Ari Pirkola

According to our database, Ari Pirkola authored at least 45 papers between 1996 and 2016.

Collaborative distances:

• Dijkstra number of five.
• Erdős number of four.

2016

The twist measure for IR evaluation: Taking user's effort into account.

Nicola Ferro, Gianmaria Silvello, Heikki Keskustalo, Ari Pirkola, Kalervo Järvelin

J. Assoc. Inf. Sci. Technol., 2016

2013

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, 2013

2012

Real-Text Dictionary for Topic-Specific Web Searching.

Ari Pirkola

Proceedings of the Web Information Systems and Technologies - 8th International Conference, 2012

Topic-specific Web Searching based on a Real-text Dictionary.

Ari Pirkola

Proceedings of the WEBIST 2012 - Proceedings of the 8th International Conference on Web Information Systems and Technologies, Porto, Portugal, 18, 2012

2011

Constructing Topic-specific Search Keyphrase Suggestion Tools for Web Information Retrieval.

Ari Pirkola

Proceedings of the Information und Wissen: global, 2011

2010

Addressing the limited scope problem of focused crawling using a result merging approach.

Ari Pirkola, Tuomas Talvensaari

Proceedings of the 2010 ACM Symposium on Applied Computing (SAC), 2010

A Topic-Specific Web Search System Focusing on Quality Pages.

Ari Pirkola, Tuomas Talvensaari

Proceedings of the Research and Advanced Technology for Digital Libraries, 2010

2009

The effectiveness of Web search engines to index new sites from different countries.

Ari Pirkola

Inf. Res., 2009

Effects of Crawling Strategies on the Performance of Focused Web Crawling.

Ari Pirkola, Tuomas Talvensaari

Proceedings of the WEBIST 2009, 2009

Evaluating Global Link Structure of the Web for Focused Crawling in the Genomics and Genetics Domains.

Ari Pirkola, Tuomas Talvensaari

Proceedings of the Second International Conference on Health Informatics, 2009

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

Proceedings of the Information Retrieval Technology, 2009

2008

Extracting variant forms of chemical names for information retrieval.

Ari Pirkola

Inf. Res., 2008

Focused web crawling in the acquisition of comparable corpora.

Tuomas Talvensaari, Ari Pirkola, Kalervo Järvelin, Martti Juhola, Jorma Laurikkala

Inf. Retr., 2008

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

Inf. Retr., 2008

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, 2008

A Novel Implementation of the FITE-TRT Translation Method.

Aki Loponen, Ari Pirkola, Kalervo Järvelin, Heikki Keskustalo

Proceedings of the Advances in Information Retrieval , 2008

2007

Frequency-based identification of correct translation equivalents (FITE) obtained through transformation rules.

Ari Pirkola, Jarmo Toivonen, Heikki Keskustalo, Kalervo Järvelin

ACM Trans. Inf. Syst., 2007

2006

FITE-TRT: a high quality translation technique for OOV words.

Ari Pirkola, Jarmo Toivonen, Heikki Keskustalo, Kalervo Järvelin

Proceedings of the 2006 ACM Symposium on Applied Computing (SAC), 2006

The Effects of Relevance Feedback Quality and Quantity in Interactive Relevance Feedback: A Simulation Based on User Modeling.

Heikki Keskustalo, Kalervo Järvelin, Ari Pirkola

Proceedings of the Advances in Information Retrieval, 2006

2005

Translating cross-lingual spelling variants using transformation rules.

Jarmo Toivonen, Ari Pirkola, Heikki Keskustalo, Kari Visala, Kalervo Järvelin

Inf. Process. Manag., 2005

TREC 2005 Genomics Track Experiments at UTA.

Ari Pirkola

Proceedings of the Fourteenth Text REtrieval Conference, 2005

2004

Dictionary-Based Cross-Language Information Retrieval: Learning Experiences from CLEF 2000-2002.

Turid Hedlund, Eija Airio, Heikki Keskustalo, Raija Lehtokangas, Ari Pirkola, Kalervo Järvelin

Inf. Retr., 2004

TREC 2004 Genomics Track Experiments at UTA: The Effects of Primary Keys, Bigram Phrases and Query Expansion on Retrieval Performance.

Ari Pirkola

Proceedings of the Thirteenth Text REtrieval Conference, 2004

2003

Applying query structuring in cross-language retrieval.

Ari Pirkola, Deniz Puolamäki, Kalervo Järvelin

Inf. Process. Manag., 2003

TREC 2003 Genomics Track Experiments at UTA: Query Expansion with Predefinded High Frequency Terms.

