Search Results for author: Yibo Wang

Found 25 papers, 7 papers with code

Learning Off-policy with Model-based Intrinsic Motivation For Active Online Exploration

no code implementations31 Mar 2024 Yibo Wang, Jiang Zhao

Recent advancements in deep reinforcement learning (RL) have demonstrated notable progress in sample efficiency, spanning both model-based and model-free paradigms.

Continuous Control Efficient Exploration +1

Uncertainty in Graph Neural Networks: A Survey

no code implementations11 Mar 2024 Fangxin Wang, Yuqing Liu, Kay Liu, Yibo Wang, Sourav Medya, Philip S. Yu

Therefore, identifying, quantifying, and utilizing uncertainty are essential to enhance the performance of the model for the downstream tasks as well as the reliability of the GNN predictions.

Graph Learning

Disclosure and Mitigation of Gender Bias in LLMs

1 code implementation17 Feb 2024 Xiangjue Dong, Yibo Wang, Philip S. Yu, James Caverlee

Our experiments demonstrate that all tested LLMs exhibit explicit and/or implicit gender bias, even when gender stereotypes are not present in the inputs.

kNN-ICL: Compositional Task-Oriented Parsing Generalization with Nearest Neighbor In-Context Learning

no code implementations17 Dec 2023 Wenting Zhao, Ye Liu, Yao Wan, Yibo Wang, Qingyang Wu, Zhongfen Deng, Jiangshu Du, Shuaiqi Liu, Yunlong Xu, Philip S. Yu

Task-Oriented Parsing (TOP) enables conversational assistants to interpret user commands expressed in natural language, transforming them into structured outputs that combine elements of both natural language and intent/slot tags.

In-Context Learning Prompt Engineering +1

DALA: A Distribution-Aware LoRA-Based Adversarial Attack against Language Models

no code implementations14 Nov 2023 Yibo Wang, Xiangjue Dong, James Caverlee, Philip S. Yu

DALA considers distribution shifts of adversarial examples to improve the attack's effectiveness under detection methods.

Adversarial Attack

JPAVE: A Generation and Classification-based Model for Joint Product Attribute Prediction and Value Extraction

1 code implementation7 Nov 2023 Zhongfen Deng, Hao Peng, Tao Zhang, Shuaiqi Liu, Wenting Zhao, Yibo Wang, Philip S. Yu

Furthermore, the copy mechanism in value generator and the value attention module in value classifier help our model address the data discrepancy issue by only focusing on the relevant part of input text and ignoring other information which causes the discrepancy issue such as sentence structure in the text.

Attribute Attribute Value Extraction +4

Aperture Diffraction for Compact Snapshot Spectral Imaging

1 code implementation ICCV 2023 Tao Lv, Hao Ye, Quan Yuan, Zhan Shi, Yibo Wang, Shuming Wang, Xun Cao

We demonstrate a compact, cost-effective snapshot spectral imaging system named Aperture Diffraction Imaging Spectrometer (ADIS), which consists only of an imaging lens with an ultra-thin orthogonal aperture mask and a mosaic filter sensor, requiring no additional physical footprint compared to common RGB cameras.

Named Entity Recognition via Machine Reading Comprehension: A Multi-Task Learning Approach

1 code implementation20 Sep 2023 Yibo Wang, Wenting Zhao, Yao Wan, Zhongfen Deng, Philip S. Yu

In this paper, we propose to incorporate the label dependencies among entity types into a multi-task learning framework for better MRC-based NER.

Machine Reading Comprehension Multi-Task Learning +3

Self-supervised Scene Text Segmentation with Object-centric Layered Representations Augmented by Text Regions

no code implementations25 Aug 2023 Yibo Wang, Yunhu Ye, Yuanpeng Mao, Yanwei Yu, Yuanping Song

Text segmentation tasks have a very wide range of application values, such as image editing, style transfer, watermark removal, etc. However, existing public datasets are of poor quality of pixel-level labels that have been shown to be notoriously costly to acquire, both in terms of money and time.

Segmentation Style Transfer +1

Click-Conversion Multi-Task Model with Position Bias Mitigation for Sponsored Search in eCommerce

no code implementations29 Jul 2023 Yibo Wang, Yanbing Xue, Bo Liu, Musen Wen, Wenting Zhao, Stephen Guo, Philip S. Yu

Position bias, the phenomenon whereby users tend to focus on higher-ranked items of the search result list regardless of the actual relevance to queries, is prevailing in many ranking systems.

