Kjetil Nørvåg

188 papers A* 18A 19B 19C 19Misc 2Journal 45Unranked 56

Year	Rank	Type	Title / Venue / Authors
2026	C	`ed.`	Advances in Databases and Information Systems - 29th European Conference, ADBIS 2025, Tampere, Finland, September 23-26, 2025, Proceedings ADBIS Panos K. Chrysanthis, Kjetil Nørvåg, Kostas Stefanidis, Zheying Zhang
2026	—	`ed.`	New Trends in Database and Information Systems - ADBIS 2025 Short Papers, Workshops, Doctoral Consortium and Tutorials, Tampere, Finland, September 23-26, 2025, Proceedings ADBIS (Short Papers) Panos K. Chrysanthis, Kjetil Nørvåg, Kostas Stefanidis, Zheying Zhang, Elisa Quintarelli, Ester Zumpano
2024	J	`jnl`	Datis: data augmentation for trust intensity prediction in incomplete signed networks. Soc. Netw. Anal. Min. Shiva Shadrooh, Kjetil Nørvåg
2024	B	`conf`	Efficient Semantic Similarity Search over Spatio-textual Data. EDBT George S. Theodoropoulos, Kjetil Nørvåg, Christos Doulkeridis
2024	J	`jnl`	Guest editorial: Papers selected from European conference on advances in databases and information systems. Comput. Sci. Inf. Syst. Genoveva Vargas-Solar, Barbara Catania, Ester Zumpano, Kjetil Nørvåg, Silvia Chiusano, Tania Cerquitelli, Robert Wrembel
2024	J	`jnl`	SMoTeF: Smurf money laundering detection using temporal order and flow analysis. Appl. Intell. Shiva Shadrooh, Kjetil Nørvåg
2023	J	`jnl`	Decisive skyline queries for truly balancing multiple criteria. Data Knowl. Eng. Akrivi Vlachou, Christos Doulkeridis, João B. Rocha-Junior, Kjetil Nørvåg
2023	—	`conf`	Diversification of Top-k Geosocial Queries. ADBIS (Short Papers) Hassan Abedi Firouzjaei, Dhruv Gupta, Kjetil Nørvåg
2022	—	`ed.`	Advances in Information Retrieval - 44th European Conference on IR Research, ECIR 2022, Stavanger, Norway, April 10-14, 2022, Proceedings, Part I ECIR (1) Matthias Hagen, Suzan Verberne, Craig Macdonald, Christin Seifert, Krisztian Balog, Kjetil Nørvåg, Vinay Setty
2022	—	`ed.`	Advances in Information Retrieval - 44th European Conference on IR Research, ECIR 2022, Stavanger, Norway, April 10-14, 2022, Proceedings, Part II ECIR (2) Matthias Hagen, Suzan Verberne, Craig Macdonald, Christin Seifert, Krisztian Balog, Kjetil Nørvåg, Vinay Setty
2022	—	`ed.`	New Trends in Database and Information Systems - ADBIS 2022 Short Papers, Doctoral Consortium and Workshops: DOING, K-GALS, MADEISD, MegaData, SWODCH, Turin, Italy, September 5-8, 2022, Proceedings ADBIS (Short Papers) Silvia Chiusano, Tania Cerquitelli, Robert Wrembel, Kjetil Nørvåg, Barbara Catania, Genoveva Vargas-Solar, Ester Zumpano
2022	B	`conf`	On Decisive Skyline Queries. DaWaK Akrivi Vlachou, Christos Doulkeridis, João B. Rocha-Junior, Kjetil Nørvåg
2022	J	`jnl`	Report on the 44th European Conference on Information Retrieval (ECIR 2022): The First Major Hybrid IR Conference. SIGIR Forum Krisztian Balog, Kjetil Nørvåg, Vinay Setty
2021	J	`jnl`	Density Guarantee on Finding Multiple Subgraphs and Subtensors. ACM Trans. Knowl. Discov. Data Quang-Huy Duong, Heri Ramampiaro, Kjetil Nørvåg, Thu-Lan Dam
2021	J	`jnl`	Efficient top- Inf. Syst. Thu-Lan Dam, Sean Chester, Kjetil Nørvåg, Quang-Huy Duong
2021	J	`jnl`	Exploring Decomposition for Solving Pattern Mining Problems. ACM Trans. Manag. Inf. Syst. Youcef Djenouri, Jerry Chun-Wei Lin, Kjetil Nørvåg, Heri Ramampiaro, Philip S. Yu
2020	A	`conf`	Diversifying Top-k Point-of-Interest Queries via Collective Social Reach. CIKM Stella Maropaki, Sean Chester, Christos Doulkeridis, Kjetil Nørvåg
