activity
20102026
most citedFederated Learning: Challenges, Methods, and Future Directions

5.1k citations · 9.6k across the 102 of their papers we have counts for

collaborators

106 papers

cs.LG2026

Interaction-as-a-Judge

Wayne Chi, I-Hung Hsu, Li Chen +6

Coding agents are tasked with producing sophisticated interactive applications such as websites, desktop applications, and games. While humans assess these applications interactive…

cs.SE2026

Learning from 53.6K Real-World Developer Edits of AI-Generated Code

Jenny T. Liang, Mihika Bairathi, Wayne Chi +3

Imperfections in AI-generated code require that software developers modify the generated code manually, or by re-prompting an AI programming assistant. Manual code edits provide mo…

cs.LG2026

Toto 2.0: Time Series Forecasting Enters the Scaling Era

Emaad Khwaja, Chris Lettieri, Gerald Woo +10

We show that time series foundation models scale: a single training recipe produces reliable forecast-quality improvements from 4M to 2.5B parameters. We release Toto 2.0, a family…

cs.CL2026

ReproRepo: Scaling Reproducibility Audits with GitHub Repository Issues

Shanda Li, Qiuhong Anna Wei, Jingwu Tang +5

Reproducing research results from papers and released code is central to scientific progress. Existing works have introduced benchmarks to evaluate whether LLM agents can assist wi…

cs.LG2026

ARFBench: Benchmarking Time Series Question Answering Ability for Software Incident Response

Stephan Xie, Ben Cohen, Mononito Goswami +6

Time series question-answering (TSQA), in which we ask natural language questions to infer and reason about properties of time series, is a promising yet underexplored capability o…

cs.LG2026

Spend Less, Fit Better: Budget-Efficient Scaling Law Fitting via Active Experiment Selection

Sijie Li, Shanda Li, Haowei Lin +3

Scaling laws are used to plan multi-million-dollar training runs, but fitting those laws can itself cost millions. In modern large-scale workflows, assembling a sufficiently inform…

cs.LG2026

Learn Hard Problems During RL with Reference Guided Fine-tuning

Yangzhen Wu, Shanda Li, Zixin Wen +5

Reinforcement learning (RL) for mathematical reasoning can suffer from reward sparsity: for challenging problems, LLM fails to sample any correct trajectories, preventing RL from r…

cs.SE2026

Comparing Developer and LLM Biases in Code Evaluation

Aditya Mittal, Ryan Shar, Zichu Wu +6

As LLMs are increasingly used as judges in code applications, they should be evaluated in realistic interactive settings that capture partial context and ambiguous intent. We prese…

cs.SE2026

Beyond the Commit: Developer Perspectives on Productivity with AI Coding Assistants

Valerie Chen, Jasmyn He, Behnjamin Williams +2

Measuring developer productivity is a topic that has attracted attention from both academic research and industrial practice. In the age of AI coding assistants, it has become even…

cs.AI2026

GameDevBench: Evaluating Agentic Capabilities Through Game Development

Wayne Chi, Yixiong Fang, Arnav Yayavaram +8

Despite rapid progress on coding agents, progress on their multimodal counterparts has lagged behind. A key challenge is the scarcity of evaluation testbeds that combine the comple…

cs.LG2026

Pre-Generating Multi-Difficulty PDE Data for Few-Shot Neural PDE Solvers

Naman Choudhary, Vedant Singh, Ameet Talwalkar +3

A key aspect of learned partial differential equation (PDE) solvers is that the main cost often comes from generating training data with classical solvers rather than learning the…

cs.SE2025

EDIT-Bench: Evaluating LLM Abilities to Perform Real-World Instructed Code Edits

Wayne Chi, Valerie Chen, Ryan Shar +8

Instructed code editing, where LLMs directly modify a developer's existing code based on a user instruction, is becoming a widely used interaction mode in AI coding assistants. How…

cs.CL2025

Completion Collaboration: Scaling Collaborative Effort with Agents

Shannon Zejiang Shen, Valerie Chen, Ken Gu +11

Current evaluations of agents remain centered around one-shot task completion, failing to account for the inherently iterative and collaborative nature of many real-world problems,…

cs.CV2025

RECODE: Reasoning Through Code Generation for Visual Question Answering

Junhong Shen, Mu Cai, Bo Hu +4

Multimodal Large Language Models (MLLMs) struggle with precise reasoning for structured visuals like charts and diagrams, as pixel-based perception lacks a mechanism for verificati…

cs.AI2025

How can we assess human-agent interactions? Case studies in software agent design

Valerie Chen, Rohit Malhotra, Xingyao Wang +7

While benchmarks measure the accuracy of LLM-powered agents, they mostly assume full automation, failing to represent the collaborative nature of real-world use cases. In this pape…

cs.HC2025

Why Do Decision Makers (Not) Use AI? A Cross-Domain Analysis of Factors Impacting AI Adoption

Rebecca Yu, Valerie Chen, Ameet Talwalkar +1

Growing excitement around deploying AI across various domains calls for a careful assessment of how human decision-makers interact with AI-powered systems. In particular, it is ess…

cs.SE2025

Code with Me or for Me? How Increasing AI Automation Transforms Developer Workflows

Valerie Chen, Ameet Talwalkar, Robert Brennan +1

Developers now have access to a growing array of increasingly autonomous AI tools for software development. While many studies examine copilots that provide chat assistance or code…

cs.LG2025

Sample Complexity and Representation Ability of Test-time Scaling Paradigms

Baihe Huang, Shanda Li, Tianhao Wu +5

Test-time scaling paradigms have significantly advanced the capabilities of large language models (LLMs) on complex tasks. Despite their empirical success, theoretical understandin…

cs.LG2025

Thinking vs. Doing: Agents that Reason by Scaling Test-Time Interaction

Junhong Shen, Hao Bai, Lunjun Zhang +8

The current paradigm of test-time scaling relies on generating long reasoning traces ("thinking" more) before producing a response. In agent problems that require interaction, this…

cs.AI2025

CoMind: Towards Community-Driven Agents for Machine Learning Engineering

Sijie Li, Weiwei Sun, Shanda Li +2

Large language model (LLM) agents show promise in automating machine learning (ML) engineering. However, existing agents typically operate in isolation on a given research problem,…

cs.LG2025

FrontierCO: Real-World and Large-Scale Evaluation of Machine Learning Solvers for Combinatorial Optimization

Shengyu Feng, Weiwei Sun, Shanda Li +2

Machine learning (ML) has shown promise for tackling combinatorial optimization (CO), but much of the reported progress relies on small-scale, synthetic benchmarks that fail to cap…

cs.LG2025

This Time is Different: An Observability Perspective on Time Series Foundation Models

Ben Cohen, Emaad Khwaja, Youssef Doubli +16

We introduce Toto, a time series forecasting foundation model with 151 million parameters. Toto uses a modern decoder-only architecture coupled with architectural innovations desig…

cs.LG2025

CodePDE: An Inference Framework for LLM-driven PDE Solver Generation

Shanda Li, Tanya Marwah, Junhong Shen +4

Partial differential equations (PDEs) are fundamental to modeling physical systems, yet solving them remains a complex challenge. Traditional numerical solvers rely on expert knowl…

cs.HC2025

CodingGenie: A Proactive LLM-Powered Programming Assistant

Sebastian Zhao, Alan Zhu, Hussein Mozannar +3

While developers increasingly adopt tools powered by large language models (LLMs) in day-to-day workflows, these tools still require explicit user invocation. To seamlessly integra…