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- W2792299615 abstract "Summary Thesaurus‐based, code‐related, and software‐specific query expansion techniques are the main contributions in free‐form query search. However, these techniques still could not put the most relevant query result in the first position because they lack the ability to infer the expansion words that represent the user needs based on a given query. In this paper, we discover that code changes can imply what users want and propose a novel query expansion technique with code changes (QECC). It exploits (changes, contexts) pairs from changed methods. On the basis of statistical learning from pairs, it can infer code changes for a given query. In this way, it expands a query with code changes and recommends the query results that meet actual needs perfectly. In addition, we implement InstaRec to perform QECC and evaluate it with 195 039 change commits from GitHub and our code tracker. The results show that QECC can improve the precision of 3 code search algorithms (ie, IR, Portfolio, and VF) by up to 52% to 62% and outperform the state‐of‐the‐art query expansion techniques (ie, query expansion based on crowd knowledge and CodeHow) by 13% to 16% when the top 1 result is inspected." @default.
- W2792299615 created "2018-03-29" @default.
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- W2792299615 date "2018-02-27" @default.
- W2792299615 modified "2023-10-16" @default.
- W2792299615 title "Query expansion based on statistical learning from code changes" @default.
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- W2792299615 doi "https://doi.org/10.1002/spe.2574" @default.
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