Tomasz Wiktorski

Professor

Tomasz Wiktorski

Contact

Telephone: 51832061

Email: tomasz.wiktorski@uis.no

Room: KE E-446

Department

Faculty of Science and Technology

Department of Electrical Engineering and Computer Science

About me

Study Program Manager for MSc and PhD programs in Computer Science and Data Science.
My research focuses on analysis of large time series data combining conventional time series methods and deep learning approaches with data-intensive techniques from other domains. Primary application areas include:

  • biomedical data analysis (in particular: sport watches and other personal monitoring devices);
  • oil and gas drilling process automation and optimization;
  • prediction and optimization in energy and petroleum systems;
  • monitoring and optimization of data centers and cloud infrastructures;
  • other large time series data (e.g. sensor networks, smart city).


Complimentary research interests include development and evaluation of data science and other types of data-centered curricula and programs. Primarily in higher education, but also in early-stage schooling setting.
Thought courses:

  • DAT500 - Data-intensive Systems 2013-now
  • DAT220 - Databases 2017-2018
  • MID270 - Integrated Operations and Semantic Web Technologies 2011-2012

Publications

Vitenskapelige publikasjoner

Ploog, Helga Maria; Wiktorski, Tomasz

(2024)

The intentions of the designers of digital educational tools in early childhood education.

International Journal of Child-Computer Interaction.

ISSN 2212-8689.

Volum 40.

DOI: 10.1016/j.ijcci.2024.100653

Bjørkavoll-Bergseth, Magnus; Erevik, Christine Bjørkvik; Kleiven, Øyunn; Wiktorski, Tomasz; Auestad, Bjørn Henrik; Skadberg, Øyvind; Aakre, Kristin Moberg; Eijsvogels, Thijs M. H.; Ørn, Stein

(2024)

The relationship between workload and exercise-induced cardiac troponin elevations is influenced by non-obstructive coronary atherosclerosis.

Scandinavian Journal of Medicine & Science in Sports.

ISSN 0905-7188.

Volum 34.

Hefte 5.

DOI: 10.1111/sms.14667

Pacis, Felix James Cardano; Ambrus, Adrian; Alyaev, Sergey; Khosravanian, Rasool; Kristiansen, Tron Golder; Wiktorski, Tomasz

(2023)

Improving predictive models for rate of penetration in real drilling operations through transfer learning.

Journal of Computational Science.

ISSN 1877-7503.

Volum 72.

Hefte 102100.

DOI: 10.1016/j.jocs.2023.102100

Svane, Jakob; Wiktorski, Tomasz; Ørn, Stein; Eftestøl, Trygve Christian

(2023)

Recurrent Neural Networks for Artifact Correction in HRV Data During Physical Exercise.

Nordic Machine Intelligence (NMI).

ISSN 2703-9196.

Volum 3.

Hefte 1.

s.1-12.

DOI: 10.5617/nmi.10140

Svane, Jakob; Wiktorski, Tomasz; Ørn, Stein; Eftestøl, Trygve Christian

(2023)

Optimizing support vector machines and autoregressive integrated moving average methods for heart rate variability data correction.

MethodsX.

ISSN 2215-0161.

Volum 11.

DOI: 10.1016/j.mex.2023.102381

Królak, Aleksandra; Wiktorski, Tomasz; Żmudzińska, Aleksandra

(2023)

Automatic analysis of X (Twitter) data for supporting depression diagnosis.

Human Technology.

ISSN 1795-6889.

Volum 19.

Hefte 3.

s.370-399.

DOI: 10.14254/1795-6889.2023.19-3.4

Arief, Hasan Asyari; Thomas, Peter; Wiktorski, Tomasz

(2022)

Better Modeling Out-of-Distribution Regression on Distributed Acoustic Sensor Data Using Anchored Hidden State Mixup.

IEEE Transactions on Industrial Informatics.

ISSN 1551-3203.

Volum 19.

Hefte 1.

s.296-305.

DOI: 10.1109/TII.2022.3154783

Pacis, Felix James Cardano; Alyaev, Sergey; Ambrus, Adrian; Wiktorski, Tomasz

(2022)

Transfer Learning Approach to Prediction of Rate of Penetration in Drilling.

Lecture Notes in Computer Science (LNCS).

ISSN 0302-9743.

Volum 13351.

s.358-371.

DOI: 10.1007/978-3-031-08754-7_44

Ambrus, Adrian; Alyaev, Sergey; Jahani, Nazanin; Pacis, Felix James Cardano; Wiktorski, Tomasz

(2022)

Rate of Penetration Prediction Using Quantile Regression Deep Neural Networks. I: Proceedings of ASME 2022 41st International Conference on Ocean, Offshore & Arctic Engineering Volume 10 : Petroleum technology.

The American Society of Mechanical Engineers (ASME).

ISBN 978-0-7918-8595-6.

DOI: 10.1115/OMAE2022-79046

Arief, Hasan Asyari; Wiktorski, Tomasz; Thomas, Peter

(2021)

A Survey on Distributed Fibre Optic Sensor Data Modelling Techniques and Machine Learning Algorithms for Multiphase Fluid Flow Estimation.

Sensors.

ISSN 1424-8220.

Volum 21.

Hefte 8.

