Search Results for author: Mingyu Derek Ma

Found 16 papers, 7 papers with code

Improving Event Definition Following For Zero-Shot Event Detection

no code implementations5 Mar 2024 Zefan Cai, Po-Nien Kung, Ashima Suvarna, Mingyu Derek Ma, Hritik Bansal, Baobao Chang, P. Jeffrey Brantingham, Wei Wang, Nanyun Peng

We hypothesize that a diverse set of event types and definitions are the key for models to learn to follow event definitions while existing event extraction datasets focus on annotating many high-quality examples for a few event types.

Event Detection Event Extraction

Instructional Fingerprinting of Large Language Models

1 code implementation21 Jan 2024 Jiashu Xu, Fei Wang, Mingyu Derek Ma, Pang Wei Koh, Chaowei Xiao, Muhao Chen

The exorbitant cost of training Large language models (LLMs) from scratch makes it essential to fingerprint the models to protect intellectual property via ownership authentication and to ensure downstream users and developers comply with their license terms (e. g. restricting commercial use).

Decoding Susceptibility: Modeling Misbelief to Misinformation Through a Computational Approach

no code implementations16 Nov 2023 Yanchen Liu, Mingyu Derek Ma, Wenna Qin, Azure Zhou, Jiaao Chen, Weiyan Shi, Wei Wang, Diyi Yang

Using COVID-19 as a testbed domain, our experiments demonstrate a significant alignment between the susceptibility scores estimated by our computational modeling and human judgments, confirming the effectiveness of this latent modeling approach.

Misinformation

Mitigating Bias for Question Answering Models by Tracking Bias Influence

no code implementations13 Oct 2023 Mingyu Derek Ma, Jiun-Yu Kao, Arpit Gupta, Yu-Hsiang Lin, Wenbo Zhao, Tagyoung Chung, Wei Wang, Kai-Wei Chang, Nanyun Peng

Based on the intuition that a model would lean to be more biased if it learns from a biased example, we measure the bias level of a query instance by observing its influence on another instance.

Multiple-choice Multi-Task Learning +1

MIDDAG: Where Does Our News Go? Investigating Information Diffusion via Community-Level Information Pathways

no code implementations4 Oct 2023 Mingyu Derek Ma, Alexander K. Taylor, Nuan Wen, Yanchen Liu, Po-Nien Kung, Wenna Qin, Shicheng Wen, Azure Zhou, Diyi Yang, Xuezhe Ma, Nanyun Peng, Wei Wang

We present MIDDAG, an intuitive, interactive system that visualizes the information propagation paths on social media triggered by COVID-19-related news articles accompanied by comprehensive insights, including user/community susceptibility level, as well as events and popular opinions raised by the crowd while propagating the information.

Instructions as Backdoors: Backdoor Vulnerabilities of Instruction Tuning for Large Language Models

no code implementations24 May 2023 Jiashu Xu, Mingyu Derek Ma, Fei Wang, Chaowei Xiao, Muhao Chen

We investigate security concerns of the emergent instruction tuning paradigm, that models are trained on crowdsourced datasets with task instructions to achieve superior performance.

Continual Learning Data Poisoning

Can NLI Provide Proper Indirect Supervision for Low-resource Biomedical Relation Extraction?

1 code implementation21 Dec 2022 Jiashu Xu, Mingyu Derek Ma, Muhao Chen

Two key obstacles in biomedical relation extraction (RE) are the scarcity of annotations and the prevalence of instances without explicitly pre-defined labels due to low annotation coverage.

Multi-class Classification Natural Language Inference +2

Multi-hop Evidence Retrieval for Cross-document Relation Extraction

1 code implementation21 Dec 2022 Keming Lu, I-Hung Hsu, Wenxuan Zhou, Mingyu Derek Ma, Muhao Chen

Relation Extraction (RE) has been extended to cross-document scenarios because many relations are not simply described in a single document.

Relation Relation Extraction +1

Bending the Future: Autoregressive Modeling of Temporal Knowledge Graphs in Curvature-Variable Hyperbolic Spaces

1 code implementation12 Sep 2022 Jihoon Sohn, Mingyu Derek Ma, Muhao Chen

The chronological hierarchies between knowledge graphs at different timestamps are represented by embedding the knowledge graphs as vectors in a common hyperbolic space.

Knowledge Graphs

Summarization as Indirect Supervision for Relation Extraction

1 code implementation19 May 2022 Keming Lu, I-Hung Hsu, Wenxuan Zhou, Mingyu Derek Ma, Muhao Chen

Considering that summarization tasks aim at acquiring concise expressions of synoptical information from the longer context, these tasks naturally align with the objective of RE, i. e., extracting a kind of synoptical information that describes the relation of entity mentions.

Relation Relation Extraction +1

HyperExpan: Taxonomy Expansion with Hyperbolic Representation Learning

no code implementations Findings (EMNLP) 2021 Mingyu Derek Ma, Muhao Chen, Te-Lin Wu, Nanyun Peng

Taxonomies are valuable resources for many applications, but the limited coverage due to the expensive manual curation process hinders their general applicability.

Representation Learning Taxonomy Expansion

EventPlus: A Temporal Event Understanding Pipeline

1 code implementation NAACL 2021 Mingyu Derek Ma, Jiao Sun, Mu Yang, Kung-Hsiang Huang, Nuan Wen, Shikhar Singh, Rujun Han, Nanyun Peng

We present EventPlus, a temporal event understanding pipeline that integrates various state-of-the-art event understanding components including event trigger and type detection, event argument detection, event duration and temporal relation extraction.

Common Sense Reasoning Event Extraction +1

Implicit Discourse Relation Identification for Open-domain Dialogues

1 code implementation ACL 2019 Mingyu Derek Ma, Kevin K. Bowden, Jiaqi Wu, Wen Cui, Marilyn Walker

Discourse relation identification has been an active area of research for many years, and the challenge of identifying implicit relations remains largely an unsolved task, especially in the context of an open-domain dialogue system.

Implicit Discourse Relation Classification Implicit Relations +2

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