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Språkvelger

Norsk

Kjetil Nørvåg

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Kjetil Nørvåg

Professor
Department of Computer Science

noervaag@ntnu.no
Gamle fysikk, 253, Gløshaugen, Sem Sælands vei 5
Google Scholar Homepage CV
About Publications Teaching

About

Kjetil Nørvåg is a professor at the Department of Computer and Information Science at NTNU. He is affiliated with the Data and artificial intelligence group, where his main research interests include distributed and parallel database systems, query processing, information retrieval, and Big Data in general.

He has been involved in teaching on a wide range of topics, including Data mining, Big Data architecture, Advanced databases, Information retrieval, Distributed systems, Data modelling and database systems, Operating systems, Algorithms and data structures, Computer architecture, and Computer systems.

Nørvåg has been involved in a number of projects during recent years, including:

  • Norwegian Center for Research-based AI Innovation (NorwAI), 26M Euro (Centre for Research-based Innovation, funding from NTNU, Norwegian Research Council, and industry partners), 2020-2028.
  • Big Data & Machine Learning, 0.5M Euro per year (funded by DNB), 2018-2023.
  • Trondheim Analytica (NTNU Digital Transformation program), 2018-2022. 
  • ExiBiDa: Exploring new dimensions in Big Data, funding one PhD student and one postdoc, approx. 1M Euro (Norwegian Research Council), 2015-2019.
  • CoupledDB: High-Performance Indexing for Emerging GPU-Coupled Databases, 208K Euro (EU H2020-MSCA), 2017-2019.
  • MUSED: Multi-Source Event Detection, 7M NOK (NTNU funded), 2017-2021. 
  • CloudIX: Cloud-based Indexing and Query Processing, 212K Euro (EU FP7 with partial funding from the Norwegian Research Council), 2011-2013.
  • COMIDOR: Cooperative Mining of Independent Document Repositories, funding two PhD students and two postdocs, approx. 1.1M Euro (Norwegian Research Council), 2008-2013.
  • DASCOSA: Database Support for Computational Science Applications,, funding one PhD student and one postdoc, approx. 400K Euro (Norwegian Research Council), 2007-2012.
  • LongRec: Records Management over Decades (Consortium led by DNV), approx. 2.1M Euro (partially funded by the Norwegian Research Council), 2007-2011.

Nørvåg has published close to 200 publications.  For a complete list, including links to preprints of the papers, please check out his CV

Publications

  • Chronological
  • By category
  • See all publications in Cristin

2025

  • Cerquitelli, Tania; Vargas-Solar, Genoveva; Chiusano, Silvia; Apiletti, Daniele; Belhajjame, Khalid; Berta, Matteo. (2025) Data Analytics solutions for Real-LIfe APplications (DARLI-AP). CEUR Workshop Proceedings
    Editorial
  • Nanni, Mirco; Pelekis, Nikos; Tampakis, Panagiotis; Zeitouni, Karine; Sakr, Mahmoud; Renso, Chiara. (2025) Big Mobility Data Analytics (BMDA). CEUR Workshop Proceedings
    Editorial
  • Abedi Firouzjaei, Hassan; Nørvåg, Kjetil; Gupta, Dhruv. (2025) Unveiling Novel Patterns of User Interactions in Online Communities. Doctoral theses at NTNU (223)
    Doctoral dissertation

2024

  • Shadrooh, Shiva; Nørvåg, Kjetil. (2024) SMoTeF: Smurf money laundering detection using temporal order and flow analysis. Applied intelligence (Boston)
    Academic article
  • Shadrooh, Shiva; Nørvåg, Kjetil. (2024) Datis: data augmentation for trust intensity prediction in incomplete signed networks. Social Network Analysis and Mining
    Academic article

2023

  • Theodoropoulos, George S.; Nørvåg, Kjetil; Doulkeridis, Christos. (2023) Efficient Semantic Similarity Search over Spatio-textual Data. OpenProceedings
    Academic chapter/article/Conference paper
  • Vlachou, Akrivi; Doulkeridis, Christos; Rocha-Junior, Joao B.; Nørvåg, Kjetil. (2023) Decisive skyline queries for truly balancing multiple criteria. Data & Knowledge Engineering
    Academic article

2021

  • Duong, Quang-Huy; Ramampiaro, Heri; Nørvåg, Kjetil; Dam, Thu-Lan. (2021) Density Guarantee on Finding Multiple Subgraphs and Subtensors. ACM Transactions on Knowledge Discovery from Data
    Academic article
  • Dam, Thu-Lan; Chester, Sean; Nørvåg, Kjetil; Duong, Quang-Huy. (2021) Efficient top-k recently-frequent term querying over spatio-temporal textual streams. Information Systems
    Academic article