2020	—	`conf`	Fast and Accurate Group Outlier Detection for Trajectory Data. ADBIS (Short Papers) Youcef Djenouri, Kjetil Nørvåg, Heri Ramampiaro, Jerry Chun-Wei Lin
2020	A*	`conf`	Multiple Dense Subtensor Estimation with High Density Guarantee. ICDE Quang-Huy Duong, Heri Ramampiaro, Kjetil Nørvåg
2020	J	`jnl`	Space-time series clustering: Algorithms, taxonomy, and case study on urban smart cities. Eng. Appl. Artif. Intell. Asma Belhadi, Youcef Djenouri, Kjetil Nørvåg, Heri Ramampiaro, Florent Masseglia, Jerry Chun-Wei Lin
2020	—	`conf`	The SPADES Framework for Scalable Management of Spatio-textual Data. PCI Akrivi Vlachou, Christos Doulkeridis, Nikolaos Koutroumanis, Dimitrios Poulopoulos, Kjetil Nørvåg
2019	J	`jnl`	Advances in Databases and Information Systems (ADBIS) 2016 & 2017. Inf. Syst. Kjetil Nørvåg, Mirjana Ivanovic, Marite Kirikova, Bernhard Thalheim
2019	A*	`conf`	Highly Efficient Pattern Mining Based on Transaction Decomposition. ICDE Youcef Djenouri, Jerry Chun-Wei Lin, Kjetil Nørvåg, Heri Ramampiaro
2019	J	`jnl`	Investigating and predicting online food recipe upload behavior. Inf. Process. Manag. Christoph Trattner, Tomasz Kusmierczyk, Kjetil Nørvåg
2019	J	`jnl`	Locality-adapted kernel densities of term co-occurrences for location prediction of tweets. Inf. Process. Manag. Ozer Ozdikis, Heri Ramampiaro, Kjetil Nørvåg
2019	B	`ed.`	Proceedings of the 16th International Symposium on Spatial and Temporal Databases, SSTD 2019, Vienna, Austria, August 19-21, 2019. SSTD Walid G. Aref, Michela Bertolotto, Panagiotis Bouros, Christian S. Jensen, Ahmed R. Mahmood, Kjetil Nørvåg, Dimitris Sacharidis, Mohamed Sarwat
2019	A	`conf`	Sketching Streaming Histogram Elements using Multiple Weighted Factors. CIKM Quang-Huy Duong, Heri Ramampiaro, Kjetil Nørvåg
2019	J	`jnl`	Towards efficiently mining closed high utility itemsets from incremental databases. Knowl. Based Syst. Thu-Lan Dam, Heri Ramampiaro, Kjetil Nørvåg, Quang-Huy Duong
2018	C	`ed.`	25th International Symposium on Temporal Representation and Reasoning, TIME 2018, Warsaw, Poland, October 15-17, 2018 TIME Natasha Alechina, Kjetil Nørvåg, Wojciech Penczek
2018	J	`jnl`	Applying temporal dependence to detect changes in streaming data. Appl. Intell. Quang-Huy Duong, Heri Ramampiaro, Kjetil Nørvåg
2018	J	`jnl`	Efficient high utility itemset mining using buffered utility-lists. Appl. Intell. Quang-Huy Duong, Philippe Fournier-Viger, Heri Ramampiaro, Kjetil Nørvåg, Thu-Lan Dam
2018	J	`jnl`	High utility drift detection in quantitative data streams. Knowl. Based Syst. Quang-Huy Duong, Heri Ramampiaro, Kjetil Nørvåg, Philippe Fournier-Viger, Thu-Lan Dam
2018	A*	`conf`	Locality-adapted Kernel Densities for Tweet Localization. SIGIR Ozer Ozdikis, Heri Ramampiaro, Kjetil Nørvåg
2018	A*	`conf`	On Validation and Predictability of Digital Badges' Influence on Individual Users. AAAI Tomasz Kusmierczyk, Kjetil Nørvåg
2018	A	`conf`	Spatial Statistics of Term Co-occurrences for Location Prediction of Tweets. ECIR Ozer Ozdikis, Heri Ramampiaro, Kjetil Nørvåg
2017	C	`ed.`	Advances in Databases and Information Systems - 21st European Conference, ADBIS 2017, Nicosia, Cyprus, September 24-27, 2017, Proceedings ADBIS Marite Kirikova, Kjetil Nørvåg, George A. Papadopoulos
2017	A	`conf`	Anticipating Information Needs Based on Check-in Activity. WSDM Jan R. Benetka, Krisztian Balog, Kjetil Nørvåg
