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The rapid expansion of Earth Science data from satellite observations, reanalysis products, and numerical simulations has created a critical bottleneck in scientific discovery, namely identifying relevant datasets for a given research…

Databases · Computer Science 2026-03-03 Youran Sun , Yixin Wen , Haizhao Yang

As scientific literature grows rapidly, automated survey generation has become a key capability for AI scientists and human researchers. However, existing systems suffer from limited analytical depth due to reliance on abstracts and…

Artificial Intelligence · Computer Science 2026-05-29 Ziyue Yang , Da Ma , Hanqi Li , Zijian Wang , Tiancheng Huang , Zijian Hu , Chenrun Wang , Yunzhe Zhang , Xiaobao Wu , Kai Yu , Lu Chen

Recommender systems often struggle with over-specialization, which severely limits users' exposure to diverse content and creates filter bubbles that reduce serendipitous discovery. To address this fundamental limitation, this paper…

Information Retrieval · Computer Science 2026-05-27 Edoardo Bianchi

Existing search engines use keyword matching or tf-idf based matching to map the query to the web-documents and rank them. They also consider other factors such as page rank, hubs-and-authority scores, knowledge graphs to make the results…

Information Retrieval · Computer Science 2019-08-08 Manish Patel

Semantic search engines, which integrate the output of text mining (TM) methods, can significantly increase the ease and efficiency of finding relevant documents and locating important information within them. We present a novel search…

Information Retrieval · Computer Science 2021-03-24 Emrah Inan , Paul Thompson , Tim Yates , Sophia Ananiadou

Recognizing toponyms and resolving them to their real-world referents is required for providing advanced semantic access to textual data. This process is often hindered by the high degree of variation in toponyms. Candidate selection is the…

Computation and Language · Computer Science 2020-09-23 Mariona Coll Ardanuy , Kasra Hosseini , Katherine McDonough , Amrey Krause , Daniel van Strien , Federico Nanni

Traditional information retrieval systems rely on keywords to index documents and queries. In such systems, documents are retrieved based on the number of shared keywords with the query. This lexical-focused retrieval leads to inaccurate…

Information Retrieval · Computer Science 2013-03-08 Fatiha Boubekeur , Wassila Azzoug

We introduce and address the problem of ad hoc table retrieval: answering a keyword query with a ranked list of tables. This task is not only interesting on its own account, but is also being used as a core component in many other…

Information Retrieval · Computer Science 2018-03-09 Shuo Zhang , Krisztian Balog

Large Language Models cannot reliably acquire new knowledge post-deployment -- even when relevant text resources exist, models fail to transform them into actionable knowledge without retraining. Retrieval-Augmented Generation attempts to…

Neural and Evolutionary Computing · Computer Science 2026-02-19 Qi Sun , Stefan Nielsen , Rio Yokota , Yujin Tang

Retrieval-Augmented Generation (RAG) is a crucial method for mitigating hallucinations in Large Language Models (LLMs) and integrating external knowledge into their responses. Existing RAG methods typically employ query rewriting to clarify…

Computation and Language · Computer Science 2025-02-26 Zhuocheng Zhang , Yang Feng , Min Zhang

Query expansion with pseudo-relevance feedback (PRF) is a powerful approach to enhance the effectiveness in information retrieval. Recently, with the rapid advance of deep learning techniques, neural text generation has achieved promising…

Information Retrieval · Computer Science 2021-08-16 Minghui Huang , Dong Wang , Shuang Liu , Meizhen Ding

Use of web pages providing unstructured information poses variety of problems to the user, such as use of arbitrary formats, unsuitability for machine processing and likely incompleteness of information. Structured data alleviates these…

Information Retrieval · Computer Science 2012-08-10 Raghu Anantharangachar , Ramani Srinivasan

Retrieving answers in a quick and low cost manner without hallucinations from a combination of structured and unstructured data using Language models is a major hurdle. This is what prevents employment of Language models in knowledge…

Information Retrieval · Computer Science 2023-10-31 Anupam Purwar , Rahul Sundar

This paper introduces a simple yet effective query expansion approach, denoted as query2doc, to improve both sparse and dense retrieval systems. The proposed method first generates pseudo-documents by few-shot prompting large language…

Information Retrieval · Computer Science 2023-10-12 Liang Wang , Nan Yang , Furu Wei

The rapid growth of user-generated videos on the Internet has intensified the need for text-based video retrieval systems. Traditional methods mainly favor the concept-based paradigm on retrieval with simple queries, which are usually…

Computer Vision and Pattern Recognition · Computer Science 2020-07-07 Xun Yang , Jianfeng Dong , Yixin Cao , Xun Wang , Meng Wang , Tat-Seng Chua

We present Lean Finder, a semantic search engine for Lean and mathlib that understands and aligns with the intents of mathematicians. Progress in formal theorem proving is often hindered by the difficulty of locating relevant theorems and…

Machine Learning · Computer Science 2026-02-24 Jialin Lu , Kye Emond , Kaiyu Yang , Swarat Chaudhuri , Weiran Sun , Wuyang Chen

We propose a two-stage "Mine and Refine" contrastive training framework for semantic text embeddings to enhance multi-category e-commerce search retrieval. Large scale e-commerce search demands embeddings that generalize to long tail, noisy…

Information Retrieval · Computer Science 2026-02-20 Jiaqi Xi , Raghav Saboo , Luming Chen , Martin Wang , Sudeep Das

Although there has been a growing interest among industries in integrating generative LLMs into their services, limited experience and scarcity of resources act as a barrier in launching and servicing large-scale LLM-based services. In this…

Scientific document retrieval is a critical task for enabling knowledge discovery and supporting research across diverse domains. However, existing dense retrieval methods often struggle to capture fine-grained scientific concepts in texts…

Information Retrieval · Computer Science 2026-01-27 Wonbin Kweon , Runchu Tian , SeongKu Kang , Pengcheng Jiang , Zhiyong Lu , Jiawei Han , Hwanjo Yu

Worldwide visual geo-localization aims to determine the geographic location of an image anywhere on Earth using only its visual content. Despite recent progress, learning expressive representations of geographic space remains challenging…

Computer Vision and Pattern Recognition · Computer Science 2026-03-30 Angel Daruna , Nicholas Meegan , Han-Pang Chiu , Supun Samarasekera , Rakesh Kumar
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