Omar Boussaid

Omar Boussaid is an associate professor in computer science at the School of Economics and Management of the University of Lyon 2, France. He received his Ph.D. degree in computer science from the University of Lyon 1, France in 1988. Since 1995, he is the director of the Master Computer Science Engineering for Decision and Economic Evaluation of the University of Lyon 2. He is a member of the Decision Support Databases research group within the ERIC Laboratory. His main research subjects are data warehousing, multidimensional databases and OLAP. His current research concerns complex data warehousing, XML warehousing, data mining-based multidimensional modelling, OLAP and data mining combining and mining metadata in RDF form.

Publications

Design and Implementation of Active Stream Data Warehouses
Design and Implementation of Active Stream Data Warehouses
Sandro Bimonte, Omar Boussaid, Michel Schneider, Fabien Ruelle. © 2021. 24 pages.
In the era of Big Data, more and more stream data is available. In the same way, Decision Support Systems (DSS) tools, such as data warehouses and alert systems, become more and...
An Improved Sentiment Analysis Approach to Detect Radical Content on Twitter
An Improved Sentiment Analysis Approach to Detect Radical Content on Twitter
kamel Ahsene Djaballah, Kamel Boukhalfa, Omar Boussaid, Yassine Ramdane. © 2021. 22 pages.
Social networks are used by terrorist groups and people who support them to propagate their ideas, ideologies, or doctrines and share their views on terrorism. To analyze tweets...
Big Data Warehouse: Building Columnar NoSQL OLAP Cubes
Big Data Warehouse: Building Columnar NoSQL OLAP Cubes
Khaled Dehdouh, Omar Boussaid, Fadila Bentayeb. © 2020. 24 pages.
In the Big Data warehouse context, a column-oriented NoSQL database system is considered as the storage model which is highly adapted to data warehouses and online analysis....
Tag's Depth-Based Expert Profiling Using a Topic Modeling Technique
Tag's Depth-Based Expert Profiling Using a Topic Modeling Technique
Saida Kichou, Omar Boussaid, Abdelkrim Meziane. © 2020. 19 pages.
Expert finding and expert profiling are two important tasks for organizations, researchers, and work seekers. This importance can also be seen in online communities especially...
Design and Implementation of Active Stream Data Warehouses
Design and Implementation of Active Stream Data Warehouses
Sandro Bimonte, Omar Boussaid, Michel Schneider, Fabien Ruelle. © 2019. 21 pages.
In the era of Big Data, more and more stream data is available. In the same way, Decision Support Systems (DSS) tools, such as data warehouses and alert systems, become more and...
TLabel: A New OLAP Aggregation Operator in Text Cubes
TLabel: A New OLAP Aggregation Operator in Text Cubes
Lamia Oukid, Omar Boussaid, Nadjia Benblidia, Fadila Bentayeb. © 2016. 21 pages.
Data Warehousing technologies and On-Line Analytical Processing (OLAP) feature a wide range of techniques for the analysis of structured data. However, these techniques are...
Business Intelligence Indicators: Types, Models and Implementation
Business Intelligence Indicators: Types, Models and Implementation
Sandro Bimonte, Michel Schneider, Omar Boussaid. © 2016. 24 pages.
Nowadays, more and more data are available for decisional analysis and decision-making based on different indicators. Although different decision-making technologies have been...
An Objective Function for Evaluation of Fragmentation Schema in Data Warehouse
An Objective Function for Evaluation of Fragmentation Schema in Data Warehouse
Hacène Derrar, Omar Boussaid, Mohamed Ahmed-Nacer. © 2015. 9 pages.
Contextualized Text OLAP Based on Information Retrieval
Contextualized Text OLAP Based on Information Retrieval
Lamia Oukid, Nadjia Benblidia, Fadila Bentayeb, Ounas Asfari, Omar Boussaid. © 2015. 21 pages.
Current data warehousing and On-Line Analytical Processing (OLAP) systems are not yet particularly appropriate for textual data analysis. It is therefore crucial to develop a new...
Efficient Compression and Storage of XML OLAP Cubes
Efficient Compression and Storage of XML OLAP Cubes
Doulkifli Boukraa, Mohammed Amin Bouchoukh, Omar Boussaid. © 2015. 25 pages.
In this paper, the authors present an approach to efficiently compress XML OLAP cubes. They propose a multidimensional snowflake schema of the cube as the basic physical...
Towards Collaborative Multidimensional Query Recommendation with Triadic Association Rules
Towards Collaborative Multidimensional Query Recommendation with Triadic Association Rules
Sid Ali Selmane, Omar Boussaid, Fadila Bentayeb. © 2015. 19 pages.
This paper describes a new personalization process for decisional queries through a new approach based on triadic association rules mining. This process exploits the decision...
Spatial OLAP and Map Generalization: Model and Algebra
Spatial OLAP and Map Generalization: Model and Algebra
Sandro Bimonte, Michela Bertolotto, Jérôme Gensel, Omar Boussaid. © 2012. 28 pages.
Map generalization can be used as a central component of Spatial Decision Support Systems to provide a simplified and more readable cartographic visualization of geographic...
Dynamic Workload for Schema Evolution in Data Warehouses: A Performance Issue
Dynamic Workload for Schema Evolution in Data Warehouses: A Performance Issue
Fadila Bentayeb, Cécile Favre, Omar Boussaid. © 2010. 19 pages.
A data warehouse allows the integration of heterogeneous data sources for identified analysis purposes. The data warehouse schema is designed according to the available data...
Multidimensional Modeling of Complex Data
Multidimensional Modeling of Complex Data
Omar Boussaid, Doulkifli Boukraa. © 2009. 7 pages.
While the classical databases aimed in data managing within enterprises, data warehouses help them to analyze data in order to drive their activities (Inmon, 2005). The data...
A Survey of Data Warehouse Model Evolution
A Survey of Data Warehouse Model Evolution
Cécile Favre, Fadila Bentayeb, Omar Boussaid. © 2009. 8 pages.
A data warehouse allows the integration of heterogeneous data sources for analysis purposes. One of the key points for the success of the data warehousing process is the design...
Modeling XML Warehouses for Complex Data: The New Issues
Modeling XML Warehouses for Complex Data: The New Issues
Doulkifli Boukraa, Riadh Ben Messaoud, Omar Boussaid. © 2009. 21 pages.
Current data warehouses deal for the most part with numerical data. However, decision makers need to analyze data presented in all formats which one can qualify as complex data....
OLEMAR: An Online Environment for Mining Association Rules in Multidimensional Data
OLEMAR: An Online Environment for Mining Association Rules in Multidimensional Data
Riadh Ben Messaoud, Sabine Loudcher Rabaséda, Rokia Missaoui, Omar Boussaid. © 2008. 35 pages.
Data warehouses and OLAP (online analytical processing) provide tools to explore and navigate through data cubes in order to extract interesting information under different...
Processing and Managing Complex Data for Decision Support
Processing and Managing Complex Data for Decision Support
Jérôme Darmont, Omar Boussaid. © 2006. 433 pages.
In many decision support fields the data that is exploited tends to be more and more complex. To take this phenomenon into account, classical architectures of data warehouses or...
A Data Mining-Based OLAP Aggregation of Complex Data: Application on XML Documents
A Data Mining-Based OLAP Aggregation of Complex Data: Application on XML Documents
Riadh Ben Messaoud, Omar Boussaid, Sabine Loudcher Rabaséda. © 2006. 26 pages.
Nowadays, most organizations deal with complex data that have different formats and come from different sources. The XML formalism is evolving and becoming a promising solution...