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Universal Multimodal Retrieval requires unified embedding models capable of interpreting diverse user intents, ranging from simple keywords to complex compositional instructions. While Multimodal Large Language Models (MLLMs) possess strong…

计算机视觉与模式识别 · 计算机科学 2026-03-05 Xiangzhao Hao , Shijie Wang , Tianyu Yang , Tianyue Wang , Haiyun Guo , Jinqiao Wang

Relation Extraction (RE) is a pivotal task in automatically extracting structured information from unstructured text. In this paper, we present a multi-faceted approach that integrates representative examples and through co-set expansion.…

计算与语言 · 计算机科学 2023-08-24 Yerong Li , Roxana Girju

Relation Extraction (RE) is one of the fundamental tasks in Information Extraction and Natural Language Processing. Dependency trees have been shown to be a very useful source of information for this task. The current deep learning models…

计算与语言 · 计算机科学 2019-07-09 Amir Pouran Ben Veyseh , Thien Huu Nguyen , Dejing Dou

Inductive knowledge graph completion requires models to comprehend the underlying semantics and logic patterns of relations. With the advance of pretrained language models, recent research have designed transformers for link prediction…

计算与语言 · 计算机科学 2022-10-27 Bohua Peng , Shihao Liang , Mobarakol Islam

For long-tailed recognition (LTR) tasks, high intra-class compactness and inter-class separability in both head and tail classes, as well as balanced separability among all the classifier vectors, are preferred. The existing LTR methods…

计算机视觉与模式识别 · 计算机科学 2025-11-19 Weijia Fan , Qiufu Li , Jiajun Wen , Xiaoyang Peng

Table filling based relational triple extraction methods are attracting growing research interests due to their promising performance and their abilities on extracting triples from complex sentences. However, this kind of methods are far…

计算与语言 · 计算机科学 2021-09-15 Feiliang Ren , Longhui Zhang , Shujuan Yin , Xiaofeng Zhao , Shilei Liu , Bochao Li , Yaduo Liu

Semi-supervised learning has been an important approach to address challenges in extracting entities and relations from limited data. However, current semi-supervised works handle the two tasks (i.e., Named Entity Recognition and Relation…

计算与语言 · 计算机科学 2023-05-26 Yandan Zheng , Anran Hao , Anh Tuan Luu

Relation Extraction (RE) has attracted increasing attention, but current RE evaluation is limited to in-domain evaluation setups. Little is known on how well a RE system fares in challenging, but realistic out-of-distribution evaluation…

计算与语言 · 计算机科学 2022-10-19 Elisa Bassignana , Barbara Plank

Aspect sentiment triplet extraction (ASTE), which aims to identify aspects from review sentences along with their corresponding opinion expressions and sentiments, is an emerging task in fine-grained opinion mining. Since ASTE consists of…

计算与语言 · 计算机科学 2021-03-16 Shaowei Chen , Yu Wang , Jie Liu , Yuelin Wang

Ranking consistently emerges as a primary focus in information retrieval research. Retrieval and ranking models serve as the foundation for numerous applications, including web search, open domain QA, enterprise domain QA, and text-based…

信息检索 · 计算机科学 2024-12-16 Hansa Meghwani

Current methods to extract relational triples directly make a prediction based on a possible entity pair in a raw sentence without depending on entity recognition. The task suffers from a serious semantic overlapping problem, in which…

计算与语言 · 计算机科学 2024-10-28 Xiaocheng Luo , Yanping Chen , Ruixue Tang , Caiwei Yang , Ruizhang Huang , Yongbin Qin

With an exponential explosive growth of various digital text information, it is challenging to efficiently obtain specific knowledge from massive unstructured text information. As one basic task for natural language processing (NLP),…

计算与语言 · 计算机科学 2020-03-27 Yan Xiao , Yaochu Jin , Ran Cheng , Kuangrong Hao

Heterogeneous graph neural networks (HGNNs) have been widely applied in heterogeneous information network tasks, while most HGNNs suffer from poor scalability or weak representation when they are applied to large-scale heterogeneous graphs.…

机器学习 · 计算机科学 2022-11-23 Ziming Wan , Deqing Wang , Xuehua Ming , Fuzhen Zhuang , Chenguang Du , Ting Jiang , Zhengyang Zhao

Abstract visual reasoning remains challenging as existing methods often prioritize either global context or local row-wise relations, failing to integrate both, and lack intermediate feature constraints, leading to incomplete rule capture…

人工智能 · 计算机科学 2026-04-21 Jiachen Zhang , Chengtai Li , Jianfeng Ren , Linlin Shen , Zheng Lu , Ruibin Bai

Named Entity Recognition task is one of the core tasks of information extraction. Word ambiguity and word abbreviation are important reasons for the low recognition rate of named entities. In this paper, we propose a novel named entity…

计算与语言 · 计算机科学 2022-08-16 Renjie Zhou , Qiang Hu , Jian Wan , Jilin Zhang , Qiang Liu , Tianxiang Hu , Jianjun Li

Ranking has always been one of the top concerns in information retrieval research. For decades, lexical matching signal has dominated the ad-hoc retrieval process, but it also has inherent defects, such as the vocabulary mismatch problem.…

信息检索 · 计算机科学 2020-10-21 Jingtao Zhan , Jiaxin Mao , Yiqun Liu , Min Zhang , Shaoping Ma

Current supervised relational triple extraction approaches require huge amounts of labeled data and thus suffer from poor performance in few-shot settings. However, people can grasp new knowledge by learning a few instances. To this end, we…

计算与语言 · 计算机科学 2023-01-26 Haiyang Yu , Ningyu Zhang , Shumin Deng , Hongbin Ye , Wei Zhang , Huajun Chen

We present ReCo, a contrastive learning framework designed at a regional level to assist learning in semantic segmentation. ReCo performs semi-supervised or supervised pixel-level contrastive learning on a sparse set of hard negative…

计算机视觉与模式识别 · 计算机科学 2022-02-01 Shikun Liu , Shuaifeng Zhi , Edward Johns , Andrew J. Davison

Continual relation extraction (CRE) aims to continuously train a model on data with new relations while avoiding forgetting old ones. Some previous work has proved that storing a few typical samples of old relations and replaying them when…

计算与语言 · 计算机科学 2022-05-24 Kang Zhao , Hua Xu , Jiangong Yang , Kai Gao

The goal of Knowledge Tracing (KT) is to estimate how well students have mastered a concept based on their historical learning of related exercises. The benefit of knowledge tracing is that students' learning plans can be better organised…

机器学习 · 计算机科学 2022-01-25 Xiangyu Song , Jianxin Li , Qi Lei , Wei Zhao , Yunliang Chen , Ajmal Mian