Heikki Keskustalo


1996

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A Deductive Data Model for Query Expansion
Kalervo Järvelin | Jaana Kristensen | Timo Niemi | Eero Sormunen | Heikki Keskustalo
Proceedings of the 19th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR'96, August 18-22, 1996, Zurich, Switzerland (Special Issue of the SIGIR Forum)

1999

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The Effects of Conjunction, Facet Structure, and Dictionary Combinations in Concept-Based Cross-Language Retrieval
Ari Pirkola | Heikki Keskustalo | Kalervo Järvelin
1999 Volume 1 Issue 3

2000

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Bilingual Tests with Swedish, Finnish and German Queries
Turid Hedlund | Heikki Keskustalo | Ari Pirkola | Mikko Sepponen | Kalervo Järvelin
Working Notes for CLEF 2000 Workshop co-located with the 4th European Conference on Digital Libraries (ECDL 2000), Lisbon, Portugal, September 21-22, 2000

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Bilingual Tests with Swedish, Finnish, and German Queries: Dealing with Morphology, Compound Words, and Query Structure
Turid Hedlund | Heikki Keskustalo | Ari Pirkola | Mikko Sepponen | Kalervo Järvelin
Cross-Language Information Retrieval and Evaluation, Workshop of Cross-Language Evaluation Forum, CLEF 2000, Lisbon, Portugal, September 21-22, 2000, Revised Papers

2001

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Utaclir @ CLEF 2001 - Effects of Compound Splitting and N-Gram Techniques
Turid Hedlund | Heikki Keskustalo | Ari Pirkola | Eija Airio | Kalervo Järvelin
Evaluation of Cross-Language Information Retrieval Systems, Second Workshop of the Cross-Language Evaluation Forum, CLEF 2001, Darmstadt, Germany, September 3-4, 2001, Revised Papers

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UTACLIR @ CLEF 2001: New Features for Handling Compound Words and Untranslatable Proper Names
Turid Hedlund | Heikki Keskustalo | Ari Pirkola | Eija Airio | Kalervo Järvelin
Working Notes for CLEF 2001 Workshop co-located with the 5th European Conference on Digital Libraries (ECDL 2001), Darmstadt, Germany, September 3-4, 2001

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Dictionary-Based Cross-Language Information Retrieval: Problems, Methods, and Research Findings
Ari Pirkola | Turid Hedlund | Heikki Keskustalo | Kalervo Järvelin
2001 Volume 4 Issue 3-4

2002

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UTACLIR -: general query translation framework for several language pairs
Heikki Keskustalo | Turid Hedlund | Eija Airio
SIGIR 2002: Proceedings of the 25th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, August 11-15, 2002, Tampere, Finland

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UTACLIR @ CLEF 2002: Towards a Unified Translation Process Model
Eija Airio | Heikki Keskustalo | Turid Hedlund | Ari Pirkola
Working Notes for CLEF 2002 Workshop co-located with the 6th European Conference on Digital Libraries (ECDL 2002), Rome, Italy, September 19-20, 2002

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Bilingual and Multilingual Runs with a Unified Process
Eija Airio | Heikki Keskustalo | Turid Hedlund | Ari Pirkola
Advances in Cross-Language Information Retrieval, Third Workshop of the Cross-Language Evaluation Forum, CLEF 2002. Rome, Italy, September 19-20, 2002. Revised Papers

2003

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Non-adjacent Digrams Improve Matching of Cross-Lingual Spelling Variants
Heikki Keskustalo | Ari Pirkola | Kari Visala | Erkka Leppänen | Kalervo Järvelin
String Processing and Information Retrieval, 10th International Symposium, SPIRE 2003, Manaus, Brazil, October 8-10, 2003, Proceedings

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Fuzzy translation of cross-lingual spelling variants
Ari Pirkola | Jarmo Toivonen | Heikki Keskustalo | Kari Visala | Kalervo Järvelin
SIGIR 2003: Proceedings of the 26th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, July 28 - August 1, 2003, Toronto, Canada

