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ASE 2020
Mon 21 - Fri 25 September 2020 Melbourne, Australia
Thu 24 Sep 2020 08:40 - 09:00 at Kangaroo - Bugs and Automated Repair Chair(s): Jifeng Xuan

A large body of the literature of automated program repair develops approaches where patches are generated to be validated against an oracle (e.g., a test suite). Because such an oracle can be imperfect, the generated patches, although validated by the oracle, may actually be incorrect. While the state of the art explore research directions that require dynamic information or that rely on manually-crafted heuristics, we study the benefit of learning code representations in order to learn deep features that may encode the properties of patch correctness. Our empirical work mainly investigates different representation learning approaches for code changes to derive embeddings that are amenable to similarity computations. We report on findings based on embeddings produced by pre-trained and re-trained neural networks. Experimental results demonstrate the potential of embeddings to empower learning algorithms in reasoning about patch correctness: a machine learning predictor with BERT transformer-based embeddings associated with logistic regression yielded an AUC value of about 0.8 in the prediction of patch correctness on a deduplicated dataset of 1000 labeled patches. Our investigations show that learned representations can lead to reasonable performance when comparing against the state-of-the-art, PATCH-SIM, which relies on dynamic information. These representations may further be complementary to features that were carefully (manually) engineered in the literature.

Thu 24 Sep

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08:00 - 09:00
Bugs and Automated RepairResearch Papers at Kangaroo
Chair(s): Jifeng Xuan Wuhan University
No Strings Attached: An Empirical Study of String-related Software Bugs
Research Papers
Aryaz Eghbali University of Stuttgart, Michael Pradel University of Stuttgart, Germany
Pre-print File Attached
Research paper
Automated Patch Correctness Assessment: How Far are We?
Research Papers
Shangwen Wang National University of Defense Technology, Ming Wen Huazhong University of Science and Technology, China, Bo Lin National University of Defense Technology, Hongjun Wu National University of Defense Technology, Yihao Qin National University of Defense Technology, Deqing Zou Huazhong University of Science and Technology, Xiaoguang Mao National University of Defense Technology, Hai Jin Huazhong University of Science and Technology
DOI Pre-print Media Attached
Research paper
Evaluating Representation Learning of Code Changes for Predicting Patch Correctness in Program Repair
Research Papers
Haoye Tian University of Luxembourg, Kui Liu University of Luxembourg, Luxembourg, Abdoul Kader Kaboré University of Luxembourg, Anil Koyuncu University of Luxembourg, Luxembourg, Li Li Monash University, Australia, Jacques Klein University of Luxembourg, Luxembourg, Tegawendé F. Bissyandé University of Luxembourg, Luxembourg