DOI: 10.3390/s21082801

Bjørkavoll-Bergseth, Magnus; Erevik, Christine Bjørkvik; Kleiven, Øyunn; Eijsvogels, Thijs M. H.; Skadberg, Øyvind; Frøysa, Vidar; Wiktorski, Tomasz; Auestad, Bjørn Henrik; Edvardsen, Thor; Aakre, Kristin Moberg; Ørn, Stein

(2021)

Determinants of interindividual variation in exercise-induced cardiac troponin I levels.

Journal of the American Heart Association (JAHA).

ISSN 2047-9980.

Volum 10.

Hefte 17.

s.1-14.

DOI: 10.1161/JAHA.121.021710

Tunkiel, Andrzej Tadeusz; Sui, Dan; Wiktorski, Tomasz

(2021)

Impact of data pre-processing techniques on recurrent neural network performance in context of real-time drilling logs in an automated prediction framework.

Journal of Petroleum Science and Engineering.

ISSN 0920-4105.

DOI: 10.1016/j.petrol.2021.109760

Demchenko, Yuri; Juan Jose, Cuadrado Gallego; Brewer, Steve; Wiktorski, Tomasz

(2021)

EDISON Data Science Framework (EDSF): Addressing Demand for Data Science and Analytics Competences for the Data Driven Digital Economy.

IEEE Global Engineering Education Conference, EDUCON.

ISSN 2165-9559.

s.1682-1687.

DOI: 10.1109/EDUCON46332.2021.9453997

Tunkiel, Andrzej Tadeusz; Sui, Dan; Wiktorski, Tomasz

(2020)

Data-driven sensitivity analysis of complex machine learning models: A case study of directional drilling.

Journal of Petroleum Science and Engineering.

ISSN 0920-4105.

Volum 195.

DOI: 10.1016/j.petrol.2020.107630

Wiktorski, Tomasz; Królak, Aleksandra; Rosińska, Karolina; Strumillo, Pawel; Lin, Jerry Chun-Wei

(2020)

Visualization of generic utility of sequential patterns.

IEEE Access.

ISSN 2169-3536.

Volum 8.

s.78004-78014.

DOI: 10.1109/ACCESS.2020.2989165

Wiktorski, Tomasz; Bjørkavoll-Bergseth, Magnus; Ørn, Stein

(2020)

Methods for preprocessing time and distance series data from personal monitoring devices.

MethodsX.

ISSN 2215-0161.

Volum 7.

DOI: 10.1016/j.mex.2020.100959

Tunkiel, Andrzej Tadeusz; Sui, Dan; Wiktorski, Tomasz

(2020)

Reference Dataset for Rate of Penetration Benchmarking.

Journal of Petroleum Science and Engineering.

ISSN 0920-4105.

DOI: 10.1016/j.petrol.2020.108069

Tunkiel, Andrzej Tadeusz; Sui, Dan; Wiktorski, Tomasz

(2020)

Training-while-drilling approach to inclination prediction in directional drilling utilizing recurrent neural networks.

Journal of Petroleum Science and Engineering.

ISSN 0920-4105.

Volum 196.

DOI: 10.1016/j.petrol.2020.108128

Krolak, Aleksandra; Wiktorski, Tomasz; Bjørkavoll-Bergseth, Magnus; Ørn, Stein

(2020)

Artifact Correction in Short-Term HRV during Strenuous Physical Exercise.

Sensors.

ISSN 1424-8220.

Volum 20.

Hefte 21.

DOI: 10.3390/s20216372

Wiktorski, Tomasz; Demchenko, Yuri; Cuadrado-Gallego, Juan

(2020)

Data science curriculum. I: The Data Science Framework A View from the EDISON Project.

Springer Nature.

ISBN 9783030510251.

s.75-108.

DOI: 10.1007/978-3-030-51023-7_4

Demchenko, Yuri; Comminiello, Luca; Wiktorski, Tomasz; Cuadrado-Gallego, Juan; Chertov, Oleg; Menasalvas, Ernestina; Moreno, Ana; Swoboda, Nik; Brewer, Steve

(2020)

Use cases and applications. I: The Data Science Framework A View from the EDISON Project.

Springer Nature.

ISBN 9783030510251.

s.135-194.

DOI: 10.1007/978-3-030-51023-7_6

Belloum, Adam SZ; Koulouzis, Spiros; Wiktorski, Tomasz; Manieri, Andrea

(2019)

Bridging the demand and the offer in data science.

Concurrency and Computation.

ISSN 1532-0626.

s.1-14.

DOI: 10.1002/cpe.5200

Hemba Geekiyanage, Suranga Chaminda; Løken, Erik Andreas; Sui, Dan; Wiktorski, Tomasz

(2019)

Architectures and algorithms for a smart drilling robot. I: ASME 2019 38th International Conference on Ocean, Offshore and Arctic Engineering (OMAE2019): Volume 8: Polar and Arctic Sciences and Technology; Petroleum Technology .

The American Society of Mechanical Engineers (ASME).

ISBN 978-0-7918-5887-5.

DOI: 10.1115/OMAE2019-95486

Wiktorski, Tomasz; Lin, Jerry Chun-Wei

(2019)

Approximate approach to finding generic utility of sequential patterns.

IEEE International Conference on Data Mining Workshops, ICDMW.

ISSN 2375-9232.

Volum 2019-November.

s.1029-1034.

