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Clustering Big Data Streams in Apache Flink

Bitsakis Theodoros

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URIhttp://purl.tuc.gr/dl/dias/BEEF5DFC-1996-42F3-A0E6-3F3D10EB5CF3-
Identifierhttps://doi.org/10.26233/heallink.tuc.79102-
Languageen-
Extent62 pagesen
TitleClustering Big Data Streams in Apache Flinken
TitleΣυσταδοποίηση Μεγάλων Ροών Δεδομένων στο Apache Flinkel
CreatorBitsakis Theodorosen
CreatorΜπιτσακης Θεοδωροςel
Contributor [Thesis Supervisor]Deligiannakis Antoniosen
Contributor [Thesis Supervisor]Δεληγιαννακης Αντωνιοςel
Contributor [Committee Member]Garofalakis Minosen
Contributor [Committee Member]Γαροφαλακης Μινωςel
Contributor [Committee Member]Samoladas Vasilisen
Contributor [Committee Member]Σαμολαδας Βασιληςel
PublisherΠολυτεχνείο Κρήτηςel
PublisherTechnical University of Creteen
Academic UnitTechnical University of Crete::School of Electrical and Computer Engineeringen
Academic UnitΠολυτεχνείο Κρήτης::Σχολή Ηλεκτρολόγων Μηχανικών και Μηχανικών Υπολογιστώνel
Content SummaryWe live in the era of Big Data where massive amounts of information are generated continuously from numerous types of sources. Today’s goal is to apply techniques that take into consideration the volume, the variety and the velocity of the data, in order to gain insight that couldn’t be revealed with traditional data processing application software. Cluster analysis is a technique that groups a set of objects such that objects in the same group have similar properties. It is commonly used in the fields of machine learning, data mining, statistical data analysis, pattern recognition and bioinformatics. In this thesis, we propose a parallel implementation for the well-known unsupervised learning algorithm, StreamKM++, for clustering data streams in an online fashion. For the development phase, Apache Flink framework is chosen as a distributed streaming engine with high-throughput, low-latency and fault-tolerant computations over unbounded and bounded data streams. Initially, we introduce the theoretical background of the implemented algorithm and the distributed framework. Afterwards, we propose a parallel implementation which computes the set of cluster centers after the consumption of the input dataset. In addition to that, we propose an alternative implementation which produces periodically requests for the re-evaluation of cluster centers. Finally, we develop a program that exploits the Queryable State feature of Flink, in order to allow the user to query the most up-to-date values of the cluster centers. Experimental evaluation shows that by increasing the level of parallelism the running time droops significantly and at the same time the quality of the clustering gets slightly better.en
Type of ItemΔιπλωματική Εργασίαel
Type of ItemDiploma Worken
Licensehttp://creativecommons.org/licenses/by/4.0/en
Date of Item2018-10-11-
Date of Publication2018-
SubjectApache Flinken
SubjectData Stream Clusteringen
Bibliographic CitationTheodoros Bitsakis, "Clustering Big Data Streams in Apache Flink", Diploma Work, School of Electrical and Computer Engineering, Technical University of Crete, Chania, Greece, 2018en
Bibliographic CitationΘεόδωρος Μπιτσάκης, "Συσταδοποίηση Μεγάλων Ροών Δεδομένων στο Apache Flink", Διπλωματική Εργασία, Σχολή Ηλεκτρολόγων Μηχανικών και Μηχανικών Υπολογιστών, Πολυτεχνείο Κρήτης, Χανιά, Ελλάς, 2018el

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