'Data complexity' presentation slideshows

Trident

736 views • 49 slides

CSE 544: Lecture 11 Theory

458 views • 38 slides

On the Memory Requirements of XPath Evaluation over XML Streams

On the Memory Requirements of XPath Evaluation over XML Streams. Ziv Bar-Yossef Marcus Fontoura Vanja Josifovski IBM Almaden Research Center. Preliminaries: XML. x 0. < conference > < name > PODS </ name > < speaker > < name > Josifovski </ name >

437 views • 37 slides

Xpath Query Evaluation

Xpath Query Evaluation. Goal. Evaluating an Xpath query against a given document To find all matches We will also consider the use of types Complexity is important Huge Documents. Data complexity vs. Combined Complexity. Two inputs to the query evaluation problem

500 views • 33 slides

Lecture 10: Query Complexity

Lecture 10: Query Complexity. Thursday, February 1, 2001. Safe-FO = Relational Algebra. Recall the 5 operators in the relational algebra: U, -, x, s , P Theorem . A query is expressible in safe-FO iff it is expressible in the relational algebra. Proof.

295 views • 29 slides

283 views • 28 slides

An Ontology for Marine Observables

382 views • 26 slides

Chapter 15 Product Metrics for Software

258 views • 24 slides

Availability & Effective Uses of Data

234 views • 23 slides

Nursing Home Coding

491 views • 20 slides

Query Models

261 views • 19 slides

281 views • 19 slides

10. Computational Complexity

10. Computational Complexity. For a fixed library of programs, users would be interested in data complexity. 10.2 Complexity of Relational Algebra. 10.3 Complexity of Datalog. 10.4 Complexity of Stratified Datalog.

237 views • 5 slides

1u*tu

1u*tu. (t'--*. ol'thc IntcrnationalNlultiClonlctcuoc linginccrs and (lomputcr Sr:icntists. 2010 Vol I,. of. I)r'ooccdings. . . il'll.l(ls 2010, Ir'Iarch17 - 19,2010. Ibng I'orrg. A Novel K-MeansBasedClusteringAlgorithm. for Hish DirnensionalData Sets.

120 views • 1 slides