Position

GeoDiffusion: Text-Prompted Geometric Control for Object Detection Data Generation

no code implementations7 Jun 2023 Kai Chen, Enze Xie, Zhe Chen, Yibo Wang, Lanqing Hong, Zhenguo Li, Dit-yan Yeung

Diffusion models have attracted significant attention due to the remarkable ability to create content and generate data for tasks like image classification.

Image Classification Layout-to-Image Generation +2

Non-stationary Projection-free Online Learning with Dynamic and Adaptive Regret Guarantees

no code implementations19 May 2023 Yibo Wang, Wenhao Yang, Wei Jiang, Shiyin Lu, Bing Wang, Haihong Tang, Yuanyu Wan, Lijun Zhang

Specifically, we first provide a novel dynamic regret analysis for an existing projection-free method named $\text{BOGD}_\text{IP}$, and establish an $\mathcal{O}(T^{3/4}(1+P_T))$ dynamic regret bound, where $P_T$ denotes the path-length of the comparator sequence.

Continuous Prompt Tuning Based Textual Entailment Model for E-commerce Entity Typing

1 code implementation4 Nov 2022 Yibo Wang, Congying Xia, Guan Wang, Philip Yu

In order to handle new entities in product titles and address the special language styles problem of product titles in e-commerce domain, we propose our textual entailment model with continuous prompt tuning based hypotheses and fusion embeddings for e-commerce entity typing.

Entity Typing Natural Language Inference

Multi-block-Single-probe Variance Reduced Estimator for Coupled Compositional Optimization

no code implementations18 Jul 2022 Wei Jiang, Gang Li, Yibo Wang, Lijun Zhang, Tianbao Yang

The key issue is to track and estimate a sequence of $\mathbf g(\mathbf{w})=(g_1(\mathbf{w}), \ldots, g_m(\mathbf{w}))$ across iterations, where $\mathbf g(\mathbf{w})$ has $m$ blocks and it is only allowed to probe $\mathcal{O}(1)$ blocks to attain their stochastic values and Jacobians.

Explore Spatio-temporal Aggregation for Insubstantial Object Detection: Benchmark Dataset and Baseline

1 code implementation CVPR 2022 Kailai Zhou, Yibo Wang, Tao Lv, Yunqian Li, Linsen Chen, Qiu Shen, Xun Cao

We endeavor on a rarely explored task named Insubstantial Object Detection (IOD), which aims to localize the object with following characteristics: (1) amorphous shape with indistinct boundary; (2) similarity to surroundings; (3) absence in color.

object-detection Object Detection

Projection-free Online Learning with Arbitrary Delays

no code implementations11 Apr 2022 Yuanyu Wan, Yibo Wang, Chang Yao, Wei-Wei Tu, Lijun Zhang

Projection-free online learning, which eschews the projection operation via less expensive computations such as linear optimization (LO), has received much interest recently due to its efficiency in handling high-dimensional problems with complex constraints.

Optimal Algorithms for Stochastic Multi-Level Compositional Optimization

no code implementations15 Feb 2022 Wei Jiang, Bokun Wang, Yibo Wang, Lijun Zhang, Tianbao Yang

To address these limitations, we propose a Stochastic Multi-level Variance Reduction method (SMVR), which achieves the optimal sample complexity of $\mathcal{O}\left(1 / \epsilon^{3}\right)$ to find an $\epsilon$-stationary point for non-convex objectives.

Robust End-to-End Offline Chinese Handwriting Text Page Spotter with Text Kernel

1 code implementation4 Jul 2021 Zhihao Wang, Yanwei Yu, Yibo Wang, Haixu Long, Fazheng Wang

Offline Chinese handwriting text recognition is a long-standing research topic in the field of pattern recognition.

Language Modelling Text Detection

Tunable ferroelectricity in hBN intercalated twisted double-layer graphene

no code implementations24 Feb 2021 Yibo Wang, Siqi Jiang, Jingkuan Xiao, Xiaofan Cai, Di Zhang, Ping Wang, Guodong Ma, Yaqing Han, Jiabei Huang, Kenji Watanabe, Takashi Taniguchi, Alexander S. Mayorov, Geliang Yu

Van der Waals (vdW) assembly of two-dimensional materials has been long recognized as a powerful tool to create unique systems with properties that cannot be found in natural compounds.

Mesoscale and Nanoscale Physics Materials Science

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