2020

  • Duong, Quang-Huy; Ramampiaro, Heri; Nørvåg, Kjetil. (2020) Multiple Dense Subtensor Estimation with High Density Guarantee. IEEE Press
    Academic chapter/article/Conference paper
  • Maropaki, Stella; Chester, Sean; Doulkeridis, Christos; Nørvåg, Kjetil. (2020) Diversifying Top-k Point-of-Interest Queries via Collective Social Reach. ACM Publications
    Academic chapter/article/Conference paper

2019

  • Djenouri, Youcef; Lin, Chun Wei; Nørvåg, Kjetil; Ramampiaro, Heri. (2019) Highly Efficient Pattern Mining Based on Transaction Decomposition. IEEE Press
    Academic chapter/article/Conference paper
  • Trattner, Christoph; Kusmierczyk, Tomasz; Nørvåg, Kjetil. (2019) Investigating and predicting online food recipe upload behavior. Information Processing & Management
    Academic article
  • Özdikis, Özer; Ramampiaro, Heri; Nørvåg, Kjetil. (2019) Locality-adapted kernel densities of term co-occurrences for location prediction of tweets. Information Processing & Management
    Academic article
  • Duong, Quang-Huy; Ramampiaro, Heri; Nørvåg, Kjetil. (2019) Sketching Streaming Histogram Elements using Multiple Weighted Factors. ACM Publications
    Academic chapter/article/Conference paper

2018

  • Kusmierczyk, Tomasz; Nørvåg, Kjetil. (2018) On Validation and Predictability of Digital Badges’ Influence on Individual Users. Proceedings of the AAAI Conference on Artificial Intelligence
    Academic article
  • Duong, Quang-Huy; Ramampiaro, Heri; Nørvåg, Kjetil. (2018) Applying temporal dependence to detect changes in streaming data. Applied intelligence (Boston)
    Academic article
  • Duong, Quang-Huy; Ramampiaro, Heri; Nørvåg, Kjetil; Fournier-Viger, Philippe; Dam, Thu-Lan. (2018) High utility drift detection in quantitative data streams. Knowledge-Based Systems
    Academic article
  • Özdikis, Özer; Ramampiaro, Heri; Nørvåg, Kjetil. (2018) Locality-adapted Kernel Densities for Tweet Localization. ACM Publications
    Academic chapter/article/Conference paper

2017

  • Benetka, Jan; Balog, Krisztian; Nørvåg, Kjetil. (2017) Anticipating Information Needs Based on Check-in Activity. ACM Publications
    Academic chapter/article/Conference paper
  • Gkorgkas, Orestis; Vlachou, Akrivi; Doulkeridis, Christos; Nørvåg, Kjetil. (2017) Exploratory product search using top-k join queries. Information Systems
    Academic article

2016

  • Kusmierczyk, Tomasz; Nørvåg, Kjetil. (2016) Online Food Recipe Title Semantics: Combining Nutrient Facts and Topics. ACM Publications
    Academic chapter/article/Conference paper
  • Saouk, Mei; Doulkeridis, Christos; Vlachou, Akrivi; Nørvåg, Kjetil. (2016) Efficient processing of top-k joins in MapReduce. IEEE (Institute of Electrical and Electronics Engineers)
    Academic chapter/article/Conference paper
  • Chester, Sean; Gkorgkas, Orestis; Nørvåg, Kjetil. (2016) Top-k Dominating Queries, in Parallel, in Memory. OpenProceedings
    Academic chapter/article/Conference paper

2015

  • Larrain, Santiago; Trattner, Christoph; Parra, Denis; Graells-Garrido, Eduardo; Nørvåg, Kjetil. (2015) Good Times Bad Times: A Study on Recency Effects in Collaborative Filtering for Social Tagging. ACM Publications
    Other
  • Kanhabua, Nattiya; Blanco, Roi; Nørvåg, Kjetil. (2015) Temporal Information Retrieval. Now Publishers Inc. Now Publishers Inc.
    Academic monograph
  • Kusmierczyk, Tomasz; Trattner, Christoph; Nørvåg, Kjetil. (2015) Temporality in Online Food Recipe Consumption and Production. ACM Publications
    Other
  • Gkorgkas, Orestis; Vlachou, Akrivi; Doulkeridis, Christos; Nørvåg, Kjetil. (2015) Finding the Most Diverse Products using Preference Queries. OpenProceedings
    Academic chapter/article/Conference paper

