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Automatic source code summarization with graph attention networks
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DOI：10.1016/j.jss.2022.111257.png)
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Abstract
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Source code summarization aims to generate concise descriptions for code snippets in a natural language, thereby facilitates program comprehension and software maintenance. In this paper, we propose a novel approach-GSCS-to automatically generate summaries for Java methods, which leverages both semantic and structural information of the code snippets. To this end, GSCS utilizes Graph Attention Networks to process the tokenized abstract syntax tree of the program, which employ a multi-head attention mechanism to learn node features in diverse representation sub-spaces, and aggregate features by assigning different weights to its neighbor nodes. GSCS further harnesses an additional RNN-based sequence model to obtain the semantic features and optimizes the structure by combining its output with a transformed embedding layer. We evaluate our approach on two widely adopted Java datasets; the experiment results confirm that GSCS outperforms the state-of-the-art baselines. (c) 2022 Elsevier Inc. All rights reserved.
Keywords:
Source code summarization
Recurrent neural network
Graph neural network
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