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2017
1 Benetka, Jan; Balog, Krisztian; Nørvåg, Kjetil.
Anticipating Information Needs Based on Check-in Activity. I: Proceedings of the Tenth ACM International Conference on Web Search and Data Mining, WSDM 2017, Cambridge, United Kingdom, February 6-10, 2017. ACM Publications 2017 ISBN 978-1-4503-4675-7. s. 41-50
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2 Benetka, Jan; Balog, Krisztian; Nørvåg, Kjetil.
Towards Building a Knowledge Base of Monetary Transactions from a News Collection. I: 2017 ACM/IEEE Joint Conference on Digital Libraries (JCDL) (2017). IEEE 2017 ISBN 978-1-5386-3862-0. s. 209-218
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3 Duong, Quang-Huy; Fournier-Viger, Philippe; Ramampiaro, Heri; Nørvåg, Kjetil; Dam, Thu-Lan.
Efficient High Utility Itemset Mining using Buffered Utility-Lists. Applied intelligence (Boston) 2017
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4 Gkorgkas, Orestis; Vlachou, Akrivi; Doulkeridis, Christos; Nørvåg, Kjetil.
Exploratory product search using top-k join queries. Information Systems 2017 ;Volum 64.(March) s. 75-92
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2016
5 Chester, Sean; Gkorgkas, Orestis; Nørvåg, Kjetil.
Top-k Dominating Queries, in Parallel, in Memory. I: Evaggelia Pitoura, Sofian Maabout, Georgia Koutrika, Amélie Marian, Letizia Tanca, Ioana Manolescu, Kostas Stefanidis: Proceedings of the 19th International Conference on Extending Database Technology, EDBT 2016, Bordeaux, France, March 15-16, 2016, Bordeaux, France, March 15-16, 2016. OpenProceedings 2016 ISBN 978-3-89318-070-7. s. 698-699
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6 Kusmierczyk, Tomasz; Nørvåg, Kjetil.
Online Food Recipe Title Semantics: Combining Nutrient Facts and Topics. I: Proceedings of the 25th ACM International on Conference on Information and Knowledge Management. ACM Publications 2016 ISBN 978-1-4503-4073-1. s. -
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7 Kusmierczyk, Tomasz; Trattner, Christoph; Nørvåg, Kjetil.
Understanding and Predicting Online Food Recipe Production Patterns. I: Proceedings of the 27th ACM Conference on Hypertext and Social Media, HT 2016, Halifax, NS, Canada, July 10-13, 2016. ACM Publications 2016 ISBN 978-1-4503-4247-6. s. 243-248
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8 Nørvåg, Kjetil.
TPDL 2016 Doctoral Consortium. Bulletin of IEEE Technical Committee on Digital Libraries 2016 ;Volum 12.(2) s. -
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9 Saouk, Mei; Doulkeridis, Christos; Vlachou, Akrivi; Nørvåg, Kjetil.
Efficient processing of top-k joins in MapReduce. I: Proceedings 2016 IEEE International Conference on Big Data. IEEE 2016 ISBN 978-1-4673-9005-7. s. 570-577
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2015
10 Gkorgkas, Orestis; Vlachou, Akrivi; Doulkeridis, Christos; Nørvåg, Kjetil.
Finding the Most Diverse Products using Preference Queries. I: Advances in Database Technology - EDBT 2015, 18th International Conference on Extending Database Technology, Brussels, Belgium, March 23-27, Proceedings. OpenProceedings 2015 ISBN 978-3-89318-067-7. s. 205-216
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11 Gkorgkas, Orestis; Vlachou, Akrivi; Doulkeridis, Christos; Nørvåg, Kjetil.
Maximizing influence of spatio-textual objects based on keyword selection. Lecture Notes in Computer Science 2015 ;Volum 9239. s. 413-430
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12 Kanhabua, Nattiya; Blanco, Roi; Nørvåg, Kjetil.
Temporal Information Retrieval. Now Publishers Inc. 2015 (ISBN 978-1-68083-032-3) 126 s.