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Multilingual Experiments of UTA at CLEF 2003: The Impact of Different Merging Strategies and Word Normalizing Tools
Eija Airio | Heikki Keskustalo | Turid Hedlund | Ari Pirkola
Working Notes for CLEF 2003 Workshop co-located with the 7th European Conference on Digital Libraries (ECDL 2003), Trondheim, Norway, August 21-22, 2003

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The Impact of Word Normalization Methods and Merging Strategies on Multilingual IR
Eija Airio | Heikki Keskustalo | Turid Hedlund | Ari Pirkola
Comparative Evaluation of Multilingual Information Access Systems, 4th Workshop of the Cross-Language Evaluation Forum, CLEF 2003, Trondheim, Norway, August 21-22, 2003, Revised Selected Papers

2004

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Dictionary-Based Cross-Language Information Retrieval: Learning Experiences from CLEF 2000-2002
Turid Hedlund | Eija Airio | Heikki Keskustalo | Raija Lehtokangas | Ari Pirkola | Kalervo Järvelin
2004 Volume 7 Issue 1-2

2005

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Dictionary-Based CLIR Loses Highly Relevant Documents
Raija Lehtokangas | Heikki Keskustalo | Kalervo Järvelin
Advances in Information Retrieval, 27th European Conference on IR Research, ECIR 2005, Santiago de Compostela, Spain, March 21-23, 2005, Proceedings

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Translating cross-lingual spelling variants using transformation rules
Jarmo Toivonen | Ari Pirkola | Heikki Keskustalo | Kari Visala | Kalervo Järvelin
2005 Volume 41 Issue 4

2006

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The Effects of Relevance Feedback Quality and Quantity in Interactive Relevance Feedback: A Simulation Based on User Modeling
Heikki Keskustalo | Kalervo Järvelin | Ari Pirkola
Advances in Information Retrieval, 28th European Conference on IR Research, ECIR 2006, London, UK, April 10-12, 2006, Proceedings

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Experiments with dictionary-based CLIR using graded relevance assessments: Improving effectiveness by pseudo-relevance feedback
Raija Lehtokangas | Heikki Keskustalo | Kalervo Järvelin
2006 Volume 9 Issue 4

2007

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Creating and exploiting a comparable corpus in cross-language information retrieval
Tuomas Talvensaari | Jorma Laurikkala | Kalervo Järvelin | Martti Juhola | Heikki Keskustalo
2007 Volume 25 Issue 1

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Frequency-based identification of correct translation equivalents (FITE) obtained through transformation rules
Ari Pirkola | Jarmo Toivonen | Heikki Keskustalo | Kalervo Järvelin
2007 Volume 26 Issue 1

2008

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A Novel Implementation of the FITE-TRT Translation Method
Aki Loponen | Ari Pirkola | Kalervo Järvelin | Heikki Keskustalo
Advances in Information Retrieval , 30th European Conference on IR Research, ECIR 2008, Glasgow, UK, March 30-April 3, 2008. Proceedings

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Intuition-supporting visualization of user's performance based on explicit negative higher-order relevance
Heikki Keskustalo | Kalervo Järvelin | Ari Pirkola | Jaana Kekäläinen
Proceedings of the 31st Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2008, Singapore, July 20-24, 2008

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Evaluating the effectiveness of relevance feedback based on a user simulation model: effects of a user scenario on cumulated gain value
Heikki Keskustalo | Kalervo Järvelin | Ari Pirkola
2008 Volume 11 Issue 3

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Experiments with transitive dictionary translation and pseudo-relevance feedback using graded relevance assessments
Raija Lehtokangas | Heikki Keskustalo | Kalervo Järvelin
2008 Volume 59 Issue 3

2009

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Test Collection-Based IR Evaluation Needs Extension toward Sessions - A Case of Extremely Short Queries
Heikki Keskustalo | Kalervo Järvelin | Ari Pirkola | Tarun Sharma | Marianne Lykke
Information Retrieval Technology, 5th Asia Information Retrieval Symposium, AIRS 2009, Sapporo, Japan, October 21-23, 2009. Proceedings

