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Large Language Models (LLMs) have achieved impressive progress in natural language processing, but their limited ability to retain long-term context constrains performance on document-level or multi-turn tasks. Retrieval-Augmented…

Computation and Language · Computer Science 2025-05-20 Zhangyu Wang , Siyuan Gao , Rong Zhou , Hao Wang , Li Ning

Retrieval Augmented Generation (RAG) has become prevalent in question-answering (QA) tasks due to its ability of utilizing search engine to enhance the quality of long-form question-answering (LFQA). Despite the emergence of various open…

Computation and Language · Computer Science 2024-07-02 Tianchi Cai , Zhiwen Tan , Xierui Song , Tao Sun , Jiyan Jiang , Yunqi Xu , Yinger Zhang , Jinjie Gu

Data cleaning, architecture, and loss function design are important factors contributing to high-performance face recognition. Previously, the research community tries to improve the performance of each single aspect but failed to present a…

Computer Vision and Pattern Recognition · Computer Science 2022-09-13 Manyuan Zhang , Guanglu Song , Yu Liu , Hongsheng Li

There is an abundant literature on face detection due to its important role in many vision applications. Since Viola and Jones proposed the first real-time AdaBoost based face detector, Haar-like features have been adopted as the method of…

Computer Vision and Pattern Recognition · Computer Science 2010-09-30 Sakrapee Paisitkriangkrai , Chunhua Shen , Jian Zhang

Deep learning technology has enabled successful modeling of complex facial features when high quality images are available. Nonetheless, accurate modeling and recognition of human faces in real world scenarios `on the wild' or under adverse…

Computer Vision and Pattern Recognition · Computer Science 2020-11-30 S. W. Arachchilage , E. Izquierdo

In this paper we describe a mechanism to improve Information Retrieval (IR) on the web. The method is based on Formal Concepts Analysis (FCA) that it is makes semantical relations during the queries, and allows a reorganizing, in the shape…

Information Retrieval · Computer Science 2010-03-09 Abderrahim El Qadi , Driss Aboutajedine , Yassine Ennouary

Retrieval-Augmented Generation (RAG) has emerged as a powerful technique for enhancing the quality of responses in Question-Answering (QA) tasks. However, existing approaches often struggle with retrieving contextually relevant information,…

Computation and Language · Computer Science 2026-01-27 Tianyi Yang , Nashrah Haque , Vaishnave Jonnalagadda , Yuya Jeremy Ong , Zhehui Chen , Yanzhao Wu , Lei Yu , Divyesh Jadav , Wenqi Wei

This paper investigates the design of a unified search engine to serve multiple retrieval-augmented generation (RAG) agents, each with a distinct task, backbone large language model (LLM), and RAG strategy. We introduce an iterative…

Computation and Language · Computer Science 2025-06-27 Alireza Salemi , Hamed Zamani

Face quality assessment aims at estimating the utility of a face image for the purpose of recognition. It is a key factor to achieve high face recognition performances. Currently, the high performance of these face recognition systems come…

Computer Vision and Pattern Recognition · Computer Science 2020-07-13 Philipp Terhörst , Jan Niklas Kolf , Naser Damer , Florian Kirchbuchner , Arjan Kuijper

Dense Retrieval (DR) reaches state-of-the-art results in first-stage retrieval, but little is known about the mechanisms that contribute to its success. Therefore, in this work, we conduct an interpretation study of recently proposed DR…

Information Retrieval · Computer Science 2021-11-30 Jingtao Zhan , Jiaxin Mao , Yiqun Liu , Jiafeng Guo , Min Zhang , Shaoping Ma

Given a query and a document corpus, the information retrieval (IR) task is to output a ranked list of relevant documents. Combining large language models (LLMs) with embedding-based retrieval models, recent work shows promising results on…

Computation and Language · Computer Science 2023-11-01 Daman Arora , Anush Kini , Sayak Ray Chowdhury , Nagarajan Natarajan , Gaurav Sinha , Amit Sharma

With a growing demand for the search by image, many works have studied the task of fashion instance-level image retrieval (FIR). Furthermore, the recent works introduce a concept of fashion attribute manipulation (FAM) which manipulates a…

Computer Vision and Pattern Recognition · Computer Science 2019-07-12 Minchul Shin , Sanghyuk Park , Taeksoo Kim

Despite limited success, information retrieval (IR) systems today are not intelligent or reliable. IR systems return poor search results when users formulate their information needs into incomplete or ambiguous queries (i.e., weak queries).…

Information Retrieval · Computer Science 2015-02-18 Hui Zhang , Kiduk Yang , Elin Jacob

In this paper, we propose an alternative to deep neural networks for semantic information retrieval for the case of long documents. This new approach exploiting clustering techniques to take into account the meaning of words in Information…

Information Retrieval · Computer Science 2025-07-29 Paul Mbathe Mekontchou , Armel Fotsoh , Bernabe Batchakui , Eddy Ella

Electronic Health Records (EHR) store clinical documentation as base64 encoded attachments in FHIR DocumentReference resources, which makes semantic question answering difficult. Traditional vector database methods often miss nuanced…

Computation and Language · Computer Science 2025-10-31 Tarun Kumar Chawdhury , Jon D. Duke

Retrieval approaches that score documents based on learned dense vectors (i.e., dense retrieval) rather than lexical signals (i.e., conventional retrieval) are increasingly popular. Their ability to identify related documents that do not…

Information Retrieval · Computer Science 2023-08-01 Hrishikesh Kulkarni , Sean MacAvaney , Nazli Goharian , Ophir Frieder

Retrieval-Augmented Generation (RAG) aims to generate more reliable and accurate responses, by augmenting large language models (LLMs) with the external vast and dynamic knowledge. Most previous work focuses on using RAG for single-round…

Artificial Intelligence · Computer Science 2024-03-28 Linhao Ye , Zhikai Lei , Jianghao Yin , Qin Chen , Jie Zhou , Liang He

Content Based Image Retrieval(CBIR) is one of the important subfield in the field of Information Retrieval. The goal of a CBIR algorithm is to retrieve semantically similar images in response to a query image submitted by the end user. CBIR…

Information Retrieval · Computer Science 2014-09-03 Vikas Verma

Large Language Models (LLMs) have significantly enhanced conversational Artificial Intelligence(AI) chatbots; however, domain-specific accuracy and the avoidance of factual inconsistencies remain pressing challenges, particularly for large…

Information Retrieval · Computer Science 2025-09-24 Olalekan K. Akindele , Bhupesh Kumar Mishra , Kenneth Y. Wertheim

Most content-based image retrieval systems consider either one single query, or multiple queries that include the same object or represent the same semantic information. In this paper we consider the content-based image retrieval problem…

Information Retrieval · Computer Science 2015-06-18 Ko-Jen Hsiao , Jeff Calder , Alfred O. Hero
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