2017	J	`jnl`	Anticipating Information Needs Based on Check-in Activity. CoRR Jan R. Benetka, Krisztian Balog, Kjetil Nørvåg
2017	J	`jnl`	Determining Impact of Social Media Badges through Joint Clustering of Temporal Traces and User Features. CoRR Tomasz Kusmierczyk, Kjetil Nørvåg
2017	J	`jnl`	Exploratory product search using top-k join queries. Inf. Syst. Orestis Gkorgkas, Akrivi Vlachou, Christos Doulkeridis, Kjetil Nørvåg
2017	—	`ed.`	New Trends in Databases and Information Systems - ADBIS 2017 Short Papers and Workshops, AMSD, BigNovelTI, DAS, SW4CH, DC, Nicosia, Cyprus, September 24-27, 2017, Proceedings ADBIS (Short Papers and Workshops) Marite Kirikova, Kjetil Nørvåg, George A. Papadopoulos, Johann Gamper, Robert Wrembel, Jérôme Darmont, Stefano Rizzi
2017	—	`conf`	Towards Building a Knowledge Base of Monetary Transactions from a News Collection. JCDL Jan R. Benetka, Krisztian Balog, Kjetil Nørvåg
2017	J	`jnl`	Towards Building a Knowledge Base of Monetary Transactions from a News Collection. CoRR Jan R. Benetka, Krisztian Balog, Kjetil Nørvåg
2016	—	`conf`	Efficient processing of top-k joins in MapReduce. IEEE BigData Mei Saouk, Christos Doulkeridis, Akrivi Vlachou, Kjetil Nørvåg
2016	J	`jnl`	FOODWEB - Studying Food Consumption and Production Patterns on the Web. ERCIM News Christoph Trattner, Tomasz Kusmierczyk, Kjetil Nørvåg
2016	J	`jnl`	Introduction to the TPDL 2016 Doctoral Consortium. Bull. IEEE Tech. Comm. Digit. Libr. Kjetil Nørvåg
2016	A	`conf`	Online Food Recipe Title Semantics: Combining Nutrient Facts and Topics. CIKM Tomasz Kusmierczyk, Kjetil Nørvåg
2016	B	`conf`	Top-k Dominating Queries, in Parallel, in Memory. EDBT Sean Chester, Orestis Gkorgkas, Kjetil Nørvåg
2016	—	`conf`	Understanding and Predicting Online Food Recipe Production Patterns. HT Tomasz Kusmierczyk, Christoph Trattner, Kjetil Nørvåg
2015	B	`conf`	Finding the Most Diverse Products using Preference Queries. EDBT Orestis Gkorgkas, Akrivi Vlachou, Christos Doulkeridis, Kjetil Nørvåg
2015	A	`conf`	Good Times Bad Times: A Study on Recency Effects in Collaborative Filtering for Social Tagging. RecSys Santiago Larrain, Christoph Trattner, Denis Parra, Eduardo Graells-Garrido, Kjetil Nørvåg
2015	—	`conf`	IR Game: How well do you Know Information Retrieval Papers? GamifIR@ECIR Jan Rybak, Krisztian Balog, Kjetil Nørvåg
2015	B	`conf`	Maximizing Influence of Spatio-Textual Objects Based on Keyword Selection. SSTD Orestis Gkorgkas, Akrivi Vlachou, Christos Doulkeridis, Kjetil Nørvåg
2015	—	`conf`	Mining Correlations on Massive Bursty Time Series Collections. DASFAA (1) Tomasz Kusmierczyk, Kjetil Nørvåg
2015	J	`jnl`	Temporal Information Retrieval. Found. Trends Inf. Retr. Nattiya Kanhabua, Roi Blanco, Kjetil Nørvåg
2015	—	`conf`	Temporal Patterns in Online Food Innovation. WWW (Companion Volume) Tomasz Kusmierczyk, Christoph Trattner, Kjetil Nørvåg
2015	—	`conf`	Temporality in Online Food Recipe Consumption and Production. WWW (Companion Volume) Tomasz Kusmierczyk, Christoph Trattner, Kjetil Nørvåg
2014	A*	`conf`	A burstiness-aware approach for document dating. SIGIR Dimitrios Kotsakos, Theodoros Lappas, Dimitrios Kotzias, Dimitrios Gunopulos, Nattiya Kanhabua, Kjetil Nørvåg
2014	J	`jnl`	A survey of large-scale analytical query processing in MapReduce. VLDB J. Christos Doulkeridis, Kjetil Nørvåg
2014	—	`conf`	APSkyline: Improved Skyline Computation for Multicore Architectures. DASFAA (1) Stian Liknes, Akrivi Vlachou, Christos Doulkeridis, Kjetil Nørvåg