2014

  • Doulkeridis, Christos; Nørvåg, Kjetil. (2014) A survey of large-scale analytical query processing in MapReduce. The VLDB journal
    Academic literature review
  • Kotsakos, Dimitrios; Lappas, Theodoros; Kotzias, Dimitrios; Gunopulos, Dimitrios; Kanhabua, Nattiya; Nørvåg, Kjetil. (2014) A burstiness-aware approach for document dating. ACM Publications
    Academic chapter/article/Conference paper

2013

  • Vlachou, Akrivi; Doulkeridis, Christos; Nørvåg, Kjetil; Kotidis, Yannis. (2013) Branch-and-bound algorithm for reverse top-k queries. ACM Publications
    Academic chapter/article/Conference paper
  • Ciglan, Marek; Laclavik, Michal; Nørvåg, Kjetil. (2013) On community detection in real-world networks and the importance of degree assortativity. ACM Publications
    Academic chapter/article/Conference paper

2012

  • Rocha-Junior, Joao B.; Nørvåg, Kjetil. (2012) Top-k spatial keyword queries on road networks. ACM Publications
    Academic chapter/article/Conference paper
  • Ciglan, Marek; Nørvåg, Kjetil; Hluchy, Ladislav. (2012) The SemSets model for ad-hoc semantic list search. ACM Publications
    Academic chapter/article/Conference paper
  • Vlachou, Akrivi; Doulkeridis, Christos; Nørvåg, Kjetil. (2012) Distributed top-k query processing by exploiting skyline summaries. Distributed and parallel databases
    Academic article

2011

  • Rocha-Junior, Joao B.; Vlachou, Akrivi; Doulkeridis, Christos; Nørvåg, Kjetil. (2011) Efficient Execution Plans for Distributed Skyline Query Processing. ACM Publications
    Academic chapter/article/Conference paper
  • Vlachou, Akrivi; Doulkeridis, Christos; Kotidis, Yannis; Nørvåg, Kjetil. (2011) Monochromatic and Bichromatic Reverse Top-k Queries. IEEE Transactions on Knowledge and Data Engineering
    Academic article

2010

  • Zhang, Xiangliang; Wang, Wei; Nørvåg, Kjetil; Sebag, Michele. (2010) K-AP: Generating Specified K Clusters by Efficient Affinity Propagation. IEEE (Institute of Electrical and Electronics Engineers)
    Academic chapter/article/Conference paper
  • Hauglid, Jon Olav; Ryeng, Norvald Hegelstad; Nørvåg, Kjetil. (2010) DYFRAM: dynamic fragmentation and replica management in distributed database systems. Distributed and parallel databases
    Academic article
  • Vlachou, Akrivi; Doulkeridis, Christos; Nørvåg, Kjetil; Kotidis, Yannis. (2010) Identifying the Most Influential Data Objects with Reverse Top-k Queries. Proceedings of the VLDB Endowment
    Academic article
  • Ciglan, Marek; Nørvåg, Kjetil. (2010) WikiPop: personalized event detection system based on Wikipedia page view statistics. ACM Publications
    Academic chapter/article/Conference paper
  • Doulkeridis, Christos; Vlachou, Akrivi; Nørvåg, Kjetil; Kotidis, Yannis; Vazirgiannis, Michalis. (2010) On the selectivity of multidimensional routing indices. ACM Publications
    Academic chapter/article/Conference paper
  • Vlachou, Akrivi; Doulkeridis, Christos; Kotidis, Yannis; Nørvåg, Kjetil. (2010) Reverse Top-k Queries. IEEE Press
    Academic chapter/article/Conference paper
  • Rocha-Junior, Joao B.; Vlachou, Akrivi; Doulkeridis, Christos; Nørvåg, Kjetil. (2010) Efficient Processing of Top-k Spatial Preference Queries. Proceedings of the VLDB Endowment
    Academic article

2009

  • Doulkeridis, Christos; Vlachou, Akrivi; Nørvåg, Kjetil; Kotidis, Yannis; Vazirgiannis, Michalis. (2009) Multidimensional Routing Indices for Efficient Distributed Query Processing. Association for Computing Machinery (ACM)
    Academic chapter/article/Conference paper
  • Hauglid, Jon Olav; Nørvåg, Kjetil; Ryeng, Norvald Hegelstad. (2009) Efficient and Robust Database Support for Data-Intensive Applications in Dynamic Environments. IEEE (Institute of Electrical and Electronics Engineers)
    Academic chapter/article/Conference paper

