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Recent advancements in large language models (LLMs) have highlighted the importance of extending context lengths for handling complex tasks. While traditional methods for training on long contexts often use filtered long documents, these…

Computation and Language · Computer Science 2025-02-12 Chaochen Gao , Xing Wu , Qi Fu , Songlin Hu

Recently, result diversification has attracted a lot of attention as a means to improve the quality of results retrieved by user queries. In this paper, we propose a new, intuitive definition of diversity called DisC diversity. A DisC…

Databases · Computer Science 2013-06-27 Marina Drosou , Evaggelia Pitoura

As RDF becomes more widely established and the amount of linked data is rapidly increasing, the efficient querying of large amount of data becomes a significant challenge. In this paper, we propose a family of algorithms for querying large…

Databases · Computer Science 2022-09-13 Eleftherios Kalogeros , Manolis Gergatsoulis , Matthew Damigos , Christos Nomikos

An important benefit of multi-objective search is that it maintains a diverse population of candidates, which helps in deceptive problems in particular. Not all diversity is useful, however: candidates that optimize only one objective while…

Neural and Evolutionary Computing · Computer Science 2019-06-11 Hormoz Shahrzad , Daniel Fink , Risto Miikkulainen

W3C's XML-Query language offers a powerful instrument for information retrieval on XML repositories. This article describes an implementation of this retrieval in a real world's scenario. Distributed XML-Query processing reduces load on…

Distributed, Parallel, and Cluster Computing · Computer Science 2007-05-23 Christian Thiemann , Michael Schlenker , Thomas Severiens

Spreadsheets are end-user programs and domain models that are heavily employed in administration, financial forecasting, education, and science because of their intuitive, flexible, and direct approach to computation. As a result,…

Databases · Computer Science 2014-01-30 Michael Kohlhase , Corneliu Prodescu , Christian Liguda

EquiX is a search language for XML that combines the power of querying with the simplicity of searching. Requirements for such languages are discussed and it is shown that EquiX meets the necessary criteria. Both a graphical abstract syntax…

Databases · Computer Science 2007-05-23 Sara Cohen , Yaron Kanza , Yakov Kogan , Werner Nutt , Yehoshua Sagiv , Alexander Serebrenik

With the exponential increase in online scientific literature, identifying reliable domain-specific data has become increasingly important but also very challenging. Manual data collection and filtering for domain-specific scientific…

Information Retrieval · Computer Science 2026-03-10 Nikita Gautam , Doina Caragea , Ignacio Ciampitti , Federico Gomez

Users may strive to formulate an adequate textual query for their information need. Search engines assist the users by presenting query suggestions. To preserve the original search intent, suggestions should be context-aware and account for…

Neural and Evolutionary Computing · Computer Science 2015-07-09 Alessandro Sordoni , Yoshua Bengio , Hossein Vahabi , Christina Lioma , Jakob G. Simonsen , Jian-Yun Nie

Improving the reliability of large language models (LLMs) is critical for deploying them in real-world scenarios. In this paper, we propose \textbf{Deliberative Searcher}, the first framework to integrate certainty calibration with…

Artificial Intelligence · Computer Science 2026-04-20 Zhenyun Yin , Shujie Wang , Xuhong Wang , Xingjun Ma , Yinchun Wang

The probabilistic threshold query is one of the most common queries in uncertain databases, where a result satisfying the query must be also with probability meeting the threshold requirement. In this paper, we investigate probabilistic…

Databases · Computer Science 2013-01-14 Jianxin Li , Chengfei Liu , Rui Zhou , Jeffrey Xu Yu

Vertical search engines focus on specific slices of content, such as the Web of a single country or the document collection of a large corporation. Despite this, like general open web search engines, they are expensive to maintain,…

Large Language Models (LLMs) often struggle to maintain their original performance when faced with semantically coherent but task-irrelevant contextual information. Although prior studies have explored this issue using fixed-template or…

Computation and Language · Computer Science 2025-09-23 Yanbo Wang , Zixiang Xu , Yue Huang , Chujie Gao , Siyuan Wu , Jiayi Ye , Pin-Yu Chen , Xiuying Chen , Xiangliang Zhang

Classification is a common AI problem, and vector search is a typical solution. This transforms a given body of text into a numerical representation, known as an embedding, and modern improvements to vector search focus on optimising speed…

Information Retrieval · Computer Science 2025-06-04 Lee Harris

Query Expansion using Pseudo Relevance Feedback is a useful and a popular technique for reformulating the query. In our proposed query expansion method, we assume that relevant information can be found within a document near the central…

Information Retrieval · Computer Science 2015-02-19 Rekha Vaidyanathan , Sujoy Das , Namita Srivastava

The problem of proximity full-text search is considered. If a search query contains high-frequently occurring words, then multi-component key indexes deliver an improvement in the search speed compared with ordinary inverted indexes. It was…

Information Retrieval · Computer Science 2021-08-03 Alexander B. Veretennikov

There exist many high-dimensional data in real-world applications such as biology, computer vision, and social networks. Feature selection approaches are devised to confront with high-dimensional data challenges with the aim of efficient…

Machine Learning · Computer Science 2021-06-22 Mohsen Ghassemi Parsa , Hadi Zare , Mehdi Ghatee

In retrieval-augmented systems, context ranking techniques are commonly employed to reorder the retrieved contexts based on their relevance to a user query. A standard approach is to measure this relevance through the similarity between…

Information Retrieval · Computer Science 2024-10-22 Weichao Zhou , Jiaxin Zhang , Hilaf Hasson , Anu Singh , Wenchao Li

Large Language Models (LLMs) have significantly impacted many facets of natural language processing and information retrieval. Unlike previous encoder-based approaches, the enlarged context window of these generative models allows for…

Information Retrieval · Computer Science 2024-05-24 Andrew Parry , Sean MacAvaney , Debasis Ganguly

"High Quality Related Search Query Suggestions" task aims at recommending search queries which are real, accurate, diverse, relevant and engaging. Obtaining large amounts of query-quality human annotations is expensive. Prior work on…

Information Retrieval · Computer Science 2021-08-11 Praveen Kumar Bodigutla