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Efficient explorative data analysis systems must take into account both what a user knows and wants to know. This paper proposes a principled framework for interactive visual exploration of relations in data, through views most informative…

Machine Learning · Statistics 2021-07-02 Kai Puolamäki , Emilia Oikarinen , Andreas Henelius

In many modern applications, including analysis of gene expression and text documents, the data are noisy, high-dimensional, and unordered--with no particular meaning to the given order of the variables. Yet, successful learning is often…

Methodology · Statistics 2008-07-25 Ann B. Lee , Boaz Nadler , Larry Wasserman

We introduce a method to learn a hierarchy of successively more abstract representations of complex data based on optimizing an information-theoretic objective. Intuitively, the optimization searches for a set of latent factors that best…

Machine Learning · Computer Science 2014-11-03 Greg Ver Steeg , Aram Galstyan

This article covers the problem of processing of Big Data that describe process of complex networks and network systems operation. It also introduces the notion of hierarchical network systems combination into associations and conglomerates…

Data Analysis, Statistics and Probability · Physics 2016-03-28 Olexandr Polishchuk , Dmytro Polishchuk , Maria Tyutyunnyk , Mykhailo Yadzhak

Efficient discovery of frequent itemsets in large datasets is a crucial task of data mining. In recent years, several approaches have been proposed for generating high utility patterns, they arise the problems of producing a large number of…

Databases · Computer Science 2012-12-04 B. Adinarayana Reddy , O. Srinivasa Rao , M. H. M. Krishna Prasad

In the big data era, scalability has become a crucial requirement for any useful computational model. Probabilistic graphical models are very useful for mining and discovering data insights, but they are not scalable enough to be suitable…

Artificial Intelligence · Computer Science 2014-08-21 Khalifeh AlJadda , Mohammed Korayem , Camilo Ortiz , Trey Grainger , John A. Miller , William S. York

We propose a flexible and multi-scale method for organizing, visualizing, and understanding datasets sampled from or near stratified spaces. The first part of the algorithm produces a cover tree using adaptive thresholds based on a…

Computational Geometry · Computer Science 2016-03-01 Paul Bendich , Ellen Gasparovic , Christopher J. Tralie , John Harer

Autonomous exploration is a fundamental problem for various applications of unmanned aerial vehicles. Existing methods, however, were demonstrated to insufficient exploration rate, due to the lack of efficient global coverage, conservative…

Robotics · Computer Science 2020-12-29 Boyu Zhou , Yichen Zhang , Xinyi Chen , Shaojie Shen

Recently, data exchange platforms have emerged in the digital economy to enable better resource allocation in a data-driven society, which requires cross-organizational data collaborations. Understanding the characteristics of the data on…

Social and Information Networks · Computer Science 2020-03-12 Teruaki Hayashi , Yukio Ohsawa

Multi-dimensional data exploration is a classic research topic in visualization. Most existing approaches are designed for identifying record patterns in dimensional space or subspace. In this paper, we propose a visual analytics approach…

Machine Learning · Computer Science 2021-04-27 Peng Xie , Wenyuan Tao , Jie Li , Wentao Huang , Siming Chen

Data visualization and analytics are nowadays one of the corner-stones of Data Science, turning the abundance of Big Data being produced through modern systems into actionable knowledge. Indeed, the Big Data era has realized the…

Databases · Computer Science 2023-11-21 Nikos Bikakis

Scientific knowledge is growing rapidly, making it difficult to track progress and high-level conceptual links across broad disciplines. While tools like citation networks and search engines help retrieve related papers, they lack the…

Computation and Language · Computer Science 2025-10-29 Muhan Gao , Jash Shah , Weiqi Wang , Kuan-Hao Huang , Daniel Khashabi

Many data we collect today are in tabular form, with rows as records and columns as attributes associated with each record. Understanding the structural relationship in tabular data can greatly facilitate the data science process.…

Data Structures and Algorithms · Computer Science 2020-09-09 Jin Cao , Yibo Zhao , Linjun Zhang , Jason Li

Trustworthy Artificial Intelligence solutions are essential in today's data-driven applications, prioritizing principles such as robustness, safety, transparency, explainability, and privacy among others. This has led to the emergence of…

Machine Learning · Computer Science 2024-04-04 Alberto Argente-Garrido , Cristina Zuheros , M. Victoria Luzón , Francisco Herrera

High-throughput technologies to collect field data have made observations possible at scale in several branches of life sciences. The data collected can range from the molecular level (genotypes) to physiological (phenotypic traits) and…

Computational Geometry · Computer Science 2021-07-07 Youjia Zhou , Methun Kamruzzaman , Patrick Schnable , Bala Krishnamoorthy , Ananth Kalyanaraman , Bei Wang

Discovering valuable insights from data through meaningful associations is a crucial task. However, it becomes challenging when trying to identify representative patterns in quantitative databases, especially with large datasets, as…

Databases · Computer Science 2024-10-31 Lamine Diop , Marc Plantevit

Recent advancements in large language models have significantly improved their context windows, yet challenges in effective long-term memory management remain. We introduce MemTree, an algorithm that leverages a dynamic, tree-structured…

Computation and Language · Computer Science 2025-03-21 Alireza Rezazadeh , Zichao Li , Wei Wei , Yujia Bao

When data have a hierarchical structure, such as students nested within classrooms, ignoring dependencies between observations can compromise the validity of imputation procedures. Standard tree-based imputation methods implicitly assume…

Applications · Statistics 2025-03-21 Nico Föge , Jakob Schwerter , Ketevan Gurtskaia , Markus Pauly , Philipp Doebler

This paper argues that there are three fundamental challenges that need to be overcome in order to foster the adoption of big data technologies in non-computer science related disciplines: addressing issues of accessibility of such…

Distributed, Parallel, and Cluster Computing · Computer Science 2016-11-17 Muhammed Asif Saleem , Blesson Varghese , Adam Barker

In this article, we propose a novel navigation framework that leverages a two layered graph representation of the environment for efficient large-scale exploration, while it integrates a novel uncertainty awareness scheme to handle dynamic…

Robotics · Computer Science 2024-02-07 Akash Patel , Mario A V Saucedo , Christoforos Kanellakis , George Nikolakopoulos