Sökning: "OLAP cubes"

Visar resultat 1 - 5 av 6 uppsatser innehållade orden OLAP cubes.

  1. 1. Optimisation of Ad-hoc analysis of an OLAP cube using SparkSQL

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Avdelningen för beräkningsvetenskap

    Författare :Milja Aho; [2017]
    Nyckelord :;

    Sammanfattning : An Online Analytical Processing (OLAP) cube is a way to represent a multidimensional database. The multidimensional database often uses a star schema and populates it with the data from a relational database. LÄS MER

  3. 2. BigDataCube: Distributed Multidimensional Data Cube Over Apache Spark : An OLAP framework that brings Multidimensional Data Analysis to modern Distributed Storage Systems

    Master-uppsats, KTH/Skolan för informations- och kommunikationsteknik (ICT)

    Författare :Pradeep Peiris Weherage; [2017]
    Nyckelord :;

    Sammanfattning : Multidimensional Data Analysis is an important subdivision of Data Analytic paradigm. Data Cube provides the base abstraction for Multidimensional Data Analysis and helps in discovering useful insights of a dataset. LÄS MER

  4. 3. MDX on Hadoop : A case study on OLAP for Big Data

    Magister-uppsats, KTH/Skolan för informations- och kommunikationsteknik (ICT)

    Författare :Jakob Stengård; [2015]
    Nyckelord :;

    Sammanfattning : Online Analytical Processing (OLAP) is a method used for analyzing data within business intelligence and data mining, using n-dimensional hyper cubes. These cubes stores the aggregates of multiple dimensions of the data, and can traditionally be computed from a dimensional relational model in SQL databases, known as a star schema. LÄS MER

  5. 4. Flexible Data Extraction for Analysis using Multidimensional Databases and OLAP Cubes

    M1-uppsats, KTH/Data- och elektroteknik

    Författare :Robert Jernberg; Tobias Hultgren; [2013]
    Nyckelord :OLAP; cube; multidimensional database; business intelligence; data warehouse; SSAS;

    Sammanfattning : Bright is a company that provides customer and employee satisfaction surveys, and uses this information to provide feedback to their customers. Data from the surveys are stored in a relational database and information is generated both by directly querying the database as well as doing analysis on extracted data. LÄS MER

  7. 5. Interactive visualization of financial data : Development of a visual data mining tool

    Uppsats för yrkesexamina på avancerad nivå, Institutionen för informationsteknologi

    Författare :Joakim Saltin; [2012]
    Nyckelord :visual data mining; visualization; data warehousing; software engineering; materialized views; OLAP; OLAP cubes; greedy algorithm; high-performance query;

    Sammanfattning : In this project, a prototype visual data mining tool was developed, allowing users to interactively investigate large multi-dimensional datasets visually (using 2D visualization techniques) using so called drill-down, roll-up and slicing operations. The project included all steps of the development, from writing specifications and designing the program to implementing and evaluating it. LÄS MER