2014	B	`conf`	Efficient processing of exploratory top-k joins. SSDBM Orestis Gkorgkas, Akrivi Vlachou, Christos Doulkeridis, Kjetil Nørvåg
2014	A*	`conf`	ExperTime: tracking expertise over time. SIGIR Jan Rybak, Krisztian Balog, Kjetil Nørvåg
2014	A	`conf`	Temporal Expertise Profiling. ECIR Jan Rybak, Krisztian Balog, Kjetil Nørvåg
2013	C	`conf`	A Framework for Grouping and Summarizing Keyword Search Results. ADBIS Orestis Gkorgkas, Kostas Stefanidis, Kjetil Nørvåg
2013	J	`jnl`	A Framework for Modeling, Computing and Presenting Time-Aware Recommendations. Trans. Large Scale Data Knowl. Centered Syst. Kostas Stefanidis, Eirini Ntoutsi, Mihalis Petropoulos, Kjetil Nørvåg, Hans-Peter Kriegel
2013	—	`conf`	Branch-and-bound algorithm for reverse top-k queries. SIGMOD Conference Akrivi Vlachou, Christos Doulkeridis, Kjetil Nørvåg, Yannis Kotidis
2013	B	`conf`	Discovering Influential Data Objects over Time. SSTD Orestis Gkorgkas, Akrivi Vlachou, Christos Doulkeridis, Kjetil Nørvåg
2013	—	`conf`	KBAAA: a web-based toolkit for the assessment and analysis of knowledge base acceleration systems. OAIR Krisztian Balog, Heri Ramampiaro, Kjetil Nørvåg
2013	—	`conf`	Multi-step classification approaches to cumulative citation recommendation. OAIR Krisztian Balog, Heri Ramampiaro, Naimdjon Takhirov, Kjetil Nørvåg
2013	A*	`conf`	On community detection in real-world networks and the importance of degree assortativity. KDD Marek Ciglan, Michal Laclavik, Kjetil Nørvåg
2013	—	`conf`	Temporal Classifiers for Predicting the Expansion of Medical Subject Headings. CICLing (1) George Tsatsaronis, Iraklis Varlamis, Nattiya Kanhabua, Kjetil Nørvåg
2013	—	`ed.`	Workshops Proceedings of the 29th IEEE International Conference on Data Engineering, ICDE 2013, Brisbane, Australia, April 8-12, 2013 ICDE Workshops Chee Yong Chan, Jiaheng Lu, Kjetil Nørvåg, Egemen Tanin
2013	J	`jnl`	gRecs: Exploiting the Power of Data Mining Techniques for Efficient Computation of Group Recommendations. ERCIM News Kostas Stefanidis, Kjetil Nørvåg
2012	—	`conf`	A Framework for Time-Aware Recommendations. DEXA (2) Kostas Stefanidis, Irene Ntoutsi, Kjetil Nørvåg, Hans-Peter Kriegel
2012	C	`conf`	A study of opinion mining and visualization of hotel reviews. iiWAS Eivind Bjørkelund, Thomas H. Burnett, Kjetil Nørvåg
2012	C	`conf`	Collection Ranking and Selection for Federated Entity Search. SPIRE Krisztian Balog, Robert Neumayer, Kjetil Nørvåg
2012	—	`conf`	Contextual Recommendations for Groups. ER Workshops Kostas Stefanidis, Nafiseh Shabib, Kjetil Nørvåg, John Krogstie
2012	J	`jnl`	Distributed top-k query processing by exploiting skyline summaries. Distributed Parallel Databases Akrivi Vlachou, Christos Doulkeridis, Kjetil Nørvåg
2012	A	`conf`	Estimating query difficulty for news prediction retrieval. CIKM Nattiya Kanhabua, Kjetil Nørvåg
2012	A	`conf`	Fast Group Recommendations by Applying User Clustering. ER Eirini Ntoutsi, Kostas Stefanidis, Kjetil Nørvåg, Hans-Peter Kriegel
2012	A	`conf`	Learning to rank search results for time-sensitive queries. CIKM Nattiya Kanhabua, Kjetil Nørvåg
2012	A*	`conf`	Learning to select a time-aware retrieval model. SIGIR Nattiya Kanhabua, Klaus Berberich, Kjetil Nørvåg
2012	—	`conf`	On saying "enough already!" in MapReduce. Cloud-I Christos Doulkeridis, Kjetil Nørvåg
2012	A	`conf`	On the Modeling of Entities for Ad-Hoc Entity Search in the Web of Data. ECIR Robert Neumayer, Krisztian Balog, Kjetil Nørvåg
