activity
20182026
most citedHierarchical Topic Mining via Joint Spherical Tree and Text Embedding

59 citations · 206 across the 26 of their papers we have counts for

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Showing cs.CLShow all

21 papers · 1 filter

cs.CL2026

Grounding Agent Memory in Contextual Intent

Ruozhen Yang, Yucheng Jiang, Yueqi Jiang +3

Deploying large language models in long-horizon, goal-oriented interactions remains challenging because similar entities and facts recur under different latent goals and constraint…

cs.CL2025

TaxoAdapt: Aligning LLM-Based Multidimensional Taxonomy Construction to Evolving Research Corpora

Priyanka Kargupta, Nan Zhang, Yunyi Zhang +3

The rapid evolution of scientific fields introduces challenges in organizing and retrieving scientific literature. While expert-curated taxonomies have traditionally addressed this…

cs.CL2025

RAS: Retrieval-And-Structuring for Knowledge-Intensive LLM Generation

Pengcheng Jiang, Lang Cao, Ruike Zhu +5

Large language models (LLMs) have achieved impressive performance on knowledge-intensive tasks, yet they often struggle with multi-step reasoning due to the unstructured nature of…

cs.CL2024

Synergizing Unsupervised Episode Detection with LLMs for Large-Scale News Events

Priyanka Kargupta, Yunyi Zhang, Yizhu Jiao +2

State-of-the-art automatic event detection struggles with interpretability and adaptability to evolving large-scale key events -- unlike episodic structures, which excel in these a…

cs.CL2024★ 7 cited

TELEClass: Taxonomy Enrichment and LLM-Enhanced Hierarchical Text Classification with Minimal Supervision

Yunyi Zhang, Ruozhen Yang, Xueqiang Xu +4

Hierarchical text classification aims to categorize each document into a set of classes in a label taxonomy, which is a fundamental web text mining task with broad applications suc…

cs.CL2024

Seed-Guided Fine-Grained Entity Typing in Science and Engineering Domains

Yu Zhang, Yunyi Zhang, Yanzhen Shen +5

Accurately typing entity mentions from text segments is a fundamental task for various natural language processing applications. Many previous approaches rely on massive human-anno…

cs.CL2024★ 1 cited

A Unified Taxonomy-Guided Instruction Tuning Framework for Entity Set Expansion and Taxonomy Expansion

Yanzhen Shen, Yu Zhang, Yunyi Zhang +1

Entity set expansion, taxonomy expansion, and seed-guided taxonomy construction are three representative tasks that can be applied to automatically populate an existing taxonomy wi…

cs.CL2023★ 1 cited

Ontology Enrichment for Effective Fine-grained Entity Typing

Siru Ouyang, Jiaxin Huang, Pranav Pillai +3

Fine-grained entity typing (FET) is the task of identifying specific entity types at a fine-grained level for entity mentions based on their contextual information. Conventional me…

cs.CL2023

Weakly Supervised Multi-Label Classification of Full-Text Scientific Papers

Yu Zhang, Bowen Jin, Xiusi Chen +4

Instead of relying on human-annotated training samples to build a classifier, weakly supervised scientific paper classification aims to classify papers only using category descript…

cs.CL2023★ 1 cited

PIEClass: Weakly-Supervised Text Classification with Prompting and Noise-Robust Iterative Ensemble Training

Yunyi Zhang, Minhao Jiang, Yu Meng +2

Weakly-supervised text classification trains a classifier using the label name of each target class as the only supervision, which largely reduces human annotation efforts. Most ex…

cs.CL2023★ 1 cited

Effective Seed-Guided Topic Discovery by Integrating Multiple Types of Contexts

Yu Zhang, Yunyi Zhang, Martin Michalski +3

Instead of mining coherent topics from a given text corpus in a completely unsupervised manner, seed-guided topic discovery methods leverage user-provided seed words to extract dis…

cs.CL2022

Entity Set Co-Expansion in StackOverflow

Yu Zhang, Yunyi Zhang, Yucheng Jiang +5

Given a few seed entities of a certain type (e.g., Software or Programming Language), entity set expansion aims to discover an extensive set of entities that share the same type as…

cs.CL2022★ 14 cited

Unsupervised Key Event Detection from Massive Text Corpora

Yunyi Zhang, Fang Guo, Jiaming Shen +1

Automated event detection from news corpora is a crucial task towards mining fast-evolving structured knowledge. As real-world events have different granularities, from the top-lev…

cs.CL2022★ 50 cited

Topic Discovery via Latent Space Clustering of Pretrained Language Model Representations

Yu Meng, Yunyi Zhang, Jiaxin Huang +2

Topic models have been the prominent tools for automatic topic discovery from text corpora. Despite their effectiveness, topic models suffer from several limitations including the…

cs.CL2021★ 1 cited

Distantly-Supervised Named Entity Recognition with Noise-Robust Learning and Language Model Augmented Self-Training

Yu Meng, Yunyi Zhang, Jiaxin Huang +4

We study the problem of training named entity recognition (NER) models using only distantly-labeled data, which can be automatically obtained by matching entity mentions in the raw…

cs.CL2021

Corpus-based Open-Domain Event Type Induction

Jiaming Shen, Yunyi Zhang, Heng Ji +1

Traditional event extraction methods require predefined event types and their corresponding annotations to learn event extractors. These prerequisites are often hard to be satisfie…

cs.CL2020★ 10 cited

Text Classification Using Label Names Only: A Language Model Self-Training Approach

Yu Meng, Yunyi Zhang, Jiaxin Huang +4

Current text classification methods typically require a good number of human-labeled documents as training data, which can be costly and difficult to obtain in real applications. H…

cs.CL2020★ 27 cited

CoRel: Seed-Guided Topical Taxonomy Construction by Concept Learning and Relation Transferring

Jiaxin Huang, Yiqing Xie, Yu Meng +2

Taxonomy is not only a fundamental form of knowledge representation, but also crucial to vast knowledge-rich applications, such as question answering and web search. Most existing…

cs.CL2020★ 59 cited

Hierarchical Topic Mining via Joint Spherical Tree and Text Embedding

Yu Meng, Yunyi Zhang, Jiaxin Huang +3

Mining a set of meaningful topics organized into a hierarchy is intuitively appealing since topic correlations are ubiquitous in massive text corpora. To account for potential hier…

cs.CL2020★ 2 cited

Empower Entity Set Expansion via Language Model Probing

Yunyi Zhang, Jiaming Shen, Jingbo Shang +1

Entity set expansion, aiming at expanding a small seed entity set with new entities belonging to the same semantic class, is a critical task that benefits many downstream NLP and I…

cs.CL2020★ 23 cited

Guiding Corpus-based Set Expansion by Auxiliary Sets Generation and Co-Expansion

Jiaxin Huang, Yiqing Xie, Yu Meng +3

Given a small set of seed entities (e.g., ``USA'', ``Russia''), corpus-based set expansion is to induce an extensive set of entities which share the same semantic class (Country in…