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Object-centric process mining provides a more holistic view of processes where we analyze processes with multiple case notions. However, most object-centric process mining techniques consider the whole event log rather than the comparison…

Databases · Computer Science 2022-02-14 Anahita Farhang Ghahfarokhi , Wil M. P. van der Aalst

Differential privacy (DP) provides formal guarantees that the output of a database query does not reveal too much information about any individual present in the database. While many differentially private algorithms have been proposed in…

Cryptography and Security · Computer Science 2019-11-27 Royce J Wilson , Celia Yuxin Zhang , William Lam , Damien Desfontaines , Daniel Simmons-Marengo , Bryant Gipson

In this research paper so as to handle Information warehousing as well as online synthetic dispensation OLAP are necessary aspects of conclusion support which takes more and more turn into a focal point of the data source business.This…

Distributed, Parallel, and Cluster Computing · Computer Science 2016-12-28 Ahmed Mateen , Lareab Chaudhary

With the rise of XML as a standard for representing business data, XML data warehouses appear as suitable solutions for Web-based decision-support applications. In this context, it is necessary to allow OLAP analyses over XML data cubes…

Databases · Computer Science 2008-09-17 Marouane Hachicha , Hadj Mahboubi , Jérôme Darmont

Data analysis applications typically aggregate data across many dimensions looking for anomalies or unusual patterns. The SQL aggregate functions and the GROUP BY operator produce zero-dimensional or one-dimensional aggregates. Applications…

Mining frequent itemsets is at the core of mining association rules, and is by now quite well understood algorithmically. However, most algorithms for mining frequent itemsets assume that the main memory is large enough for the data…

Databases · Computer Science 2016-08-16 Gösta Grahne , Jianfei Zhu

Developers perform online sensemaking on a daily basis, such as researching and choosing libraries and APIs. Prior research has introduced tools that help developers capture information from various sources and organize it into structures…

Software Engineering · Computer Science 2022-02-07 Michael Xieyang Liu , Aniket Kittur , Brad A. Myers

Demand for enterprise data warehouse solutions to support real-time Online Transaction Processing (OLTP) queries as well as long-running Online Analytical Processing (OLAP) workloads is growing. Greenplum database is traditionally known as…

Quantum computing has shown promise for solving complex optimization problems in databases, such as join ordering and index selection. Prior work often submits formulated problems directly to black-box quantum or quantum-inspired solvers…

Databases · Computer Science 2026-02-17 Hanwen Liu , Ibrahim Sabek

Understanding micro-architectural behavior is profound in efficiently using hardware resources. Recent work has shown that, despite being aggressively optimized for modern hardware, in-memory online transaction processing (OLTP) systems…

Databases · Computer Science 2026-05-20 Utku Sirin , Anastasia Ailamaki

Multidimensional Big Data Analytics is an emerging area that marries the capabilities of OLAP with modern Big Data Analytics. Essentially, the idea is engrafting multidimensional models into Big Data analytics processes to gain into…

Databases · Computer Science 2024-07-29 Alfredo Cuzzocrea , Abderraouf Hafsaoui , Ismail Benlaredj

Given a set of multidimensional points, the skyline operator returns a set of potentially interesting points from such a dataset. This popular operator filters out a set of tuples that are not dominated by other ones, reducing the size of a…

Databases · Computer Science 2022-03-31 Claudio Migliorelli

In recent years, more people have seen their work depend on data manipulation tasks. However, many of these users do not have the background in programming required to write complex programs, particularly SQL queries. One way of helping…

Programming Languages · Computer Science 2024-02-02 Ricardo Brancas , Miguel Terra-Neves , Miguel Ventura , Vasco Manquinho , Ruben Martins

Summarized data analysis of graphs using OLAP (Online Analytical Processing) is very popular these days. However due to high dimensionality and large size, it is not easy to decide which data should be aggregated for OLAP analysis. Though…

Databases · Computer Science 2014-01-28 Kifayat Ullah Khan , Kamran Najeebullah , Waqas Nawaz , Young-Koo Lee

The predictive ability of database classifiers constructed with a network of interacting chemical oscillators is studied. Databases considered here are composed of records, where each record contains a number of parameters (predictors)…

Adaptation and Self-Organizing Systems · Physics 2018-09-05 L. Zommer , K. Gizynski , J. Gorecki

Data-centric AI has shed light on the significance of data within the machine learning (ML) pipeline. Recognizing its significance, academia, industry, and government departments have suggested various NLP data research initiatives. While…

Databases · Computer Science 2023-06-27 Eujeong Choi , Chanjun Park

As information becomes increasingly sizable for organizations to maintain the challenge of organizing data still remains. More importantly, the on-going process of analysing incoming data occurs on a continual basis and organizations should…

Databases · Computer Science 2021-05-19 Bryar A. Hassan , Shko M. Qader

Data cubes are used for analyzing large data sets usually contained in data warehouses. The most popular data cube tools use graphical user interfaces (GUI) to do the data analysis. Traditionally this was fine since data analysts were not…

Databases · Computer Science 2024-01-30 Sigmundur Vang , Christian Thomsen , Torben Bach Pedersen

The proliferation of modern data processing tools has given rise to open-source columnar data formats. The advantage of these formats is that they help organizations avoid repeatedly converting data to a new format for each application.…

Databases · Computer Science 2020-05-01 Tianyu Li , Matthew Butrovich , Amadou Ngom , Wan Shen Lim , Wes McKinney , Andrew Pavlo

The execution logs that are used for process mining in practice are often obtained by querying an operational database and storing the result in a flat file. Consequently, the data processing power of the database system cannot be used…

Databases · Computer Science 2017-06-27 Remco Dijkman , Juntao Gao , Paul Grefen , Arthur ter Hofstede