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Segmenting an unordered text document into different sections is a very useful task in many text processing applications like multiple document summarization, question answering, etc. This paper proposes structuring of an unordered text…

Information Retrieval · Computer Science 2019-01-30 Shashank Yadav , Tejas Shimpi , C. Ravindranath Chowdary , Prashant Sharma , Deepansh Agrawal , Shivang Agarwal

Text Document Clustering is one of the fastest growing research areas because of availability of huge amount of information in an electronic form. There are several number of techniques launched for clustering documents in such a way that…

Information Retrieval · Computer Science 2014-01-13 R. Jensi , Dr. G. Wiselin Jiji

Motivated by the success of powerful while expensive techniques to recognize words in a holistic way, object proposals techniques emerge as an alternative to the traditional text detectors. In this paper we introduce a novel object…

Computer Vision and Pattern Recognition · Computer Science 2017-02-02 Lluis Gomez-Bigorda , Dimosthenis Karatzas

A focused crawler aims at discovering as many web pages and web sites relevant to a target topic as possible, while avoiding irrelevant ones. Reinforcement Learning (RL) has been a promising direction for optimizing focused crawling,…

Information Retrieval · Computer Science 2025-05-20 Andreas Kontogiannis , Dimitrios Kelesis , Vasilis Pollatos , George Giannakopoulos , Georgios Paliouras

This article presents results of experimental studies the effectiveness of the genetic algorithm that was applied to effective queries creation and relevant document selection. Studies were carried out to the comparative analysis of the…

Information Retrieval · Computer Science 2015-04-06 V. K. Ivanov , B. V. Palyukh

Searching for all occurrences of a pattern in a text is a fundamental problem in computer science with applications in many other fields, like natural language processing, information retrieval and computational biology. Sampled string…

Data Structures and Algorithms · Computer Science 2019-08-19 Simone Faro , Arianna Pavone , Francesco Pio Marino

This paper proposed an approach to automatically discovering subject dimension, action dimension, object dimension and adverbial dimension from texts to efficiently operate texts and support query in natural language. The high quality of…

Computation and Language · Computer Science 2025-05-02 Jian Zhou , Jiazheng Li , Sirui Zhuge , Hai Zhuge

Cartesian tree matching is the problem of finding all substrings in a given text which have the same Cartesian trees as that of a given pattern. In this paper, we deal with Cartesian tree matching for the case of multiple patterns. We…

Data Structures and Algorithms · Computer Science 2019-11-06 Geonmo Gu , Siwoo Song , Simone Faro , Thierry Lecroq , Kunsoo Park

This paper investigates the optimal signal detection problem with a particular interest in large-scale multiple-input multiple-output (MIMO) systems. The problem is NP-hard and can be solved optimally by searching the shortest path on the…

Machine Learning · Computer Science 2022-03-22 Le He , Ke He , Lisheng Fan , Xianfu Lei , Arumugam Nallanathan , George K. Karagiannidis

Suffix trees are one of the most versatile data structures in stringology, with many applications in bioinformatics. Their main drawback is their size, which can be tens of times larger than the input sequence. Much effort has been put into…

Data Structures and Algorithms · Computer Science 2017-12-18 Andrea Farruggia , Travis Gagie , Gonzalo Navarro , Simon J. Puglisi , Jouni Sirén

Text classification is the process of classifying documents into predefined categories based on their content. It is the automated assignment of natural language texts to predefined categories. Text classification is the primary requirement…

Information Retrieval · Computer Science 2010-09-28 S. M. Kamruzzaman , Farhana Haider , Ahmed Ryadh Hasan

Effective decision-making and problem-solving in conversational systems require the ability to identify and acquire missing information through targeted questioning. A key challenge lies in efficiently narrowing down a large space of…

Artificial Intelligence · Computer Science 2025-06-03 Harshita Chopra , Chirag Shah

We introduce a new metric of match, called Cartesian tree matching, which means that two strings match if they have the same Cartesian trees. Based on Cartesian tree matching, we define single pattern matching for a text of length n and a…

Data Structures and Algorithms · Computer Science 2019-05-23 Sung Gwan Park , Amihood Amir , Gad M. Landau , Kunsoo Park

A new geometrically-motivated algorithm for nonnegative matrix factorization is developed and applied to the discovery of latent "topics" for text and image "document" corpora. The algorithm is based on robustly finding and clustering…

Machine Learning · Statistics 2016-11-17 Weicong Ding , Mohammad H. Rohban , Prakash Ishwar , Venkatesh Saligrama

Decoding from the output distributions of large language models to produce high-quality text is a complex challenge in language modeling. Various approaches, such as beam search, sampling with temperature, $k-$sampling, nucleus…

Computation and Language · Computer Science 2024-10-22 Esteban Garces Arias , Julian Rodemann , Meimingwei Li , Christian Heumann , Matthias Aßenmacher

Learning text representation is crucial for text classification and other language related tasks. There are a diverse set of text representation networks in the literature, and how to find the optimal one is a non-trivial problem. Recently,…

Machine Learning · Computer Science 2019-12-24 Yujing Wang , Yaming Yang , Yiren Chen , Jing Bai , Ce Zhang , Guinan Su , Xiaoyu Kou , Yunhai Tong , Mao Yang , Lidong Zhou

Keyword-based searches are today's standard in digital libraries. Yet, complex retrieval scenarios like in scientific knowledge bases, need more sophisticated access paths. Although each document somewhat contributes to a domain's body of…

Information Retrieval · Computer Science 2024-12-23 Hermann Kroll , Pascal Sackhoff , Timo Breuer , Ralf Schenkel , Wolf-Tilo Balke

Optimization methods are essential in solving complex problems across various domains. In this research paper, we introduce a novel optimization method called Gaussian Crunching Search (GCS). Inspired by the behaviour of particles in a…

Optimization and Control · Mathematics 2023-07-28 Benny Wong

Document retrieval has greatly benefited from the advancements of large-scale pre-trained language models (PLMs). However, their effectiveness is often limited in theme-specific applications for specialized areas or industries, due to…

Information Retrieval · Computer Science 2024-03-08 SeongKu Kang , Shivam Agarwal , Bowen Jin , Dongha Lee , Hwanjo Yu , Jiawei Han

A central task in string processing is text indexing, where the goal is to preprocess a text (a string of length $n$) into an efficient index (a data structure) supporting queries about the text. Cole, Gottlieb, and Lewenstein (STOC 2004)…

Data Structures and Algorithms · Computer Science 2025-10-31 Tomasz Kociumaka , Jakub Radoszewski
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