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Extracting entities and relations is an essential task of information extraction. Triplets extracted from a sentence might overlap with each other. Previous methods either did not address the overlapping issues or solved overlapping issues…

Computation and Language · Computer Science 2023-04-07 Hao Zhang

Long document classification presents challenges in capturing both local and global dependencies due to their extensive content and complex structure. Existing methods often struggle with token limits and fail to adequately model…

Computation and Language · Computer Science 2024-10-07 Sudipta Singha Roy , Xindi Wang , Robert E. Mercer , Frank Rudzicz

We propose a tree-based algorithm for classification and regression problems in the context of functional data analysis, which allows to leverage representation learning and multiple splitting rules at the node level, reducing…

Machine Learning · Statistics 2020-11-03 Edoardo Belli , Simone Vantini

Document-level relation extraction aims to discover relations between entities across a whole document. How to build the dependency of entities from different sentences in a document remains to be a great challenge. Current approaches…

Computation and Language · Computer Science 2021-03-16 Jiaxin Pan , Min Peng , Yiyan Zhang

Tagging based methods are one of the mainstream methods in relational triple extraction. However, most of them suffer from the class imbalance issue greatly. Here we propose a novel tagging based model that addresses this issue from…

Computation and Language · Computer Science 2021-08-31 Feiliang Ren , Longhui Zhang , Shujuan Yin , Xiaofeng Zhao , Shilei Liu , Bochao Li

Extracting relational triples from text is a crucial task for constructing knowledge bases. Recent advancements in joint entity and relation extraction models have demonstrated remarkable F1 scores ($\ge 90\%$) in accurately extracting…

Computation and Language · Computer Science 2023-10-30 Pratik Saini , Samiran Pal , Tapas Nayak , Indrajit Bhattacharya

Document-level relation extraction aims to extract relations among entities within a document. Compared with its sentence-level counterpart, Document-level relation extraction requires inference over multiple sentences to extract complex…

Computation and Language · Computer Science 2022-08-05 Liang Zhang , Yidong Cheng

Objective: To develop a high-throughput biomedical relation extraction system that takes advantage of the large language models'(LLMs) reading comprehension ability and biomedical world knowledge in a scalable and evidential manner.…

Computation and Language · Computer Science 2024-03-27 Songchi Zhou , Sheng Yu

Owing to the exponential rise in the electronic medical records, information extraction in this domain is becoming an important area of research in recent years. Relation extraction between the medical concepts such as medical problem,…

Computation and Language · Computer Science 2019-03-26 Dhanachandra Ningthoujam , Shweta Yadav , Pushpak Bhattacharyya , Asif Ekbal

We introduce a biomedical information extraction (IE) pipeline that extracts biological relationships from text and demonstrate that its components, such as named entity recognition (NER) and relation extraction (RE), outperform…

Machine Learning · Computer Science 2020-11-13 Jupinder Parmar , William Koehler , Martin Bringmann , Katharina Sophia Volz , Berk Kapicioglu

The main focus of image mining in the proposed method is concerned with the classification of brain tumor in the CT scan brain images. The major steps involved in the system are: pre-processing, feature extraction, association rule mining…

Computer Vision and Pattern Recognition · Computer Science 2010-03-25 P. Rajendran , M. Madheswaran

Despite the importance of relation extraction in building and representing knowledge, less research is focused on generalizing to unseen relations types. We introduce the task setting of Zero-Shot Relation Triplet Extraction (ZeroRTE) to…

Computation and Language · Computer Science 2022-03-18 Yew Ken Chia , Lidong Bing , Soujanya Poria , Luo Si

Binary trait data record the presence or absence of distinguishing traits in individuals. We treat the problem of estimating ancestral trees with time depth from binary trait data. Simple analysis of such data is problematic. Each homology…

Methodology · Statistics 2009-08-31 Geoff K. Nicholls , Russell D. Gray

Multimodal relation extraction (MRE) is a crucial task in the fields of Knowledge Graph and Multimedia, playing a pivotal role in multimodal knowledge graph construction. However, existing methods are typically limited to extracting a…

Multimedia · Computer Science 2025-09-08 Xinkui Lin , Yongxiu Xu , Minghao Tang , Shilong Zhang , Hongbo Xu , Hao Xu , Yubin Wang

Multimodal relation extraction (MRE) is the task of identifying the semantic relationships between two entities based on the context of the sentence image pair. Existing retrieval-augmented approaches mainly focused on modeling the…

Computation and Language · Computer Science 2023-05-26 Xuming Hu , Zhijiang Guo , Zhiyang Teng , Irwin King , Philip S. Yu

Document-level relation extraction faces two overlooked challenges: long-tail problem and multi-label problem. Previous work focuses mainly on obtaining better contextual representations for entity pairs, hardly address the above…

Computation and Language · Computer Science 2022-12-21 Ridong Han , Tao Peng , Benyou Wang , Lu Liu , Xiang Wan

Given two possible treatments, there may exist subgroups who benefit greater from one treatment than the other. This problem is relevant to the field of marketing, where treatments may correspond to different ways of selling a product. It…

Machine Learning · Statistics 2016-05-16 Derek Feng , Xiaofei Wang

We introduce and investigate the approximability of the maximum binary tree problem (MBT) in directed and undirected graphs. The goal in MBT is to find a maximum-sized binary tree in a given graph. MBT is a natural variant of the…

Discrete Mathematics · Computer Science 2020-07-24 Karthekeyan Chandrasekaran , Elena Grigorescu , Gabriel Istrate , Shubhang Kulkarni , Young-San Lin , Minshen Zhu

Medical imaging is critical to the diagnosis and treatment of numerous medical problems, including many forms of cancer. Medical imaging reports distill the findings and observations of radiologists, creating an unstructured textual…

Computation and Language · Computer Science 2021-08-23 Kevin Lybarger , Aashka Damani , Martin Gunn , Ozlem Uzuner , Meliha Yetisgen

A longstanding goal in computational educational research is to develop explainable knowledge tracing (KT) models. Deep Knowledge Tracing (DKT), which leverages a Recurrent Neural Network (RNN) to predict student knowledge and performance…

Artificial Intelligence · Computer Science 2025-11-07 Kevin Hong , Kia Karbasi , Gregory Pottie