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13 Kanhabua, Nattiya; Blanco, Roi; Nørvåg, Kjetil.
Temporal information retrieval. Foundations and Trends in Information Retrieval 2015 ;Volum 9.(2) s. 91-208
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14 Kusmierczyk, Tomasz; Nørvåg, Kjetil.
Mining Correlations on Massive Bursty Time Series Collections. Lecture Notes in Computer Science 2015 ;Volum 9049. s. 55-71
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15 Kusmierczyk, Tomasz; Trattner, Christoph; Nørvåg, Kjetil.
Temporal Patterns in Online Food Innovation. I: Aldo Gangemi, Stefano Leonardi, Alessandro Panconesi: Proceedings of the 24th International Conference on World Wide Web Companion, WWW 2015, Florence, Italy, May 18-22, 2015 - Companion Volume. ACM Publications 2015 ISBN 978-1-4503-3473-0. s. 1345-1350
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16 Kusmierczyk, Tomasz; Trattner, Christoph; Nørvåg, Kjetil.
Temporality in Online Food Recipe Consumption and Production. I: Aldo Gangemi, Stefano Leonardi, Alessandro Panconesi: Proceedings of the 24th International Conference on World Wide Web Companion, WWW 2015, Florence, Italy, May 18-22, 2015 - Companion Volume. ACM Publications 2015 ISBN 978-1-4503-3473-0. s. 55-56
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17 Larrain, Santiago; Trattner, Christoph; Parra, Denis; Graells-Garrido, Eduardo; Nørvåg, Kjetil.
Good Times Bad Times: A Study on Recency Effects in Collaborative Filtering for Social Tagging. I: Proceedings of the 9th ACM Conference on Recommender Systems, RecSys 2015, Vienna, Austria, September 16-20, 2015. ACM Publications 2015 ISBN 9781450336925. s. 269-272
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18 Rybák, Jan; Balog, Krisztian; Nørvåg, Kjetil.
IR game: How well do you know information retrieval papers?. CEUR Workshop Proceedings 2015 ;Volum 1345. s. 7-12
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2014
19 Doulkeridis, Christos; Nørvåg, Kjetil.
A survey of large-scale analytical query processing in MapReduce. The VLDB journal 2014 ;Volum 23.(3) s. 355-380
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20 Gkorgkas, Orestis; Vlachou, Akrivi; Doulkeridis, Christos; Nørvåg, Kjetil.
Efficient processing of exploratory top-k joins. I: Conference on Scientific and Statistical Database Management, SSDBM '14, Aalborg, Denmark, June 30 - July 02, 2014. ACM Publications 2014 ISBN 978-1-4503-2722-0. s. -
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21 Kotsakos, Dimitrios; Lappas, Theodoros; Kotzias, Dimitrios; Gunopulos, Dimitrios; Kanhabua, Nattiya; Nørvåg, Kjetil.
A burstiness-aware approach for document dating. I: The 37th International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR '14, Gold Coast , QLD, Australia - July 06 - 11, 2014. ACM Publications 2014 ISBN 978-1-4503-2257-7. s. 1003-1006
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22 Liknes, Stian; Vlachou, Akrivi; Doulkeridis, Christos; Nørvåg, Kjetil.
APSkyline: Improved Skyline Computation for Multicore Architectures. Lecture Notes in Computer Science 2014 ;Volum 8421. s. 312-326
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23 Rybák, Jan; Balog, Krisztian; Nørvåg, Kjetil.
ExperTime: tracking expertise over time. I: The 37th International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR '14, Gold Coast , QLD, Australia - July 06 - 11, 2014. ACM Publications 2014 ISBN 978-1-4503-2257-7. s. 1273-1274
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24 Rybák, Jan; Balog, Krisztian; Nørvåg, Kjetil.
