Kjetil Nørvåg

ORCID

Publication Activity (10 Years)

Years Active: 1997-2024
Publications (10 Years): 39

Top Venues

Publications

Shiva Shadrooh, Kjetil Nørvåg
SMoTeF: Smurf money laundering detection using temporal order and flow analysis. Appl. Intell. 54 (15-16) (2024)
George S. Theodoropoulos, Kjetil Nørvåg, Christos Doulkeridis
Efficient Semantic Similarity Search over Spatio-textual Data. EDBT (2024)
Genoveva Vargas-Solar, Barbara Catania, Ester Zumpano, Kjetil Nørvåg, Silvia Chiusano, Tania Cerquitelli, Robert Wrembel
Guest editorial: Papers selected from European conference on advances in databases and information systems. Comput. Sci. Inf. Syst. 21 (3) (2024)
Akrivi Vlachou, Christos Doulkeridis, João B. Rocha-Junior, Kjetil Nørvåg
Decisive skyline queries for truly balancing multiple criteria. Data Knowl. Eng. 147 (2023)
Hassan Abedi Firouzjaei, Dhruv Gupta, Kjetil Nørvåg
Diversification of Top-k Geosocial Queries. ADBIS (Short Papers) (2023)
Krisztian Balog, Kjetil Nørvåg, Vinay Setty
Report on the 44th European Conference on Information Retrieval (ECIR 2022): The First Major Hybrid IR Conference. SIGIR Forum 56 (1) (2022)
Akrivi Vlachou, Christos Doulkeridis, João B. Rocha-Junior, Kjetil Nørvåg
On Decisive Skyline Queries. DaWaK (2022)
Thu-Lan Dam, Sean Chester, Kjetil Nørvåg, Quang-Huy Duong
recently-frequent term querying over spatio-temporal textual streams. Inf. Syst. 97 (2021)
Quang-Huy Duong, Heri Ramampiaro, Kjetil Nørvåg, Thu-Lan Dam
Density Guarantee on Finding Multiple Subgraphs and Subtensors. ACM Trans. Knowl. Discov. Data 15 (5) (2021)
Youcef Djenouri, Jerry Chun-Wei Lin, Kjetil Nørvåg, Heri Ramampiaro, Philip S. Yu
Exploring Decomposition for Solving Pattern Mining Problems. ACM Trans. Manag. Inf. Syst. 12 (2) (2021)
Akrivi Vlachou, Christos Doulkeridis, Nikolaos Koutroumanis, Dimitrios Poulopoulos, Kjetil Nørvåg
The SPADES Framework for Scalable Management of Spatio-textual Data. PCI (2020)
Asma Belhadi, Youcef Djenouri, Kjetil Nørvåg, Heri Ramampiaro, Florent Masseglia, Jerry Chun-Wei Lin
Space-time series clustering: Algorithms, taxonomy, and case study on urban smart cities. Eng. Appl. Artif. Intell. 95 (2020)
Stella Maropaki, Sean Chester, Christos Doulkeridis, Kjetil Nørvåg
Diversifying Top-k Point-of-Interest Queries via Collective Social Reach. CIKM (2020)
Youcef Djenouri, Kjetil Nørvåg, Heri Ramampiaro, Jerry Chun-Wei Lin
Fast and Accurate Group Outlier Detection for Trajectory Data. ADBIS (Short Papers) (2020)
Quang-Huy Duong, Heri Ramampiaro, Kjetil Nørvåg
Multiple Dense Subtensor Estimation with High Density Guarantee. ICDE (2020)
Thu-Lan Dam, Heri Ramampiaro, Kjetil Nørvåg, Quang-Huy Duong
Towards efficiently mining closed high utility itemsets from incremental databases. Knowl. Based Syst. 165 (2019)
Quang-Huy Duong, Heri Ramampiaro, Kjetil Nørvåg
Sketching Streaming Histogram Elements using Multiple Weighted Factors. CIKM (2019)
Kjetil Nørvåg, Mirjana Ivanovic, Marite Kirikova, Bernhard Thalheim
Advances in Databases and Information Systems (ADBIS) 2016 & 2017. Inf. Syst. 82 (2019)
Youcef Djenouri, Jerry Chun-Wei Lin, Kjetil Nørvåg, Heri Ramampiaro
Highly Efficient Pattern Mining Based on Transaction Decomposition. ICDE (2019)
Christoph Trattner, Tomasz Kusmierczyk, Kjetil Nørvåg
Investigating and predicting online food recipe upload behavior. Inf. Process. Manag. 56 (3) (2019)
Ozer Ozdikis, Heri Ramampiaro, Kjetil Nørvåg
Locality-adapted kernel densities of term co-occurrences for location prediction of tweets. Inf. Process. Manag. 56 (4) (2019)