2012	—	`conf`	On the use of semantic knowledge bases for temporally-aware entity retrieval. ESAIR Krisztian Balog, Kjetil Nørvåg
2012	—	`book`	Peer-to-Peer Query Processing over Multidimensional Data. Akrivi Vlachou, Christos Doulkeridis, Kjetil Nørvåg, Yannis Kotidis
2012	A*	`conf`	Processing of Rank Joins in Highly Distributed Systems. ICDE Christos Doulkeridis, Akrivi Vlachou, Kjetil Nørvåg, Yannis Kotidis, Neoklis Polyzotis
2012	B	`conf`	Ranking Distributed Knowledge Repositories. TPDL Robert Neumayer, Krisztian Balog, Kjetil Nørvåg
2012	A	`conf`	SemaFor: semantic document indexing using semantic forests. CIKM George Tsatsaronis, Iraklis Varlamis, Kjetil Nørvåg
2012	A*	`conf`	The SemSets model for ad-hoc semantic list search. WWW Marek Ciglan, Kjetil Nørvåg, Ladislav Hluchý
2012	B	`conf`	Top-k spatial keyword queries on road networks. EDBT João B. Rocha-Junior, Kjetil Nørvåg
2012	A	`conf`	When Simple is (more than) Good Enough: Effective Semantic Search with (almost) no Semantics. ECIR Robert Neumayer, Krisztian Balog, Kjetil Nørvåg
2012	—	`conf`	gRecs: A Group Recommendation System Based on User Clustering. DASFAA (2) Irene Ntoutsi, Kostas Stefanidis, Kjetil Nørvåg, Hans-Peter Kriegel
2011	A*	`conf`	A comparison of time-aware ranking methods. SIGIR Nattiya Kanhabua, Kjetil Nørvåg
2011	J	`jnl`	A hybrid approach for estimating document frequencies in unstructured P2P networks. Inf. Syst. Robert Neumayer, Christos Doulkeridis, Kjetil Nørvåg
2011	A	`conf`	Combination of Feature Selection Methods for Text Categorisation. ECIR Robert Neumayer, Rudolf Mayer, Kjetil Nørvåg
2011	—	`conf`	Efficient Distributed Top- DASFAA (2) Norvald H. Ryeng, Akrivi Vlachou, Christos Doulkeridis, Kjetil Nørvåg
2011	B	`conf`	Efficient Processing of Top-k Spatial Keyword Queries. SSTD João B. Rocha-Junior, Orestis Gkorgkas, Simon Jonassen, Kjetil Nørvåg
2011	B	`conf`	Efficient execution plans for distributed skyline query processing. EDBT João B. Rocha-Junior, Akrivi Vlachou, Christos Doulkeridis, Kjetil Nørvåg
2011	C	`conf`	Evaluation of Feature Combination Approaches for Text Categorisation. ISMIS Robert Neumayer, Kjetil Nørvåg
2011	B	`conf`	How to Become a Group Leader? or Modeling Author Types Based on Graph Mining. TPDL George Tsatsaronis, Iraklis Varlamis, Sunna Torge, Matthias Reimann, Kjetil Nørvåg, Michael Schroeder, Matthias Zschunke
2011	—	`conf`	Monitoring reverse top-k queries over mobile devices. MobiDE Akrivi Vlachou, Christos Doulkeridis, Kjetil Nørvåg
2011	J	`jnl`	Monochromatic and Bichromatic Reverse Top-k Queries. IEEE Trans. Knowl. Data Eng. Akrivi Vlachou, Christos Doulkeridis, Yannis Kotidis, Kjetil Nørvåg
2011	Misc	`conf`	Site-autonomous distributed semantic caching. SAC Norvald H. Ryeng, Jon Olav Hauglid, Kjetil Nørvåg
2011	—	`conf`	TRUMIT: A Tool to Support Large-Scale Mining of Text Association Rules. ECML/PKDD (3) Robert Neumayer, George Tsatsaronis, Kjetil Nørvåg
2011	—	`ch.`	The DASCOSA-DB Grid Database System. Grid and Cloud Database Management Jon Olav Hauglid, Norvald H. Ryeng, Kjetil Nørvåg
2011	A*	`conf`	Time-based query performance predictors. SIGIR Nattiya Kanhabua, Kjetil Nørvåg
2010	C	`conf`	An Experimental Study on Unsupervised Graph-based Word Sense Disambiguation. CICLing George Tsatsaronis, Iraklis Varlamis, Kjetil Nørvåg
2010	J	`jnl`	DYFRAM: dynamic fragmentation and replica management in distributed database systems. Distributed Parallel Databases Jon Olav Hauglid, Norvald H. Ryeng, Kjetil Nørvåg
