Search Results for author: Chenyang Zhang

Found 12 papers, 3 papers with code

On the Robustness of Transformers against Context Hijacking for Linear Classification

no code implementations21 Feb 2025 Tianle Li, Chenyang Zhang, Xingwu Chen, Yuan Cao, Difan Zou

Then, we develop a general theoretical analysis on the robustness of the linear transformers, which is formulated as a function of the model depth, training context lengths, and number of hijacking context tokens.

In-Context Learning

Adaptive Caching for Faster Video Generation with Diffusion Transformers

no code implementations4 Nov 2024 Kumara Kahatapitiya, Haozhe Liu, Sen He, Ding Liu, Menglin Jia, Chenyang Zhang, Michael S. Ryoo, Tian Xie

Generating temporally-consistent high-fidelity videos can be computationally expensive, especially over longer temporal spans.

Denoising Video Generation

AdaptGCD: Multi-Expert Adapter Tuning for Generalized Category Discovery

no code implementations29 Oct 2024 Yuxun Qu, Yongqiang Tang, Chenyang Zhang, Wensheng Zhang

Different from the traditional semi-supervised learning paradigm that is constrained by the close-world assumption, Generalized Category Discovery (GCD) presumes that the unlabeled dataset contains new categories not appearing in the labeled set, and aims to not only classify old categories but also discover new categories in the unlabeled data.

General Knowledge

Correct after Answer: Enhancing Multi-Span Question Answering with Post-Processing Method

1 code implementation22 Oct 2024 Jiayi Lin, Chenyang Zhang, Haibo Tong, Dongyu Zhang, Qingqing Hong, Bingxuan Hou, Junli Wang

Multi-Span Question Answering (MSQA) requires models to extract one or multiple answer spans from a given context to answer a question.

Question Answering

Probing Causality Manipulation of Large Language Models

no code implementations26 Aug 2024 Chenyang Zhang, Haibo Tong, Bin Zhang, Dongyu Zhang

Large language models (LLMs) have shown various ability on natural language processing, including problems about causality.

In-Context Learning RAG +2

The Implicit Bias of Adam on Separable Data

no code implementations15 Jun 2024 Chenyang Zhang, Difan Zou, Yuan Cao

Adam has become one of the most favored optimizers in deep learning problems.

RNG: Reducing Multi-level Noise and Multi-grained Semantic Gap for Joint Multimodal Aspect-Sentiment Analysis

no code implementations20 May 2024 Yaxin Liu, Yan Zhou, Ziming Li, Jinchuan Zhang, Yu Shang, Chenyang Zhang, Songlin Hu

As an important multimodal sentiment analysis task, Joint Multimodal Aspect-Sentiment Analysis (JMASA), aiming to jointly extract aspect terms and their associated sentiment polarities from the given text-image pairs, has gained increasing concerns.

Contrastive Learning Extract Aspect +1

Solving General Noisy Inverse Problem via Posterior Sampling: A Policy Gradient Viewpoint

no code implementations15 Mar 2024 Haoyue Tang, Tian Xie, Aosong Feng, Hanyu Wang, Chenyang Zhang, Yang Bai

Solving image inverse problems (e. g., super-resolution and inpainting) requires generating a high fidelity image that matches the given input (the low-resolution image or the masked image).

Image Restoration Super-Resolution

STW-MD: A Novel Spatio-Temporal Weighting and Multi-Step Decision Tree Method for Considering Spatial Heterogeneity in Brain Gene Expression Data

1 code implementation18 Oct 2023 Shanjun Mao, Xiao Huang, Runjiu Chen, Chenyang Zhang, Yizhu Diao, Zongjin Li, Qingzhe Wang, Shan Tang, Shuixia Guo

Motivation: Gene expression during brain development or abnormal development is a biological process that is highly dynamic in spatio and temporal.

Active Learning with Effective Scoring Functions for Semi-Supervised Temporal Action Localization

no code implementations31 Aug 2022 Ding Li, Xuebing Yang, Yongqiang Tang, Chenyang Zhang, Wensheng Zhang

And the other introduces a new metric based on mutual information between adjacent action proposals and evaluates the informativeness of video samples, named Temporal Context Inconsistency (TCI).

Active Learning Informativeness +1

The iMet Collection 2019 Challenge Dataset

1 code implementation3 Jun 2019 Chenyang Zhang, Christine Kaeser-Chen, Grace Vesom, Jennie Choi, Maria Kessler, Serge Belongie

Existing computer vision technologies in artwork recognition focus mainly on instance retrieval or coarse-grained attribute classification.

Attribute Fine-Grained Visual Recognition +2

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