Quang-Huy Duong, Heri Ramampiaro, Kjetil Nørvåg, Philippe Fournier-Viger, Thu-Lan Dam
High utility drift detection in quantitative data streams. Knowl. Based Syst. 157 (2018)
Quang-Huy Duong, Heri Ramampiaro, Kjetil Nørvåg
Applying temporal dependence to detect changes in streaming data. Appl. Intell. 48 (12) (2018)
Quang-Huy Duong, Philippe Fournier-Viger, Heri Ramampiaro, Kjetil Nørvåg, Thu-Lan Dam
Efficient high utility itemset mining using buffered utility-lists. Appl. Intell. 48 (7) (2018)
Tomasz Kusmierczyk, Kjetil Nørvåg
On Validation and Predictability of Digital Badges' Influence on Individual Users. AAAI (2018)
Ozer Ozdikis, Heri Ramampiaro, Kjetil Nørvåg
Locality-adapted Kernel Densities for Tweet Localization. SIGIR (2018)
Ozer Ozdikis, Heri Ramampiaro, Kjetil Nørvåg
Spatial Statistics of Term Co-occurrences for Location Prediction of Tweets. ECIR (2018)
Jan R. Benetka, Krisztian Balog, Kjetil Nørvåg
Anticipating Information Needs Based on Check-in Activity. WSDM (2017)
Tomasz Kusmierczyk, Kjetil Nørvåg
Determining Impact of Social Media Badges through Joint Clustering of Temporal Traces and User Features. CoRR (2017)
Orestis Gkorgkas, Akrivi Vlachou, Christos Doulkeridis, Kjetil Nørvåg
Exploratory product search using top-k join queries. Inf. Syst. 64 (2017)
Jan R. Benetka, Krisztian Balog, Kjetil Nørvåg
Towards Building a Knowledge Base of Monetary Transactions from a News Collection. CoRR (2017)
Jan R. Benetka, Krisztian Balog, Kjetil Nørvåg
Anticipating Information Needs Based on Check-in Activity. CoRR (2017)
Jan R. Benetka, Krisztian Balog, Kjetil Nørvåg
Towards Building a Knowledge Base of Monetary Transactions from a News Collection. JCDL (2017)
Mei Saouk, Christos Doulkeridis, Akrivi Vlachou, Kjetil Nørvåg
Efficient processing of top-k joins in MapReduce. IEEE BigData (2016)
Tomasz Kusmierczyk, Kjetil Nørvåg
Online Food Recipe Title Semantics: Combining Nutrient Facts and Topics. CIKM (2016)
Christoph Trattner, Tomasz Kusmierczyk, Kjetil Nørvåg
FOODWEB - Studying Food Consumption and Production Patterns on the Web. ERCIM News 2016 (104) (2016)
Kjetil Nørvåg
Introduction to the TPDL 2016 Doctoral Consortium. Bull. IEEE Tech. Comm. Digit. Libr. 12 (2) (2016)
Sean Chester, Orestis Gkorgkas, Kjetil Nørvåg
Top-k Dominating Queries, in Parallel, in Memory. EDBT (2016)
Tomasz Kusmierczyk, Christoph Trattner, Kjetil Nørvåg
Understanding and Predicting Online Food Recipe Production Patterns. HT (2016)
Orestis Gkorgkas, Akrivi Vlachou, Christos Doulkeridis, Kjetil Nørvåg
Finding the Most Diverse Products using Preference Queries. EDBT (2015)
Santiago Larrain, Christoph Trattner, Denis Parra, Eduardo Graells-Garrido, Kjetil Nørvåg
Good Times Bad Times: A Study on Recency Effects in Collaborative Filtering for Social Tagging. RecSys (2015)
Tomasz Kusmierczyk, Kjetil Nørvåg
Mining Correlations on Massive Bursty Time Series Collections. DASFAA (1) (2015)
Tomasz Kusmierczyk, Christoph Trattner, Kjetil Nørvåg
Temporality in Online Food Recipe Consumption and Production. WWW (Companion Volume) (2015)
Tomasz Kusmierczyk, Christoph Trattner, Kjetil Nørvåg
Temporal Patterns in Online Food Innovation. WWW (Companion Volume) (2015)
Nattiya Kanhabua, Roi Blanco, Kjetil Nørvåg
Temporal Information Retrieval. Found. Trends Inf. Retr. 9 (2) (2015)
Orestis Gkorgkas, Akrivi Vlachou, Christos Doulkeridis, Kjetil Nørvåg
Maximizing Influence of Spatio-Textual Objects Based on Keyword Selection. SSTD (2015)
Jan Rybak, Krisztian Balog, Kjetil Nørvåg
IR Game: How well do you Know Information Retrieval Papers? GamifIR@ECIR (2015)
