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Recently, prompt-tuning has attracted growing interests in event argument extraction (EAE). However, the existing prompt-tuning methods have not achieved satisfactory performance due to the lack of consideration of entity information. In…

计算与语言 · 计算机科学 2022-10-31 Lu Dai , Bang Wang , Wei Xiang , Yijun Mo

This paper addresses a crucial challenge in retrieval-augmented generation-based relation extractors; the end-to-end training is not applicable to conventional retrieval-augmented generation due to the non-differentiable nature of instance…

计算与语言 · 计算机科学 2024-10-11 Kohei Makino , Makoto Miwa , Yutaka Sasaki

Recent techniques in Question Answering (QA) have gained remarkable performance improvement with some QA models even surpassed human performance. However, the ability of these models in truly understanding the language still remains dubious…

计算与语言 · 计算机科学 2022-03-01 Weiwen Xu , Bowei Zou , Wai Lam , Ai Ti Aw

Emotional Support Conversation (ESC) aims to alleviate individual emotional distress by generating empathetic responses. However, existing methods face challenges in effectively supporting deep contextual understanding. To address this…

计算与语言 · 计算机科学 2026-04-03 Yanxin Luo , Xiaoyu Zhang , Jing Li , Yan Gao , Donghong Han

Entity resolution (ER) refers to the problem of matching records in one or more relations that refer to the same real-world entity. While supervised machine learning (ML) approaches achieve the state-of-the-art results, they require a large…

数据库 · 计算机科学 2020-04-07 Renzhi Wu , Sanya Chaba , Saurabh Sawlani , Xu Chu , Saravanan Thirumuruganathan

This paper aims to enhance the few-shot relation classification especially for sentences that jointly describe multiple relations. Due to the fact that some relations usually keep high co-occurrence in the same context, previous few-shot…

计算与语言 · 计算机科学 2020-10-22 Yingyao Wang , Junwei Bao , Guangyi Liu , Youzheng Wu , Xiaodong He , Bowen Zhou , Tiejun Zhao

We address the problem of calibrating prediction confidence for output entities of interest in natural language processing (NLP) applications. It is important that NLP applications such as named entity recognition and question answering…

计算与语言 · 计算机科学 2020-05-07 Abhyuday Jagannatha , Hong Yu

We introduce the task of entity-centric query refinement. Given an input query whose answer is a (potentially large) collection of entities, the task output is a small set of query refinements meant to assist the user in efficient domain…

计算与语言 · 计算机科学 2022-09-19 David Wadden , Nikita Gupta , Kenton Lee , Kristina Toutanova

Despite the recent progress, little is known about the features captured by state-of-the-art neural relation extraction (RE) models. Common methods encode the source sentence, conditioned on the entity mentions, before classifying the…

计算与语言 · 计算机科学 2020-04-20 Christoph Alt , Aleksandra Gabryszak , Leonhard Hennig

Topic models have been prevalent for decades with various applications. However, existing topic models commonly suffer from the notorious topic collapsing: discovered topics semantically collapse towards each other, leading to highly…

计算与语言 · 计算机科学 2023-06-08 Xiaobao Wu , Xinshuai Dong , Thong Nguyen , Anh Tuan Luu

In this work, we aim at equipping pre-trained language models with structured knowledge. We present two self-supervised tasks learning over raw text with the guidance from knowledge graphs. Building upon entity-level masked language models,…

计算与语言 · 计算机科学 2020-04-30 Tao Shen , Yi Mao , Pengcheng He , Guodong Long , Adam Trischler , Weizhu Chen

Entity representations are useful in natural language tasks involving entities. In this paper, we propose new pretrained contextualized representations of words and entities based on the bidirectional transformer. The proposed model treats…

计算与语言 · 计算机科学 2020-10-05 Ikuya Yamada , Akari Asai , Hiroyuki Shindo , Hideaki Takeda , Yuji Matsumoto

In this paper, we explore the potential of Vision-Language Models (VLMs), specifically CLIP, in predicting visual object relationships, which involves interpreting visual features from images into language-based relations. Current…

计算机视觉与模式识别 · 计算机科学 2023-07-20 Rakshith Subramanyam , T. S. Jayram , Rushil Anirudh , Jayaraman J. Thiagarajan

We present EASE, a novel method for learning sentence embeddings via contrastive learning between sentences and their related entities. The advantage of using entity supervision is twofold: (1) entities have been shown to be a strong…

计算与语言 · 计算机科学 2022-05-10 Sosuke Nishikawa , Ryokan Ri , Ikuya Yamada , Yoshimasa Tsuruoka , Isao Echizen

A conventional approach to entity linking is to first find mentions in a given document and then infer their underlying entities in the knowledge base. A well-known limitation of this approach is that it requires finding mentions without…

计算与语言 · 计算机科学 2022-03-09 Wenzheng Zhang , Wenyue Hua , Karl Stratos

The first stage of every knowledge base question answering approach is to link entities in the input question. We investigate entity linking in the context of a question answering task and present a jointly optimized neural architecture for…

计算与语言 · 计算机科学 2018-04-24 Daniil Sorokin , Iryna Gurevych

We present a joint model for entity-level relation extraction from documents. In contrast to other approaches - which focus on local intra-sentence mention pairs and thus require annotations on mention level - our model operates on entity…

计算与语言 · 计算机科学 2021-12-06 Markus Eberts , Adrian Ulges

Recent entity and relation extraction works focus on investigating how to obtain a better span representation from the pre-trained encoder. However, a major limitation of existing works is that they ignore the interrelation between spans…

计算与语言 · 计算机科学 2022-04-22 Deming Ye , Yankai Lin , Peng Li , Maosong Sun

The pre-ranking stage in industrial recommendation systems faces a fundamental conflict between efficiency and effectiveness. While powerful models like Target Attention (TA) excel at capturing complex feature interactions in the ranking…

信息检索 · 计算机科学 2026-05-26 Yutong Li , Yu Zhu , Yichen Qiao , Ziyu Guan , Lv Shao , Tong Liu , Bo Zheng

Recently, word embedding algorithms have been applied to map the entities of recommender systems, such as users and items, to new feature spaces using textual element-context relations among them. Unlike many other domains, this approach…

信息检索 · 计算机科学 2018-11-06 Arash Khoeini , Bita Shams , Saman Haratizadeh