DOI: 10.1109/ICDMW.2019.00148

Wiktorski, Tomasz; Demchenko, Yuri; Chertov, Oleg

(2019)

Data Science Model Curriculum Implementation for Various Types of Big Data Infrastructure Courses. I: The Proceedings of IEEE 15th Conference on eScience 2019.

IEEE (Institute of Electrical and Electronics Engineers).

ISBN 9781728124513.

DOI: 10.1109/eScience.2019.00074

Demchenko, Yuri; Wiktorski, Tomasz; Juan Jose, Cuadrado Gallego; Brewer, Steve

(2019)

EDISON Data Science Framework (EDSF) Extension to Address Transversal Skills required by Emerging Industry 4.0 Transformation. I: The Proceedings of IEEE 15th Conference on eScience 2019.

IEEE (Institute of Electrical and Electronics Engineers).

ISBN 9781728124513.

DOI: 10.1109/eScience.2019.00076

Wu, Jimmy Ming-Tai; Lin, Jerry Chun-Wei; Fournier-Viger, Philippe; Wiktorski, Tomasz; Hong, Tzung-Pei; Pirouz, Matin

(2019)

A GA-based Framework for Mining High Fuzzy Utility Itemsets. I: 2019 IEEE International Conference on Big Data (Big Data).

IEEE (Institute of Electrical and Electronics Engineers).

ISBN 978-1-7281-0858-2.

s.2708-2715.

DOI: 10.1109/BigData47090.2019.9006171

Dlugosz, Dominika; Eftestøl, Trygve Christian; Krolak, Aleksandra; Wiktorski, Tomasz; Ørn, Stein

(2018)

The North Sea bicycle race ECG project: Time-domain analysis.

Journal of Automation, Mobile Robotics & Intelligent Systems.

ISSN 1897-8649.

Volum 12.

Hefte 1.

s.23-32.

DOI: 10.14313/JAMRIS_1-2018/3

Długosz, Dominika; Krolak, Aleksandra; Eftestøl, Trygve Christian; Ørn, Stein; Wiktorski, Tomasz; Oskal, Kay Raymond; Nygård, Martin

(2018)

ECG Signal Analysis for Troponin Level Assessment and Coronary Artery Disease Detection: the NEEDED Study 2014.

Annals of Computer Science and Information Systems.

ISSN 2300-5963.

Volum 15.

s.1065-1068.

DOI: 10.15439/2018F247

Wiktorski, Tomasz

(2018)

Challenges in Causal Inference from Personal Monitoring Devices.

Annals of Computer Science and Information Systems.

ISSN 2300-5963.

Volum 16.

s.99-102.

DOI: 10.15439/2018F378

Agrawal, Bikash; Wiktorski, Tomasz; Chunming, Rong

(2017)

Adaptive real-time anomaly detection in cloud infrastructures.

Concurrency and Computation.

ISSN 1532-0626.

Volum 29.

Hefte 24.

DOI: 10.1002/cpe.4193

Długosz, Dominika; Eftestøl, Trygve Christian; Ørn, Stein; Wiktorski, Tomasz; Krolak, Aleksandra

(2017)

The North Sea Bicycle Race ECG Project: Time-Domain Analysis.

Annals of Computer Science and Information Systems.

ISSN 2300-5963.

Volum 11.

s.1353-1356.

DOI: 10.15439/2017F303

Agrawal, Bikash; Chakravorty, Antorweep; Wiktorski, Tomasz; Chunming, Rong

(2016)

Enrichment of Machine Learning based Activity Classification in Smart Homes using Ensemble Learning. I: Proceedings of the 9th International Conference on Utility and Cloud Computing.

Association for Computing Machinery (ACM).

ISBN 978-1-4503-4616-0.

s.196-201.

DOI: 10.1145/2996890.3007861

Agrawal, Bikash; Hansen, Raymond; Chunming, Rong; Wiktorski, Tomasz

(2016)

SD-HDFS: Secure Deletion in Hadoop Distributed File System. I: Proceedings 2016 IEEE International Congress on Big Data, 27 June - 2 July 2016 San Francisco, California, USA.

IEEE (Institute of Electrical and Electronics Engineers).

ISBN 978-1-5090-2622-7.

s.181-189.

DOI: 10.1109/BigDataCongress.2016.30

Agrawal, Bikash; Wiktorski, Tomasz; Chunming, Rong

(2016)

Adaptive Anomaly Detection in Cloud Using Robust and Scalable Principal Component Analysis. I: Proceedings of 2016 15th International Symposium on Parallel and Distributed Computing.

IEEE (Institute of Electrical and Electronics Engineers).

ISBN 978-1-5090-4152-7.

DOI: 10.1109/ispdc.2016.22

Wiktorski, Tomasz; Shirazi, Anousheh Shenavari; Demchenko, Yuri; Belloum, Adam

(2016)

Quantitative and Qualitative Analysis of Current Data Science Programs from Perspective of Data Science Competence Groups and Framework. I: Proceedings of 2016 IEEE International Conference on Cloud Computing Technology and Science (CloudCom).

IEEE (Institute of Electrical and Electronics Engineers).

ISBN 978-1-5090-1445-3.

s.633-638.

DOI: 10.1109/CloudCom.2016.0109

Demchenko, Yuri; Belloum, Adam; Los, Wouter; Wiktorski, Tomasz; Manieri, Andrea; Brewer, Steve; Brocks, Holger; Becker, Jana; Heutelbeck, Dominic; Hemmje, Matthias

(2016)

EDISON Data Science Framework: A Foundation for Building Data Science Profession For Research and Industry. I: Proceedings of 2016 IEEE International Conference on Cloud Computing Technology and Science (CloudCom).

