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Lu Sun

13 accepted papers

2026

BLM-Guard: Explainable Multimodal Ad Moderation with Chain-of-Thought and Policy-Aligned Rewards

AAAI 2026technical

Short-video platforms now host vast multimodal ads whose deceptive visuals, speech and subtitles demand finer-grained, policy-driven moderation than community safety filters. We present BLM-Guard, a content-audit framework for commercial ads that fuses Chain-of-Thought reasoning with rule-based poli

Cited by 0SourcePDFScholar
2026

SafeSci: Safety Evaluation of Large Language Models in Science Domains and Beyond

ICML 2026poster

The success of large language models (LLMs) in scientific domains has heightened safety concerns, prompting numerous benchmarks to evaluate their scientific safety. Existing benchmarks often suffer from limited risk coverage and a reliance on subjective evaluation. To address thess problems, we intr…

Cited by 0SourceScholar
2025

AdDriftBench: A Benchmark for Detecting Data Drift and Label Drift in Short Video Advertising

EMNLP 2025

With the commercialization of short video platforms (SVPs), the demand for compliance auditing of advertising content has grown rapidly. The rise of large vision-language models (VLMs) offers new opportunities for automating ad content moderation. However, short video advertising scenarios present u

Cited by 0SourcePDFScholar
2025

Do Vision-Language Models Have Internal World Models? Towards an Atomic Evaluation

ACL 2025finding

Internal world models (WMs) enable agents to understand the world’s state and predict transitions, serving as the basis for advanced deliberative reasoning.Recent large Vision-Language Models (VLMs), such as GPT-4o and Gemini, exhibit potential as general-purpose WMs. While the latest studies have e…

Cited by 0SourcePDFScholar
2024

Accelerating Non-Maximum Suppression: A Graph Theory Perspective

NeurIPS 2024poster

Non-maximum suppression (NMS) is an indispensable post-processing step in object detection. With the continuous optimization of network models, NMS has become the ``last mile'' to enhance the efficiency of object detection. This paper systematically analyzes NMS from a graph theory perspective for t…

2024

Learning Low-Rank Tensor Cores with Probabilistic ℓ0-Regularized Rank Selection for Model Compression

IJCAI 2024poster

Compressing deep neural networks is of great importance for real-world applications on resource-constrained devices. Tensor decomposition is one promising answer that retains the functionality and most of the expressive power of the original deep models by replacing the weights with their decomposed…

2023

Generalized Discriminative Deep Non-Negative Matrix Factorization Based on Latent Feature and Basis Learning

IJCAI 2023poster

As a powerful tool for data representation, deep NMF has attracted much attention in recent years. Current deep NMF builds the multi-layer structure by decomposing either basis matrix or feature matrix into multiple factors, and probably complicates the learning process when data is insufficient or…

2022

Minimally-Supervised Relation Induction from Pre-trained Language Model

NAACL 2022findings

Relation Induction is a very practical task in Natural Language Processing (NLP) area. In practical application scenarios, people want to induce more entity pairs having the same relation from only a few seed entity pairs. Thus, instead of the laborious supervised setting, in this paper, we focus on…

2021

Heterogeneous Graph Neural Networks for Concept Prerequisite Relation Learning in Educational Data

NAACL 2021long

Prerequisite relations among concepts are crucial for educational applications, such as curriculum planning and intelligent tutoring. In this paper, we propose a novel concept prerequisite relation learning approach, named CPRL, which combines both concept representation learned from a heterogeneous…