Ari Pirkola, Erkka Leppänen

Proceedings of The Twelfth Text REtrieval Conference, 2003

Non-adjacent Digrams Improve Matching of Cross-Lingual Spelling Variants.

Heikki Keskustalo, Ari Pirkola, Kari Visala, Erkka Leppänen, Kalervo Järvelin

Proceedings of the String Processing and Information Retrieval, 2003

Fuzzy translation of cross-lingual spelling variants.

Ari Pirkola, Jarmo Toivonen, Heikki Keskustalo, Kari Visala, Kalervo Järvelin

Proceedings of the SIGIR 2003: Proceedings of the 26th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, July 28, 2003

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

Proceedings of the Working Notes for CLEF 2003 Workshop co-located with the 7th European Conference on Digital Libraries (ECDL 2003), 2003

The Impact of Word Normalization Methods and Merging Strategies on Multilingual IR.

Eija Airio, Heikki Keskustalo, Turid Hedlund, Ari Pirkola

Proceedings of the Comparative Evaluation of Multilingual Information Access Systems, 2003

2002

The RATF formula (Kwok's formula): exploiting average term frequency in cross-language retrieval.

Ari Pirkola, Erkka Leppänen, Kalervo Järvelin

Inf. Res., 2002

Targeted s-gram matching: a novel n-gram matching technique for cross- and mono-lingual word form variants.

Ari Pirkola, Heikki Keskustalo, Erkka Leppänen, Antti-Pekka Känsälä, Kalervo Järvelin

Inf. Res., 2002

CLIR Research at the University of Tampere: issue Editorial.

Ari Pirkola

Inf. Res., 2002

UTACLIR @ CLEF 2002: Towards a Unified Translation Process Model.

Eija Airio, Heikki Keskustalo, Turid Hedlund, Ari Pirkola

Proceedings of the Working Notes for CLEF 2002 Workshop co-located with the 6th European Conference on Digital Libraries (ECDL 2002), 2002

Bilingual and Multilingual Runs with a Unified Process.

Eija Airio, Heikki Keskustalo, Turid Hedlund, Ari Pirkola

Proceedings of the Advances in Cross-Language Information Retrieval, 2002

2001

Morphological typology of languages for IR.

Ari Pirkola

J. Documentation, 2001

Employing the resolution power of search keys.

Ari Pirkola, Kalervo Järvelin

J. Assoc. Inf. Sci. Technol., 2001

Dictionary-Based Cross-Language Information Retrieval: Problems, Methods, and Research Findings.

Ari Pirkola, Turid Hedlund, Heikki Keskustalo, Kalervo Järvelin

Inf. Retr., 2001

Aspects of Swedish morphology and semantics from the perspective of mono- and cross-language information retrieval.

Turid Hedlund, Ari Pirkola, Kalervo Järvelin

Inf. Process. Manag., 2001

UTACLIR @ CLEF 2001: New Features for Handling Compound Words and Untranslatable Proper Names.

Turid Hedlund, Heikki Keskustalo, Ari Pirkola, Eija Airio, Kalervo Järvelin

Proceedings of the Working Notes for CLEF 2001 Workshop co-located with the 5th European Conference on Digital Libraries (ECDL 2001), 2001

Utaclir @ CLEF 2001 - Effects of Compound Splitting and N-Gram Techniques.

Turid Hedlund, Heikki Keskustalo, Ari Pirkola, Eija Airio, Kalervo Järvelin

Proceedings of the Evaluation of Cross-Language Information Retrieval Systems, 2001

2000

Bilingual Tests with Swedish, Finnish and German Queries.

Turid Hedlund, Heikki Keskustalo, Ari Pirkola, Mikko Sepponen, Kalervo Järvelin

Proceedings of the Working Notes for CLEF 2000 Workshop co-located with the 4th European Conference on Digital Libraries (ECDL 2000), 2000

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

Proceedings of the Cross-Language Information Retrieval and Evaluation, 2000

1999

The Effects of Conjunction, Facet Structure, and Dictionary Combinations in Concept-Based Cross-Language Retrieval.

Ari Pirkola, Heikki Keskustalo, Kalervo Järvelin

Inf. Retr., 1999

1998

The Effects of Query Structure and Dictionary Setups in Dictionary-Based Cross-Language Information Retrieval.

Ari Pirkola

Proceedings of the SIGIR '98: Proceedings of the 21st Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, 1998

1996

The Effect of Anaphor and Ellipsis Resolution on Proximity Searching in a Text Database.

Ari Pirkola, Kalervo Järvelin

Inf. Process. Manag., 1996