Temporal expertise profiling. Lecture Notes in Computer Science 2014 ;Volum 8416. s. 540-546
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2013
25 Balog, Krisztian; Ramampiaro, Heri; Nørvåg, Kjetil.
KBAAA: A Web-based Toolkit for the Assessment and Analysis of Knowledge Base Acceleration Systems. I: Proceedings of the Open research Areas in Information Retrieval (OAIR 2013). ACM Publications 2013 ISBN 978-2-905450-09-8. s. -
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26 Balog, Krisztian; Takhirov, Naimdjon; Ramampiaro, Heri; Nørvåg, Kjetil.
Multi-step Classification Approaches to Cumulative Citation Recommendation. I: Proceedings of the Open research Areas in Information Retrieval (OAIR 2013). ACM Publications 2013 ISBN 978-2-905450-09-8. s. -
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27 Chan, Chee Yong; Lu, Jiaheng; Nørvåg, Kjetil; Tanin, Egemen.
Workshops Proceedings of the 29th IEEE International Conference on Data Engineering, ICDE 2013, Brisbane, Australia, April 8-12, 2013. IEEE 2013 (ISBN 978-1-4673-5303-8) 333 s.
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28 Ciglan, Marek; Laclavik, Michal; Nørvåg, Kjetil.
On community detection in real-world networks and the importance of degree assortativity. I: The 19th ACM SIGKDD International Conference on Knowledge Discovery and Data Mining, KDD 2013, Chicago, IL, USA, August 11-14, 2013. ACM Publications 2013 ISBN 978-1-4503-2174-7. s. -
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29 Gkorgkas, Orestis; Stefanidis, Kostas; Nørvåg, Kjetil.
Framework for Grouping and Summarizing Keyword Search Results. Lecture Notes in Computer Science 2013 ;Volum 8133. s. 246-259
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30 Gkorgkas, Orestis; Vlachou, Akrivi; Doulkeridis, Christos; Nørvåg, Kjetil.
Discovering Influential Data Objects over Time. Lecture Notes in Computer Science 2013 ;Volum 8098. s. 110-127
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31 Neumayer, Robert.
Semantic and Distributed Entity Search in the Web of Data. : NTNU trykk Trondheim 2013 (ISBN 978-82-471-4208-0) 159 s. Doktoravhandlinger ved NTNU(2013:56)
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32 Stefanidis, Kostas; Eirini, Ntoutsi; Petropoulos,, Mihalis; Nørvåg, Kjetil; Kriegel, Hans-Peter.
A Framework for Modeling, Computing and Presenting Time-Aware Recommendations. Lecture Notes in Computer Science 2013 ;Volum 8220. s. -
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33 Stefanidis, Kostas; Nørvåg, Kjetil.
gRecs: Exploiting the Power of Data Mining Techniques for Efficient Computation of Group Recommendations. ERCIM News 2013 (92) s. 51-52
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34 Tsatsaronis, George; Varlamis, Iraklis; Kanhabua, Nattiya; Nørvåg, Kjetil.
Temporal Classifiers for Predicting the Expansion of Medical Subject Headings. Lecture Notes in Computer Science 2013 ;Volum 7816. s. 98-113
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35 Vlachou, Akrivi; Doulkeridis, Christos; Nørvåg, Kjetil; Kotidis, Yannis.
Branch-and-bound algorithm for reverse top-k queries. I: Proceedings of the ACM SIGMOD International Conference on Management of Data, SIGMOD 2013, New York, NY, USA, June 22-27, 2013. ACM Publications 2013 ISBN 978-1-4503-2037-5. s. -
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2012
36 Balog, Krisztian; Neumayer, Robert; Nørvåg, Kjetil.
Collection Ranking and Selection for Federated Entity Search. Lecture Notes in Computer Science 2012 ;Volum 7608. s. 73-85
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37 Balog, Krisztian; Nørvåg, Kjetil.
On the use of semantic knowledge bases for temporally-aware entity retrieval. I: Proceedings of the Fifth workshop on Exploiting Semantic Annotations in Information Retrieval, ESAIR 2012, Maui, HI, USA, October 28, 2012. ACM Publications 2012 ISBN 978-1-4503-1717-7. s. 1-2
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38 Bjørkelund, Eivind; Burnett, Thomas H; Nørvåg, Kjetil.
