Search Results for author: Zhen Fan

Found 8 papers, 1 papers with code

Incorporating Multimodal Information in Open-Domain Web Keyphrase Extraction

no code implementations EMNLP 2020 Yansen Wang, Zhen Fan, Carolyn Rose

Open-domain Keyphrase extraction (KPE) on the Web is a fundamental yet complex NLP task with a wide range of practical applications within the field of Information Retrieval.

Information Retrieval Keyphrase Extraction +1

HMD-Poser: On-Device Real-time Human Motion Tracking from Scalable Sparse Observations

no code implementations6 Mar 2024 Peng Dai, Yang Zhang, Tao Liu, Zhen Fan, Tianyuan Du, Zhuo Su, Xiaozheng Zheng, Zeming Li

It is especially challenging to achieve real-time human motion tracking on a standalone VR Head-Mounted Display (HMD) such as Meta Quest and PICO.

PICO

Building Retrieval Systems for the ClueWeb22-B Corpus

no code implementations6 Feb 2024 Harshit Mehrotra, Jamie Callan, Zhen Fan

The ClueWeb22 dataset containing nearly 10 billion documents was released in 2022 to support academic and industry research.

Retrieval

Combating Adversarial Attacks with Multi-Agent Debate

1 code implementation11 Jan 2024 Steffi Chern, Zhen Fan, Andy Liu

While state-of-the-art language models have achieved impressive results, they remain susceptible to inference-time adversarial attacks, such as adversarial prompts generated by red teams arXiv:2209. 07858.

Language Modelling

A Self-enhancement Approach for Domain-specific Chatbot Training via Knowledge Mining and Digest

no code implementations17 Nov 2023 Ruohong Zhang, Luyu Gao, Chen Zheng, Zhen Fan, Guokun Lai, Zheng Zhang, Fangzhou Ai, Yiming Yang, Hongxia Yang

This paper introduces a novel approach to enhance LLMs by effectively extracting the relevant knowledge from domain-specific textual sources, and the adaptive training of a chatbot with domain-specific inquiries.

Chatbot Text Generation

Localize, Group, and Select: Boosting Text-VQA by Scene Text Modeling

no code implementations20 Aug 2021 Xiaopeng Lu, Zhen Fan, Yansen Wang, Jean Oh, Carolyn P. Rose

LOGOS leverages two grounding tasks to better localize the key information of the image, utilizes scene text clustering to group individual OCR tokens, and learns to select the best answer from different sources of OCR (Optical Character Recognition) texts.

Data Ablation Optical Character Recognition +4

Complementing Lexical Retrieval with Semantic Residual Embedding

no code implementations29 Apr 2020 Luyu Gao, Zhuyun Dai, Tongfei Chen, Zhen Fan, Benjamin Van Durme, Jamie Callan

This paper presents CLEAR, a retrieval model that seeks to complement classical lexical exact-match models such as BM25 with semantic matching signals from a neural embedding matching model.

Information Retrieval Retrieval

Strain engineering of epitaxial oxide heterostructures beyond substrate limitations

no code implementations3 May 2019 Xiong Deng, Chao Chen, Deyang Chen, Xiangbin Cai, Xiaozhe Yin, Chao Xu, Fei Sun, Caiwen Li, Yan Li, Han Xu, Mao Ye, Guo Tian, Zhen Fan, Zhipeng Hou, Minghui Qin, Yu Chen, Zhenlin Luo, Xubing Lu, Guofu Zhou, Lang Chen, Ning Wang, Ye Zhu, Xingsen Gao, Jun-Ming Liu

The limitation of commercially available single-crystal substrates and the lack of continuous strain tunability preclude the ability to take full advantage of strain engineering for further exploring novel properties and exhaustively studying fundamental physics in complex oxides.

Materials Science

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