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Answering complex questions over knowledge bases (KB-QA) faces huge input data with billions of facts, involving millions of entities and thousands of predicates. For efficiency, QA systems first reduce the answer search space by…

Information Retrieval · Computer Science 2022-04-05 Philipp Christmann , Rishiraj Saha Roy , Gerhard Weikum

In spoken question answering, QA systems are designed to answer questions from contiguous text spans within the related speech transcripts. However, the most natural way that human seek or test their knowledge is via human conversations.…

Computation and Language · Computer Science 2020-10-20 Chenyu You , Nuo Chen , Fenglin Liu , Dongchao Yang , Yuexian Zou

In simple open-domain question answering (QA), dense retrieval has become one of the standard approaches for retrieving the relevant passages to infer an answer. Recently, dense retrieval also achieved state-of-the-art results in multi-hop…

Information Retrieval · Computer Science 2021-09-23 Georgios Sidiropoulos , Nikos Voskarides , Svitlana Vakulenko , Evangelos Kanoulas

Recent development of large-scale question answering (QA) datasets triggered a substantial amount of research into end-to-end neural architectures for QA. Increasingly complex systems have been conceived without comparison to simpler neural…

Computation and Language · Computer Science 2017-06-09 Dirk Weissenborn , Georg Wiese , Laura Seiffe

In open question answering (QA), the answer to a question is produced by retrieving and then analyzing documents that might contain answers to the question. Most open QA systems have considered only retrieving information from unstructured…

Computation and Language · Computer Science 2021-02-11 Wenhu Chen , Ming-Wei Chang , Eva Schlinger , William Wang , William W. Cohen

The Visual Question Answering (VQA) task combines challenges for processing data with both Visual and Linguistic processing, to answer basic `common sense' questions about given images. Given an image and a question in natural language, the…

Computer Vision and Pattern Recognition · Computer Science 2020-12-24 Yash Srivastava , Vaishnav Murali , Shiv Ram Dubey , Snehasis Mukherjee

The rapid growth of Large Language Models (LLMs) has been a driving force in transforming various domains, reshaping the artificial general intelligence landscape. However, the increasing computational and memory demands of these models…

Computation and Language · Computer Science 2024-04-22 Tianyu Ding , Tianyi Chen , Haidong Zhu , Jiachen Jiang , Yiqi Zhong , Jinxin Zhou , Guangzhi Wang , Zhihui Zhu , Ilya Zharkov , Luming Liang

Visual Question Answering (VQA) in its ideal form lets us study reasoning in the joint space of vision and language and serves as a proxy for the AI task of scene understanding. However, most VQA benchmarks to date are focused on questions…

Computer Vision and Pattern Recognition · Computer Science 2019-09-05 Kenneth Marino , Mohammad Rastegari , Ali Farhadi , Roozbeh Mottaghi

The conventional paradigm in neural question answering (QA) for narrative content is limited to a two-stage process: first, relevant text passages are retrieved and, subsequently, a neural network for machine comprehension extracts the…

Computation and Language · Computer Science 2019-08-13 Bernhard Kratzwald , Anna Eigenmann , Stefan Feuerriegel

Building automatic technical support system is an important yet challenge task. Conceptually, to answer a user question on a technical forum, a human expert has to first retrieve relevant documents, and then read them carefully to identify…

Computation and Language · Computer Science 2021-05-19 Wenhao Yu , Lingfei Wu , Yu Deng , Qingkai Zeng , Ruchi Mahindru , Sinem Guven , Meng Jiang

The task of Question Answering has gained prominence in the past few decades for testing the ability of machines to understand natural language. Large datasets for Machine Reading have led to the development of neural models that cater to…

Computation and Language · Computer Science 2018-06-20 Soumya Wadhwa , Khyathi Raghavi Chandu , Eric Nyberg

Currently, a growing number of health consumers are asking health-related questions online, at any time and from anywhere, which effectively lowers the cost of health care. The most common approach is using online health expert…

Information Retrieval · Computer Science 2016-12-22 Ze Hu , Zhan Zhang , Qing Chen , Haiqin Yang , Decheng Zuo

We develop a unified system to answer directly from text open-domain questions that may require a varying number of retrieval steps. We employ a single multi-task transformer model to perform all the necessary subtasks -- retrieving…

Computation and Language · Computer Science 2021-11-01 Peng Qi , Haejun Lee , Oghenetegiri "TG" Sido , Christopher D. Manning

Developing efficient and scalable algorithms for Latent Dirichlet Allocation (LDA) is of wide interest for many applications. Previous work has developed an O(1) Metropolis-Hastings sampling method for each token. However, the performance…

Machine Learning · Statistics 2016-03-03 Jianfei Chen , Kaiwei Li , Jun Zhu , Wenguang Chen

Open-Domain Conversational Question Answering (ODConvQA) aims at answering questions through a multi-turn conversation based on a retriever-reader pipeline, which retrieves passages and then predicts answers with them. However, such a…

Computation and Language · Computer Science 2023-06-08 Soyeong Jeong , Jinheon Baek , Sung Ju Hwang , Jong C. Park

Question Answering (QA) research is a significant and challenging task in Natural Language Processing. QA aims to extract an exact answer from a relevant text snippet or a document. The motivation behind QA research is the need of user who…

Information Retrieval · Computer Science 2018-10-10 Lokesh Kumar Sharma , Namita Mittal

OwnThink stands as the most extensive Chinese open-domain knowledge graph introduced in recent times. Despite prior attempts in question answering over OwnThink (OQA), existing studies have faced limitations in model representation…

Computation and Language · Computer Science 2024-06-05 Zhuoyang Li , Liran Deng , Hui Liu , Qiaoqiao Liu , Junzhao Du

Deep neural networks have shown striking progress and obtained state-of-the-art results in many AI research fields in the recent years. However, it is often unsatisfying to not know why they predict what they do. In this paper, we address…

Computer Vision and Pattern Recognition · Computer Science 2016-09-12 Yash Goyal , Akrit Mohapatra , Devi Parikh , Dhruv Batra

Existing synthetic datasets (FigureQA, DVQA) for reasoning over plots do not contain variability in data labels, real-valued data, or complex reasoning questions. Consequently, proposed models for these datasets do not fully address the…

Computer Vision and Pattern Recognition · Computer Science 2020-02-04 Nitesh Methani , Pritha Ganguly , Mitesh M. Khapra , Pratyush Kumar

The intelligent question answering (IQA) system can accurately capture users' search intention by understanding the natural language questions, searching relevant content efficiently from a massive knowledge-base, and returning the answer…

Artificial Intelligence · Computer Science 2021-06-17 Yachen Tang , Haiyun Han , Xianmao Yu , Jing Zhao , Guangyi Liu , Longfei Wei
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