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Filtering by: Creator Fox, David S. Academic Affiliation Electrical Engineering and Computer Science Contributor Ghadakchi, Vahid

Collaborative Online Learning For Join Processing

Creator:

Xie, Mian

Abstract:

Relational binary operators, such as join, are arguably the most costly and frequently used operations in relational data systems. In many join algorithms, the majority of the process time is spent on scanning and attempting to join the parts of the relations that do not satisfy the join condition and...

Resource Type:

Capstone Project

Full Text:

queries. . . . . . . . . . 39 LIST OF TABLES Table Page 5.1 Information on TPC-H Relations(s=1
Learning to Estimate Multi-Relation Aggregation Functions

Creator:

Jadhav, Rashmi Suresh

Abstract:

Multi-relation aggregation queries process the join operator before computing the aggregation function. This join is arguably the most costly operation since traditional join algorithms spend majority of their time trying to join the parts of the relations that do not generate any output tuples. This causes slow response times with...

Resource Type:

Masters Thesis

Full Text:

outer relation R with an inner relation S as R ./ S. The outer relation R is scanned and for each tuple
Improving the Effectiveness of Answering Keyword Queries Using Effective Subsets

Creator:

Khodadadi, Abtin

Abstract:

Most database users do not know formal query languages, such as SQL, and prefer to express their information needs using usable query languages, such as keyword queries. Keyword queries, however, are inherently ambiguous and challenging for the database systems to understand and answer effectively. We propose a novel approach to...

Resource Type:

Capstone Project

Full Text:

score in a tuple set is s, we remove all the tuples with a score less than s 2 from the tuple set