activity
20192026
most citedAutoML to Date and Beyond: Challenges and Opportunities

6 citations · 34 across the 20 of their papers we have counts for

collaborators

27 papers

cs.CL2026

Competence-Based Evaluation of Logical Reasoning in Large Language Models

Jize Jiang, Chengxiang Zhai

Recent advances in large language models (LLMs) have brought impressive performance across diverse tasks; however, shortcomings remain in logical reasoning, including inconsistenci…

cs.LG2026

Resisting Harmful Instructions through Training-Free Weight Editing

Ali Ebrahimpour-Boroojeny, Xiaocong Yang, Samuel Schapiro +4

Instruction-following language models can comply with requests that conflict with intended behaviors and safety alignment. We introduce a training-free weight-editing approach for…

cs.SE2026

Skip the Compressor: Coding Agents Fix More Issues When They Pick Whole Files

Xiaocong Yang, Rishit Chatterjee, Himanshu Udupi +2

A coding agent works on repositories that can be far larger than its context window can hold. Prompt compressors and retrievers offer solutions to this problem, but patching an iss…

cs.LG2026

Sparse Autoencoders Are a Shared Coordinate System for Symbolic Matching

Xiaocong Yang, Xuanyu Meng, Yuji Zhang +2

Large language models (LLMs) hold broad knowledge in one set of weights, but lack interpretability and trustworthy reasoning, especially in high-stakes use cases. A neuro-symbolic…

cs.CL2026

DAGFormer: Global Topology Prediction for Transformer Cross-Layer Connections

Xiaocong Yang, Yuren Hao, ChengXiang Zhai

We propose DAGFormer, a Transformer language model whose cross-layer connections are planned by a jointly trained topology predictor. Beyond the residual connections in a standard…

cs.LG2026

Language Models for Page-Level Layout Decisions in E-commerce Search

Varun Joshi, Eva C. Song, ChengXiang Zhai

E-commerce search pages are critical touchpoints for millions of online shoppers. While traditional search engines return a ranked list of results, modern E-commerce search pages i…

cs.CL2023

C-PMI: Conditional Pointwise Mutual Information for Turn-level Dialogue Evaluation

Liliang Ren, Mankeerat Sidhu, Qi Zeng +3

Existing reference-free turn-level evaluation metrics for chatbots inadequately capture the interaction between the user and the system. Consequently, they often correlate poorly w…

cs.LG2023★ 2 cited

Sparse Modular Activation for Efficient Sequence Modeling

Liliang Ren, Yang Liu, Shuohang Wang +3

Recent hybrid models combining Linear State Space Models (SSMs) with self-attention mechanisms have demonstrated impressive results across a range of sequence modeling tasks. Howev…

cs.CL2023

Quick Dense Retrievers Consume KALE: Post Training Kullback Leibler Alignment of Embeddings for Asymmetrical dual encoders

Daniel Campos, Alessandro Magnani, ChengXiang Zhai

In this paper, we consider the problem of improving the inference latency of language model-based dense retrieval systems by introducing structural compression and model size asymm…

cs.CL2023

To Asymmetry and Beyond: Structured Pruning of Sequence to Sequence Models for Improved Inference Efficiency

Daniel Campos, ChengXiang Zhai

Sequence-to-sequence language models can be used to produce abstractive summaries which are coherent, relevant, and concise. Still, model sizes can make deployment in latency-sensi…

cs.CL2023

oBERTa: Improving Sparse Transfer Learning via improved initialization, distillation, and pruning regimes

Daniel Campos, Alexandre Marques, Mark Kurtz +1

In this paper, we introduce the range of oBERTa language models, an easy-to-use set of language models which allows Natural Language Processing (NLP) practitioners to obtain betwee…

cs.CL2023★ 2 cited

Competence-Based Analysis of Language Models

Adam Davies, Jize Jiang, ChengXiang Zhai

Despite the recent successes of large, pretrained neural language models (LLMs), comparatively little is known about the representations of linguistic structure they learn during p…

cs.AI2023★ 1 cited

Learning by Applying: A General Framework for Mathematical Reasoning via Enhancing Explicit Knowledge Learning