IEEE (Institute of Electrical and Electronics Engineers).

ISBN 978-1-5090-1445-3.

s.620-626.

DOI: 10.1109/CloudCom.2016.0107

Agrawal, Bikash; Chakravorty, Antorweep; Rong, Chunming; Wlodarczyk, Tomasz Wiktor

(2015)

R2Time: A framework to analyse open TSDB Time-series data in HBase.

IEEE International Conference on Cloud Computing Technology and Science.

ISSN 2330-2186.

Volum 2015-February.

Hefte February.

s.970-975.

DOI: 10.1109/CloudCom.2014.84

Agrawal, Bikash; Wiktorski, Tomasz; Chunming, Rong

(2015)

Analyzing and Predicting Failure in Hadoop Clusters Using Distributed Hidden Markov Model. I: Cloud Computing and Big Data.

Springer Publishing Company.

ISBN 978-3-319-28429-3.

s.232-246.

DOI: 10.1007/978-3-319-28430-9_18

Wiktorski, Tomasz; Hacker, Thomas J.

(2015)

Problem-based learning approach to a course in data intensive systems.

IEEE International Conference on Cloud Computing Technology and Science.

ISSN 2330-2186.

Volum 2015-February.

Hefte February.

s.942-948.

DOI: 10.1109/CloudCom.2014.133

Selsaas, Lars Ropeid; Agrawal, Bikash; Chunming, Rong; Wiktorski, Tomasz

(2015)

AFFM: Auto feature engineering in field-aware factorization machines for predictive analytics. I: Data Mining Workshop (ICDMW), 2015 IEEE International Conference on.

IEEE Press.

ISBN 978-1-4673-8492-6.

s.1705-1709.

DOI: 10.1109/ICDMW.2015.245

Manieri, Andrea; Brewer, Steve; Riestra, Ruben; Demchenko, Yuri; Hemmje, Matthias; Wiktorski, Tomasz; Ferrari, Tiziana; Frey, Jeremy

(2015)

Data Science Professional Uncovered: How the EDISON Project will Contribute to a Widely Accepted Profile for Data Scientists. I: 2015 IEEE 7th International Conference on Cloud Computing Technology and Science, Vancouver, Canada, 30. November-3. December, 2015.

IEEE (Institute of Electrical and Electronics Engineers).

ISBN 978-1-4673-9560-1.

s.588-593.

DOI: 10.1109/CloudCom.2015.57

Wiktorski, Tomasz; Hacker, Thomas; Hansen, Raymond; Rodgers, Gregory

(2015)

Experience with Problem-based Learning in a Hybrid Classroom. I: 2015 IEEE 7th International Conference on Cloud Computing Technology and Science, Vancouver, Canada, 30. November-3. December, 2015.

IEEE (Institute of Electrical and Electronics Engineers).

ISBN 978-1-4673-9560-1.

s.575-581.

DOI: 10.1109/CloudCom.2015.70

Wlodarczyk, Tomasz Wiktor

(2014)

Performance of Data Extraction from OpenTSDB. I: Proceedings ITISE 2014 International work-conference On Time Series.

ISBN 978‐84‐15814‐97‐9.

s.1170-1181.

Chakravorty, Antorweep; Wlodarczyk, Tomasz Wiktor; Rong, Chunming

(2014)

A Scalable K-Anonymization Solution for Preserving Privacy in an Aging-in-Place Welfare Intercloud. I: Proceedings of IEEE International Conference on Cloud Engineering (IC2E 2014); 10–14 March 2014, Boston, Massachusetts.

IEEE (Institute of Electrical and Electronics Engineers).

ISBN 978-1-4799-3766-0.

s.424-431.

DOI: 10.1109/IC2E.2014.43

Chakravorty, Antorweep; Rong, Chunming; Evensen, Pål; Wlodarczyk, Tomasz Wiktor

(2014)

A Distributed Gaussian-Means Clustering Algorithm for Forecasting Domestic Energy Usage. I: Proceedings of 2014 International Conference on Smart Computing (SMARTCOMP 2014); 3-5 November 2014 Hong Kong, China.

IEEE (Institute of Electrical and Electronics Engineers).

ISBN 978-1-4799-5711-8.

s.229-236.

DOI: 10.1109/smartcomp.2014.7043863

Wlodarczyk, Tomasz Wiktor; Hacker, Thomas

(2014)

Current trends in predictive analytics of big data.

International Journal of Big Data Intelligence.

ISSN 2053-1389.

DOI: 10.1504/IJBDI.2014.066326

Agrawal, Bikash; Chakravorty, Antorweep; Rong, Chunming; Wlodarczyk, Tomasz Wiktor

(2014)

R2Time: a framework to analyse OpenTSDB timeseries data in HBase. I: CloudCom 2014, IEEE 6th International Conference on Cloud Computing Technology and Science, Singapore, 15-18. December, 2014 .

IEEE (Institute of Electrical and Electronics Engineers).

ISBN 978-1-4799-4093-6.

s.970-975.

DOI: 10.1109/CloudCom.2014.84

Wlodarczyk, Tomasz Wiktor

(2013)

Towards Model of Accountability for Cloud Computing Services.

IFIP WG 11.11 on Trust Management.

