Deligiannakis AntoniosΔεληγιαννακης ΑντωνιοςTsakonas KonstantinosΤσακωνας Κωνσταντινος2024-10-312024-10-3120142014-09-26Konstantinos Tsakonas, "BucDoop: Bottom Up Computation of Iceberg Data Cubes with Hadoop", Master Thesis, School of Electronic and Computer Engineering, Technical University of Crete, Chania, Greece, 2014Κωνσταντίνος Τσάκωνας, "BucDoop: Bottom Up Computation of Iceberg Data Cubes with Hadoop", Μεταπτυχιακή Διατριβή, Σχολή Ηλεκτρονικών Μηχανικών και Μηχανικών Υπολογιστών, Πολυτεχνείο Κρήτης, Χανιά, Ελλάς, 2014https://dspace.library.tuc.gr/handle/123456789/252BucDoop: Bottom Up Computation of Iceberg Data Cubes With HadoopBig Data analysis has been a key matter during the recent years for the study of various phenomena in various science contexts as well as in business intelligence. Furthermore it appears for good reason to remain in focus for the future. Online Analytical processing methods and Data Cubes need to be further studied in order to reduce time used for efficient data analysis. This study introduces BucDoop, a novel algorithm that exploits the parallelism benefits of Hadoop Map Reduce, for the efficient iceberg data cube creation in reasonable time. BucDoop includes the use of the Bottom Up Computation (BUC) idea in the context of iceberg cube data lattice traversal, managing to reduce the amount of data handled with early pruning architecture and producing the portion of the cube needed for analysis purposes (iceberg problem). Experiments conducted herein present an efficient scalability factor for the creation of the iceberg cube for very big data, by-passing the data explosion and memory constraints problem while using only commodity hardware.1.9 megabytesenhttp://creativecommons.org/licenses/by/4.0/Algorithmic knowledge discoveryFactual data analysisKDD (Information retrieval)Knowledge discovery in dataKnowledge discovery in databasesMining, Datadata miningalgorithmic knowledge discoveryfactual data analysiskdd information retrievalknowledge discovery in dataknowledge discovery in databasesmining dataOnline Analytical Processing technologyolap technologyonline analytical processing technologyMap reduceHadoopBottom Up ComputationData aggregationIceberg cubeData cubeΜεταπτυχιακή Διατριβή