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Code to Comment Translation: A Comparative Study on Model Effectiveness \& Errors

رمز التعليق الترجمة: دراسة مقارنة حول فعالية النموذج \ أخطاء

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 Publication date 2021
and research's language is English
 Created by Shamra Editor




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Automated source code summarization is a popular software engineering research topic wherein machine translation models are employed to translate'' code snippets into relevant natural language descriptions. Most evaluations of such models are conducted using automatic reference-based metrics. However, given the relatively large semantic gap between programming languages and natural language, we argue that this line of research would benefit from a qualitative investigation into the various error modes of current state-of-the-art models. Therefore, in this work, we perform both a quantitative and qualitative comparison of three recently proposed source code summarization models. In our quantitative evaluation, we compare the models based on the smoothed BLEU-4, METEOR, and ROUGE-L machine translation metrics, and in our qualitative evaluation, we perform a manual open-coding of the most common errors committed by the models when compared to ground truth captions. Our investigation reveals new insights into the relationship between metric-based performance and model prediction errors grounded in an error taxonomy that can be used to drive future research efforts.



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