ISSN 2079-2247.

Wlodarczyk, Tomasz Wiktor; Rong, Chunming

(2013)

Evidence for Accountable Cloud Computing Services.

IFIP WG 11.11 on Trust Management.

ISSN 2079-2247.

Hao, Ming; Wlodarczyk, Tomasz Wiktor; Rong, Chunming

(2013)

Performance Analysis and Optimization of Map Only Left Outer Join. I: IEEE 27th International Conference on Advanced Information Networking and Applications Workshops.

IEEE (Institute of Electrical and Electronics Engineers).

ISBN 978-1-4673-6239-9.

s.625-631 .

DOI: 10.1109/WAINA.2013.74

Rong, Chunming; Chakravorty, Antorweep; Wlodarczyk, Tomasz Wiktor

(2013)

A map reduce based K-anonymization solution for sharing of smart home data. I: Proceeding of Norwegian Information Security Conference / Norsk informasjonssikkerhetskonferanse - NISK 2013 - Stavanger, 18th-20th November 2013.

Akademika forlag.

ISBN 978-82-321-0366-9.

s.70-75.

Chakravorty, Antorweep; Wlodarczyk, Tomasz Wiktor; Rong, Chunming

(2013)

Privacy Preserving Data Analytics for Smart Homes. I: Security and Privacy Workshops (SPW), 2013 IEEE.

IEEE (Institute of Electrical and Electronics Engineers).

ISBN 978-1-4799-0458-7.

s.23-27.

DOI: 10.1109/SPW.2013.22

TaheriMonfared, Aryan; Wlodarczyk, Tomasz Wiktor; Rong, Chunming

(2013)

Real-Time Handling of Network Monitoring Data Using a Data-Intensive Framework. I: 2013 IEEE International Conference on Cloud Computing Technology and Science.

IEEE (Institute of Electrical and Electronics Engineers).

ISBN 978-0-7695-5095-4.

s.258-265.

DOI: 10.1109/CloudCom.2013.41

Chakravorty, Antorweep; Wlodarczyk, Tomasz Wiktor; Rong, Chunming

(2013)

Safer@Home Analytics: a Big Data Analytical Solution for Smart Homes. I: 2013 IEEE International Conference on Cloud Computing Technology and Science.

IEEE (Institute of Electrical and Electronics Engineers).

ISBN 978-0-7695-5095-4.

s.705-710.

DOI: 10.1109/CloudCom.2013.129

Wlodarczyk, Tomasz Wiktor; Han, Yi; Yu, Xiao; Rong, Chunming

(2012)

Evaluation of some optimisation techniques for semantic query answering on shared–nothing architecture.

International Journal of Space-Based and Situated Computing (IJSSC).

ISSN 2044-4893.

Volum 2.

Hefte 1.

s.12-22.

DOI: 10.1504/IJSSC.2012.045567

Byambajav, Byambajargal; Wlodarczyk, Tomasz Wiktor; Rong, Chunming; LePendu, Paea; Shah, Nigam

(2012)

Performance of Left Outer Join on Hadoop with Right Side within Single Node Memory Size. I: 26th IEEE International Conference on Advanced Information Networking and Applications Workshops (WAINA 2012).

IEEE (Institute of Electrical and Electronics Engineers).

ISBN 978-0-7695-4652-0.

s.1075 -1080.

DOI: 10.1109/waina.2012.20

Wlodarczyk, Tomasz Wiktor; LePendu, Paea; Shah, Nigam; Rong, Chunming

(2011)

Position Paper: Scaling-out the NCBO Resource Index Processing and Maintenance.

CEUR Workshop Proceedings.

ISSN 1613-0073.

Volum 736.

Wlodarczyk, Tomasz Wiktor; Rong, Chunming

(2011)

Applying SWRL-F to Intercloud Constraints Analysis. I: High Performance Computing and Simulation (HPCS), 2011 International Conference on.

IEEE (Institute of Electrical and Electronics Engineers).

ISBN 978-1-61284-380-3.

s.391 -396.

Demchenko, Yuri; Ngo, Canh; de Laat, Cees; Rong, Chunming; Wlodarczyk, Tomasz Wiktor; Ziegler, Wolfgang

(2011)

Security Infrastructure for On-demand Provisioned Cloud Infrastructure Services. I: Cloud Computing Technology and Science (CloudCom), 2011 IEEE Third International Conference on.

IEEE (Institute of Electrical and Electronics Engineers).

ISBN 978-0-7695-4622-3.

s.255-263.

DOI: 10.1109/cloudcom.2011.42

Wlodarczyk, Tomasz Wiktor; Rong, Chunming

(2011)

An Initial Survey on Integration and Application of Cloud Computing to High Performance Computing. I: Cloud Computing Technology and Science (CloudCom), 2011 IEEE Third International Conference on.

IEEE (Institute of Electrical and Electronics Engineers).

ISBN 978-0-7695-4622-3.

s.612-617.

Wlodarczyk, Tomasz Wiktor; Han, Yi; Rong, Chunming

(2011)

Performance Analysis of Hadoop for Query Processing. I: Advanced Information Networking and Applications (WAINA), 2011 IEEE Workshops of International Conference on.

IEEE (Institute of Electrical and Electronics Engineers).

ISBN 978-1-61284-829-7.

s.507-513.