2010	—	`conf`	Determining Time of Queries for Re-ranking Search Results. ECDL Nattiya Kanhabua, Kjetil Nørvåg
2010	J	`jnl`	Efficient Processing of Top-k Spatial Preference Queries. Proc. VLDB Endow. João B. Rocha-Junior, Akrivi Vlachou, Christos Doulkeridis, Kjetil Nørvåg
2010	J	`jnl`	Efficient search based on content similarity over self-organizing P2P networks. Peer-to-Peer Netw. Appl. Christos Doulkeridis, Akrivi Vlachou, Kjetil Nørvåg, Yannis Kotidis, Michalis Vazirgiannis
2010	—	`conf`	Exploiting time-based synonyms in searching document archives. JCDL Nattiya Kanhabua, Kjetil Nørvåg
2010	B	`conf`	Extracting Named Entities and Synonyms from Wikipedia. AINA Christian Bohn, Kjetil Nørvåg
2010	B	`conf`	Fast Detection of Size-Constrained Communities in Large Networks. WISE Marek Ciglan, Kjetil Nørvåg
2010	J	`jnl`	Identifying the Most Influential Data Objects with Reverse Top-k Queries. Proc. VLDB Endow. Akrivi Vlachou, Christos Doulkeridis, Kjetil Nørvåg, Yannis Kotidis
2010	A*	`conf`	K-AP: Generating Specified K Clusters by Efficient Affinity Propagation. ICDM Xiangliang Zhang, Wei Wang, Kjetil Nørvåg, Michèle Sebag
2010	C	`conf`	Learning to Find Interesting Connections in Wikipedia. APWeb Marek Ciglan, Etienne Rivière, Kjetil Nørvåg
2010	A	`conf`	On the selectivity of multidimensional routing indices. CIKM Christos Doulkeridis, Akrivi Vlachou, Kjetil Nørvåg, Yannis Kotidis, Michalis Vazirgiannis
2010	—	`conf`	QUEST: Query Expansion Using Synonyms over Time. ECML/PKDD (3) Nattiya Kanhabua, Kjetil Nørvåg
2010	A*	`conf`	Reverse top-k queries. ICDE Akrivi Vlachou, Christos Doulkeridis, Yannis Kotidis, Kjetil Nørvåg
2010	—	`conf`	SGDB - Simple Graph Database Optimized for Activation Spreading Computation. DASFAA Workshops Marek Ciglan, Kjetil Nørvåg
2010	B	`conf`	SemanticRank: Ranking Keywords and Sentences Using Semantic Graphs. COLING George Tsatsaronis, Iraklis Varlamis, Kjetil Nørvåg
2010	A	`conf`	WikiPop: personalized event detection system based on Wikipedia page view statistics. CIKM Marek Ciglan, Kjetil Nørvåg
2009	—	`conf`	AGiDS: A Grid-Based Strategy for Distributed Skyline Query Processing. Globe João B. Rocha-Junior, Akrivi Vlachou, Christos Doulkeridis, Kjetil Nørvåg
2009	B	`conf`	Aggregation of Document Frequencies in Unstructured P2P Networks. WISE Robert Neumayer, Christos Doulkeridis, Kjetil Nørvåg
2009	—	`conf`	Bandwidth-constrained distributed skyline computation. MobiDE Akrivi Vlachou, Kjetil Nørvåg
2009	A*	`conf`	Efficient and Robust Database Support for Data-Intensive Applications in Dynamic Environments. ICDE Jon Olav Hauglid, Kjetil Nørvåg, Norvald H. Ryeng
2009	A	`conf`	Multidimensional routing indices for efficient distributed query processing. CIKM Christos Doulkeridis, Akrivi Vlachou, Kjetil Nørvåg, Yannis Kotidis, Michalis Vazirgiannis
2009	—	`conf`	Omiotis: A Thesaurus-Based Measure of Text Relatedness. ECML/PKDD (2) George Tsatsaronis, Iraklis Varlamis, Michalis Vazirgiannis, Kjetil Nørvåg
2009	—	`conf`	Semantic relatedness hits bibliographic data. WIDM George Tsatsaronis, Iraklis Varlamis, Sofia Stamou, Kjetil Nørvåg, Michalis Vazirgiannis
2009	C	`conf`	Semantic-Based Temporal Text-Rule Mining. CICLing Kjetil Nørvåg, Ole Kristian Fivelstad
2009	—	`conf`	Using Temporal Language Models for Document Dating. ECML/PKDD (2) Nattiya Kanhabua, Kjetil Nørvåg
2008	—	`conf`	Improving Temporal Language Models for Determining Time of Non-timestamped Documents. ECDL Nattiya Kanhabua, Kjetil Nørvåg
