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Weigang Zhang

12 accepted papers

2026

PTNET: A PROPOSAL-CENTRIC TRANSFORMER NET- WORK FOR 3D OBJECT DETECTION

ICLR 2026poster

3D object detection from LiDAR point cloud data is important for autonomous driving systems. Recent two-stage 3D object detectors struggle to achieve satisfactory performance due to limitations in proposal quality, stemming from the degradation of geometric detail information in the generated propos…

Cited by 0SourceScholar
2026

Prompt Tuning for CLIP on the Pretrained Manifold

ICML 2026poster

Prompt tuning introduces learnable prompt vectors that adapt pretrained vision-language models to downstream tasks in a parameter-efficient manner. However, under limited supervision, prompt tuning alters pretrained representations and drives downstream features away from the pretrained manifold tow…

Cited by 0SourceScholar
2025

AdaPPA: Adaptive Position Pre-Fill Jailbreak Attack Approach Targeting LLMs

ICASSP 2025accepted

Jailbreak vulnerabilities in Large Language Models (LLMs) refer to methods that extract malicious content from the model by carefully crafting prompts or suffixes, which has garnered significant attention from the research community. However, traditional attack methods, which primarily focus on the…

Cited by 0SourceScholar
2025

Masked Temporal Interpolation Diffusion for Procedure Planning in Instructional Videos

ICLR 2025poster

In this paper, we address the challenge of procedure planning in instructional videos, aiming to generate coherent and task-aligned action sequences from start and end visual observations. Previous work has mainly relied on text-level supervision to bridge the gap between observed states and unobser…

Cited by 0SourcePDFScholar
2025

Procedure Knowledge Decoupled Distillation Strategy for Procedure Planning in Instructional Videos

AAAI 2025technical

Procedure planning in instructional videos, producing a structured and plannable action sequence facilitating the transition from the start to the goal states, has achieved significant progress. The dominant single-branch non-autoregressive planning paradigm guides action sequence generation through…

2024

Bias-Conflict Sample Synthesis and Adversarial Removal Debias Strategy for Temporal Sentence Grounding in Video

AAAI 2024technical

Temporal Sentence Grounding in Video (TSGV) is troubled by dataset bias issue, which is caused by the uneven temporal distribution of the target moments for samples with similar semantic components in input videos or query texts. Existing methods resort to utilizing prior knowledge about bias to art…

2021

Exploiting Sample Correlation for Crowd Counting With Multi-Expert Network

ICCV 2021poster

Crowd counting is a difficult task because of the diversity of scenes. Most of the existing crowd counting methods adopt complex structures with massive backbones to enhance the generalization ability. Unfortunately, the performance of existing methods on large-scale data sets is not satisfactory. I…

Cited by 38PDFScholar
2020

A Structured Latent Variable Recurrent Network With Stochastic Attention For Generating Weibo Comments

IJCAI 2020poster

Building intelligent agents to generate realistic Weibo comments is challenging. For such realistic Weibo comments, the key criterion is improving diversity while maintaining coherency. Considering that the variability of linguistic comments arises from multi-level sources, including both discourse-…

2020

Interpretable Visual Reasoning via Probabilistic Formulation under Natural Supervision

ECCV 2020poster

Visual reasoning is crucial for visual question answering (VQA). However, without labelled programs, implicit reasoning under natural supervision is still quite challenging and previous models are hard to interpret. In this paper, we rethink implicit reasoning process in VQA, and propose a new formu…

2018

Less is More: Picking Informative Frames for Video Captioning

ECCV 2018poster

In video captioning task, the best practice has been achieved by attention-based models which associate salient visual components with sentences in the video. However, existing study follows a common procedure which includes a frame-level appearance modeling and motion modeling on equal interval fra…

2018

The Unmanned Aerial Vehicle Benchmark: Object Detection and Tracking

ECCV 2018poster

With the advantage of high mobility, Unmanned Aerial Vehicles (UAVs) are used to fuel numerous important applications in computer vision, delivering more efficiency and convenience than surveillance cameras with fixed camera angle, scale and view. However, very limited UAV datasets are proposed, and…

Cited by 974SourcePDFScholar
2017

A Graph Regularized Deep Neural Network for Unsupervised Image Representation Learning

CVPR 2017poster

Deep Auto-Encoder (DAE) has shown its promising power in high-level representation learning. From the perspective of manifold learning, we propose a graph regularized deep neural network (GR-DNN) to endue traditional DAEs with the ability of retaining local geometric structure. A deep-structured reg…

Cited by 37PDFcodeScholar