Generating Java Methods: An Empirical Assessment of Four AI-Based Code Assistants
CoRR(2024)
摘要
AI-based code assistants are promising tools that can facilitate and speed up
code development. They exploit machine learning algorithms and natural language
processing to interact with developers, suggesting code snippets (e.g., method
implementations) that can be incorporated into projects. Recent studies
empirically investigated the effectiveness of code assistants using simple
exemplary problems (e.g., the re-implementation of well-known algorithms),
which fail to capture the spectrum and nature of the tasks actually faced by
developers. In this paper, we expand the knowledge in the area by comparatively
assessing four popular AI-based code assistants, namely GitHub Copilot,
Tabnine, ChatGPT, and Google Bard, with a dataset of 100 methods that we
constructed from real-life open-source Java projects, considering a variety of
cases for complexity and dependency from contextual elements. Results show that
Copilot is often more accurate than other techniques, yet none of the
assistants is completely subsumed by the rest of the approaches. Interestingly,
the effectiveness of these solutions dramatically decreases when dealing with
dependencies outside the boundaries of single classes.
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关键词
AI-based code assistants,code completion,Copilot,ChatGPT,Tabnine,Bard,empirical study
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