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Cloud computing has made federated database systems (FDBS) significantly more practical to implement than in the past. As part of a recent Web-based Geographic Information System (WebGIS) project, we are employing cloud-native technologies…

Distributed, Parallel, and Cluster Computing · Computer Science 2022-11-02 Zheng Li , Nicolás Saldías-Vallejos , María Andrea Rodríguez , Austen Rainer

A hidden database refers to a dataset that an organization makes accessible on the web by allowing users to issue queries through a search interface. In other words, data acquisition from such a source is not by following static…

Databases · Computer Science 2012-08-02 Cheng Sheng , Nan Zhang , Yufei Tao , Xin Jin

Many sorts of structured data are commonly stored in a multi-relational format of interrelated tables. Under this relational model, exploratory data analysis can be done by using relational queries. As an example, in the Internet Movie…

Databases · Computer Science 2009-07-01 Markus Ojala , Gemma C. Garriga , Aristides Gionis , Heikki Mannila

Over the past 40 years, database management systems (DBMSs) have evolved to provide a sophisticated variety of data management capabilities. At the same time, tools for managing queries over the data have remained relatively primitive. One…

Databases · Computer Science 2009-09-15 Nodira Khoussainova , Magda Balazinska , Wolfgang Gatterbauer , YongChul Kwon , Dan Suciu

We present fVDB, a novel GPU-optimized framework for deep learning on large-scale 3D data. fVDB provides a complete set of differentiable primitives to build deep learning architectures for common tasks in 3D learning such as convolution,…

Computer Vision and Pattern Recognition · Computer Science 2025-09-30 Francis Williams , Jiahui Huang , Jonathan Swartz , Gergely Klár , Vijay Thakkar , Matthew Cong , Xuanchi Ren , Ruilong Li , Clement Fuji-Tsang , Sanja Fidler , Eftychios Sifakis , Ken Museth

A significant number of novel database architectures and data models have been proposed during the last decade. While some of these new systems have gained in popularity, they lack a proper formalization, and a precise understanding of the…

Databases · Computer Science 2017-04-26 Elena Botoeva , Diego Calvanese , Benjamin Cogrel , Guohui Xiao

Databases, collections of related data, are as old as the written word. A database can be anything from a homemaker's metal recipe file to a sophisticated data warehouse. Yet today, when we think of a database we invariably think of…

Databases · Computer Science 2007-05-23 Nancy Hartline Bercich

In distributed database (DDB) management systems, fragment allocation is one of the most important components that can directly affect the performance of DDB. In this research work, we will show that declarative programming languages, e.g.…

Databases · Computer Science 2016-07-21 Mohammad Reza Abbasifard , Omid Isfahani Alamdari

Although the intention of RDF is to provide an open, minimally constraining way for representing information, there exists an increasing number of applications for which guarantees on the structure and values of an RDF data set become…

Databases · Computer Science 2013-12-09 Michael Schmidt , Georg Lausen

This paper introduces LMFAO (Layered Multiple Functional Aggregate Optimization), an in-memory optimization and execution engine for batches of aggregates over the input database. The primary motivation for this work stems from the…

Databases · Computer Science 2019-06-21 Maximilian Schleich , Dan Olteanu , Mahmoud Abo Khamis , Hung Q. Ngo , XuanLong Nguyen

Manipulating a database system on a quantum computer is an essential aim to benefit from the promising speed-up of quantum computers over classical computers in areas that take a vast amount of storage and processing time such as in…

Quantum Physics · Physics 2007-05-31 Ahmed Younes

Query optimization has played a central role in database research for decades. However, more often than not, the proposed optimization techniques lead to a performance improvement in some, but not in all, situations. Therefore, we urgently…

Matrix factorization exploits the idea that, in complex high-dimensional data, the actual signal typically lies in lower-dimensional structures. These lower dimensional objects provide useful insight, with interpretability favored by sparse…

Methodology · Statistics 2022-12-14 Lorenzo Schiavon , Bernardo Nipoti , Antonio Canale

One of the distinctive features of Information Retrieval systems comparing to Database Management systems, is that they offer better compression for posting lists, resulting in better I/O performance and thus faster query evaluation. In…

Information Retrieval · Computer Science 2009-06-18 Panagiotis Papadakos , Yannis Theoharis , Yannis Marketakis , Nikos Armenatzoglou , Yannis Tzitzikas

Efficient search operations in databases are paramount for timely retrieval of information various applications. This research introduces a novel approach, combining dynamicalgorithm1 selection and caching2 strategies, to optimize search…

Databases · Computer Science 2023-11-15 Hakikat Singh

We propose Cognitive Databases, an approach for transparently enabling Artificial Intelligence (AI) capabilities in relational databases. A novel aspect of our design is to first view the structured data source as meaningful unstructured…

Databases · Computer Science 2017-12-21 Rajesh Bordawekar , Bortik Bandyopadhyay , Oded Shmueli

The growing reliance on data-driven decision-making highlights the need for more intuitive ways to access and analyze information stored in relational databases. However, the requirement of SQL knowledge has long been a significant barrier…

Databases · Computer Science 2024-10-10 Steve Tueno Fotso

Relational databases (RDBs) play a crucial role in many real-world web applications, supporting data management across multiple interconnected tables. Beyond typical retrieval-oriented tasks, prediction tasks on RDBs have recently gained…

Artificial Intelligence · Computer Science 2026-01-27 Kyungho Kim , Geon Lee , Juyeon Kim , Dongwon Choi , Shinhwan Kang , Kijung Shin

Using structural informations to summarize graph-structured RDF data is helpful in tackling query performance issues. However, leveraging structural indexes needs to revise or even redesign the internal of RDF systems. Given an RDF dataset…

Databases · Computer Science 2020-01-24 Lei Gai

Relational databases are extensively utilized in a variety of modern information system applications, and they always carry valuable data patterns. There are a huge number of data mining or machine learning tasks conducted on relational…

Machine Learning · Computer Science 2023-12-05 Han Zhang , Quan Gan , David Wipf , Weinan Zhang