Data cube is a key element in supporting fast OLAP. Traditionally, an aggregate function is used to compute the values in data cubes. In this paper, we extend the notion of data cubes with a new perspective. Instead of using an aggregate function, we propose to build data cubes using the skyline operation as the “aggregate function.” Data cubes built in this way are called “group-by skyline cubes” and can support a variety of analytical tasks. Nevertheless, there are several challenges in implementing group-by skyline cubes in data warehouses: 1) the skyline operation is computational intensive, 2) the skyline operation is holistic, and 3) a group-by skyline cube contains both grouping and skyline dimensions, rendering it infeasible to precompute all cuboids in advance. This paper gives details on how to store, materialize, and query such cubes.

Did you like this research project?

To get this research project Guidelines, Training and Code... Click Here

PROJECT TITLE : On the Security of Key Extraction From Measuring Physical Quantities - 2016 ABSTRACT: Key extraction via measuring a physical quantity could be a category of information theoretic key exchange protocols
PROJECT TITLE : Measuring Improvement When Using HUB Formats to Implement Floating-Point Systems Under Round-to-Nearest - 2016 ABSTRACT: This paper analyzes the advantages of using half-unit-biased (HUB) formats to implement
PROJECT TITLE :Measuring the Diversity of a Test Set With Distance EntropyABSTRACT:Most existing metrics that we decision white-box metrics, such as coverage metrics, need white-box info, like program structure info, and historical
PROJECT TITLE :Putting a Number on Pain: Technology Has an Increased Role in Measuring Subjective Symptoms in Clinical TrialsABSTRACT:WiFi and cellular networks are pervasively provided for mobile Web access. Though most existing
PROJECT TITLE :Heterodyne System for Measuring Frequency Response of Photodetectors in Ultrasonic ApplicationsABSTRACT:The heterodyne interferometer using acousto-optic modulation is presented to live the frequency response of

Ready to Complete Your Academic MTech Project Work In Affordable Price ?

Project Enquiry