Is Semantic Chunking Worth the Computational Cost?

Fuente: arXiv
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Autores principales: Qu, Renyi, Tu, Ruixuan, Bao, Forrest
Formato: Preprint
Publicado: 2024
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author Qu, Renyi
Tu, Ruixuan
Bao, Forrest
author_facet Qu, Renyi
Tu, Ruixuan
Bao, Forrest
contents Recent advances in Retrieval-Augmented Generation (RAG) systems have popularized semantic chunking, which aims to improve retrieval performance by dividing documents into semantically coherent segments. Despite its growing adoption, the actual benefits over simpler fixed-size chunking, where documents are split into consecutive, fixed-size segments, remain unclear. This study systematically evaluates the effectiveness of semantic chunking using three common retrieval-related tasks: document retrieval, evidence retrieval, and retrieval-based answer generation. The results show that the computational costs associated with semantic chunking are not justified by consistent performance gains. These findings challenge the previous assumptions about semantic chunking and highlight the need for more efficient chunking strategies in RAG systems.
format Preprint
id arxiv_https___arxiv_org_abs_2410_13070
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Is Semantic Chunking Worth the Computational Cost?
Qu, Renyi
Tu, Ruixuan
Bao, Forrest
Computation and Language
Information Retrieval
Recent advances in Retrieval-Augmented Generation (RAG) systems have popularized semantic chunking, which aims to improve retrieval performance by dividing documents into semantically coherent segments. Despite its growing adoption, the actual benefits over simpler fixed-size chunking, where documents are split into consecutive, fixed-size segments, remain unclear. This study systematically evaluates the effectiveness of semantic chunking using three common retrieval-related tasks: document retrieval, evidence retrieval, and retrieval-based answer generation. The results show that the computational costs associated with semantic chunking are not justified by consistent performance gains. These findings challenge the previous assumptions about semantic chunking and highlight the need for more efficient chunking strategies in RAG systems.
title Is Semantic Chunking Worth the Computational Cost?
topic Computation and Language
Information Retrieval
url https://arxiv.org/abs/2410.13070