2008

  • Vlachou, Akrivi; Doulkeiridis, Christos; Nørvåg, Kjetil; Vazirgiannis, Michalis. (2008) On efficient top-k query processing in highly distributed environments. ACM Publications
    Academic chapter/article/Conference paper
  • Hauglid, Jon Olav; Nørvåg, Kjetil. (2008) PROQID: Partial Restarts of Queries in Distributed Databases. Association for Computing Machinery (ACM)
    Academic chapter/article/Conference paper
  • Vlachou, Akrivi; Doulkeridis, Christos; Nørvåg, Kjetil; Vazirgiannis, Michalis. (2008) Skyline-based Peer-to-Peer Top-k Query Processing. IEEE (Institute of Electrical and Electronics Engineers)
    Academic chapter/article/Conference paper

2007

  • Doulkeridis, Christos; Nørvåg, Kjetil; Vazirgiannis, Michalis. (2007) DESENT: decentralized and distributed semantic overlay generation in P2P networks. IEEE Journal on Selected Areas in Communications
    Academic article

Journal publications

  • Cerquitelli, Tania; Vargas-Solar, Genoveva; Chiusano, Silvia; Apiletti, Daniele; Belhajjame, Khalid; Berta, Matteo. (2025) Data Analytics solutions for Real-LIfe APplications (DARLI-AP). CEUR Workshop Proceedings
    Editorial
  • Nanni, Mirco; Pelekis, Nikos; Tampakis, Panagiotis; Zeitouni, Karine; Sakr, Mahmoud; Renso, Chiara. (2025) Big Mobility Data Analytics (BMDA). CEUR Workshop Proceedings
    Editorial
  • Shadrooh, Shiva; Nørvåg, Kjetil. (2024) SMoTeF: Smurf money laundering detection using temporal order and flow analysis. Applied intelligence (Boston)
    Academic article
  • Shadrooh, Shiva; Nørvåg, Kjetil. (2024) Datis: data augmentation for trust intensity prediction in incomplete signed networks. Social Network Analysis and Mining
    Academic article
  • Vlachou, Akrivi; Doulkeridis, Christos; Rocha-Junior, Joao B.; Nørvåg, Kjetil. (2023) Decisive skyline queries for truly balancing multiple criteria. Data & Knowledge Engineering
    Academic article
  • Duong, Quang-Huy; Ramampiaro, Heri; Nørvåg, Kjetil; Dam, Thu-Lan. (2021) Density Guarantee on Finding Multiple Subgraphs and Subtensors. ACM Transactions on Knowledge Discovery from Data
    Academic article
  • Dam, Thu-Lan; Chester, Sean; Nørvåg, Kjetil; Duong, Quang-Huy. (2021) Efficient top-k recently-frequent term querying over spatio-temporal textual streams. Information Systems
    Academic article
  • Trattner, Christoph; Kusmierczyk, Tomasz; Nørvåg, Kjetil. (2019) Investigating and predicting online food recipe upload behavior. Information Processing & Management
    Academic article
  • Özdikis, Özer; Ramampiaro, Heri; Nørvåg, Kjetil. (2019) Locality-adapted kernel densities of term co-occurrences for location prediction of tweets. Information Processing & Management
    Academic article
  • Kusmierczyk, Tomasz; Nørvåg, Kjetil. (2018) On Validation and Predictability of Digital Badges’ Influence on Individual Users. Proceedings of the AAAI Conference on Artificial Intelligence
    Academic article
  • Duong, Quang-Huy; Ramampiaro, Heri; Nørvåg, Kjetil. (2018) Applying temporal dependence to detect changes in streaming data. Applied intelligence (Boston)
    Academic article
  • Duong, Quang-Huy; Ramampiaro, Heri; Nørvåg, Kjetil; Fournier-Viger, Philippe; Dam, Thu-Lan. (2018) High utility drift detection in quantitative data streams. Knowledge-Based Systems
    Academic article
  • Gkorgkas, Orestis; Vlachou, Akrivi; Doulkeridis, Christos; Nørvåg, Kjetil. (2017) Exploratory product search using top-k join queries. Information Systems
    Academic article
  • Doulkeridis, Christos; Nørvåg, Kjetil. (2014) A survey of large-scale analytical query processing in MapReduce. The VLDB journal
    Academic literature review
  • Vlachou, Akrivi; Doulkeridis, Christos; Nørvåg, Kjetil. (2012) Distributed top-k query processing by exploiting skyline summaries. Distributed and parallel databases
    Academic article
  • Vlachou, Akrivi; Doulkeridis, Christos; Kotidis, Yannis; Nørvåg, Kjetil. (2011) Monochromatic and Bichromatic Reverse Top-k Queries. IEEE Transactions on Knowledge and Data Engineering
    Academic article
  • Hauglid, Jon Olav; Ryeng, Norvald Hegelstad; Nørvåg, Kjetil. (2010) DYFRAM: dynamic fragmentation and replica management in distributed database systems. Distributed and parallel databases
    Academic article
  • Vlachou, Akrivi; Doulkeridis, Christos; Nørvåg, Kjetil; Kotidis, Yannis. (2010) Identifying the Most Influential Data Objects with Reverse Top-k Queries. Proceedings of the VLDB Endowment
    Academic article
  • Rocha-Junior, Joao B.; Vlachou, Akrivi; Doulkeridis, Christos; Nørvåg, Kjetil. (2010) Efficient Processing of Top-k Spatial Preference Queries. Proceedings of the VLDB Endowment
    Academic article
  • Doulkeridis, Christos; Nørvåg, Kjetil; Vazirgiannis, Michalis. (2007) DESENT: decentralized and distributed semantic overlay generation in P2P networks. IEEE Journal on Selected Areas in Communications
    Academic article