2008	—	`conf`	On efficient top-k query processing in highly distributed environments. SIGMOD Conference Akrivi Vlachou, Christos Doulkeridis, Kjetil Nørvåg, Michalis Vazirgiannis
2008	A	`conf`	PROQID: partial restarts of queries in distributed databases. CIKM Jon Olav Hauglid, Kjetil Nørvåg
2008	—	`conf`	Peer-to-peer similarity search over widely distributed document collections. LSDS-IR Christos Doulkeridis, Kjetil Nørvåg, Michalis Vazirgiannis
2008	J	`jnl`	Query Planning in the PORDaS P2P Database System. J. Digit. Inf. Manag. Kjetil Nørvåg, Eirik Eide, Odin Hole Standal
2008	—	`conf`	RIPPNET: Efficient range indexing in peer-to-peer networks. ICDIM Norvald H. Ryeng, Kjetil Nørvåg
2008	C	`conf`	Robust aggregation in peer-to-peer database systems. IDEAS Norvald H. Ryeng, Kjetil Nørvåg
2008	—	`conf`	Schema-assisted peer selection for XML querying in unstructured P2P systems. MobiDE Christos Doulkeridis, Kjetil Nørvåg, Michalis Vazirgiannis
2008	A*	`conf`	Skyline-based Peer-to-Peer Top-k Query Processing. ICDE Akrivi Vlachou, Christos Doulkeridis, Kjetil Nørvåg, Michalis Vazirgiannis
2007	J	`jnl`	Context-based caching and routing for P2P web service discovery. Distributed Parallel Databases Christos Doulkeridis, Vassilis Zafeiris, Kjetil Nørvåg, Michalis Vazirgiannis, Emmanouel A. Giakoumakis
2007	J	`jnl`	DESENT: decentralized and distributed semantic overlay generation in P2P networks. IEEE J. Sel. Areas Commun. Christos Doulkeridis, Kjetil Nørvåg, Michalis Vazirgiannis
2007	—	`conf`	Query planning in P2P database systems. ICDIM Kjetil Nørvåg, Eirik Eide, Odin Hole Standal
2006	—	`ch.`	Creating Synthetic Temporal Document Collections for Web Archive Benchmarking. Advances in Web Intelligence and Data Mining Kjetil Nørvåg, Albert Overskeid Nybø
2006	—	`conf`	DASCOSA: Database Support for Computational Science Applications. DEXA Workshops Kjetil Nørvåg
2006	C	`conf`	DyST: Dynamic and Scalable Temporal Text Indexing. TIME Kjetil Nørvåg, Albert Overskeid Nybø
2006	J	`jnl`	Granularity reduction in temporal document databases. Inf. Syst. Kjetil Nørvåg
2006	C	`conf`	Mining Association Rules in Temporal Document Collections. ISMIS Kjetil Nørvåg, Trond Øivind Eriksen, Kjell-Inge Skogstad
2006	—	`conf`	Peer-to-Peer Clustering for Semantic Overlay Network Generation. PRIS Michalis Vazirgiannis, Kjetil Nørvåg, Christos Doulkeridis
2006	—	`conf`	Scalable Semantic Overlay Generation for P2P-Based Digital Libraries. ECDL Christos Doulkeridis, Kjetil Nørvåg, Michalis Vazirgiannis
2006	—	`conf`	Schema Caching for Improved XML Query Processing in P2P Systems. Peer-to-Peer Computing Christos Doulkeridis, Kjetil Nørvåg, Michalis Vazirgiannis
2006	—	`conf`	Taxonomy Caching: A Scalable Low-CostMechanism for Indexing Remote Contents in Peer-to-Peer Systems. ICPS Kjetil Nørvåg, Christos Doulkeridis, Michalis Vazirgiannis
2006	A*	`conf`	The SOWES approach to P2P web search using semantic overlays. WWW Christos Doulkeridis, Kjetil Nørvåg, Michalis Vazirgiannis
2005	B	`conf`	Improving Space-Efficiency in Temporal Text-Indexing. DASFAA Kjetil Nørvåg, Albert Overskeid Nybø
2005	—	`conf`	News Item Extraction for Text Mining inWeb Newspapers. WIRI Kjetil Nørvåg, Randi Oyri
2005	—	`ch.`	Query Operators in Temporal XML Databases. Encyclopedia of Database Technologies and Applications Kjetil Nørvåg
2004	J	`jnl`	Buffer performance modeling in the context of unclustered index accesses with non-uniform access pattern. Inf. Sci. Kjetil Nørvåg
