PhD Qualifying Examination
Title: "A Survey on Multi-Dimensional Histograms"
Mr. Christos KOUTRAS
Over the past few years the amount of information being processed by data
management systems has grown exponentially, due to various technological
advancements. Thus, a lot of research works have been focused on
constructing novel summarization structures that make it possible to
handle large datasets with the compromise of estimation errors when it
comes to answering queries on them. One of the most popular such
structures are histograms. The scope of this survey is to present and
describe a majority of proposed histogram construction algorithms in the
literature, as well as how they enable eﬃcient and accurate estimation.
Furthermore, we focus on the case where multiple dimensions are considered
rather than one-dimensional techniques, which we brieﬂy describe.
Finally, we distinguish the case of 2D histograms for summarizing spatial
data, since alternative histogram methods were widely applied for managing
objects in 2D space.
Date: Friday, 8 December 2017
Time: 2:00pm - 4:00pm
Venue: Room 5510
Committee Members: Prof. Dimitris Papadias (Supervisor)
Dr. Raymond Wong (Chairperson)
Dr. Qiong Luo
Dr. Ke Yi
**** ALL are Welcome ****