Books

  • Kanhabua, Nattiya; Blanco, Roi; Nørvåg, Kjetil. (2015) Temporal Information Retrieval. Now Publishers Inc. Now Publishers Inc.
    Academic monograph

Part of book/report

  • Theodoropoulos, George S.; Nørvåg, Kjetil; Doulkeridis, Christos. (2023) Efficient Semantic Similarity Search over Spatio-textual Data. OpenProceedings
    Academic chapter/article/Conference paper
  • Duong, Quang-Huy; Ramampiaro, Heri; Nørvåg, Kjetil. (2020) Multiple Dense Subtensor Estimation with High Density Guarantee. IEEE Press
    Academic chapter/article/Conference paper
  • Maropaki, Stella; Chester, Sean; Doulkeridis, Christos; Nørvåg, Kjetil. (2020) Diversifying Top-k Point-of-Interest Queries via Collective Social Reach. ACM Publications
    Academic chapter/article/Conference paper
  • Djenouri, Youcef; Lin, Chun Wei; Nørvåg, Kjetil; Ramampiaro, Heri. (2019) Highly Efficient Pattern Mining Based on Transaction Decomposition. IEEE Press
    Academic chapter/article/Conference paper
  • Duong, Quang-Huy; Ramampiaro, Heri; Nørvåg, Kjetil. (2019) Sketching Streaming Histogram Elements using Multiple Weighted Factors. ACM Publications
    Academic chapter/article/Conference paper
  • Özdikis, Özer; Ramampiaro, Heri; Nørvåg, Kjetil. (2018) Locality-adapted Kernel Densities for Tweet Localization. ACM Publications
    Academic chapter/article/Conference paper
  • Benetka, Jan; Balog, Krisztian; Nørvåg, Kjetil. (2017) Anticipating Information Needs Based on Check-in Activity. ACM Publications
    Academic chapter/article/Conference paper
  • Kusmierczyk, Tomasz; Nørvåg, Kjetil. (2016) Online Food Recipe Title Semantics: Combining Nutrient Facts and Topics. ACM Publications
    Academic chapter/article/Conference paper
  • Saouk, Mei; Doulkeridis, Christos; Vlachou, Akrivi; Nørvåg, Kjetil. (2016) Efficient processing of top-k joins in MapReduce. IEEE (Institute of Electrical and Electronics Engineers)
    Academic chapter/article/Conference paper
  • Chester, Sean; Gkorgkas, Orestis; Nørvåg, Kjetil. (2016) Top-k Dominating Queries, in Parallel, in Memory. OpenProceedings
    Academic chapter/article/Conference paper
  • Larrain, Santiago; Trattner, Christoph; Parra, Denis; Graells-Garrido, Eduardo; Nørvåg, Kjetil. (2015) Good Times Bad Times: A Study on Recency Effects in Collaborative Filtering for Social Tagging. ACM Publications
    Other
  • Kusmierczyk, Tomasz; Trattner, Christoph; Nørvåg, Kjetil. (2015) Temporality in Online Food Recipe Consumption and Production. ACM Publications
    Other
  • Gkorgkas, Orestis; Vlachou, Akrivi; Doulkeridis, Christos; Nørvåg, Kjetil. (2015) Finding the Most Diverse Products using Preference Queries. OpenProceedings
    Academic chapter/article/Conference paper
  • Kotsakos, Dimitrios; Lappas, Theodoros; Kotzias, Dimitrios; Gunopulos, Dimitrios; Kanhabua, Nattiya; Nørvåg, Kjetil. (2014) A burstiness-aware approach for document dating. ACM Publications
    Academic chapter/article/Conference paper
  • Vlachou, Akrivi; Doulkeridis, Christos; Nørvåg, Kjetil; Kotidis, Yannis. (2013) Branch-and-bound algorithm for reverse top-k queries. ACM Publications
    Academic chapter/article/Conference paper