2004	—	`conf`	Rapid XML Database Application Development. ICEIS (1) Albrecht Schmidt, Kjetil Nørvåg
2004	J	`jnl`	Supporting temporal text-containment queries in temporal document databases. Data Knowl. Eng. Kjetil Nørvåg
2004	J	`jnl`	The Vagabond Approach to Logging and Recovery in Transaction-Time Temporal Object Database Systems. IEEE Trans. Knowl. Data Eng. Kjetil Nørvåg
2004	J	`jnl`	The design, implementation, and performance of the V2 temporal document database system. Inf. Softw. Technol. Kjetil Nørvåg
2003	—	`conf`	MobiShare: Sharing Context-Dependent Data and Services from Mobile Sources. Web Intelligence Efstratios Valavanis, Christopher N. Ververidis, Michalis Vazirgiannis, George C. Polyzos, Kjetil Nørvåg
2003	—	`conf`	Space-Efficient Support for Temporal Text Indexing in a Document Archive Context. ECDL Kjetil Nørvåg
2003	—	`conf`	TeXOR: Temporal XML Database on an Object-Relational Database System. Ershov Memorial Conference Kjetil Nørvåg, Marit Limstrand, Lene Myklebust
2003	—	`conf`	The V2 Temporal Document Database System. WWW (Posters) Kjetil Nørvåg
2003	C	`conf`	V2: A Database Approach to Temporal Document Management. IDEAS Kjetil Nørvåg
2002	J	`jnl`	A study of object declustering strategies in parallel temporal object database systems. Inf. Sci. Kjetil Nørvåg
2002	—	`conf`	Algorithms for Temporal Query Operators in XML Databases. EDBT Workshops Kjetil Nørvåg
2002	J	`jnl`	Signature caching in parallel object database systems. Inf. Softw. Technol. Kjetil Nørvåg
2002	Misc	`conf`	Temporal query operators in XML databases. SAC Kjetil Nørvåg
2001	J	`jnl`	Fine-granularity signature caching in object database systems. Data Knowl. Eng. Kjetil Nørvåg
2001	J	`jnl`	Issues in Transaction-Time Temporal Object Database Systems. J. Database Manag. Kjetil Nørvåg
2001	C	`conf`	Object and Log Management in Temporal Log-Only Object Database Systems. ADBIS Kjetil Nørvåg
2000	A	`conf`	A Comparative Study of Log-Only and In-Place Update Based Temporal Object Database Systems. CIKM Kjetil Nørvåg
2000	B	`conf`	A Performance Evaluation of Log-Only Temporal Object Database Systems. SSDBM Kjetil Nørvåg
2000	—	`conf`	Design Issues in Transaction-Time Temporal Object Database Systems. ADBIS-DASFAA Kjetil Nørvåg
2000	—	`conf`	Main-Memory Management in Temporal Object Database Systems. ADBIS-DASFAA Kjetil Nørvåg
2000	C	`conf`	The Vagabond Temporal OID Index: An Index Structure for OID Indexing in Temporal Object Database Systems. IDEAS Kjetil Nørvåg
1999	C	`conf`	Efficient Use of Signatures in Object-Oriented Database Systems. ADBIS Kjetil Nørvåg
1999	A*	`conf`	The Persistent Cache: Improving OID Indexing in Temporal Object-Oriented Database Systems. VLDB Kjetil Nørvåg
1998	C	`conf`	An Analytical Study of Object Identifier Indexing. DEXA Kjetil Nørvåg, Kjell Bratbergsengen
1998	—	`conf`	Optimizing OID Indexing Cost in Temporal Object-Oriented Database Systems. FODO Kjetil Nørvåg, Kjell Bratbergsengen
1997	C	`conf`	Concurrency Control in Distributed Object-Oriented Database Systems. ADBIS Kjetil Nørvåg, Olav Sandstå, Kjell Bratbergsengen
1997	—	`conf`	Improved and Optimized Partitioning Techniques in Database Query Processing. BNCOD Kjell Bratbergsengen, Kjetil Nørvåg
1997	—	`conf`	Log-Only Temporal Object Storage. DEXA Workshop Kjetil Nørvåg, Kjell Bratbergsengen
1997	—	`conf`	Write Optimized Object-Oriented Database Systems. SCCC Kjetil Nørvåg, Kjell Bratbergsengen