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相关论文: Weakly-supervised Relation Extraction by Pattern-e…

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Joint extraction of entities and relations aims to detect entity pairs along with their relations using a single model. Prior work typically solves this task in the extract-then-classify or unified labeling manner. However, these methods…

计算与语言 · 计算机科学 2020-02-20 Bowen Yu , Zhenyu Zhang , Xiaobo Shu , Yubin Wang , Tingwen Liu , Bin Wang , Sujian Li

Recent work in vision-and-language pretraining has investigated supervised signals from object detection data to learn better, fine-grained multimodal representations. In this work, we take a step further and explore how we can tap into…

计算与语言 · 计算机科学 2023-10-20 Emanuele Bugliarello , Aida Nematzadeh , Lisa Anne Hendricks

Distant supervision for relation extraction enables one to effectively acquire structured relations out of very large text corpora with less human efforts. Nevertheless, most of the prior-art models for such tasks assume that the given text…

计算与语言 · 计算机科学 2019-09-13 Junfan Chen , Richong Zhang , Yongyi Mao , Hongyu Guo , Jie Xu

Compositional, structured models are appealing because they explicitly decompose problems and provide interpretable intermediate outputs that give confidence that the model is not simply latching onto data artifacts. Learning these models…

计算与语言 · 计算机科学 2021-04-06 Nitish Gupta , Sameer Singh , Matt Gardner , Dan Roth

Continual relation extraction is an important task that focuses on extracting new facts incrementally from unstructured text. Given the sequential arrival order of the relations, this task is prone to two serious challenges, namely…

计算与语言 · 计算机科学 2021-01-11 Tongtong Wu , Xuekai Li , Yuan-Fang Li , Reza Haffari , Guilin Qi , Yujin Zhu , Guoqiang Xu

Learning disentangled representations that correspond to factors of variation in real-world data is critical to interpretable and human-controllable machine learning. Recently, concerns about the viability of learning disentangled…

机器学习 · 计算机科学 2020-04-14 Rui Shu , Yining Chen , Abhishek Kumar , Stefano Ermon , Ben Poole

Relation classification (RC) task is one of fundamental tasks of information extraction, aiming to detect the relation information between entity pairs in unstructured natural language text and generate structured data in the form of…

计算与语言 · 计算机科学 2021-01-12 Yan Xiao , Yaochu Jin , Kuangrong Hao

In many supervised learning tasks, the entities to be labeled are related to each other in complex ways and their labels are not independent. For example, in hypertext classification, the labels of linked pages are highly correlated. A…

机器学习 · 计算机科学 2013-01-07 Ben Taskar , Pieter Abbeel , Daphne Koller

In knowledge graph construction, a challenging issue is how to extract complex (e.g., overlapping) entities and relationships from a small amount of unstructured historical data. The traditional pipeline methods are to divide the extraction…

计算与语言 · 计算机科学 2024-05-24 Jian Cheng , Tian Zhang , Shuang Zhang , Huimin Ren , Guo Yu , Xiliang Zhang , Shangce Gao , Lianbo Ma

In this study, a spectral graph-theoretic grouping strategy for weakly supervised classification is introduced, where a limited number of labelled samples and a larger set of unlabelled samples are used to construct a larger annotated…

机器学习 · 计算机科学 2015-08-04 Tameem Adel , Alexander Wong , Daniel Stashuk

Weakly supervised nuclei segmentation is a critical problem for pathological image analysis and greatly benefits the community due to the significant reduction of labeling cost. Adopting point annotations, previous methods mostly rely on…

图像与视频处理 · 电气工程与系统科学 2022-02-14 Weizhen Liu , Qian He , Xuming He

In practical scenario, relation extraction needs to first identify entity pairs that have relation and then assign a correct relation class. However, the number of non-relation entity pairs in context (negative instances) usually far…

计算与语言 · 计算机科学 2019-06-24 Wei Ye , Bo Li , Rui Xie , Zhonghao Sheng , Long Chen , Shikun Zhang

Deep energy-based models are powerful, but pose challenges for learning and inference (Belanger and McCallum, 2016). Tu and Gimpel (2018) developed an efficient framework for energy-based models by training "inference networks" to…

计算与语言 · 计算机科学 2020-10-13 Lifu Tu , Richard Yuanzhe Pang , Kevin Gimpel

Subsequence-based time series classification algorithms provide accurate and interpretable models, but training these models is extremely computation intensive. The asymptotic time complexity of subsequence-based algorithms remains a…

机器学习 · 计算机科学 2021-02-18 Atif Raza , Stefan Kramer

Relation Extraction is an important sub-task of Information Extraction which has the potential of employing deep learning (DL) models with the creation of large datasets using distant supervision. In this review, we compare the…

计算与语言 · 计算机科学 2017-05-11 Shantanu Kumar

Graphical models have been widely applied in solving distributed inference problems in sensor networks. In this paper, the problem of coordinating a network of sensors to train a unique ensemble estimator under communication constraints is…

分布式、并行与集群计算 · 计算机科学 2016-11-17 Haipeng Zheng , Sanjeev R. Kulkarni , H. Vincent Poor

In the low-data regime, it is difficult to train good supervised models from scratch. Instead practitioners turn to pre-trained models, leveraging transfer learning. Ensembling is an empirically and theoretically appealing way to construct…

机器学习 · 计算机科学 2020-10-20 Basil Mustafa , Carlos Riquelme , Joan Puigcerver , André Susano Pinto , Daniel Keysers , Neil Houlsby

Syntactic features play an essential role in identifying relationship in a sentence. Previous neural network models often suffer from irrelevant information introduced when subjects and objects are in a long distance. In this paper, we…

计算与语言 · 计算机科学 2015-06-26 Kun Xu , Yansong Feng , Songfang Huang , Dongyan Zhao

Compositional embedding models build a representation (or embedding) for a linguistic structure based on its component word embeddings. We propose a Feature-rich Compositional Embedding Model (FCM) for relation extraction that is…

计算与语言 · 计算机科学 2015-09-16 Matthew R. Gormley , Mo Yu , Mark Dredze

We consider the problem of embedding character-entity relationships from the reduced semantic space of narratives, proposing and evaluating the assumption that these relationships hold under a reflection operation. We analyze this…

计算与语言 · 计算机科学 2022-12-22 Mikolaj Figurski