Jan Rybak, Krisztian Balog, Kjetil Nørvåg
ExperTime: tracking expertise over time. SIGIR (2014)
Dimitrios Kotsakos, Theodoros Lappas, Dimitrios Kotzias, Dimitrios Gunopulos, Nattiya Kanhabua, Kjetil Nørvåg
A burstiness-aware approach for document dating. SIGIR (2014)
Stian Liknes, Akrivi Vlachou, Christos Doulkeridis, Kjetil Nørvåg
APSkyline: Improved Skyline Computation for Multicore Architectures. DASFAA (1) (2014)
Orestis Gkorgkas, Akrivi Vlachou, Christos Doulkeridis, Kjetil Nørvåg
Efficient processing of exploratory top-k joins. SSDBM (2014)
Jan Rybak, Krisztian Balog, Kjetil Nørvåg
Temporal Expertise Profiling. ECIR (2014)
Christos Doulkeridis, Kjetil Nørvåg
A survey of large-scale analytical query processing in MapReduce. VLDB J. 23 (3) (2014)
Orestis Gkorgkas, Kostas Stefanidis, Kjetil Nørvåg
A Framework for Grouping and Summarizing Keyword Search Results. ADBIS (2013)
George Tsatsaronis, Iraklis Varlamis, Nattiya Kanhabua, Kjetil Nørvåg
Temporal Classifiers for Predicting the Expansion of Medical Subject Headings. CICLing (1) (2013)
Akrivi Vlachou, Christos Doulkeridis, Kjetil Nørvåg, Yannis Kotidis
Branch-and-bound algorithm for reverse top-k queries. SIGMOD Conference (2013)
Orestis Gkorgkas, Akrivi Vlachou, Christos Doulkeridis, Kjetil Nørvåg
Discovering Influential Data Objects over Time. SSTD (2013)
Krisztian Balog, Heri Ramampiaro, Naimdjon Takhirov, Kjetil Nørvåg
Multi-step classification approaches to cumulative citation recommendation. OAIR (2013)
Krisztian Balog, Heri Ramampiaro, Kjetil Nørvåg
KBAAA: a web-based toolkit for the assessment and analysis of knowledge base acceleration systems. OAIR (2013)
Marek Ciglan, Michal Laclavik, Kjetil Nørvåg
On community detection in real-world networks and the importance of degree assortativity. KDD (2013)
Kostas Stefanidis, Kjetil Nørvåg
gRecs: Exploiting the Power of Data Mining Techniques for Efficient Computation of Group Recommendations. ERCIM News 2013 (92) (2013)
Kostas Stefanidis, Eirini Ntoutsi, Mihalis Petropoulos, Kjetil Nørvåg, Hans-Peter Kriegel
A Framework for Modeling, Computing and Presenting Time-Aware Recommendations. Trans. Large Scale Data Knowl. Centered Syst. 10 (2013)
Marek Ciglan, Kjetil Nørvåg, Ladislav Hluchý
The SemSets model for ad-hoc semantic list search. WWW (2012)
Robert Neumayer, Krisztian Balog, Kjetil Nørvåg
When Simple is (more than) Good Enough: Effective Semantic Search with (almost) no Semantics. ECIR (2012)
João B. Rocha-Junior, Kjetil Nørvåg
Top-k spatial keyword queries on road networks. EDBT (2012)
Kostas Stefanidis, Irene Ntoutsi, Kjetil Nørvåg, Hans-Peter Kriegel
A Framework for Time-Aware Recommendations. DEXA (2) (2012)
Krisztian Balog, Robert Neumayer, Kjetil Nørvåg
Collection Ranking and Selection for Federated Entity Search. SPIRE (2012)
George Tsatsaronis, Iraklis Varlamis, Kjetil Nørvåg
SemaFor: semantic document indexing using semantic forests. CIKM (2012)
Robert Neumayer, Krisztian Balog, Kjetil Nørvåg
On the Modeling of Entities for Ad-Hoc Entity Search in the Web of Data. ECIR (2012)
Eivind Bjørkelund, Thomas H. Burnett, Kjetil Nørvåg
A study of opinion mining and visualization of hotel reviews. iiWAS (2012)
Nattiya Kanhabua, Kjetil Nørvåg
Learning to rank search results for time-sensitive queries. CIKM (2012)
Kostas Stefanidis, Nafiseh Shabib, Kjetil Nørvåg, John Krogstie
Contextual Recommendations for Groups. ER Workshops (2012)
Christos Doulkeridis, Kjetil Nørvåg
On saying "enough already!" in MapReduce. Cloud-I (2012)