2011

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Simulating Simple and Fallible Relevance Feedback
Feza Baskaya | Heikki Keskustalo | Kalervo Järvelin
Advances in Information Retrieval - 33rd European Conference on IR Research, ECIR 2011, Dublin, Ireland, April 18-21, 2011. Proceedings

2012

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Time drives interaction: simulating sessions in diverse searching environments
Feza Baskaya | Heikki Keskustalo | Kalervo Järvelin
The 35th International ACM SIGIR conference on research and development in Information Retrieval, SIGIR '12, Portland, OR, USA, August 12-16, 2012

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Cumulated Relative Position: A Metric for Ranking Evaluation
Marco Angelini | Nicola Ferro | Kalervo Järvelin | Heikki Keskustalo | Ari Pirkola | Giuseppe Santucci | Gianmaria Silvello
Information Access Evaluation. Multilinguality, Multimodality, and Visual Analytics - Third International Conference of the CLEF Initiative, CLEF 2012, Rome, Italy, September 17-20, 2012. Proceedings

2013

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Modeling behavioral factors ininteractive information retrieval
Feza Baskaya | Heikki Keskustalo | Kalervo Järvelin
22nd ACM International Conference on Information and Knowledge Management, CIKM'13, San Francisco, CA, USA, October 27 - November 1, 2013

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Cumulated Relative Position: A Metric for Ranking Evaluation
Marco Angelini | Nicola Ferro | Kalervo Järvelin | Heikki Keskustalo | Ari Pirkola | Giuseppe Santucci | Gianmaria Silvello
Proceedings of the 4th Italian Information Retrieval Workshop, Pisa, Italy, January 16-17, 2013

2015

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Searching and Stopping: An Analysis of Stopping Rules and Strategies
David Maxwell | Leif Azzopardi | Kalervo Järvelin | Heikki Keskustalo
Proceedings of the 24th ACM International Conference on Information and Knowledge Management, CIKM 2015, Melbourne, VIC, Australia, October 19 - 23, 2015

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An Initial Investigation into Fixed and Adaptive Stopping Strategies
David Maxwell | Leif Azzopardi | Kalervo Järvelin | Heikki Keskustalo
Proceedings of the 38th International ACM SIGIR Conference on Research and Development in Information Retrieval, Santiago, Chile, August 9-13, 2015

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Exploring Behavioral Dimensions in Session Effectiveness
Teemu Pääkkönen | Kalervo Järvelin | Jaana Kekäläinen | Heikki Keskustalo | Feza Baskaya | David Maxwell | Leif Azzopardi
Experimental IR Meets Multilinguality, Multimodality, and Interaction - 6th International Conference of the CLEF Association, CLEF 2015, Toulouse, France, September 8-11, 2015, Proceedings

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Task-Based Information Interaction Evaluation: The Viewpoint of Program Theory
Kalervo Järvelin | Pertti Vakkari | Paavo Arvola | Feza Baskaya | Anni Järvelin | Jaana Kekäläinen | Heikki Keskustalo | Sanna Kumpulainen | Miamaria Saastamoinen | Reijo Savolainen | Eero Sormunen
2015 Volume 33 Issue 1

2016

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The twist measure for IR evaluation: Taking user's effort into account
Nicola Ferro | Gianmaria Silvello | Heikki Keskustalo | Ari Pirkola | Kalervo Järvelin
2016 Volume 67 Issue 3

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Information retrieval from historical newspaper collections in highly inflectional languages: A query expansion approach
Anni Järvelin | Heikki Keskustalo | Eero Sormunen | Miamaria Saastamoinen | Kimmo Kettunen
2016 Volume 67 Issue 12

2017

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Validating simulated interaction for retrieval evaluation
Teemu Pääkkönen | Jaana Kekäläinen | Heikki Keskustalo | Leif Azzopardi | David Maxwell | Kalervo Järvelin
2017 Volume 20 Issue 4

2020

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Historical reasoning in authentic research tasks: Mapping cognitive and document spaces
Sanna Kumpulainen | Heikki Keskustalo | Boyang Zhang | Kostas Stefanidis
2020 Volume 71 Issue 2