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Lukasz
Golab Associate Professor and Canada Research Chair Department of Management Sciences,
Faculty of Engineering, Cross-appointed
to the School of Computer Science, Faculty of Mathematics, Waterloo,
Ontario, Canada N2L 3G1 Email:
lgolab at uwaterloo dot
ca |
Bio: I joined Waterloo in 2011 and was awarded a Tier-2 Canada Research Chair in 2015. From 2006 to 2011 I was a Senior Member of Research Staff at AT&T Labs. I have a BSc in Computer Science from the University of Toronto (2001; with High Distinction) and a PhD in Computer Science from the University of Waterloo (2006; with Alumni Gold Medal).
Research interests (also see my Data Science Lab webpage)
- Data for good (sustainability, clean energy and transportation, public health, education, gender equity)
- Data profiling and cleaning (discovering column dependencies and business rules from data, detecting data errors)
- Data systems (blockchains, data stream systems and real-time analytics, graph and social network mining, distributed data management)
Recent professional service: Associate
Editor for Information Systems; Review Board Member for PVLDB 2018; PC
member for ICDE 2020, EDM 2019, ICDE 2019, CIKM 2018, SIGMOD 2018, SSDBM
2018;
Publicity co-chair for SIGMOD 2020 and ICDE 2019
Recent teaching: MSCI446 (Data Mining), MSCI346 (Database Systems), MSCI623 (Big Data Analytics). Data science course notes here
Media
Researchers use blockchain to drive electric-vehicle infrastructure
Speeding up blockchains to meet real-world needs
Gender differences in engineering applicants (Globe and Mail)
Are smart meters delivering on their promise?, The Weather Wild Card: Assessing Time-of-Use Electricity Pricing, CTV news
Tutorials
Z. Abedjan, L. Golab, F. Naumann, Data Profiling, SIGMOD 2017, 1747-1751 and ICDE 2016, 1432-1435. Slides here
Publications (or see DBLP):
2019
H. Saxena, L. Golab, I. Ilyas, Distributed Implementations of Dependency Discovery Algorithms, PVLDB 2019
A. Khan, L. Golab, M. Kargar, J. Szlichta, M. Zihayat, Compact Group Discovery in Attributed Graphs and Social Networks, Journal of Information Processing and Management
M. Vollmer, L. Golab, K. Boehm, D. Srivastava, Informative Summarization of Numeric Data, SSDBM 2019, 97-108
C. Gorenflo, L. Golab, S. Keshav, Mitigating Trust Issues in Electric Vehicle Charging using a Blockchain, e-Energy 2019, 160-164
S. Chopra, A. Khan, M. Mirsafian, L. Golab, Gender Differences in Work-Integrated Learning Assessments, EDM 2019, 524-527
H. Davoudi, P. Godfrey, L. Golab, M. Kargar, D. Srivastava, J. Szlichta, Bringing Order to Data, AMW 2019, 11:1-11:5
D. Kumar, R. Cohen, L. Golab, Online abuse detection: the value of preprocessing and neural attention models, NAACL workshop on Computational Approaches to Subjectivity, Sentiment & Social Media Analysis (WASSA), 16-24
S. Chopra, M. Mirsafian, A. Khan, L. Golab, Gender Differences in Science and Engineering: A Data Mining Approach, EDBT workshop on Data Analytics Solutions for Real-Life Applications, 7:1-7:8
C. Gorenflo, S. Lee, L. Golab, S. Keshav, FastFabric: Scaling Hyperledger Fabric to 20,000 Transactions per Second, IEEE Int. Conf. on Blockchain and Cryptocurrency (ICBC) 2019, 455-463
H. Saxena, L. Golab, I. Ilyas, Distributed Discovery of Functional Dependencies, ICDE 2019, 1590-1593
L. Golab, Types of Stream Processing Algorithms, Encyclopedia of Big Data Technologies, Springer, 2019
2018
S. Chopra, L. Golab, T. J. Pretti, A. Toulis, Using data mining methods for research in co-operative education, Int. Journal of Work Integrated Learning, 19(3): 297-310, 2018
Z. Abedjan, L. Golab, F. Naumann, T. Papenbrock, Data Profiling, Morgan & Claypool Publishers, 2018
K. El Gebaly, G. Feng, L. Golab, F. Korn, D. Srivastava, Explanation Tables, IEEE Data Engineering Bulletin, 41(3):43-51, 2018
J. Szlichta, P. Godfrey, L. Golab, M. Kargar, D. Srivastava, Effective and Complete Discovery of Bidirectional Order Dependencies via Set-based Axioms, VLDB Journal, 27(4): 573-591
S. Chopra, H. Gautreau, A. Khan, M. Mirsafian, L. Golab, Gender Differences in Undergraduate Engineering Applicants: A Text Mining Approach, EDM 2018, 44-54
S. Chopra, L. Golab, Job Description Mining to Understand Work-Integrated Learning, EDM 2018, 32-43