Christos Doulkeridis, Akrivi Vlachou, Kjetil Nørvåg, Yannis Kotidis, Neoklis Polyzotis
Processing of Rank Joins in Highly Distributed Systems. ICDE (2012)
Irene Ntoutsi, Kostas Stefanidis, Kjetil Nørvåg, Hans-Peter Kriegel
gRecs: A Group Recommendation System Based on User Clustering. DASFAA (2) (2012)
Akrivi Vlachou, Christos Doulkeridis, Kjetil Nørvåg
Distributed top-k query processing by exploiting skyline summaries. Distributed Parallel Databases 30 (3-4) (2012)
Nattiya Kanhabua, Kjetil Nørvåg
Estimating query difficulty for news prediction retrieval. CIKM (2012)
Eirini Ntoutsi, Kostas Stefanidis, Kjetil Nørvåg, Hans-Peter Kriegel
Fast Group Recommendations by Applying User Clustering. ER (2012)
Krisztian Balog, Kjetil Nørvåg
On the use of semantic knowledge bases for temporally-aware entity retrieval. ESAIR (2012)
Robert Neumayer, Krisztian Balog, Kjetil Nørvåg
Ranking Distributed Knowledge Repositories. TPDL (2012)
Nattiya Kanhabua, Klaus Berberich, Kjetil Nørvåg
Learning to select a time-aware retrieval model. SIGIR (2012)
Nattiya Kanhabua, Kjetil Nørvåg
Time-based query performance predictors. SIGIR (2011)
Norvald H. Ryeng, Jon Olav Hauglid, Kjetil Nørvåg
Site-autonomous distributed semantic caching. SAC (2011)
João B. Rocha-Junior, Orestis Gkorgkas, Simon Jonassen, Kjetil Nørvåg
Efficient Processing of Top-k Spatial Keyword Queries. SSTD (2011)
Akrivi Vlachou, Christos Doulkeridis, Yannis Kotidis, Kjetil Nørvåg
Monochromatic and Bichromatic Reverse Top-k Queries. IEEE Trans. Knowl. Data Eng. 23 (8) (2011)
Robert Neumayer, Kjetil Nørvåg
Evaluation of Feature Combination Approaches for Text Categorisation. ISMIS (2011)
Akrivi Vlachou, Christos Doulkeridis, Kjetil Nørvåg
Monitoring reverse top-k queries over mobile devices. MobiDE (2011)
João B. Rocha-Junior, Akrivi Vlachou, Christos Doulkeridis, Kjetil Nørvåg
Efficient execution plans for distributed skyline query processing. EDBT (2011)
Robert Neumayer, Christos Doulkeridis, Kjetil Nørvåg
A hybrid approach for estimating document frequencies in unstructured P2P networks. Inf. Syst. 36 (3) (2011)
Robert Neumayer, George Tsatsaronis, Kjetil Nørvåg
TRUMIT: A Tool to Support Large-Scale Mining of Text Association Rules. ECML/PKDD (3) (2011)
Norvald H. Ryeng, Akrivi Vlachou, Christos Doulkeridis, Kjetil Nørvåg
Query Processing with Caching. DASFAA (2) (2011)
George Tsatsaronis, Iraklis Varlamis, Sunna Torge, Matthias Reimann, Kjetil Nørvåg, Michael Schroeder, Matthias Zschunke
How to Become a Group Leader? or Modeling Author Types Based on Graph Mining. TPDL (2011)
Robert Neumayer, Rudolf Mayer, Kjetil Nørvåg
Combination of Feature Selection Methods for Text Categorisation. ECIR (2011)
Nattiya Kanhabua, Kjetil Nørvåg
A comparison of time-aware ranking methods. SIGIR (2011)
Nattiya Kanhabua, Kjetil Nørvåg
QUEST: Query Expansion Using Synonyms over Time. ECML/PKDD (3) (2010)
Nattiya Kanhabua, Kjetil Nørvåg
Determining Time of Queries for Re-ranking Search Results. ECDL (2010)
Marek Ciglan, Kjetil Nørvåg
Fast Detection of Size-Constrained Communities in Large Networks. WISE (2010)
Akrivi Vlachou, Christos Doulkeridis, Yannis Kotidis, Kjetil Nørvåg
Reverse top-k queries. ICDE (2010)
Marek Ciglan, Etienne Riviere, Kjetil Nørvåg
Learning to Find Interesting Connections in Wikipedia. APWeb (2010)
Christos Doulkeridis, Akrivi Vlachou, Kjetil Nørvåg, Yannis Kotidis, Michalis Vazirgiannis
On the selectivity of multidimensional routing indices. CIKM (2010)

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Publication Activity (10 Years)

Top Topics

Top Venues

Kjetil Nørvåg