DOI: 10.1109/waina.2011.130

Wlodarczyk, Tomasz Wiktor; Rong, Chunming; O'Connor, Martin; Musen, Mark A.

(2011)

SWRL-F: a fuzzy logic extension of the semantic web rule language. I: Proceedings of WIMS '11, International Conference on Web Intelligence, Mining.

ACM Publications.

ISBN 978-1-4503-0148-0.

DOI: 10.1145/1988688.1988735

Wlodarczyk, Tomasz Wiktor; Rong, Chunming; Wåge, Dagfinn

(2011)

Challenges in Healthcare and Welfare Intercloud. I: Digital Content, Multimedia Technology and its Applications (IDCTA), 2011 7th International Conference on.

IEEE (Institute of Electrical and Electronics Engineers).

ISBN 978-1-4577-0473-4.

Wlodarczyk, Tomasz Wiktor; Rong, Chunming; Nyulas, Csongor I; Musen, Mark A.

(2010)

An efficient approach to intelligent real-time monitoring using ontologies and Hadoop. I: Deployment models: Towards eliminating security concerns from cloud computing.

IEEE Press.

ISBN 9781424468270.

s.209-215.

Wlodarczyk, Tomasz Wiktor; Rong, Chunming; Jia, Baodong; Nyulas, Csongor I; Musen, Mark A.

(2010)

DataStorm - An Ontology-Driven Framework for Cloud-Based Data Analytic Systems. I: 2010 IEEE 6th World Congress on Services : SERVICES 2010, 5-10 July 2010, Miami, Florida, USA.

IEEE (Institute of Electrical and Electronics Engineers).

ISBN 9780769541297.

s.123-127.

Wlodarczyk, Tomasz Wiktor; OConnor, Martin; Rong, Chunming; Musen, Mark A.

(2010)

SWRL-F - A Fuzzy Logic Extension of the Semantic Web Rule Language.

CEUR Workshop Proceedings.

ISSN 1613-0073.

Volum 654.

s.97-100.

Rong, Chunming; Jia, Baodong; Wlodarczyk, Tomasz Wiktor

(2010)

Performance Considerations of Data Acquisition in Hadoop System. I: 2nd IEEE International Conference on Cloud Computing Technology and Science - CloudCom 2010.

IEEE (Institute of Electrical and Electronics Engineers).

ISBN 978-0-7695-4302-4.

s.545-549.

Wlodarczyk, Tomasz Wiktor; Rong, Chunming

(2010)

On the sustainability impacts of cloud-enabled cyber physical space. I: 2nd IEEE International Conference on Cloud Computing Technology and Science - CloudCom 2010.

IEEE (Institute of Electrical and Electronics Engineers).

ISBN 978-0-7695-4302-4.

s.597-602.

Rong, Chunming; Thorsen, Kari Anne Haaland; Wlodarczyk, Tomasz Wiktor

(2009)

Industrial Cloud: Toward Inter-Enterprise Integration. I: Cloud Computing.

Springer.

ISBN 9783642106644.

s.460-471.

Esteves, Rui Máximo Esteves; Wlodarczyk, Tomasz Wiktor; Rong, Chunming

(2009)

Bayesian Networks for Fault Detection under Lack of Historical Data. I: The International Symposium on Pervasive Systems, Algorithms, and Networks (I-SPAN 2009).

IEEE (Institute of Electrical and Electronics Engineers).

ISBN 978-0-7695-3908-9.

s.732-736.

Bøker og kapitler

Wiktorski, Tomasz

(2019)

Data-intensive systems: Principles and Fundamentals using Hadoop and Spark.

Springer Nature.

ISBN 9783030046026.

Hefte ..

Selsaas, Lars Ropeid; Agrawal, Bikash; Chunming, Rong; Wiktorski, Tomasz

(2015)

Data Mining Workshop (ICDMW), 2015 IEEE International Conference on.

IEEE Press.

ISBN 978-1-4673-8492-6.

Wlodarczyk, Tomasz Wiktor; Hsu, Robert

(2012)

CloudCom 2012 : Fourth IEEE International Conference on Cloud Computing Technology and Science, Proceedings, Taipei, Taiwan, December 3-6, 2012.

IEEE conference proceedings.

ISBN 978-1-4673-4509-5.

Wlodarczyk, Tomasz Wiktor

(2011)

Handling Big Data: On Mutual Applications of Cloud Computing and Semantic Web Technologies.

ISBN 978-82-7644-457-5.

Hefte 133.

Formidling

Pacis, Felix James Cardano; Wiktorski, Tomasz; Ambrus, Adrian; Alyaev, Sergey

(2023)

Exploration of Strategies to Improve Continual Learning From Irregular Sequential Drilling Data.

OMAE 42nd International Conference on Ocean, Offshore & Arctic Engineering;

2023-06-11 - 2023-06-16.

Pacis, Felix James Cardano; Alyaev, Sergey; Wiktorski, Tomasz

(2023)

Demo: Chatbot for oil and gas data.

DigiWells Seminar;

2023-11-28 - 2023-11-29.

Ambrus, Adrian; Alyaev, Sergey; Jahani, Nazanin; Pacis, Felix James Cardano; Wiktorski, Tomasz

(2022)

Rate of Penetration Prediction Using Quantile Regression Deep Neural Networks.

ASME 41st International Conference on Ocean, Offshore and Arctic Engineering;

2022-06-05 - 2022-06-10.