A Study of Opinion Mining and Visualization of Hotel Reviews. I: iiWAS2012: The 14th International Conference on Information Integration and Web. ACM Publications 2012 ISBN 978-1-4503-1306-3. s. 229-238
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39 Ciglan, Marek; Nørvåg, Kjetil; Hluchy, Ladislav.
The SemSets model for ad-hoc semantic list search. I: Proceedings of the 21st World Wide Web Conference 2012, WWW 2012, Lyon, France, April 16-20, 2012. ACM Publications 2012 ISBN 978-1-4503-1229-5. s. 131-140
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40 Doulkeridis, Christos; Nørvåg, Kjetil.
On Saying "Enough Already!" in MapReduce. I: 1st International Workshop on Cloud Intelligence (colocated with VLDB 2012), Cloud-I '12, Istanbul, Turkey, August 31, 2012. ACM Publications 2012 ISBN 978-1-4503-1596-8. s. -
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41 Doulkeridis, Christos; Vlachou, Akrivi; Nørvåg, Kjetil; Kotidis, Yannis; Polyzotis, Neoklis.
Processing of Rank Joins in Highly Distributed Systems. Proceedings / International Conference on Data Engineering 2012 s. 606-617
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42 Kanhabua, Nattiya; Berberich, Klaus; Nørvåg, Kjetil.
Learning to select a time-aware retrieval model. I: The 35th International ACM SIGIR conference on research and development in Information Retrieval, SIGIR '12, Portland, OR, USA, August 12-16, 2012. ACM Publications 2012 ISBN 978-1-4503-1472-5. s. 1099-1100
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43 Kanhabua, Nattiya; Nørvåg, Kjetil.
Estimating query difficulty for news prediction retrieval. I: 21st ACM International Conference on Information and Knowledge Management, CIKM'12, Maui, HI, USA, October 29 - November 02, 2012. ACM Publications 2012 ISBN 978-1-4503-1156-4. s. 2623-2626
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44 Kanhabua, Nattiya; Nørvåg, Kjetil.
Learning to rank search results for time-sensitive queries. I: 21st ACM International Conference on Information and Knowledge Management, CIKM'12, Maui, HI, USA, October 29 - November 02, 2012. ACM Publications 2012 ISBN 978-1-4503-1156-4. s. 2463-2466
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45 Neumayer, Robert; Balog, Krisztian; Nørvåg, Kjetil.
On the Modeling of Entities for Ad-Hoc Entity Search in the Web of Data. Lecture Notes in Computer Science 2012 ;Volum 7224. s. -
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46 Neumayer, Robert; Balog, Krisztian; Nørvåg, Kjetil.
Ranking Distributed Knowledge Repositories. Lecture Notes in Computer Science 2012 ;Volum 7489. s. 486-491
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47 Neumayer, Robert; Balog, Krisztian; Nørvåg, Kjetil.
When Simple is (more than) Good Enough: Effective Semantic Search with (almost) no Semantics. Lecture Notes in Computer Science 2012 ;Volum 7224. s. -
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48 Ntoutsi, Irene; Stefanidis, Konstantinos; Nørvåg, Kjetil; Kriegel, Hans-Peter.
Fast Group Recommendations by Applying User Clustering. Lecture Notes in Computer Science 2012 s. 126-140
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49 Ntoutsi, Irene; Stefanidis, Konstantinos; Nørvåg, Kjetil; Kriegel, Hans-Peter.
gRecs: A Group Recommendation System Based on User Clustering. Lecture Notes in Computer Science 2012 ;Volum 7239. s. -
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50 Rocha-Junior, Joao B.; Nørvåg, Kjetil.
Top-k spatial keyword queries on road networks. I: 15th International Conference on Extending Database Technology, EDBT '12, Berlin, Germany, March 27-30, 2012, Proceedings. ACM Publications 2012 ISBN 978-1-4503-0790-1. s. 168-179
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