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We consider the problem of conversational question answering over a large-scale knowledge base. To handle huge entity vocabulary of a large-scale knowledge base, recent neural semantic parsing based approaches usually decompose the task…

Computation and Language · Computer Science 2019-10-14 Tao Shen , Xiubo Geng , Tao Qin , Daya Guo , Duyu Tang , Nan Duan , Guodong Long , Daxin Jiang

Detecting semantic similarities between sentences is still a challenge today due to the ambiguity of natural languages. In this work, we propose a simple approach to identifying semantically similar questions by combining the strengths of…

Computation and Language · Computer Science 2020-06-09 Yoan Dimitrov

Question answering (QA) systems are sensitive to the many different ways natural language expresses the same information need. In this paper we turn to paraphrases as a means of capturing this knowledge and present a general framework which…

Computation and Language · Computer Science 2017-08-22 Li Dong , Jonathan Mallinson , Siva Reddy , Mirella Lapata

In recent years, there have been amazing advances in deep learning methods for machine reading. In machine reading, the machine reader has to extract the answer from the given ground truth paragraph. Recently, the state-of-the-art machine…

Computation and Language · Computer Science 2018-04-13 Phu Mon Htut , Samuel R. Bowman , Kyunghyun Cho

Quantum Language Models (QLMs) in which words are modelled as quantum superposition of sememes have demonstrated a high level of model transparency and good post-hoc interpretability. Nevertheless, in the current literature word sequences…

Computation and Language · Computer Science 2021-12-21 Yiwei Chen , Yu Pan , Daoyi Dong

Question-answering (QA) is an important application of Information Retrieval (IR) and language models, and the latest trend is toward pre-trained large neural networks with embedding parameters. Augmenting QA performances with these LLMs…

Information Retrieval · Computer Science 2024-11-05 Lixiao Yang , Mengyang Xu , Weimao Ke

Recently, open domain multi-turn chatbots have attracted much interest from lots of researchers in both academia and industry. The dominant retrieval-based methods use context-response matching mechanisms for multi-turn response selection.…

Computation and Language · Computer Science 2020-05-19 Chao Xiong , Che Liu , Zijun Xu , Junfeng Jiang , Jieping Ye

Speech-based open-domain question answering (QA over a large corpus of text passages with spoken questions) has emerged as an important task due to the increasing number of users interacting with QA systems via speech interfaces. Passage…

Computation and Language · Computer Science 2024-09-23 Georgios Sidiropoulos , Evangelos Kanoulas

Visual Question Answering (VQA) concerns providing answers to Natural Language questions about images. Several deep neural network approaches have been proposed to model the task in an end-to-end fashion. Whereas the task is grounded in…

Artificial Intelligence · Computer Science 2020-02-03 Mehrdad Alizadeh , Barbara Di Eugenio

Search is one of the most common platforms used to seek information. However, users mostly get overloaded with results whenever they use such a platform to resolve their queries. Nowadays, direct answers to queries are being provided as a…

Computation and Language · Computer Science 2021-01-08 Ankush Chopra , Shruti Agrawal , Sohom Ghosh

Humans explain inter-object relationships with semantic labels that demonstrate a high-level understanding required to perform complex Vision-Language tasks such as Visual Question Answering (VQA). However, existing VQA models represent…

Computer Vision and Pattern Recognition · Computer Science 2020-10-06 Moshiur Farazi , Salman Khan , Nick Barnes

Neural network based sequence-to-sequence models in an encoder-decoder framework have been successfully applied to solve Question Answering (QA) problems, predicting answers from statements and questions. However, almost all previous models…

Computation and Language · Computer Science 2017-09-05 Huayu Li , Martin Renqiang Min , Yong Ge , Asim Kadav

Generating semantically coherent responses is still a major challenge in dialogue generation. Different from conventional text generation tasks, the mapping between inputs and responses in conversations is more complicated, which highly…

Computation and Language · Computer Science 2018-08-28 Liangchen Luo , Jingjing Xu , Junyang Lin , Qi Zeng , Xu Sun

Some Question Answering (QA) systems rely on knowledge bases (KBs) to provide accurate answers. Entity Linking (EL) plays a critical role in linking natural language mentions to KB entries. However, most existing EL methods are designed for…

Computation and Language · Computer Science 2026-05-22 Yajie Luo , Yihong Wu , Muzhi Li , Jia Ao Sun , Xinyu Wang , Liheng Ma , Yingxue Zhang , Jian-Yun Nie

We present a study on the design of multilingual Answer Sentence Selection (AS2) models, which are a core component of modern Question Answering (QA) systems. The main idea is to transfer data, created from one resource rich language, e.g.,…

Computation and Language · Computer Science 2021-02-23 Thuy Vu , Alessandro Moschitti

This paper presents a Kernel Entity Salience Model (KESM) that improves text understanding and retrieval by better estimating entity salience (importance) in documents. KESM represents entities by knowledge enriched distributed…

Information Retrieval · Computer Science 2018-05-04 Chenyan Xiong , Zhengzhong Liu , Jamie Callan , Tie-Yan Liu

Machine Reading Comprehension (MRC) for question answering (QA), which aims to answer a question given the relevant context passages, is an important way to test the ability of intelligence systems to understand human language.…

Computation and Language · Computer Science 2019-11-20 Di Jin , Shuyang Gao , Jiun-Yu Kao , Tagyoung Chung , Dilek Hakkani-tur

Retrieval augmented language models have recently become the standard for knowledge intensive tasks. Rather than relying purely on latent semantics within the parameters of large neural models, these methods enlist a semi-parametric memory…

Computation and Language · Computer Science 2023-01-24 Wenhu Chen , Pat Verga , Michiel de Jong , John Wieting , William Cohen

By transmitting task-related information only, semantic communications yield significant performance gains over conventional communications. However, the lack of mature semantic theory about semantic information quantification and…

Information Theory · Computer Science 2024-04-09 Lei Yan , Zhijin Qin , Chunfeng Li , Rui Zhang , Yongzhao Li , Xiaoming Tao

Deep language models learning a hierarchical representation proved to be a powerful tool for natural language processing, text mining and information retrieval. However, representations that perform well for retrieval must capture semantic…

Information Retrieval · Computer Science 2019-05-24 Tolgahan Cakaloglu , Xiaowei Xu