Pacis, Felix James Cardano; Alyaev, Sergey; Ambrus, Adrian; Wiktorski, Tomasz

(2022)

Transfer Learning Approach to Prediction of Rate of Penetration in Drilling.

INTERNATIONAL CONFERENCE ON COMPUTATIONAL SCIENCE (ICCS) 2022;

2022-06-21 - 2022-06-23.

Pacis, Felix James Cardano; Wiktorski, Tomasz; Alyaev, Sergey; Ambrus, Adrian; Khosravanian, Rasool; Kristiansen, Tron Golder

(2022)

Exploring transfer learning for ROP prediction on the NCS.

Annual seminar SFI DigiWells;

2022-12-01 - 2022-12-02.

Pacis, Felix James Cardano; Alyaev, Sergey; Wiktorski, Tomasz

(2022)

Demo: Chatbot for NCS well data.

Annual DigiWells Seminar 2022;

2022-12-01 - 2022-12-02.

Alyaev, Sergey; Ambrus, Adrian; Pacis, Felix James Cardano; Jahani, Nazanin; Wiktorski, Tomasz; Elsheikh, Ahmed

(2021)

Drilling Process Modelling with Deep Learning: Towards ROP Prediction.

DigiWells seminar;

2021-11-23 - 2021-11-24.

Arief, Hasan Asyari; Thomas, Peter; Wiktorski, Tomasz

(2021)

MixUp Regression: Better Generalizing Regression Data using Manifold Regularization MixUp.

NORDICAIMEET 2021 Nordic young researchers symposium;

2021-11-02.

Tunkiel, Andrzej Tadeusz; Sui, Dan; Wiktorski, Tomasz

(2020)

OMAE2020-18151: Drilling Dataset Exploration, Processing and Interpretation Using Volve Field Data.

OMAE 2020;

2020-08-03 - 2020-08-07.

Tunkiel, Andrzej Tadeusz; Sui, Dan; Wiktorski, Tomasz

(2020)

OMAE2020-18154: Continuous Drilling Sensor Data Reconstruction and Prediction via Recurrent Neural Networks.

OMAE 2020;

2020-08-03 - 2020-08-07.

Hemba Geekiyanage, Suranga Chaminda; Løken, Erik Andreas; Sui, Dan; Wiktorski, Tomasz

(2019)

Architectures and algorithms for a smart drilling robot.

Proceedings of the ASME 2019 38th International OMAE Conference;

2019-06-09 - 2019-06-14.

Wiktorski, Tomasz

(2019)

Data Science Model Curriculum Implementation for Various Types of Big Data Infrastructure Courses.

IEEE eScience 2019;

2019-09-24 - .

Wiktorski, Tomasz

(2019)

EDISON Data Science Framework (EDSF) Extension to Address Transversal Skills required by Emerging Industry 4.0 Transformation.

IEEE eScience 2019;

2019-09-24 - .

Wiktorski, Tomasz

(2018)

Challenges in Causal Inference from Personal Monitoring Devices.

2018 Federated Conference on Computer Science and Information Systems;

2018-09-09 - 2018-09-12.

Wiktorski, Tomasz

(2017)

Model Curricula for Data Science EDISON Data Science Framework.

IEEE CloudCom 2017;

2017-12-11 - 2017-12-14.

Demchenko, Yuri; Wiktorski, Tomasz

(2017)

Becoming a Data Scientist end Educating Data Scientists.

IEEE CloudCom 2017;

2017-12-11 - 2017-12-14.

Wiktorski, Tomasz

(2017)

Data Science course design, academic perspective.

Third EDISON Champions Conference;

2017-06-19 - 2017-06-20.

Wiktorski, Tomasz; Demchenko, Yuri

(2017)

Education, selfdevelopment, and recruiting data scientists - results from EDISON project.

Warsaw Data Science Meetup;

2017-06-20 - .

Agrawal, Bikash; Chakravorty, Antorweep; Wiktorski, Tomasz; Chunming, Rong

(2016)

Enrichment of Machine Learning based Activity Classification in Smart Homes using Ensemble Learning.

Conference Presentation;

2016-12-06 - 2016-12-09.

Wiktorski, Tomasz; Hacker, Thomas; Hansen, Raymond; Rodgers, Gregory

(2015)

Experience with Problem-based Learning in a Hybrid Classroom.

2015 Data Teaching Workshop – 2nd IEEE STC CC and RDA Workshop on Curricula and Teaching Methods in Cloud Computing, Big Data, and Data Science ;

2015-11-30 - 2015-12-03.

Manieri, Andrea; Demchenko, Yuri; Wiktorski, Tomasz; Brewer, Steve; Riestra, Ruben; Hemmje, Matthias; Ferrari, Tiziana; Frey, Jeremy

(2015)

Data Science Professional uncovered: How the EDISON Project will contribute to a widely accepted profile for Data Scientists.

2015 Data Teaching Workshop – 2nd IEEE STC CC and RDA Workshop on Curricula and Teaching Methods in Cloud Computing, Big Data, and Data Science;

2015-11-30 - 2015-12-03.

Wlodarczyk, Tomasz Wiktor

(2014)

Performance of Data Extraction from OpenTSDB.

ITISE 2014 International work-conference On Time ;

2014-06-11 - 2014-06-13.

Chakravorty, Antorweep; Wlodarczyk, Tomasz Wiktor; Rong, Chunming

(2014)

A Scalable K-Anonymization Solution for Preserving Privacy in an Aging-in-Place Welfare Intercloud.

