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Journal Articles
- 2015
[j34]Katja Moilanen
, Timo Niemi, Turkka Näppilä, Mikko Kuru:
A visual XML dataspace approach for satisfying ad hoc information needs. J. Assoc. Inf. Sci. Technol. 66(11): 2304-2320 (2015)- 2014
- [j33]Timo Niemi, Marko Junkkari, Kalervo Järvelin:
Concept-based query language approach to enterprise information systems. Enterp. Inf. Syst. 8(1): 26-66 (2014) - 2012
- [j32]Turkka Näppilä, Timo Niemi:
An approach for developing a schemaless XML dataspace profiling system. J. Inf. Sci. 38(3): 234-257 (2012) - 2011
- [j31]Turkka Näppilä, Katja Moilanen, Timo Niemi:
A query language for selecting, harmonizing, and aggregating heterogeneous XML data. Int. J. Web Inf. Syst. 7(1): 62-99 (2011) - 2010
- [j30]Janne Jämsen, Timo Niemi, Kalervo Järvelin:
Derived types in semantic association discovery. J. Intell. Inf. Syst. 35(2): 213-244 (2010) - 2009
- [j29]Timo Niemi, Turkka Näppilä, Kalervo Järvelin:
A relational data harmonization approach to XML. J. Inf. Sci. 35(5): 571-601 (2009) - 2008
- [j28]Turkka Näppilä, Kalervo Järvelin, Timo Niemi:
A tool for data cube construction from structurally heterogeneous XML documents. J. Assoc. Inf. Sci. Technol. 59(3): 435-449 (2008) - 2007
- [j27]Timo Niemi, Janne Jämsen:
A query language for discovering semantic associations, Part I: Approach and formal definition of query primitives. J. Assoc. Inf. Sci. Technol. 58(11): 1559-1568 (2007) - [j26]Timo Niemi, Janne Jämsen:
A query language for discovering semantic associations, Part II: sample queries and query evaluation. J. Assoc. Inf. Sci. Technol. 58(11): 1686-1700 (2007) - 2004
- [j25]Timo Niemi, Marko Junkkari, Kalervo Järvelin, Samu Viita:
Advanced query language for manipulating complex entities. Inf. Process. Manag. 40(6): 869-889 (2004) - 2003
- [j24]Timo Niemi, Lasse Hirvonen, Kalervo Järvelin:
Multidimensional Data Model and Query Language for Informetrics. J. Assoc. Inf. Sci. Technol. 54(10): 939-951 (2003) - 2002
- [j23]Timo Niemi, Marko Junkkari, Kalervo Järvelin:
Relational Deductive Object-Oriented Modeling (RDOOM) Approach for Finding, Representing and Integrating Application-Specific Concepts. Int. J. Softw. Eng. Knowl. Eng. 12(4): 415-451 (2002) - 2001
- [j22]Kalervo Järvelin, Jaana Kekäläinen, Timo Niemi:
ExpansionTool: Concept-Based Query Expansion and Construction. Inf. Retr. 4(3-4): 231-255 (2001) - 2000
- [j21]Kalervo Järvelin, Timo Niemi, Airi Salminen:
The visual query language CQL for transitive and relational computation. Data Knowl. Eng. 35(1): 39-51 (2000) - [j20]Timo Niemi, M. Christensen, Kalervo Järvelin:
Query language approach based on the deductive object-oriented database paradigm. Inf. Softw. Technol. 42(11): 777-792 (2000) - [j19]Kalervo Järvelin, Peter Ingwersen, Timo Niemi:
A user-oriented interface for generalised informetric analysis based on applying advanced data modelling techniques. J. Documentation 56(3): 250-278 (2000) - 1999
- [j18]Kalervo Järvelin, Timo Niemi:
Integration of complex objects and transitive relationships for information retrieval. Inf. Process. Manag. 35(5): 655-678 (1999) - 1996
- [j17]Timo Niemi, Kalervo Järvelin:
The processing strategy for the NF2 relational frc-interface. Inf. Softw. Technol. 38(1): 11-24 (1996) - 1995
- [j16]Timo Niemi, Kalervo Järvelin:
A Straightforward NF² Relational Interface with Applications in Information Retrieval. Inf. Process. Manag. 31(2): 215-231 (1995) - 1993
- [j15]Kalervo Järvelin, Timo Niemi:
An Entity-Based Approach to Query Processing in Relational Databases. Part I: Entity Type Representation. Data Knowl. Eng. 10: 117-150 (1993) - [j14]Kalervo Järvelin, Timo Niemi:
An Entity-Based Approach to Query Processing in Relational Databases. Part II: Entity Query Construction and Updating. Data Knowl. Eng. 10: 151-186 (1993) - [j13]Kalervo Järvelin, Timo Niemi:
Deductive Information Retrieval Based on Classifications. J. Am. Soc. Inf. Sci. 44(10): 557-578 (1993) - 1992
- [j12]Timo Niemi, Kalervo Järvelin:
Advanced Query Formulation in Deductive Databases. Inf. Process. Manag. 28(2): 181-200 (1992) - [j11]Timo Niemi, Kalervo Järvelin:
Operation-oriented query language approach for recursive queries - Part 1. Functional definition. Inf. Syst. 17(1): 49-75 (1992) - [j10]Timo Niemi, Kalervo Järvelin:
Operation-oriented query language approach for recursive queries - Part 2. Prototype implementation and its integration with relational databases. Inf. Syst. 17(1): 77-106 (1992) - 1991
- [j9]Timo Niemi, Kalervo Järvelin:
Prolog-Based Meta-Rules For Relational Database Representation and Manipulation. IEEE Trans. Software Eng. 17(8): 762-788 (1991) - 1988
- [j8]Timo Niemi:
An approach and its specification to data reformatting in data conversion. Inf. Syst. 13(1): 31-51 (1988) - 1987
- [j7]Kalervo Järvelin, Timo Niemi:
Advanced tools for data conversion and database cost modelling. Inf. Manag. 13(1): 11-24 (1987) - 1985
- [j6]Timo Niemi, Kalervo Järvelin:
Straightforward formalization of the relational model. Inf. Syst. 10(1): 65-76 (1985) - 1984
- [j5]Timo Niemi:
Specification of a Query Language by the Attribute Method. BIT 24(2): 171-186 (1984) - [j4]Timo Niemi:
Specification of data restructuring software based on the attribute method. Int. J. Parallel Program. 13(6): 425-460 (1984) - [j3]Timo Niemi, Kalervo Järvelin:
A Straightforward Formalization of the Relational Model. SIGMOD Rec. 14(1): 15-38 (1984) - 1983
- [j2]Timo Niemi:
Formal restructuring functions for hierarchical data bases. Int. J. Parallel Program. 12(6): 385-411 (1983) - [j1]Timo Niemi:
A seven-tuple representation for hierarchical data structures. Inf. Syst. 8(3): 151-157 (1983)
Conference and Workshop Papers
- 1996
- [c3]Kalervo Järvelin, Jaana Kristensen, Timo Niemi, Eero Sormunen, Heikki Keskustalo:
A Deductive Data Model for Query Expansion. SIGIR 1996: 235-243 - 1995
- [c2]Kalervo Järvelin, Timo Niemi:
An NF2 Relational Interface For Document Retrieval, Restructuring and Aggregation. SIGIR 1995: 102-110 - 1991
- [c1]Kalervo Järvelin, Timo Niemi:
Advanced Retrieval From Heterogeneous Fact Databases: Integration of Data Retrieval, Conversion, Aggregation and Deductive Techniques. SIGIR 1991: 173-182
Coauthor Index
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