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Knowledge graphs enable a wide variety of applications, including question answering and information retrieval. Despite the great effort invested in their creation and maintenance, even the largest (e.g., Yago, DBPedia or Wikidata) remain…

Machine Learning · Statistics 2017-10-30 Michael Schlichtkrull , Thomas N. Kipf , Peter Bloem , Rianne van den Berg , Ivan Titov , Max Welling

Information extraction from semi-structured webpages provides valuable long-tailed facts for augmenting knowledge graph. Relational Web tables are a critical component containing additional entities and attributes of rich and diverse…

Information Retrieval · Computer Science 2021-02-19 Daheng Wang , Prashant Shiralkar , Colin Lockard , Binxuan Huang , Xin Luna Dong , Meng Jiang

Deep neural networks have shown recent promise in many language-related tasks such as the modeling of conversations. We extend RNN-based sequence to sequence models to capture the long range discourse across many turns of conversation. We…

Computation and Language · Computer Science 2016-07-18 John M. Pierre , Mark Butler , Jacob Portnoff , Luis Aguilar

Graphs can represent relational information among entities and graph structures are widely used in many intelligent tasks such as search, recommendation, and question answering. However, most of the graph-structured data in practice suffers…

Information Retrieval · Computer Science 2021-12-30 Hanxiong Chen , Yunqi Li , Shaoyun Shi , Shuchang Liu , He Zhu , Yongfeng Zhang

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

How to incorporate external knowledge into a neural dialogue model is critically important for dialogue systems to behave like real humans. To handle this problem, memory networks are usually a great choice and a promising way. However,…

Computation and Language · Computer Science 2019-09-26 Zehao Lin , Xinjing Huang , Feng Ji , Haiqing Chen , Ying Zhang

Emotion Recognition in Conversations (ERC) has considerable prospects for developing empathetic machines. For multimodal ERC, it is vital to understand context and fuse modality information in conversations. Recent graph-based fusion…

Computation and Language · Computer Science 2022-03-07 Dou Hu , Xiaolong Hou , Lingwei Wei , Lianxin Jiang , Yang Mo

The dominant approaches for named entity recognition (NER) mostly adopt complex recurrent neural networks (RNN), e.g., long-short-term-memory (LSTM). However, RNNs are limited by their recurrent nature in terms of computational efficiency.…

Computation and Language · Computer Science 2019-07-22 Hui Chen , Zijia Lin , Guiguang Ding , Jianguang Lou , Yusen Zhang , Borje Karlsson

Graph Convolutional Networks (GCNs) have received increasing attention in the machine learning community for effectively leveraging both the content features of nodes and the linkage patterns across graphs in various applications. As…

Machine Learning · Computer Science 2021-01-01 Donghan Yu , Ruohong Zhang , Zhengbao Jiang , Yuexin Wu , Yiming Yang

Despite their exceptional generative abilities, large text-to-image diffusion models, much like skilled but careless artists, often struggle with accurately depicting visual relationships between objects. This issue, as we uncover through…

Computer Vision and Pattern Recognition · Computer Science 2024-04-01 Yinwei Wu , Xingyi Yang , Xinchao Wang

Recent years have witnessed much interest in temporal reasoning over knowledge graphs (KG) for complex question answering (QA), but there remains a substantial gap in human capabilities. We explore how to generalize relational graph…

Computation and Language · Computer Science 2023-10-09 Aditya Sharma , Apoorv Saxena , Chitrank Gupta , Seyed Mehran Kazemi , Partha Talukdar , Soumen Chakrabarti

Semantic representations have long been argued as potentially useful for enforcing meaning preservation and improving generalization performance of machine translation methods. In this work, we are the first to incorporate information about…

Computation and Language · Computer Science 2020-06-23 Diego Marcheggiani , Jasmijn Bastings , Ivan Titov

Emotion Recognition in Conversation (ERC) is critical for enabling natural human-machine interactions. However, existing methods predominantly employ categorical or dimensional emotion annotations, which often fail to adequately represent…

Computation and Language · Computer Science 2026-03-10 Yoshiki Tanaka , Ryuichi Uehara , Koji Inoue , Michimasa Inaba

AMR-to-text generation is used to transduce Abstract Meaning Representation structures (AMR) into text. A key challenge in this task is to efficiently learn effective graph representations. Previously, Graph Convolution Networks (GCNs) were…

Computation and Language · Computer Science 2020-10-12 Yan Zhang , Zhijiang Guo , Zhiyang Teng , Wei Lu , Shay B. Cohen , Zuozhu Liu , Lidong Bing

In the past few years, audiences from different fields witness the achievements of sequence-to-sequence models (e.g., LSTM+attention, Pointer Generator Networks, and Transformer) to enhance dialogue content generation. While content fluency…

Computation and Language · Computer Science 2020-10-23 Changzhen Ji , Xin Zhou , Yating Zhang , Xiaozhong Liu , Changlong Sun , Conghui Zhu , Tiejun Zhao

Keyphrase extraction (KE) aims to summarize a set of phrases that accurately express a concept or a topic covered in a given document. Recently, Sequence-to-Sequence (Seq2Seq) based generative framework is widely used in KE task, and it has…

Computation and Language · Computer Science 2020-10-27 Haoyu Zhang , Dingkun Long , Guangwei Xu , Pengjun Xie , Fei Huang , Ji Wang

Incorporating external graph knowledge into neural chatbot models has been proven effective for enhancing dialogue generation. However, in conventional graph neural networks (GNNs), message passing on a graph is independent from text,…

Computation and Language · Computer Science 2023-06-29 Chen Tang , Hongbo Zhang , Tyler Loakman , Chenghua Lin , Frank Guerin

Emotion-cause pair extraction (ECPE), an emerging task in sentiment analysis, aims at extracting pairs of emotions and their corresponding causes in documents. This is a more challenging problem than emotion cause extraction (ECE), since it…

Computation and Language · Computer Science 2021-04-16 Qixuan Sun , Yaqi Yin , Hong Yu

Existing image captioning methods just focus on understanding the relationship between objects or instances in a single image, without exploring the contextual correlation existed among contextual image. In this paper, we propose Dual Graph…

Computer Vision and Pattern Recognition · Computer Science 2021-08-06 Xinzhi Dong , Chengjiang Long , Wenju Xu , Chunxia Xiao

Human beings are fundamentally sociable -- that we generally organize our social lives in terms of relations with other people. Understanding social relations from an image has great potential for intelligent systems such as social chatbots…

Computer Vision and Pattern Recognition · Computer Science 2020-07-20 Wanhua Li , Yueqi Duan , Jiwen Lu , Jianjiang Feng , Jie Zhou