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In community-based question answering (CQA) platforms, automatic answer ranking for a given question is critical for finding potentially popular answers in early times. The mainstream approaches learn to generate answer ranking scores based…

Computation and Language · Computer Science 2021-03-23 Wei Zhang , Zeyuan Chen , Chao Dong , Wen Wang , Hongyuan Zha , Jianyong Wang

Question categorization and expert retrieval methods have been crucial for information organization and accessibility in community question & answering (CQA) platforms. Research in this area, however, has dealt with only the text modality.…

Computation and Language · Computer Science 2019-05-28 Avikalp Srivastava , Hsin Wen Liu , Sumio Fujita

Answer selection and knowledge base question answering (KBQA) are two important tasks of question answering (QA) systems. Existing methods solve these two tasks separately, which requires large number of repetitive work and neglects the…

Computation and Language · Computer Science 2018-12-07 Yang Deng , Yuexiang Xie , Yaliang Li , Min Yang , Nan Du , Wei Fan , Kai Lei , Ying Shen

Question Answering (QA) models over Knowledge Bases (KBs) are capable of providing more precise answers by utilizing relation information among entities. Although effective, most of these models solely rely on fixed relation representations…

Computation and Language · Computer Science 2021-04-02 Xu Wang , Shuai Zhao , Bo Cheng , Jiale Han , Yingting Li , Hao Yang , Ivan Sekulic , Guoshun Nan

The usage and amount of information available on the internet increase over the past decade. This digitization leads to the need for automated answering system to extract fruitful information from redundant and transitional knowledge…

Computation and Language · Computer Science 2022-02-03 Hariom A. Pandya , Brijesh S. Bhatt

Knowledge-aware question answering (KAQA) requires the model to answer questions over a knowledge base, which is essential for both open-domain QA and domain-specific QA, especially when language models alone cannot provide all the…

Computation and Language · Computer Science 2023-03-16 Qichen Ye , Bowen Cao , Nuo Chen , Weiyuan Xu , Yuexian Zou

Answer selection (answer ranking) is one of the key steps in many kinds of question answering (QA) applications, where deep models have achieved state-of-the-art performance. Among these deep models, recurrent neural network (RNN) based…

Computation and Language · Computer Science 2019-05-28 Dong Xu , Jianhui Ji , Haikuan Huang , Hongbo Deng , Wu-Jun Li

Community Question Answering (CQA) websites have become valuable repositories which host a massive volume of human knowledge. To maximize the utility of such knowledge, it is essential to evaluate the quality of an existing question or…

Databases · Computer Science 2018-07-09 Yuan Yao , Hanghang Tong , Tao Xie , Leman Akoglu , Feng Xu , Jian Lu

The recently developed retrieval-augmented generation (RAG) technology has enabled the efficient construction of domain-specific applications. However, it also has limitations, including the gap between vector similarity and the relevance…

Community Question Answering (cQA) provides new interesting research directions to the traditional Question Answering (QA) field, e.g., the exploitation of the interaction between users and the structure of related posts. In this context,…

Computation and Language · Computer Science 2019-11-27 Preslav Nakov , Lluís Màrquez , Walid Magdy , Alessandro Moschitti , James Glass , Bilal Randeree

Visual Question Answering (VQA) requires integration of feature maps with drastically different structures and focus of the correct regions. Image descriptors have structures at multiple spatial scales, while lexical inputs inherently…

Computer Vision and Pattern Recognition · Computer Science 2018-07-20 Yang Shi , Tommaso Furlanello , Sheng Zha , Animashree Anandkumar

Computerized Adaptive Testing (CAT) is a widely used, efficient test mode that adapts to the examinee's proficiency level in the test domain. CAT requires pre-trained item profiles, for CAT iteratively assesses the student real-time based…

Machine Learning · Computer Science 2025-03-12 Soonwoo Kwon , Sojung Kim , Seunghyun Lee , Jin-Young Kim , Suyeong An , Kyuseok Kim

Visual Question Answering (VQA) models employ attention mechanisms to discover image locations that are most relevant for answering a specific question. For this purpose, several multimodal fusion strategies have been proposed, ranging from…

Computer Vision and Pattern Recognition · Computer Science 2021-08-26 Moshiur R Farazi , Salman H Khan , Nick Barnes

Community Question Answering (CQA) websites have become valuable knowledge repositories where individuals exchange information by asking and answering questions. With an ever-increasing number of questions and high migration of users in and…

Information Retrieval · Computer Science 2022-08-05 Vaibhav Krishna , Nino Antulov-Fantulin

We implement a method for re-ranking top-10 results of a state-of-the-art question answering (QA) system. The goal of our re-ranking approach is to improve the answer selection given the user question and the top-10 candidates. We focus on…

Machine Learning · Computer Science 2021-06-17 Michael Barz , Daniel Sonntag

Attributed Question Answering (AQA) has attracted wide attention, but there are still several limitations in evaluating the attributions, including lacking fine-grained attribution categories, relying on manual annotations, and failing to…

Computation and Language · Computer Science 2025-07-02 Nan Hu , Jiaoyan Chen , Yike Wu , Guilin Qi , Hongru Wang , Sheng Bi , Yongrui Chen , Tongtong Wu , Jeff Z. Pan

Recommendation systems play a crucial role in helping users filter through vast amounts of information. However, traditional recommendation algorithms often overlook the integration and utilization of multi-source information, limiting…

Machine Learning · Computer Science 2024-09-25 Zhizhong Wu

Question-answering (QA) that comes naturally to humans is a critical component in seamless human-computer interaction. It has emerged as one of the most convenient and natural methods to interact with the web and is especially desirable in…

Computation and Language · Computer Science 2022-11-15 Deepak Gupta

Knowledge-based Vision Question Answering (KB-VQA) systems address complex visual-grounded questions with knowledge retrieved from external knowledge bases. The tasks of knowledge retrieval and answer generation tasks both necessitate…

Computer Vision and Pattern Recognition · Computer Science 2026-05-20 Jiaqi Deng , Kaize Shi , Zonghan Wu , Huan Huo , Dingxian Wang , Guandong Xu

As the rapid development of Intelligent Tutoring Systems (ITS) in the past decade, tracing the students' knowledge state has become more and more important in order to provide individualized learning guidance. This is the main idea of…

Computers and Society · Computer Science 2023-05-18 Zhongfeng Jia , Wei Su , Jiamin Liu , Wenli Yue