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Generating high-quality answers consistently by providing contextual information embedded in the prompt passed to the Large Language Model (LLM) is dependent on the quality of information retrieval. As the corpus of contextual information…

Information Retrieval · Computer Science 2024-08-01 Sai Ganesh , Anupam Purwar , Gautam B

With the abundant amount of available online and offline text data, there arises a crucial need to extract the relation between phrases and summarize the main content of each document in a few words. For this purpose, there have been many…

Information Retrieval · Computer Science 2023-10-19 Serafina Kamp , Morteza Fayazi , Zineb Benameur-El , Shuyan Yu , Ronald Dreslinski

After reviewing unnormalized and normalized information distances based on incomputable notions of Kolmogorov complexity, we discuss how Kolmogorov complexity can be approximated by data compression algorithms. We argue that optimal…

Computational Complexity · Computer Science 2007-05-23 Alexei Kaltchenko

In an automated search system, similarity is a key concept in solving a human task. Indeed, human process is usually a natural categorization that underlies many natural abilities such as image recovery, language comprehension, decision…

Computer Vision and Pattern Recognition · Computer Science 2018-12-19 Yosr Ghozzi , Nesrine Baklouti , Hani Hagras , Mounir Ben Ayed , Adel M. Alimi

To evaluate Information Retrieval (IR) effectiveness, a possible approach is to use test collections, which are composed of a collection of documents, a set of description of information needs (called topics), and a set of relevant…

Information Retrieval · Computer Science 2020-11-03 Kevin Roitero

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

Traditional retrieval methods rely on transforming user queries into vector representations and retrieving documents based on cosine similarity within an embedding space. While efficient and scalable, this approach often fails to handle…

Computation and Language · Computer Science 2025-03-25 Felix Faltings , Wei Wei , Yujia Bao

Retrieving and extracting knowledge from extensive research documents and large databases presents significant challenges for researchers, students, and professionals in today's information-rich era. Existing retrieval systems, which rely…

Information Retrieval · Computer Science 2025-02-06 Mohammed-Khalil Ghali , Abdelrahman Farrag , Daehan Won , Yu Jin

There are many scenarios where we may want to find pairs of textually similar documents in a large corpus (e.g. a researcher doing literature review, or an R&D project manager analyzing project proposals). To programmatically discover those…

Computation and Language · Computer Science 2020-12-16 Carlos Badenes-Olmedo , Jose-Luis Redondo García , Oscar Corcho

In this paper, we study the task of image retrieval, where the input query is specified in the form of an image plus some text that describes desired modifications to the input image. For example, we may present an image of the Eiffel…

Computer Vision and Pattern Recognition · Computer Science 2018-12-19 Nam Vo , Lu Jiang , Chen Sun , Kevin Murphy , Li-Jia Li , Li Fei-Fei , James Hays

Document retrieval is one of the best established information retrieval activities since the sixties, pervading all search engines. Its aim is to obtain, from a collection of text documents, those most relevant to a pattern query. Current…

Information Retrieval · Computer Science 2013-10-01 Gonzalo Navarro

Information retrieval (IR) plays a crucial role in locating relevant resources from vast amounts of data, and its applications have evolved from traditional knowledge bases to modern retrieval models (RMs). The emergence of large language…

Computation and Language · Computer Science 2023-12-13 Jiazhan Feng , Chongyang Tao , Xiubo Geng , Tao Shen , Can Xu , Guodong Long , Dongyan Zhao , Daxin Jiang

This paper proposes a novel zero-shot composed image retrieval (CIR) method considering the query-target relationship by masked image-text pairs. The objective of CIR is to retrieve the target image using a query image and a query text.…

Computer Vision and Pattern Recognition · Computer Science 2024-06-28 Huaying Zhang , Rintaro Yanagi , Ren Togo , Takahiro Ogawa , Miki Haseyama

Generative retrieval (Wang et al., 2022; Tay et al., 2022) is a popular approach for end-to-end document retrieval that directly generates document identifiers given an input query. We introduce summarization-based document IDs, in which…

Computation and Language · Computer Science 2024-10-31 Haoxin Li , Daniel Cheng , Phillip Keung , Jungo Kasai , Noah A. Smith

Image-based retrieval in large Earth observation archives is challenging because one needs to navigate across thousands of candidate matches only with the query image as a guide. By using text as information supporting the visual query, the…

Computer Vision and Pattern Recognition · Computer Science 2024-10-28 Li Mi , Xianjie Dai , Javiera Castillo-Navarro , Devis Tuia

As web agents (e.g., Deep Research) routinely consume massive volumes of web pages to gather and analyze information, LLM context management -- under large token budgets and low signal density -- emerges as a foundational, high-importance,…

Information Retrieval · Computer Science 2025-12-09 Yihan Chen , Benfeng Xu , Xiaorui Wang , Zhendong Mao

Genomes may be analyzed from an information viewpoint as very long strings, containing functional elements of variable length, which have been assembled by evolution. In this work an innovative information theory based algorithm is…

Genomics · Quantitative Biology 2020-09-23 Vincenzo Bonnici , Giuditta Franco , Vincenzo Manca

The main aim of an information retrieval system is to extract appropriate information from an enormous collection of data based on users need. The basic concept of the information retrieval system is that when a user sends out a query, the…

Information Retrieval · Computer Science 2020-12-17 Abdulmalik Johar

Normalized web distance (NWD) is a similarity or normalized semantic distance based on the World Wide Web or another large electronic database, for instance Wikipedia, and a search engine that returns reliable aggregate page counts. For…

Information Retrieval · Computer Science 2020-07-24 Andrew R. Cohen , Paul M. B. Vitanyi

This paper proposes a general framework for matching similar subsequences in both time series and string databases. The matching results are pairs of query subsequences and database subsequences. The framework finds all possible pairs of…

Databases · Computer Science 2012-08-02 Haohan Zhu , George Kollios , Vassilis Athitsos