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Due to the concise and structured nature of tables, the knowledge contained therein may be incomplete or missing, posing a significant challenge for table question answering (TableQA) and data analysis systems. Most existing datasets either…

计算与语言 · 计算机科学 2024-05-15 Mengkang Hu , Haoyu Dong , Ping Luo , Shi Han , Dongmei Zhang

Commonsense and background knowledge is required for a QA model to answer many nontrivial questions. Different from existing work on knowledge-aware QA, we focus on a more challenging task of leveraging external knowledge to generate…

计算与语言 · 计算机科学 2019-09-09 Bin Bi , Chen Wu , Ming Yan , Wei Wang , Jiangnan Xia , Chenliang Li

Question answering (QA) in law is a challenging problem because legal documents are much more complicated than normal texts in terms of terminology, structure, and temporal and logical relationships. It is even more difficult to perform…

计算与语言 · 计算机科学 2023-06-09 Thi-Hai-Yen Vuong , Ha-Thanh Nguyen , Quang-Huy Nguyen , Le-Minh Nguyen , Xuan-Hieu Phan

We consider a joint information extraction (IE) model, solving named entity recognition, coreference resolution and relation extraction jointly over the whole document. In particular, we study how to inject information from a knowledge base…

计算与语言 · 计算机科学 2021-07-07 Severine Verlinden , Klim Zaporojets , Johannes Deleu , Thomas Demeester , Chris Develder

Deep learning methods for Visual Place Recognition (VPR) have advanced significantly, largely driven by large-scale datasets. However, most existing approaches are trained on a single dataset, which can introduce dataset-specific inductive…

计算机视觉与模式识别 · 计算机科学 2026-03-10 Jiuhong Xiao , Yang Zhou , Giuseppe Loianno

Retrieval-Augmented Large Language Models (LLMs), which incorporate the non-parametric knowledge from external knowledge bases into LLMs, have emerged as a promising approach to enhancing response accuracy in several tasks, such as…

计算与语言 · 计算机科学 2024-03-29 Soyeong Jeong , Jinheon Baek , Sukmin Cho , Sung Ju Hwang , Jong C. Park

Finding relevant products given a user query is pivotal to an e-commerce platform, as it can drive shopping behavior and generate revenue. The challenge lies in accurately predicting the correlation between queries and products. Recently,…

信息检索 · 计算机科学 2026-03-25 Ge Zhang , Rohan Deepak Ajwani , Yaochen Hu , Tony Zheng , Hongjian Gu , Wei Guo , Mark Coates , Yingxue Zhang

It is prevalent to utilize external knowledge to help machine answer questions that need background commonsense, which faces a problem that unlimited knowledge will transmit noisy and misleading information. Towards the issue of introducing…

计算与语言 · 计算机科学 2021-07-06 Luxi Xing , Yue Hu , Jing Yu , Yuqiang Xie , Wei Peng

Discovering the intended items of user queries from a massive repository of items is one of the main goals of an e-commerce search system. Relevance prediction is essential to the search system since it helps improve performance. When…

Query cost estimation is a classical task for database management. Recently, researchers apply the AI-driven model to implement query cost estimation for achieving high accuracy. However, two defects of feature design lead to poor cost…

数据库 · 计算机科学 2023-10-03 Yu Yan , Hongzhi Wang , Junfang Huang , Dake Zhong , Man Yang , Kaixin Zhang , Tao Yu , Tianqing Wan

Online reviews provide rich information about products and service, while it remains inefficient for potential consumers to exploit the reviews for fulfilling their specific information need. We propose to explore question generation as a…

信息检索 · 计算机科学 2020-05-05 Qian Yu , Lidong Bing , Qiong Zhang , Wai Lam , Luo Si

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…

计算与语言 · 计算机科学 2025-07-02 Nan Hu , Jiaoyan Chen , Yike Wu , Guilin Qi , Hongru Wang , Sheng Bi , Yongrui Chen , Tongtong Wu , Jeff Z. Pan

Extraction of missing attribute values is to find values describing an attribute of interest from a free text input. Most past related work on extraction of missing attribute values work with a closed world assumption with the possible set…

计算与语言 · 计算机科学 2018-10-09 Guineng Zheng , Subhabrata Mukherjee , Xin Luna Dong , Feifei Li

Most of the existing information retrieval systems are based on bag of words model and are not equipped with common world knowledge. Work has been done towards improving the efficiency of such systems by using intelligent algorithms to…

人工智能 · 计算机科学 2015-03-17 Pekka Malo , Pyry Siitari , Ankur Sinha

In recent years, there has been a surge in research on Question Difficulty Estimation (QDE) using natural language processing techniques. Transformer-based neural networks achieve state-of-the-art performance, primarily through supervised…

机器学习 · 计算机科学 2024-10-11 Arthur Thuy , Ekaterina Loginova , Dries F. Benoit

The challenge of solving data mining problems in e-commerce applications such as recommendation system (RS) and click-through rate (CTR) prediction is how to make inferences by constructing combinatorial features from a large number of…

机器学习 · 计算机科学 2021-10-20 Zhenyuan Zhong , Jie Yang , Yacong Ma , Shoubin Dong , Jinlong Hu

Unsupervised question answering is an attractive task due to its independence on labeled data. Previous works usually make use of heuristic rules as well as pre-trained models to construct data and train QA models. However, most of these…

计算与语言 · 计算机科学 2022-08-24 Yuxiang Nie , Heyan Huang , Zewen Chi , Xian-Ling Mao

Question answering (QA) is a high-level ability of natural language processing. Most extractive ma-chine reading comprehension models focus on factoid questions (e.g., who, when, where) and restrict the output answer as a short and…

计算与语言 · 计算机科学 2021-10-25 Peng Cui , Dongyao Hu , Le Hu

This paper presents a novel approach to address the Entity Recognition and Linking Challenge at NLPCC 2015. The task involves extracting named entity mentions from short search queries and linking them to entities within a reference Chinese…

计算与语言 · 计算机科学 2023-09-14 Di Lu , Zhongping Liang , Caixia Yuan , Xiaojie Wang

Question Answering (QA) has shown great success thanks to the availability of large-scale datasets and the effectiveness of neural models. Recent research works have attempted to extend these successes to the settings with few or no labeled…

计算与语言 · 计算机科学 2020-05-07 Zhongli Li , Wenhui Wang , Li Dong , Furu Wei , Ke Xu