Hugging Face BlogJul 25, 2025, 12:00 AMimportant 75

Hugging Face 推出 Parquet 內容定義分塊 (CDC):優化大規模 AI 資料集去重與傳輸效率

Original: Parquet Content-Defined Chunking

### What Is Parquet Content-Defined Chunking (CDC)? In the AI and machine learning field, dataset sizes are growing at a staggering pace…

Hugging Face 探討將「內容定義分塊 (CDC)」技術引入 Parquet 檔案格式。傳統固定大小分塊在資料微調時會導致快取失效,而 CDC 透過動態錨點切分,能精準識別重複內容。此技術將大幅優化大規模 AI 訓練資料集的去重效率、降低增量下載的頻寬消耗,並為 RAG 檢索提供更穩定的分塊基礎。

### What Is Parquet Content-Defined Chunking (CDC)?

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