞書構築の動機・方針を追記 - Phase 4: karukan Adaptive Strategy を参考に追加 Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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Pull request overview
docs/ime-research.md のロードマップ節を、現状の実装状況（Phase 1/2/2.5 の到達点や Phase 3/4 の方針）に合わせて更新するドキュメント変更です。コード変更はなく、研究/設計メモとしての「今どこまでできていて次に何をするか」を読みやすく整理しています。
Changes:
- Phase 1（Rewriter パイプライン）を実装済み前提で具体的な rewriter 群と実行フローまで明記
- Phase 2（POS 文節分割 + structure_cost）を「ほぼ完了」として、実装済み要素と残課題を明確化
- Phase 2.5（スニペット機能）を新規 Phase として追記し、関連コンポーネントを記載
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| - NumericRewriter: ひらがな数字→漢数字/半角/全角 (最大 ~10^16) | ||
| - KatakanaRewriter: 全文カタカナ候補 | ||
| - HiraganaVariantRewriter: 漢字セグメント→ひらがな置換 | ||
| - PartialHiraganaRewriter: Top-5 パスの個別セグメント単位でひらがな置換 | ||
| - KanjiVariantRewriter: ひらがなセグメント(2文字)→漢字代替案 |
| - HiraganaVariantRewriter: 漢字セグメント→ひらがな置換 | ||
| - PartialHiraganaRewriter: Top-5 パスの個別セグメント単位でひらがな置換 | ||
| - KanjiVariantRewriter: ひらがなセグメント(2文字)→漢字代替案 | ||
| - run_rewriters() で順次実行、重複排除 |
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| - structure_cost: 遷移コスト集約 + ハードフィルタ + ソフトペナルティ (Mozc インスパイア) | ||
| - group_segments(): POS role ベースの形態素→句グループ化 (接尾辞/関数語マージ、接頭辞処理) | ||
| - resegment(): ラティスノードを使った代替分割案生成 (最大10パス) | ||
| - per-segment penalties: 非自立漢字、代名詞ボーナス、て形漢字、人名、単漢字内容語 | ||
| - length_variance: 3セグメント以上のパスで不均等分割にペナルティ |
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| - SnippetStore: HashMap ベース、prefix_search、TOML 設定 | ||
| - VariableResolver: $varname / ${varname} 展開、未定義変数検証 |
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概要
docs/ime-research.mdのロードマップ節を実装状況に合わせて更新。ドキュメントのみの変更（コード変更なし）。変更内容
run_rewriters()を反映group_segments()、resegment()、per-segment penalties、length_variance を反映。残課題（segmenter.def 相当の分割点補正）を明記テストプラン
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