activity
20232026
most citedRevisiting Code Similarity Evaluation with Abstract Syntax Tree Edit Distance

15 citations · 28 across the 22 of their papers we have counts for

collaborators

22 papers

cs.SE2026

Memorization Diagnostics for Code LLMs Should be Scale-Aware

Prateek Kumar Rajput, Abdoul Aziz Bonkoungou, Alberick Euraste Djiré +6

The extent to which large language models for code rely on memorization over genuine understanding remains highly debated. While current literature frequently reports widespread me…

cs.SE2026

Empirical Study for Structured Output Control in LLMs for Software Engineering

Yewei Song, Prateek Rajput, Tiezhu Sun +3

LLM-generated outputs in software engineering rarely exist in isolation. They must plug into toolchains, APIs, and data pipelines that impose strict, often organization-specific st…

cs.CV2026

The Last Visible Pixel: Probing Fine-Scale Perception in Vision-Language Models

Lujun Li, Lama Sleem, Niccolo Gentile +4

Recent vision-language models (VLMs) excel at multimodal understanding and reasoning, yet their fine-grained visual perception remains underexplored. A natural extension of ``How m…

cs.CL2026

Evaluation Drift in LLM Personality Induction: Are We Moving the Goalpost?

Prateek Rajput, Yewei Song, Iyiola E. Olatunji +2

Can large language models reliably express a human-like personality, or are they merely mimicking surface cues without a stable underlying profile? To investigate this, we induce p…

cs.CL2026

Empirical Evaluation of PDF Parsing and Chunking for Financial Question Answering with RAG

Omar El Bachyr, Yewei Song, Saad Ezzini +5

PDF files are primarily intended for human reading rather than automated processing. In addition, the heterogeneous content of PDFs, such as text, tables, and images, poses signifi…

cs.CL2026

The Necessity of Setting Temperature in LLM-as-a-Judge

Lujun Li, Lama Sleem, Yangjie Xu +4

Large Language Models (LLMs) are increasingly used as automated judges, yet decoding temperature is often set by intuition rather than evidence. We run over one million large scale…

cs.AI2026

Agent Skill Framework: Perspectives on the Potential of Small to Medium Language Models in Industrial Environments

Yangjie Xu, Lujun Li, Lama Sleem +7

Skills are getting increasingly used in recent agentic frameworks, performing robustly with proprietary LLMs. Yet, their effectiveness for small and medium-sized open-source models…

cs.SE2026

Correctness isnt Efficiency: Runtime Memory Divergence in LLM-Generated Code

Prateek Rajput, Yewei Song, Abdoul Aziz Bonkoungou +4

Large language models (LLMs) can generate programs that pass unit tests, but passing tests does not guarantee reliable runtime behavior. We find that different correct solutions to…

cs.PL2025

Dynamic Stability of LLM-Generated Code

Prateek Rajput, Abdoul Aziz Bonkoungou, Yewei Song +4

Current evaluations of LLMs for code generation emphasize functional correctness, overlooking the fact that functionally correct solutions can differ significantly in algorithmic c…

cs.CL2025

Do Large Language Models Grasp The Grammar? Evidence from Grammar-Book-Guided Probing in Luxembourgish

Lujun Li, Yewei Song, Lama Sleem +7

Grammar refers to the system of rules that governs the structural organization and the semantic relations among linguistic units such as sentences, phrases, and words within a give…

cs.CR2025

MalLoc: Toward Fine-grained Android Malicious Payload Localization via LLMs

Tiezhu Sun, Marco Alecci, Aleksandr Pilgun +5

The rapid evolution of Android malware poses significant challenges to the maintenance and security of mobile applications (apps). Traditional detection techniques often struggle t…

cs.SE2025

Measuring LLM Code Generation Stability via Structural Entropy

Yewei Song, Tiezhu Sun, Xunzhu Tang +3

Assessing the stability of code generation from large language models (LLMs) is essential for judging their reliability in real-world development. We extend prior "structural-entro…

cs.CL2025

Is Small Language Model the Silver Bullet to Low-Resource Languages Machine Translation?

Yewei Song, Lujun Li, Cedric Lothritz +6

Low-resource languages (LRLs) lack sufficient linguistic resources and are underrepresented in benchmark datasets, resulting in persistently lower translation quality than high-res…

cs.SE2025

CallNavi, A Challenge and Empirical Study on LLM Function Calling and Routing

Yewei Song, Xunzhu Tang, Cedric Lothritz +6

API-driven chatbot systems are increasingly integral to software engineering applications, yet their effectiveness hinges on accurately generating and executing API calls. This is…

cs.SE2024★ 5 cited

Large-scale, Independent and Comprehensive study of the power of LLMs for test case generation

Wendkûuni C. Ouédraogo, Kader Kaboré, Yinghua Li +5

Unit testing is essential for software reliability, yet manual test creation is time-consuming and often neglected. Search-based software testing improves efficiency but produces t…

cs.CL2024★ 15 cited

Revisiting Code Similarity Evaluation with Abstract Syntax Tree Edit Distance

Yewei Song, Cedric Lothritz, Daniel Tang +2

This paper revisits recent code similarity evaluation metrics, particularly focusing on the application of Abstract Syntax Tree (AST) editing distance in diverse programming langua…

cs.SE2024★ 3 cited

CodeAgent: Autonomous Communicative Agents for Code Review

Xunzhu Tang, Kisub Kim, Yewei Song +6

Code review, which aims at ensuring the overall quality and reliability of software, is a cornerstone of software development. Unfortunately, while crucial, Code review is a labor-…

cs.SE2024

Enhancing Text-to-SQL Translation for Financial System Design

Yewei Song, Saad Ezzini, Xunzhu Tang +6

Text-to-SQL, the task of translating natural language questions into SQL queries, is part of various business processes. Its automation, which is an emerging challenge, will empowe…

cs.CR2023★ 1 cited

Just-in-Time Detection of Silent Security Patches

Xunzhu Tang, Zhenghan Chen, Kisub Kim +3

Open-source code is pervasive. In this setting, embedded vulnerabilities are spreading to downstream software at an alarming rate. While such vulnerabilities are generally identifi…

cs.SE2023★ 2 cited

Hyperbolic Code Retrieval: A Novel Approach for Efficient Code Search Using Hyperbolic Space Embeddings

Xunzhu Tang, zhenghan Chen, Saad Ezzini +4

Within the realm of advanced code retrieval, existing methods have primarily relied on intricate matching and attention-based mechanisms. However, these methods often lead to compu…

cs.SE2023★ 2 cited

Multilevel Semantic Embedding of Software Patches: A Fine-to-Coarse Grained Approach Towards Security Patch Detection

Xunzhu Tang, zhenghan Chen, Saad Ezzini +4

The growth of open-source software has increased the risk of hidden vulnerabilities that can affect downstream software applications. This concern is further exacerbated by softwar…

cs.CL2023

Letz Translate: Low-Resource Machine Translation for Luxembourgish

Yewei Song, Saad Ezzini, Jacques Klein +3

Natural language processing of Low-Resource Languages (LRL) is often challenged by the lack of data. Therefore, achieving accurate machine translation (MT) in a low-resource enviro…