Titlebook: Data Management Technologies and Applications; 4th International Co Markus Helfert,Andreas Holzinger,Chiara Francalanc Conference proceedin

庄严

Training Model Trees on Data Streams with Missing Values,ing predictive analysis on data streams. However, missing values within the data streams is an issue during the training phase of a model tree. In this article, we compare different approaches to deal with incomplete streams in order to measure their impact on the resulting model tree in terms of ac

Vertical

,Hypergraph-Based Access Control Using Organizational Models and Formal Language Expressions – ,,onally, such assignments are based on total enumeration, with the consequence that constant effort has to be put into maintaining the assignments. This problem still persists when using abstraction layers, such as group and role concepts, e.g. Access Control Matrix and Role-Based Access Control. Rol

Increment

宿醉

性满足

Training Model Trees on Data Streams with Missing Values,curacy. Moreover, we propose an online method to estimate and adjust the missing values during the stream processing. To show the results, a prototype has been developed and tested on several benchmarks.

A精确的

Conference proceedings 2016 in Colmar, France, in July 2015..The 9 revised full papers were carefully reviewed andselected from 70 submissions. The papers deal with the following topics:databases, data warehousing, data mining, data management, data security,knowledge and information systems and technologies; advanced applica

escalate

https://doi.org/10.1007/978-3-030-05138-9 second variant inspired by relevance frequency. We performed extensive experiments to compare these novel schemes to known ones, observing top performances in text categorization by topic and satisfactory results in sentiment classification.

才能

Jorge I. Euán Avila,Alfonso Cuevas Jiménezport system. We propose the ChoremOLAP system that enriches SOLAP maps with chorems. We apply our proposal to agricultural data analysis, since both chorems and SOLAP have been rarely used in this application domain. Using open data provided by the FAO, we show how ChoremOLAP is well adapted in the agricultural context.

Metamorphosis

Coastal-Offshore Ecosystem Interactionsnology..The paper proposes a new approach to data warehousing in configurable information systems which is based on the action abstraction and NoSQL technology. Warehouse model and basic principles of its functioning are presented.

Allege

A Comparison of Term Weighting Schemes for Text Classification and Sentiment Analysis with a Superv second variant inspired by relevance frequency. We performed extensive experiments to compare these novel schemes to known ones, observing top performances in text categorization by topic and satisfactory results in sentiment classification.