Jiayu Liu, Zhenya Huang, Chengxiang Zhai +1

Mathematical reasoning is one of the crucial abilities of general artificial intelligence, which requires machines to master mathematical logic and knowledge from solving problems.…

cs.CL2022

When to Use What: An In-Depth Comparative Empirical Analysis of OpenIE Systems for Downstream Applications

Kevin Pei, Ishan Jindal, Kevin Chen-Chuan Chang +2

Open Information Extraction (OpenIE) has been used in the pipelines of various NLP tasks. Unfortunately, there is no clear consensus on which models to use in which tasks. Muddying…

cs.CL2022

Language Model Pre-Training with Sparse Latent Typing

Liliang Ren, Zixuan Zhang, Han Wang +3

Modern large-scale Pre-trained Language Models (PLMs) have achieved tremendous success on a wide range of downstream tasks. However, most of the LM pre-training objectives only foc…

cs.CL2022★ 5 cited

Analogy Generation by Prompting Large Language Models: A Case Study of InstructGPT

Bhavya Bhavya, Jinjun Xiong, Chengxiang Zhai

We propose a novel application of prompting Pre-trained Language Models (PLMs) to generate analogies and study how to design effective prompts for two task settings: generating a s…

cs.CL2022★ 2 cited

CONCRETE: Improving Cross-lingual Fact-checking with Cross-lingual Retrieval

Kung-Hsiang Huang, ChengXiang Zhai, Heng Ji

Fact-checking has gained increasing attention due to the widespread of falsified information. Most fact-checking approaches focus on claims made in English only due to the data sca…

cs.CL2022★ 1 cited

Incorporating Task-specific Concept Knowledge into Script Learning

Chenkai Sun, Tie Xu, ChengXiang Zhai +1

In this paper, we present Tetris, a new task of Goal-Oriented Script Completion. Unlike previous work, it considers a more realistic and general setting, where the input includes n…

cs.CL2022★ 4 cited

Sparse*BERT: Sparse Models Generalize To New tasks and Domains

Daniel Campos, Alexandre Marques, Tuan Nguyen +2

Large Language Models have become the core architecture upon which most modern natural language processing (NLP) systems build. These models can consistently deliver impressive acc…

cs.CV2021★ 1 cited

DeepQAMVS: Query-Aware Hierarchical Pointer Networks for Multi-Video Summarization

Safa Messaoud, Ismini Lourentzou, Assma Boughoula +4

The recent growth of web video sharing platforms has increased the demand for systems that can efficiently browse, retrieve and summarize video content. Query-aware multi-video sum…

cs.CR2020

Towards Dark Jargon Interpretation in Underground Forums

Dominic Seyler, Wei Liu, XiaoFeng Wang +1

Dark jargons are benign-looking words that have hidden, sinister meanings and are used by participants of underground forums for illicit behavior. For example, the dark term "rat"…

cs.CL2020★ 3 cited

Multi-task Learning for Multilingual Neural Machine Translation

Yiren Wang, ChengXiang Zhai, Hany Hassan Awadalla

While monolingual data has been shown to be useful in improving bilingual neural machine translation (NMT), effectively and efficiently leveraging monolingual data for Multilingual…

cs.LG2020★ 6 cited

AutoML to Date and Beyond: Challenges and Opportunities

Shubhra Kanti Karmaker Santu, Md. Mahadi Hassan, Micah J. Smith +3

As big data becomes ubiquitous across domains, and more and more stakeholders aspire to make the most of their data, demand for machine learning tools has spurred researchers to ex…

cs.IR2020★ 1 cited

Towards a Soft Faceted Browsing Scheme for Information Access

Yinan Zhang, Parikshit Sondhi, Anjan Goswami +1

Faceted browsing is a commonly supported feature of user interfaces for access to information. Existing interfaces generally treat facet values selected by a user as hard filters a…