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Axiomatic information retrieval (IR) seeks a set of principle properties desirable in IR models. These properties when formally expressed provide guidance in the search for better relevance estimation functions. Neural ranking models…

Information Retrieval · Computer Science 2019-04-16 Corby Rosset , Bhaskar Mitra , Chenyan Xiong , Nick Craswell , Xia Song , Saurabh Tiwary

A large amount of data is present on the web. It contains huge number of web pages and to find suitable information from them is very cumbersome task. There is need to organize data in formal manner so that user can easily access and use…

Information Retrieval · Computer Science 2014-03-28 Gagandeep Singh , Vishal Jain

In information retrieval research, precision and recall have long been used to evaluate IR systems. However, given that a number of retrieval systems resembling one another are already available to the public, it is valuable to retrieve…

Computation and Language · Computer Science 2007-05-23 Atsushi Fujii , Tetsuya Ishikawa

In recent decades, machine learning has provided valuable models and algorithms for processing and extracting knowledge from time-series surveys. Different classifiers have been proposed and performed to an excellent standard. Nevertheless,…

Instrumentation and Methods for Astrophysics · Physics 2023-03-14 Francisco Pérez-Galarce , Karim Pichara , Pablo Huijse , Márcio Catelan , Domingo Mery

What if Information Retrieval (IR) systems did not just retrieve relevant information that is stored in their indices, but could also "understand" it and synthesise it into a single document? We present a preliminary study that makes a…

Information Retrieval · Computer Science 2016-06-28 Christina Lioma , Birger Larsen , Casper Petersen , Jakob Grue Simonsen

Large language models often encounter challenges with static knowledge and hallucinations, which undermine their reliability. Retrieval-augmented generation (RAG) mitigates these issues by incorporating external information. However, user…

Information Retrieval · Computer Science 2024-11-21 Zhicong Li , Jiahao Wang , Zhishu Jiang , Hangyu Mao , Zhongxia Chen , Jiazhen Du , Yuanxing Zhang , Fuzheng Zhang , Di Zhang , Yong Liu

This paper highlights the growing importance of information retrieval (IR) engines in the scientific community, addressing the inefficiency of traditional keyword-based search engines due to the rising volume of publications. The proposed…

Information Retrieval · Computer Science 2024-10-24 Mahsa Shamsabadi , Jennifer D'Souza

Managing the data for Information Retrieval (IR) experiments can be challenging. Dataset documentation is scattered across the Internet and once one obtains a copy of the data, there are numerous different data formats to work with. Even…

Information Retrieval · Computer Science 2021-05-11 Sean MacAvaney , Andrew Yates , Sergey Feldman , Doug Downey , Arman Cohan , Nazli Goharian

The problem of numerical differentiation can be thought of as an inverse problem by considering it as solving a Volterra equation. It is well known that such inverse integral problems are ill-posed and one requires regularization methods to…

Numerical Analysis · Mathematics 2020-04-15 Abinash Nayak

We show that supervised neural information retrieval (IR) models are prone to learning sparse attention patterns over passage tokens, which can result in key phrases including named entities receiving low attention weights, eventually…

Computation and Language · Computer Science 2022-04-26 Revanth Gangi Reddy , Md Arafat Sultan , Martin Franz , Avirup Sil , Heng Ji

Retrieval-augmented generation integrates the capabilities of large language models with relevant information retrieved from an extensive corpus, yet encounters challenges when confronted with real-world noisy data. One recent solution is…

Computation and Language · Computer Science 2025-09-30 Kun Zhu , Xiaocheng Feng , Xiyuan Du , Yuxuan Gu , Weijiang Yu , Haotian Wang , Qianglong Chen , Zheng Chu , Jingchang Chen , Bing Qin

Retrieval-augmented generation (RAG) systems have advanced large language models (LLMs) in complex deep search scenarios requiring multi-step reasoning and iterative information retrieval. However, existing approaches face critical…

Computation and Language · Computer Science 2025-10-09 Shuang Sun , Huatong Song , Yuhao Wang , Ruiyang Ren , Jinhao Jiang , Junjie Zhang , Fei Bai , Jia Deng , Wayne Xin Zhao , Zheng Liu , Lei Fang , Zhongyuan Wang , Ji-Rong Wen

IRGAN is an information retrieval (IR) modeling approach that uses a theoretical minimax game between a generative and a discriminative model to iteratively optimize both of them, hence unifying the generative and discriminative approaches.…

Information Retrieval · Computer Science 2019-10-02 Moksh Jain , Sowmya Kamath S

Data summarization is the process of generating interpretable and representative subsets from a dataset. Existing time series summarization approaches often search for recurring subsequences using a set of manually devised similarity…

Machine Learning · Computer Science 2023-08-29 Alireza Ghods , Trong Nghia Hoang , Diane Cook

Effective query formulation is a key challenge in long-document Information Retrieval (IR). This challenge is particularly acute in domain-specific contexts like patent retrieval, where documents are lengthy, linguistically complex, and…

Information Retrieval · Computer Science 2025-07-23 Eleni Kamateri , Renukswamy Chikkamath , Michail Salampasis , Linda Andersson , Markus Endres

Document summarisation can be formulated as a sequential decision-making problem, which can be solved by Reinforcement Learning (RL) algorithms. The predominant RL paradigm for summarisation learns a cross-input policy, which requires…

Computation and Language · Computer Science 2019-07-31 Yang Gao , Christian M. Meyer , Mohsen Mesgar , Iryna Gurevych

Neural information retrieval (IR) systems have progressed rapidly in recent years, in large part due to the release of publicly available benchmarking tasks. Unfortunately, some dimensions of this progress are illusory: the majority of the…

Low-rank adaptations (LoRA) are widely used to fine-tune large models across various domains for specific downstream tasks. While task-specific LoRAs are often available, concerns about data privacy and intellectual property can restrict…

Machine Learning · Computer Science 2025-04-16 Hongxu Chen , Runshi Li , Bowei Zhu , Zhen Wang , Long Chen

Quantization has emerged as a promising direction for model compression. Recently, data-free quantization has been widely studied as a promising method to avoid privacy concerns, which synthesizes images as an alternative to real training…

Computer Vision and Pattern Recognition · Computer Science 2024-02-22 Jianhong Bai , Yuchen Yang , Huanpeng Chu , Hualiang Wang , Zuozhu Liu , Ruizhe Chen , Xiaoxuan He , Lianrui Mu , Chengfei Cai , Haoji Hu

Deep Reinforcement Learning (Deep RL) has been receiving increasingly more attention thanks to its encouraging performance on a variety of control tasks. Yet, conventional regularization techniques in training neural networks (e.g., $L_2$…

Machine Learning · Computer Science 2021-11-30 Zhuang Liu , Xuanlin Li , Bingyi Kang , Trevor Darrell