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Semantic code search has been widely adopted in both academia and industry. These approaches embed natural-language queries and code snippets into a shared embedding space and retrieve results based on vector similarity. Despit strong…

Software Engineering · Computer Science 2026-05-18 Yiming Liu , Ruofan Liu , Yun Lin , Zicong Zhang , Weiyu Kong , Pengnian Qi , Xiao Cheng , Weinan Zhang , Qianxiang Wang , Linpeng Huang

Deep Learning (DL) models to analyze source code have shown immense promise during the past few years. More recently, self-supervised pre-training has gained traction for learning generic code representations valuable for many downstream SE…

Software Engineering · Computer Science 2023-06-07 Yangruibo Ding , Saikat Chakraborty , Luca Buratti , Saurabh Pujar , Alessandro Morari , Gail Kaiser , Baishakhi Ray

This paper introduces a novel code-to-code search technique that enhances the performance of Large Language Models (LLMs) by including both static and dynamic features as well as utilizing both similar and dissimilar examples during…

Software Engineering · Computer Science 2024-04-17 Anthony Saieva , Saikat Chakraborty , Gail Kaiser

In recent years, the rise of deep learning and automation requirements in the software industry has elevated Intelligent Software Engineering to new heights. The number of approaches and applications in code understanding is growing, with…

Software Engineering · Computer Science 2022-05-04 Ruoting Wu , Yuxin Zhang , Qibiao Peng , Liang Chen , Zibin Zheng

Code embeddings capture the semantic representations of code and are crucial for various code-related large language model (LLM) applications, such as code search. Previous training primarily relies on optimizing the InfoNCE loss by…

Computation and Language · Computer Science 2025-07-18 Zuchen Gao , Zizheng Zhan , Xianming Li , Erxin Yu , Ziqi Zhan , Haotian Zhang , Bin Chen , Yuqun Zhang , Jing Li

Code retrieval is to find the code snippet from a large corpus of source code repositories that highly matches the query of natural language description. Recent work mainly uses natural language processing techniques to process both query…

Artificial Intelligence · Computer Science 2021-06-23 Xiang Ling , Lingfei Wu , Saizhuo Wang , Gaoning Pan , Tengfei Ma , Fangli Xu , Alex X. Liu , Chunming Wu , Shouling Ji

In deep learning for drug discovery, chemical data are often represented as simplified molecular-input line-entry system (SMILES) sequences which allow for straightforward implementation of natural language processing methodologies, one…

Machine Learning · Computer Science 2023-10-05 Kathryn E. Kirchoff , Travis Maxfield , Alexander Tropsha , Shawn M. Gomez

Semantic code search is the task of retrieving a code snippet given a textual description of its functionality. Recent work has been focused on using similarity metrics between neural embeddings of text and code. However, current language…

Machine Learning · Computer Science 2022-11-08 Shushan Arakelyan , Anna Hakhverdyan , Miltiadis Allamanis , Luis Garcia , Christophe Hauser , Xiang Ren

Code generation, the task of creating executable programs from natural language requirements, has recently seen tremendous advances through Chain-of-Thought (CoT) reasoning, which enables Large Language Models (LLMs) to develop high-level…

Software Engineering · Computer Science 2025-10-21 Shuzheng Gao , Chaozheng Wang , Cuiyun Gao , Michael R. Lyu

In this work, we explore the intersection of sparse coding theory and deep learning to enhance our understanding of feature extraction capabilities in advanced neural network architectures. We begin by introducing a novel class of Deep…

Machine Learning · Computer Science 2025-12-05 Jianfei Li , Han Feng , Ding-Xuan Zhou

While nowadays deep neural networks achieve impressive performances on semantic segmentation tasks, they are usually trained by optimizing pixel-wise losses such as cross-entropy. As a result, the predictions outputted by such networks…

Computer Vision and Pattern Recognition · Computer Science 2019-05-07 Yifu Chen , Arnaud Dapogny , Matthieu Cord

There is recently a surge in approaches that learn low-dimensional embeddings of nodes in networks. As there are many large-scale real-world networks, it's inefficient for existing approaches to store amounts of parameters in memory and…

Social and Information Networks · Computer Science 2018-12-24 Zhengyan Zhang , Cheng Yang , Zhiyuan Liu , Maosong Sun , Zhichong Fang , Bo Zhang , Leyu Lin

Traditional retrieval methods have been essential for assessing document similarity but struggle with capturing semantic nuances. Despite advancements in latent semantic analysis (LSA) and deep learning, achieving comprehensive semantic…

Information Retrieval · Computer Science 2024-09-27 Solmaz Seyed Monir , Irene Lau , Shubing Yang , Dongfang Zhao

Many software analysis methods have come to rely on machine learning approaches. Code segmentation - the process of decomposing source code into meaningful blocks - can augment these methods by featurizing code, reducing noise, and limiting…

Software Engineering · Computer Science 2019-07-23 Jacob Dormuth , Ben Gelman , Jessica Moore , David Slater

There have been multiple recent proposals on using deep neural networks for code search using natural language. Common across these proposals is the idea of $\mathit{embedding}$ code and natural language queries, into real vectors and then…

Software Engineering · Computer Science 2019-10-16 Jose Cambronero , Hongyu Li , Seohyun Kim , Koushik Sen , Satish Chandra

It is a challenging task to accurately perform semantic segmentation due to the complexity of real picture scenes. Many semantic segmentation methods based on traditional deep learning insufficiently captured the semantic and appearance…

Computer Vision and Pattern Recognition · Computer Science 2024-03-13 Haitong Tang , Shuang He , Mengduo Yang , Xia Lu , Qin Yu , Kaiyue Liu , Hongjie Yan , Nizhuan Wang

To accelerate software development, much research has been performed to help people understand and reuse the huge amount of available code resources. Two important tasks have been widely studied: code retrieval, which aims to retrieve code…

Software Engineering · Computer Science 2019-04-02 Ziyu Yao , Jayavardhan Reddy Peddamail , Huan Sun

Neural architecture search methods are able to find high performance deep learning architectures with minimal effort from an expert. However, current systems focus on specific use-cases (e.g. convolutional image classifiers and recurrent…

Machine Learning · Computer Science 2019-10-01 Renato Negrinho , Darshan Patil , Nghia Le , Daniel Ferreira , Matthew Gormley , Geoffrey Gordon

In long structured document retrieval, existing methods typically fine-tune pre-trained language models (PLMs) using contrastive learning on datasets lacking explicit structural information. This practice suffers from two critical issues:…

Information Retrieval · Computer Science 2025-09-03 Xinhao Huang , Zhibo Ren , Yipeng Yu , Ying Zhou , Zulong Chen , Zeyi Wen

Deep convolutional neural networks can use hierarchical information to progressively extract structural information to recover high-quality images. However, preserving the effectiveness of the obtained structural information is important in…

Computer Vision and Pattern Recognition · Computer Science 2026-01-26 Chunwei Tian , Chengyuan Zhang , Bob Zhang , Zhiwu Li , C. L. Philip Chen , David Zhang