Järvelin, Kalervo

name

• Järvelin, Kalervo

Authored works

• A query optimizer for a relational database system
• A systematic approach to modelling the costs of flat files
• A systematic methodology for relational query cost modelling
• Advanced retrieval from heterogeneous fact databases : integration of data retrieval, conversion, aggregation and deductive techniques
• Advanced tools for data base management systems
• Advanced tools for the database administrator
• Aineiston säilytys, konvertointi ja aitouden takaaminen digitaalisissa kirjastoissa, museoissa ja arkistoissa
• An approach to query cost modelling in numeric databases
• An NF [sup 2] relational interface with aggregation capability for document retrieval, restructuring and analysis
• Boolean predicate reduction for file access
• Cardinalities and attribute descriptions of result relations of relational algebra operations
• Content analysis of research articles in the library and information science
• Deductive information retrieval based on classifications
• Entity-based query construction for relational database access
• Finding functional dependencies for intermediate relations of relational algebra expressions
• General value conversion and aggregation operations : definition and integration with relational, entity-based and deductive data retrieval techniques
• Hajautettujen faktatietokantojen käytön yksinkertaistaminen : ongelmia ja lähestymistapoja
• Informetrics through advanced data management : complex object restructuring, data aggregation and transitive computation
• Integration of complex objects and transitive relationships for information retrieval
• On the maintenance costs of indexed files
• Selvitys yleisten kirjastojen työnjaosta sekä koulutustarpeesta ja -tarjonnasta
• Tekstitiedonhaku tietokannoista : johdatus periaatteisiin ja menetelmiin
• The implementation of the visual query language CQL for transitive computation
• User charge estimation in numeric online databases : a methodology

Works contributed to

• A deductive data model for thesaurus navigation and query expansion
• A form-based user interface for NF[sup 2] relations and its implementation strategy
• A meta-information approach to relational database representation and manipulation based on Prolog
• A straightforward formalization of the relational model
• Construction of data cubes from structurally heterogeneous XML document collections
• Constructor-oriented query processing strategy for NF[sup 2] relational queries : Part 1, Implementation on top of a relational database
• CQL: a QBE-like visual query language with recursion for data classification
• Deductive database queries based on transitive relationships and entity types
• Deductive object-oriented approach to systems analysis and its representation with the set theory
• Harmonization of XML-based data sources
• Multidimensional data model and query language for advances applications
• MUSIR : a retrieval model for music
• Operation-oriented query language approach for recursive queries
• Prolog-based implementation of a straightforward NF[sup 2] relational query interface
• Query language approach based on application specific concepts
• Query language approach for next generation information systems
• Task complexity affects information seeking and use
• The effect of anaphora and ellipsis resolution on proximity searching in a text database
• The effectiveness of a searching thesaurus in free-text searching of a full-text database
• The rule-based prototype implementation for the operation-oriented recursive query language approach and its integration with relational databases
• Using derived types in discovering and analysing semantic associations

Works about Järvelin, Kalervo