IEEE Third International Workshop on Cloud Computing Interclouds, Multiclouds, Federations, and Interoperability;

2014-03-11.

Chakravorty, Antorweep; Rong, Chunming; Evensen, Pål; Wlodarczyk, Tomasz Wiktor

(2014)

A Distributed Gaussian-Means Clustering Algorithm for Forecasting Domestic Energy Usage.

2014 International Conference on Smart Computing (SmartComp 2014);

2014-11-04.

Wlodarczyk, Tomasz Wiktor

(2014)

Strategic Collaboration on Advanced Data Analysis and Communication between Purdue University and University of Stavanger.

The International Conference for High Performance Computing and Networking, Storage, Analysis;

2014-11-16 - 2014-11-21.

Chakravorty, Antorweep; Wlodarczyk, Tomasz Wiktor; Rong, Chunming

(2013)

Privacy Preserving Data Analytics for Smart Homes.

4th International Workshop on Data Usage Management;

2013-05-23.

Wlodarczyk, Tomasz Wiktor

(2013)

Storage and Analysis of Big Time Series.

ISO 15926 and Semantic Technologies 2013;

2013-09-05 - 2013-09-06.

Wlodarczyk, Tomasz Wiktor

(2013)

Performance Analysis and Optimization of Map Only Left Outer Join.

AINA 2013;

2013-03-25 - .

Chakravorty, Antorweep; Wlodarczyk, Tomasz Wiktor; Rong, Chunming

(2013)

Safer@Home Analytics: a Big Data Analytical Solution for Smart Homes.

IEEE International Conference on Cloud Computing Technology and Scienc;

2013-12-02 - 2013-12-05.

Chakravorty, Antorweep; Wlodarczyk, Tomasz Wiktor; Rong, Chunming

(2013)

A MapReduce based K-Anonymization Solution for Sharing of Smart Home Data.

Norwegian Information Security Conference / Norsk informasjonssikkerhetskonferanse - NISK 2013;

2013-11-18 - 2013-11-20.

Rong, Chunming; Wlodarczyk, Tomasz Wiktor

(2011)

Security challenges in Clouds.

6th NATO CAX Joint Computer Assisted Exercise Forum (CAX '11);

2011-09-12 - 2011-09-15.

Demchenko, Yuri; Ngo, Canh; de Laat, Cees; Wlodarczyk, Tomasz Wiktor; Rong, Chunming; Ziegler, Wolfgang

(2011)

Security Infrastructure for On-demand Provisioned Cloud Infrastructure Services.

the 3rd IEEE international conference on Cloud Computing Technology and Science (CloudCom) 2011;

2011-11-29 - 2011-12-01.

Wlodarczyk, Tomasz Wiktor; Rong, Chunming

(2011)

An Initial Survey on Integration and Application of Cloud Computing to High Performance Computing.

the 3rd IEEE international conference on Cloud Computing Technology and Science (CloudCom) 2011;

2011-11-29 - 2011-12-01.

Wlodarczyk, Tomasz Wiktor; Wåge, Dagfinn; Rong, Chunming

(2011)

Challenges in healthcare and welfare intercloud.

the 7th International Conference on Digital Content, Multimedia Technology and its Applications (IDCTA);

2011-08-16 - 2011-08-18.

Wlodarczyk, Tomasz Wiktor; Rong, Chunming

(2011)

Applying SWRL-F to Intercloud Constraints Analysis.

the 2011 International Conference on High Performance Computing and Simulation (HPCS);

2011-07-04 - 2011-07-08.

Wlodarczyk, Tomasz Wiktor; LePendu, Paea; Shah, Nigam; Rong, Chunming

(2011)

Scaling-out the NCBO Resource Index Processing and Maintenance.

the 1st Workshop on High-Performance Computing for the Semantic Web (HPCSW 2011 -ESWC);

2011-05-29 - 2011-05-30.

Wlodarczyk, Tomasz Wiktor; O'Connor, Martin; Musen, Mark A.; Rong, Chunming

(2011)

SWRL-F: a fuzzy logic extension of the semantic web rule language.

the International Conference on Web Intelligence, Mining and Semantics (WIMS’11);

2011-05-25 - 2011-05-27.

Wlodarczyk, Tomasz Wiktor; Han, Yi; Rong, Chunming

(2011)

Performance Analysis of Hadoop for Query Processing.

2011 IEEE Intl. Conference on Advanced Information Networking and Applications (AINA);

2011-03-22 - 2011-03-25.

Wlodarczyk, Tomasz Wiktor

(2011)

Handling Big Data: On Mutual Applications of Cloud Computing and Semantic Web Technologies.

PhD Defence;

2011-08-12.

Wlodarczyk, Tomasz Wiktor

(2011)

Privacy, Security and Trust in Distributed Systems.

PhD Trial Lecture;

2011-08-12.

Wlodarczyk, Tomasz Wiktor; Rong, Chunming

(2011)

Handling Big Data - Overview of 3 Projects.

Stanford BMIR Lecture;

2011-10-31.

Wlodarczyk, Tomasz Wiktor; Thorsen, Kari Anne Haaland; Rong, Chunming

(2010)

Integrated Data Processing. I: Computational Science and Engineering: Challenges and Opportunities.

ISBN 978-82-995202-0-1.

s.46-47.