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Zhangheng Li

6 accepted papers

2025

Ferret-UI 2: Mastering Universal User Interface Understanding Across Platforms

ICLR 2025poster

Building a generalist model for user interface (UI) understanding is challenging due to various foundational issues, such as platform diversity, resolution variation, and data limitation. In this paper, we introduce Ferret-UI 2, a multimodal large language model (MLLM) designed for universal UI unde…

Cited by 0SourcePDFScholar
2025

Sparse Transfer Learning Accelerates and Enhances Certified Robustness: A Comprehensive Study

AAAI 2025technical

Certified robustness is a critical measure for assessing the reliability of machine learning systems. Traditionally, the computational burden associated with certifying the robustness of machine learning models has posed a substantial challenge, particularly with the continuous expansion of model si…

Cited by 0SourcePDFScholar
2024

DP-OPT: Make Large Language Model Your Privacy-Preserving Prompt Engineer

ICLR 2024spotlight

Large Language Models (LLMs) have emerged as dominant tools for various tasks, particularly when tailored for a specific target by prompt tuning. Nevertheless, concerns surrounding data privacy present obstacles due to the tuned prompts' dependency on sensitive private information. A practical solut…

2024

Decoding Compressed Trust: Scrutinizing the Trustworthiness of Efficient LLMs Under Compression

ICML 2024poster

Compressing high-capability Large Language Models (LLMs) has emerged as a favored strategy for resource-efficient inferences. While state-of-the-art (SoTA) compression methods boast impressive advancements in preserving benign task performance, the potential risks of compression in terms of safety a…

2024

Sparse Cocktail: Every Sparse Pattern Every Sparse Ratio All At Once

ICML 2024poster

Sparse Neural Networks (SNNs) have received voluminous attention for mitigating the explosion in computational costs and memory footprints of modern deep neural networks. Despite their popularity, most state-of-the-art training approaches seek to find a single high-quality sparse subnetwork with a p…

Cited by 1SourcePDFScholar
2019

AttPool: Towards Hierarchical Feature Representation in Graph Convolutional Networks via Attention Mechanism

ICCV 2019poster

Graph convolutional networks (GCNs) are potentially short of the ability to learn hierarchical representation for graph embedding, which holds them back in the graph classification task. Here, we propose AttPool, which is a novel graph pooling module based on attention mechanism, to remedy the probl…

Cited by 87PDFcodeScholar