  • Ciglan, Marek; Laclavik, Michal; Nørvåg, Kjetil. (2013) On community detection in real-world networks and the importance of degree assortativity. ACM Publications
    Academic chapter/article/Conference paper
  • Rocha-Junior, Joao B.; Nørvåg, Kjetil. (2012) Top-k spatial keyword queries on road networks. ACM Publications
    Academic chapter/article/Conference paper
  • Ciglan, Marek; Nørvåg, Kjetil; Hluchy, Ladislav. (2012) The SemSets model for ad-hoc semantic list search. ACM Publications
    Academic chapter/article/Conference paper
  • Rocha-Junior, Joao B.; Vlachou, Akrivi; Doulkeridis, Christos; Nørvåg, Kjetil. (2011) Efficient Execution Plans for Distributed Skyline Query Processing. ACM Publications
    Academic chapter/article/Conference paper
  • Zhang, Xiangliang; Wang, Wei; Nørvåg, Kjetil; Sebag, Michele. (2010) K-AP: Generating Specified K Clusters by Efficient Affinity Propagation. IEEE (Institute of Electrical and Electronics Engineers)
    Academic chapter/article/Conference paper
  • Ciglan, Marek; Nørvåg, Kjetil. (2010) WikiPop: personalized event detection system based on Wikipedia page view statistics. ACM Publications
    Academic chapter/article/Conference paper
  • Doulkeridis, Christos; Vlachou, Akrivi; Nørvåg, Kjetil; Kotidis, Yannis; Vazirgiannis, Michalis. (2010) On the selectivity of multidimensional routing indices. ACM Publications
    Academic chapter/article/Conference paper
  • Vlachou, Akrivi; Doulkeridis, Christos; Kotidis, Yannis; Nørvåg, Kjetil. (2010) Reverse Top-k Queries. IEEE Press
    Academic chapter/article/Conference paper
  • Doulkeridis, Christos; Vlachou, Akrivi; Nørvåg, Kjetil; Kotidis, Yannis; Vazirgiannis, Michalis. (2009) Multidimensional Routing Indices for Efficient Distributed Query Processing. Association for Computing Machinery (ACM)
    Academic chapter/article/Conference paper
  • Hauglid, Jon Olav; Nørvåg, Kjetil; Ryeng, Norvald Hegelstad. (2009) Efficient and Robust Database Support for Data-Intensive Applications in Dynamic Environments. IEEE (Institute of Electrical and Electronics Engineers)
    Academic chapter/article/Conference paper
  • Vlachou, Akrivi; Doulkeiridis, Christos; Nørvåg, Kjetil; Vazirgiannis, Michalis. (2008) On efficient top-k query processing in highly distributed environments. ACM Publications
    Academic chapter/article/Conference paper
  • Hauglid, Jon Olav; Nørvåg, Kjetil. (2008) PROQID: Partial Restarts of Queries in Distributed Databases. Association for Computing Machinery (ACM)
    Academic chapter/article/Conference paper
  • Vlachou, Akrivi; Doulkeridis, Christos; Nørvåg, Kjetil; Vazirgiannis, Michalis. (2008) Skyline-based Peer-to-Peer Top-k Query Processing. IEEE (Institute of Electrical and Electronics Engineers)
    Academic chapter/article/Conference paper

Report

  • Abedi Firouzjaei, Hassan; Nørvåg, Kjetil; Gupta, Dhruv. (2025) Unveiling Novel Patterns of User Interactions in Online Communities. Doctoral theses at NTNU (223)
    Doctoral dissertation

Teaching

Courses

  • TDT4305 - Big Data Architecture
  • DT8116 - Mining of Massive Datasets

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