activity
20142023
most citedApproximate Nearest Neighbor Negative Contrastive Learning for Dense Text Retrieval

230 citations · 559 across the 22 of their papers we have counts for

collaborators

23 papers

cs.CV2023★ 2 cited

ArK: Augmented Reality with Knowledge Interactive Emergent Ability

Qiuyuan Huang, Jae Sung Park, Abhinav Gupta +8

Despite the growing adoption of mixed reality and interactive AI agents, it remains challenging for these systems to generate high quality 2D/3D scenes in unseen environments. The…

cs.LG2023★ 14 cited

Understanding Causality with Large Language Models: Feasibility and Opportunities

Cheng Zhang, Stefan Bauer, Paul Bennett +8

We assess the ability of large language models (LLMs) to answer causal questions by analyzing their strengths and weaknesses against three types of causal question. We believe that…

cs.CL2023★ 2 cited

Augmenting Zero-Shot Dense Retrievers with Plug-in Mixture-of-Memories

Suyu Ge, Chenyan Xiong, Corby Rosset +3

In this paper we improve the zero-shot generalization ability of language models via Mixture-Of-Memory Augmentation (MoMA), a mechanism that retrieves augmentation documents from m…

cs.HC2022

Imagining Future Digital Assistants at Work: A Study of Task Management Needs

Yonchanok Khaokaew, Indigo Holcombe-James, Mohammad Saiedur Rahaman +11

Digital Assistants (DAs) can support workers in the workplace and beyond. However, target user needs are not fully understood, and the functions that workers would ideally want a D…

cs.LG2022★ 19 cited

METRO: Efficient Denoising Pretraining of Large Scale Autoencoding Language Models with Model Generated Signals

Payal Bajaj, Chenyan Xiong, Guolin Ke +7

We present an efficient method of pretraining large-scale autoencoding language models using training signals generated by an auxiliary model. Originated in ELECTRA, this training…

cs.CL2022★ 2 cited

Pretraining Text Encoders with Adversarial Mixture of Training Signal Generators

Yu Meng, Chenyan Xiong, Payal Bajaj +4

We present a new framework AMOS that pretrains text encoders with an Adversarial learning curriculum via a Mixture Of Signals from multiple auxiliary generators. Following ELECTRA-…

cs.IR2022★ 5 cited

Neural Approaches to Conversational Information Retrieval

Jianfeng Gao, Chenyan Xiong, Paul Bennett +1

A conversational information retrieval (CIR) system is an information retrieval (IR) system with a conversational interface which allows users to interact with the system to seek i…

cs.CL2021★ 4 cited

SummaC: Re-Visiting NLI-based Models for Inconsistency Detection in Summarization

Philippe Laban, Tobias Schnabel, Paul N. Bennett +1

In the summarization domain, a key requirement for summaries is to be factually consistent with the input document. Previous work has found that natural language inference (NLI) mo…

cs.IR2021

Zero-Shot Dense Retrieval with Momentum Adversarial Domain Invariant Representations

Ji Xin, Chenyan Xiong, Ashwin Srinivasan +3

Dense retrieval (DR) methods conduct text retrieval by first encoding texts in the embedding space and then matching them by nearest neighbor search. This requires strong locality…

cs.CL2021

Keep it Simple: Unsupervised Simplification of Multi-Paragraph Text

Philippe Laban, Tobias Schnabel, Paul Bennett +1

This work presents Keep it Simple (KiS), a new approach to unsupervised text simplification which learns to balance a reward across three properties: fluency, salience and simplici…

cs.IR2021★ 12 cited

Domain-Specific Pretraining for Vertical Search: Case Study on Biomedical Literature

Yu Wang, Jinchao Li, Tristan Naumann +12

Information overload is a prevalent challenge in many high-value domains. A prominent case in point is the explosion of the biomedical literature on COVID-19, which swelled to hund…

cs.LG2021

Less is More: Pre-train a Strong Text Encoder for Dense Retrieval Using a Weak Decoder

Shuqi Lu, Di He, Chenyan Xiong +6

Dense retrieval requires high-quality text sequence embeddings to support effective search in the representation space. Autoencoder-based language models are appealing in dense ret…

cs.CL2021★ 128 cited

COCO-LM: Correcting and Contrasting Text Sequences for Language Model Pretraining

Yu Meng, Chenyan Xiong, Payal Bajaj +4

We present a self-supervised learning framework, COCO-LM, that pretrains Language Models by COrrecting and COntrasting corrupted text sequences. Following ELECTRA-style pretraining…

cs.IR2020★ 1 cited

Few-Shot Text Ranking with Meta Adapted Synthetic Weak Supervision

Si Sun, Yingzhuo Qian, Zhenghao Liu +5

The effectiveness of Neural Information Retrieval (Neu-IR) often depends on a large scale of in-domain relevance training signals, which are not always available in real-world rank…

cs.IR2020★ 8 cited

CMT in TREC-COVID Round 2: Mitigating the Generalization Gaps from Web to Special Domain Search

Chenyan Xiong, Zhenghao Liu, Si Sun +7

Neural rankers based on deep pretrained language models (LMs) have been shown to improve many information retrieval benchmarks. However, these methods are affected by their the cor…

cs.IR2020★ 230 cited

Approximate Nearest Neighbor Negative Contrastive Learning for Dense Text Retrieval

Lee Xiong, Chenyan Xiong, Ye Li +5

Conducting text retrieval in a dense learned representation space has many intriguing advantages over sparse retrieval. Yet the effectiveness of dense retrieval (DR) often requires…

cs.CL2020★ 44 cited

Knowledge-Aware Language Model Pretraining

Corby Rosset, Chenyan Xiong, Minh Phan +3

How much knowledge do pretrained language models hold? Recent research observed that pretrained transformers are adept at modeling semantics but it is unclear to what degree they g…

cs.IR2020★ 7 cited

Few-Shot Generative Conversational Query Rewriting

Shi Yu, Jiahua Liu, Jingqin Yang +4

Conversational query rewriting aims to reformulate a concise conversational query to a fully specified, context-independent query that can be effectively handled by existing inform…

cs.IR2020

Analyzing and Learning from User Interactions for Search Clarification

Hamed Zamani, Bhaskar Mitra, Everest Chen +5

Asking clarifying questions in response to search queries has been recognized as a useful technique for revealing the underlying intent of the query. Clarification has applications…

cs.IR2019★ 36 cited

Generic Intent Representation in Web Search

Hongfei Zhang, Xia Song, Chenyan Xiong +4

This paper presents GEneric iNtent Encoder (GEN Encoder) which learns a distributed representation space for user intent in search. Leveraging large scale user clicks from Bing sea…

cs.HC2018★ 14 cited

Improving Recommender Systems Beyond the Algorithm

Tobias Schnabel, Paul N. Bennett, Thorsten Joachims

Recommender systems rely heavily on the predictive accuracy of the learning algorithm. Most work on improving accuracy has focused on the learning algorithm itself. We argue that t…

cs.HC2015

Using Shortlists to Support Decision Making and Improve Recommender System Performance

Tobias Schnabel, Paul N. Bennett, Susan T. Dumais +1

In this paper, we study shortlists as an interface component for recommender systems with the dual goal of supporting the user's decision process, as well as improving implicit fee…

cs.IR2014★ 31 cited

Events and Controversies: Influences of a Shocking News Event on Information Seeking

Danai Koutra, Paul Bennett, Eric Horvitz

It has been suggested that online search and retrieval contributes to the intellectual isolation of users within their preexisting ideologies, where people's prior views are streng…