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相关论文: Simple and Effective Knowledge-Driven Query Expans…

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This paper makes one of the first efforts toward automatically generating complex questions from knowledge graphs. Particularly, we study how to leverage existing simple question datasets for this task, under two separate scenarios: using…

计算与语言 · 计算机科学 2019-12-12 Jie Zhao , Xiang Deng , Huan Sun

Query Expansion (QE) improves retrieval performance by enriching queries with related terms. Recently, Large Language Models (LLMs) have been used for QE, but existing methods face a trade-off: generating diverse terms boosts performance…

信息检索 · 计算机科学 2025-09-03 Jinseok Kim , Sukmin Cho , Soyeong Jeong , Sangyeop Kim , Sungzoon Cho

Query expansion is a technique widely used in image search consisting in combining highly ranked images from an original query into an expanded query that is then reissued, generally leading to increased recall and precision. An important…

计算机视觉与模式识别 · 计算机科学 2020-07-17 Albert Gordo , Filip Radenovic , Tamara Berg

As an essential task in information extraction (IE), Event-Event Causal Relation Extraction (ECRE) aims to identify and classify the causal relationships between event mentions in natural language texts. However, existing research on ECRE…

计算与语言 · 计算机科学 2024-10-08 Zimu Wang , Lei Xia , Wei Wang , Xinya Du

The problem of knowledge-based visual question answering involves answering questions that require external knowledge in addition to the content of the image. Such knowledge typically comes in various forms, including visual, textual, and…

计算机视觉与模式识别 · 计算机科学 2021-12-15 Jialin Wu , Jiasen Lu , Ashish Sabharwal , Roozbeh Mottaghi

Retrieval-augmented generation (RAG) has emerged to address the knowledge-intensive visual question answering (VQA) task. Current methods mainly employ separate retrieval and generation modules to acquire external knowledge and generate…

计算机视觉与模式识别 · 计算机科学 2025-02-25 Xinwei Long , Zhiyuan Ma , Ermo Hua , Kaiyan Zhang , Biqing Qi , Bowen Zhou

Document-level Relation Extraction (DocRE) aims to identify relationships between entity pairs within a document. However, most existing methods assume a uniform label distribution, resulting in suboptimal performance on real-world,…

计算与语言 · 计算机科学 2025-01-14 Khai Phan Tran , Wen Hua , Xue Li

Product-related question answering (QA) is an important but challenging task in E-Commerce. It leads to a great demand on automatic review-driven QA, which aims at providing instant responses towards user-posted questions based on diverse…

计算与语言 · 计算机科学 2020-08-31 Yang Deng , Wenxuan Zhang , Wai Lam

Video quality assessment (VQA) has attracted growing attention in recent years. While the great expense of annotating large-scale VQA datasets has become the main obstacle for current deep-learning methods. To surmount the constraint of…

计算机视觉与模式识别 · 计算机科学 2023-08-03 Hongbo Liu , Mingda Wu , Kun Yuan , Ming Sun , Yansong Tang , Chuanchuan Zheng , Xing Wen , Xiu Li

Query Expansion (QE) is a well established method for improving retrieval metrics in image search applications. When using QE, the search is conducted on a new query vector, constructed using an aggregation function over the query and…

计算机视觉与模式识别 · 计算机科学 2021-12-07 Benjamin Klein , Lior Wolf

Modelling mix-and-match relationships among fashion items has become increasingly demanding yet challenging for modern E-commerce recommender systems. When performing clothes matching, most existing approaches leverage the latent visual…

信息检索 · 计算机科学 2021-07-06 Yang Li , Tong Chen , Zi Huang

The search for relevant information can be very frustrating for users who, unintentionally, use too general or inappropriate keywords to express their requests. To overcome this situation, query expansion techniques aim at transforming the…

信息检索 · 计算机科学 2016-05-13 Joan Guisado-Gámez , Arnau Prat-Pérez , Josep Lluís Larriba-Pey

In this paper, we argue that database systems be augmented with an automated data exploration service that methodically steers users through the data in a meaningful way. Such an automated system is crucial for deriving insights from…

数据库 · 计算机科学 2015-11-02 Kyriaki Dimitriadou , Olga Papaemmanouil , Yanlei Diao

We propose a simple and effective strategy for data augmentation for low-resource machine reading comprehension (MRC). Our approach first pretrains the answer extraction components of a MRC system on the augmented data that contains…

计算与语言 · 计算机科学 2021-06-09 Hoang Van , Vikas Yadav , Mihai Surdeanu

Knowledge-based Visual Question Answering (KB-VQA) requires models to answer questions by integrating visual information with external knowledge. However, retrieved knowledge is often noisy, partially irrelevant, or misaligned with the…

计算机视觉与模式识别 · 计算机科学 2026-02-19 Xianwei Mao , Kai Ye , Sheng Zhou , Nan Zhang , Haikuan Huang , Bin Li , Jiajun Bu

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…

信息检索 · 计算机科学 2018-10-10 Lokesh Kumar Sharma , Namita Mittal

Automating table extraction (TE) from business documents is critical for industrial workflows but remains challenging due to sparse annotations and error-prone multi-stage pipelines. While semi-supervised learning (SSL) can leverage…

Being widely used in learning unbiased visual question answering (VQA) models, Data Augmentation (DA) helps mitigate language biases by generating extra training samples beyond the original samples. While today's DA methods can generate…

计算机视觉与模式识别 · 计算机科学 2024-01-30 Yuhang Zheng , Zhen Wang , Long Chen

The vast majority of cybersecurity information is unstructured text, including critical data within databases such as CVE, NVD, CWE, CAPEC, and the MITRE ATT&CK Framework. These databases are invaluable for analyzing attack patterns and…

密码学与安全 · 计算机科学 2024-12-24 Tanjim Bin Faruk

Classifying and resolving coreferences of objects (e.g., product names) and attributes (e.g., product aspects) in opinionated reviews is crucial for improving the opinion mining performance. However, the task is challenging as one often…

计算与语言 · 计算机科学 2021-07-20 Jiahua Chen , Shuai Wang , Sahisnu Mazumder , Bing Liu