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Zeyu Sun

10 accepted papers

2026

ClimaOoD: Improving Anomaly Segmentation via Physically Realistic Synthetic Data

CVPR 2026

Anomaly segmentation seeks to detect and localize unknown or out-of-distribution (OoD) objects that fall outside predefined semantic classes--a capability essential for safe autonomous driving. However, the scarcity and limited diversity of anomaly data severely constrain model generalization in ope

Cited by 0SourceScholar
2026

DSCodeBench: A Realistic Benchmark for Data Science Code Generation

AAAI 2026technical

We introduce DSCodeBench, a new benchmark designed to evaluate large language models (LLMs) on complicated and realistic data science code generation tasks. DSCodeBench consists of 1,000 carefully constructed problems sourced from realistic problems from GitHub across ten widely used Python data sci

Cited by 0SourcePDFScholar
2026

How Powerful are LLMs in Generating Program Specifications?

ICML 2026poster

Formal verification provides strong guarantees of software correctness, but its adoption is limited by the high cost of writing precise formal specifications. While recent large language models (LLMs) have demonstrated impressive capabilities in theorem proving and verified code generation, how powe…

Cited by 0SourceScholar
2025

Grammar-Based Code Representation: Is It a Worthy Pursuit for LLMs?

ACL 2025finding

Grammar serves as a cornerstone in programming languages and software engineering, providing frameworks to define the syntactic space and program structure. Existing research demonstrates the effectiveness of grammar-based code representations in small-scale models, showing their ability to reduce s…

Cited by 0SourcePDFScholar
2024

Performative Federated Learning: A Solution to Model-Dependent and Heterogeneous Distribution Shifts

AAAI 2024technical

We consider a federated learning (FL) system consisting of multiple clients and a server, where the clients aim to collaboratively learn a common decision model from their distributed data. Unlike the conventional FL framework that assumes the client's data is static, we consider scenarios where the…

2022

Generalized Equivariance and Preferential Labeling for GNN Node Classification

AAAI 2022technical

Existing graph neural networks (GNNs) largely rely on node embeddings, which represent a node as a vector by its identity, type, or content. However, graphs with unattributed nodes widely exist in real-world applications (e.g., anonymized social networks). Previous GNNs either assign random labels t…

2022

Lyra: A Benchmark for Turducken-Style Code Generation

IJCAI 2022poster

Recently, neural techniques have been used to generate source code automatically. While promising for declarative languages, these approaches achieve much poorer performance on datasets for imperative languages. Since a declarative language is typically embedded in an imperative language (i.e., the…

2020

NLocalSAT: Boosting Local Search with Solution Prediction

IJCAI 2020poster

The Boolean satisfiability problem (SAT) is a famous NP-complete problem in computer science. An effective way for solving a satisfiable SAT problem is the stochastic local search (SLS). However, in this method, the initialization is assigned in a random manner, which impacts the effectiveness of SL…