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Many real world systems need to operate on heterogeneous information networks that consist of numerous interacting components of different types. Examples include systems that perform data analysis on biological information networks; social…

Artificial Intelligence · Computer Science 2017-07-26 Parisa Kordjamshidi , Sameer Singh , Daniel Khashabi , Christos Christodoulopoulos , Mark Summons , Saurabh Sinha , Dan Roth

Spatial and temporal stream model has gained great success in video action recognition. Most existing works pay more attention to designing effective features fusion methods, which train the two-stream model in a separate way. However, it's…

Computer Vision and Pattern Recognition · Computer Science 2019-08-28 Jingran Zhang , Fumin Shen , Xing Xu , Heng Tao Shen

Joint entity and relation extraction framework constructs a unified model to perform entity recognition and relation extraction simultaneously, which can exploit the dependency between the two tasks to mitigate the error propagation problem…

Computation and Language · Computer Science 2021-04-19 Yongliang Shen , Xinyin Ma , Yechun Tang , Weiming Lu

We consider a multitask learning problem, in which several predictors are learned jointly. Prior research has shown that learning the relations between tasks, and between the input features, together with the predictor, can lead to better…

Machine Learning · Computer Science 2019-07-11 Han Zhao , Otilia Stretcu , Alex Smola , Geoff Gordon

Document-level relation extraction aims to extract relations among multiple entity pairs from a document. Previously proposed graph-based or transformer-based models utilize the entities independently, regardless of global information among…

Computation and Language · Computer Science 2023-01-27 Ningyu Zhang , Xiang Chen , Xin Xie , Shumin Deng , Chuanqi Tan , Mosha Chen , Fei Huang , Luo Si , Huajun Chen

Entity relation extraction consists of two sub-tasks: entity recognition and relation extraction. Existing methods either tackle these two tasks separately or unify them with word-by-word interactions. In this paper, we propose HIORE, a new…

Computation and Language · Computer Science 2023-05-09 Yijun Wang , Changzhi Sun , Yuanbin Wu , Lei Li , Junchi Yan , Hao Zhou

Extracting entities and relations from unstructured text has attracted increasing attention in recent years but remains challenging, due to the intrinsic difficulty in identifying overlapping relations with shared entities. Prior works show…

Computation and Language · Computer Science 2020-10-27 Yucheng Wang , Bowen Yu , Yueyang Zhang , Tingwen Liu , Hongsong Zhu , Limin Sun

Multitask learning (MTL) aims to learn multiple tasks simultaneously through the interdependence between different tasks. The way to measure the relatedness between tasks is always a popular issue. There are mainly two ways to measure…

Machine Learning · Computer Science 2019-04-04 Ya Li , Xinmei Tian , Tongliang Liu , Dacheng Tao

We study the benefit of sharing representations among tasks to enable the effective use of deep neural networks in Multi-Task Reinforcement Learning. We leverage the assumption that learning from different tasks, sharing common properties,…

Machine Learning · Computer Science 2024-01-19 Carlo D'Eramo , Davide Tateo , Andrea Bonarini , Marcello Restelli , Jan Peters

Named entity recognition (NER) systems that perform well require task-related and manually annotated datasets. However, they are expensive to develop, and are thus limited in size. As there already exists a large number of NER datasets that…

Computation and Language · Computer Science 2019-04-23 Nargiza Nosirova , Mingbin Xu , Hui Jiang

Multivariate functions emerge naturally in a wide variety of data-driven models. Popular choices are expressions in the form of basis expansions or neural networks. While highly effective, the resulting functions tend to be hard to…

Machine Learning · Statistics 2022-06-15 Jan Decuyper , Koen Tiels , Siep Weiland , Mark C. Runacres , Johan Schoukens

The extraction of a scene graph with objects as nodes and mutual relationships as edges is the basis for a deep understanding of image content. Despite recent advances, such as message passing and joint classification, the detection of…

Computer Vision and Pattern Recognition · Computer Science 2021-07-22 Rajat Koner , Suprosanna Shit , Volker Tresp

Negative medical findings are prevalent in clinical reports, yet discriminating them from positive findings remains a challenging task for information extraction. Most of the existing systems treat this task as a pipeline of two separate…

Computation and Language · Computer Science 2020-01-23 Parminder Bhatia , Busra Celikkaya , Mohammed Khalilia

This paper proposes to make a first step towards compatible and hence reusable network components. Rather than training networks for different tasks independently, we adapt the training process to produce network components that are…

Machine Learning · Computer Science 2020-12-17 Michael Gygli , Jasper Uijlings , Vittorio Ferrari

Many complicated real-world tasks can be broken down into smaller, more manageable parts, and planning with prior knowledge extracted from these simplified pieces is crucial for humans to make accurate decisions. However, replicating this…

Artificial Intelligence · Computer Science 2024-05-21 Jingqing Ruan , Kaishen Wang , Qingyang Zhang , Dengpeng Xing , Bo Xu

Distantly supervised relation extraction has been widely used to find novel relational facts from plain text. To predict the relation between a pair of two target entities, existing methods solely rely on those direct sentences containing…

Computation and Language · Computer Science 2017-09-15 Wenyuan Zeng , Yankai Lin , Zhiyuan Liu , Maosong Sun

Detecting manipulated images and videos is an important topic in digital media forensics. Most detection methods use binary classification to determine the probability of a query being manipulated. Another important topic is locating…

Computer Vision and Pattern Recognition · Computer Science 2019-06-18 Huy H. Nguyen , Fuming Fang , Junichi Yamagishi , Isao Echizen

Although neural machine translation with the encoder-decoder framework has achieved great success recently, it still suffers drawbacks of forgetting distant information, which is an inherent disadvantage of recurrent neural network…

Computation and Language · Computer Science 2018-09-12 Wen Zhang , Jiawei Hu , Yang Feng , Qun Liu

Tagging based relational triple extraction methods are attracting growing research attention recently. However, most of these methods take a unidirectional extraction framework that first extracts all subjects and then extracts objects and…

Computation and Language · Computer Science 2022-01-06 Feiliang Ren , Longhui Zhang , Xiaofeng Zhao , Shujuan Yin , Shilei Liu , Bochao Li

Large pre-trained models have transformed machine learning, yet adapting these models effectively to exhibit precise, concept-specific behaviors remains a significant challenge. Task vectors, defined as the difference between fine-tuned and…

Machine Learning · Computer Science 2025-12-30 Hamed Damirchi , Ehsan Abbasnejad , Zhen Zhang , Javen Shi