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In this paper we study the problem of reducing the evaluation costs of queries on finite databases in presence of integrity constraints, by designing and materializing views. Given a database schema, a set of queries defined on the schema,…

Databases · Computer Science 2007-05-23 Rada Chirkova , Michael R. Genesereth

Lately, many companies are using Mobile Workforce Management technologies combined with information collected by sensors from mobile devices in order to improve their business processes. Even for small companies, the information that needs…

Databases · Computer Science 2020-01-15 Alejandro Cortiñas , Miguel R. Luaces , Tirso V. Rodeiro

We propose a simulated annealing algorithm specifically tailored to optimise total retrieval times in a multi-level warehouse under complex pre-batched picking constraints. Experiments on real data from a picker-to-parts order picking…

Artificial Intelligence · Computer Science 2017-04-05 Alexander Eckrot , Carina Geldhauser , Jan Jurczyk

With the wide development of databases in general and data warehouses in particular, it is important to reduce the tasks that a database administrator must perform manually. The aim of auto-administrative systems is to administrate and…

Databases · Computer Science 2008-09-17 Kamel Aouiche , Jérôme Darmont , Le Gruenwald

The graph database (GDB) is an increasingly common storage model for data involving relationships between entries. Beyond its widespread usage in database industries, the advantages of GDBs indicate a strong potential in constructing…

Databases · Computer Science 2025-11-17 Yanjun Yang , Adrian Wheeldon , Yihan Pan , Themis Prodromakis , Alex Serb

Visual instruction tuning is the key to building large vision language models~(LVLMs), which can greatly improve the task generalization and solving capabilities by learning a mixture of instruction data from diverse visual tasks. Previous…

Computation and Language · Computer Science 2024-10-11 Zikang Liu , Kun Zhou , Wayne Xin Zhao , Dawei Gao , Yaliang Li , Ji-Rong Wen

Distinguishing the importance of views has proven to be quite helpful for semi-supervised multi-view learning models. However, existing strategies cannot take advantage of semi-supervised information, only distinguishing the importance of…

Computer Vision and Pattern Recognition · Computer Science 2022-01-04 Yuyuan Yu , Guoxu Zhou , Haonan Huang , Shengli Xie , Qibin Zhao

Coordinated Multiple views (CMVs) are a visualization technique that simultaneously presents multiple visualizations in separate but linked views. There are many studies that report the advantages (e.g., usefulness for finding hidden…

Human-Computer Interaction · Computer Science 2022-04-21 Juyoung Oh , Chunggi Lee , Hwiyeon Kim , Kihwan Kim , Osang Kwon , Eric D. Ragan , Bum Chul Kwon , Sungahn Ko

In the last decade, key-value data storage systems have gained significantly more interest from academia and industry. These systems face numerous challenges concerning storage space- and read optimization. There exists a large potential…

Databases · Computer Science 2020-04-07 Martin Weise

With the wide development of databases in general and data warehouses in particular, it is important to reduce the tasks that a database administrator must perform manually. The idea of using data mining techniques to extract useful…

Databases · Computer Science 2007-05-23 Kamel Aouiche , Jérôme Darmont

In virtualized data centers, consolidation of Virtual Machines (VMs) on minimizing the number of total physical machines (PMs) has been recognized as a very efficient approach. This paper considers the energy-efficient consolidation of VMs…

Distributed, Parallel, and Cluster Computing · Computer Science 2016-04-18 Guozhong Li , Yaqiu Jiang , Wutong Yang , Chaojie Huang , Wenhong Tian

Views are known mechanisms for controlling access of data and for sharing data of different schemas. Despite long and intensive research on views in both the database community and the programming language community, we are facing…

The input data features set for many data driven tasks is high-dimensional while the intrinsic dimension of the data is low. Data analysis methods aim to uncover the underlying low dimensional structure imposed by the low dimensional hidden…

Machine Learning · Computer Science 2019-01-30 Moshe Salhov , Ofir Lindenbaum , Yariv Aizenbud , Avi Silberschatz , Yoel Shkolnisky , Amir Averbuch

In this research paper so as to handle Data in warehousing as well as reduce the wastage of data and provide a better results which takes more and more turn into a focal point of the data source business. Data warehousing and on-line…

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

Modern big data applications integrate data from various sources. As a result, these datasets may not satisfy perfect constraints, leading to sparse schema information and non-optimal query performance. The existing approach of PatchIndexes…

Databases · Computer Science 2021-02-15 Steffen Kläbe , Kai-Uwe Sattler , Stephan Baumann

Data Warehouses are structures with large amount of data collected from heterogeneous sources to be used in a decision support system. Data Warehouses analysis identifies hidden patterns initially unexpected which analysis requires great…

Artificial Intelligence · Computer Science 2016-02-16 Sami Naouali , Semeh Ben Salem

Astronomical researchers often think of analysis and visualization as separate tasks. In the case of high-dimensional data sets, though, interactive exploratory data visualization can give far more insight than an approach where data…

Instrumentation and Methods for Astrophysics · Physics 2015-06-05 Alyssa A. Goodman

Materialisation precomputes all consequences of a set of facts and a datalog program so that queries can be evaluated directly (i.e., independently from the program). Rewriting optimises materialisation for datalog programs with equality by…

Databases · Computer Science 2015-05-04 Boris Motik , Yavor Nenov , Robert Piro , Ian Horrocks

The data warehousing is becoming increasingly important in terms of strategic decision making through their capacity to integrate heterogeneous data from multiple information sources in a common storage space, for querying and analysis. So…

Databases · Computer Science 2012-05-04 Phuc V. Nguyen

We study the design of data publishing mechanisms that allow a collection of autonomous distributed datasources to collaborate to support queries. A common mechanism for data publishing is via views: functions that expose derived data to…

Logic in Computer Science · Computer Science 2020-06-30 Michael Benedikt , Pierre Bourhis , Louis Jachiet , Efthymia Tsamoura