L. Gao, L. Golab, T. Ozsu, G. Aluc, Stream WatDiv - A Streaming RDF Benchmark, SIGMOD workshop on Semantic Big Data, 3:1-3:6
M. Zihayat, A. An, L. Golab, M. Kargar, J. Szlichta, Effective Team Formation in Expert Networks, AMW 2018, 4:1-4:4
M. Langouri, Z. Zheng, F. Chiang, L. Golab, J. Szlichta, Contextual Data Cleaning, ICDE workshop on Context in Analytics, 21-24
G. Tang, S. Keshav, L. Golab, K. Wu, Bikeshare Pool Sizing for Bike-And-Ride Multimodal Transit, Trans. on Intelligent Transportration Systems, 19(7): 2279-2289
S. Chopra, Y. Jiang, A. Toulis, L. Golab, Data Analytics to Improve Co-Operative Education, EDBT workshop on Data Analytics Solutions for Real-Life Applications, 16-21
A. Mihaylov, P. Godfrey, L. Golab, M. Kargar, D. Srivastava, J. Szlichta, FastOD: Bringing Order to Data, ICDE 2018, 1561-1564, demo paper
Z. Zheng, M. Langouri, Z. Qu, I. Currie, F. Chiang, L. Golab, J. Szlichta, FastOFD: Contextual Data Cleaning with Ontology Functional Dependencies, EDBT 2018, 694-697, demo paper
A. Andrade, S. Chopra, B. Nurlybayev, L. Golab, Quantifying the Impact of Entrepreneurship on Cooperative Job Creation, Int. Journal of Work Integrated Learning, 19(1): 51-68
2017
X. Meng, L. Golab, Optimal Reducer Placement to Minimize Data Transfer in MapReduce-Style Processing, IEEE BigData 2017, 339-346
S. Baskaran, A. Keller, F. Chiang, L. Golab, J. Szlichta, Efficient Discovery of Ontology Functional Dependencies, CIKM 2017, 1847-1856
C. Gorenflo, I. Rios, L. Golab, S. Keshav, Usage Patterns of Electric Bicycles: An Analysis of the WeBike Project, Journal of Advanced Transportation, 2017, Article ID 3739505
Y. Yang, L. Golab, M. T. Ozsu, ViewDF: Declarative Incremental View Maintenance for Streaming Data, Information Systems, 71 (2017) 55-67
A. Toulis, L. Golab, Social Media Mining to Understand Public Mental Health, DMAH workshop at VLDB 2017, 55-70
K. El Gebaly, L. Golab, J. Lin, Portable In-Browser Data Cube Exploration, IDEA workshop at KDD 2017, 35-39
C. Gorenflo, L. Golab, S. Keshav, Managing Sensor Data Streams: Lessons Learned from the WeBike Project, SSDBM 2017, 1:1-1:11
S. Fink, L. Golab, S. Keshav, H. de Meer, How Similar is the Usage of Electric Cars and Electric Bicycles?, EV-Sys 2017, 334-340
A. Toulis, L. Golab, Graph Mining to Characterize Competition for Employment, Network Data Analytics workshop at SIGMOD 2017, 3:1-3:7
R. Miller, L. Golab, C. Rosenberg, Modelling Weather Effects for Impact Analysis of Residential Time-of-Use Electricity Pricing, Energy Policy 105 (2017) 534-546
J. Szlichta, P. Godfrey, L. Golab, M. Kargar, D. Srivastava, Effective and Complete Discovery of Order Dependencies via Set-based Axiomatization. PVLDB 10(7): 721-732, 2017
G. Feng, L. Golab, D. Srivastava, Scalable Informative Rule Mining, ICDE 2017, 48. Tech report here
M. Zihayat, A. An, L. Golab, M. Kargar, J. Szlichta, Authority-Based Team Discovery in Social Networks, EDBT 2017, 498-501
X. Liu, L. Golab, W. Golab, I. Ilyas, S. Jin, Smart Meter Data Analytics: Systems, Algorithms and Benchmarking, TODS 42(1): 2:1-2:39, 2017
2016
M. Kargar, L. Golab, J. Szlichta, eGraphSearch: Effective Keyword Search in Graphs, CIKM 2016, 2461-2464, demo paper. Tech report here
I. Rios, L. Golab, S. Keshav, Analyzing the Usage Patterns of Electric Bicycles, EV-Sys 2016, 2
A. Baer, P. Casas, A. D’Alconzo, P. Fiadino, L. Golab, M. Mellia, E. Schikuta, DBStream: A Holistic Approach to Large-Scale Network Traffic Monitoring and Analysis, Computer Networks 107 (2016) 5-19
L. Gebhard, L. Golab, S. Keshav, H. de Meer, Range prediction for electric bicycles, e-Energy 2016, 224-234
Y. Jiang, L. Golab, On Competition for Undergraduate Co-op Placements: A Graph Mining Approach, EDM 2016, 394-399
Y. Jiang, R. Levman, L. Golab, J. Nathwani, Analyzing the Impact of the 5CP Ontario Peak Reduction Program on Large Consumers, Energy Policy 93 (2016) 96-100. Short version here
2015
Y. Yang, L. Golab, M. T. Ozsu, ViewDF: declarative incremental view maintenance for streaming data, VLDB Workshop on Business Intelligence for the Real Time Enterprise (BIRTE) 2015. Early version here
C. Ge, M. Kaufmann, L. Golab, P. M. Fischer, A. Goel, Indexing bi-temporal windows, SSDBM 2015, 19
Z. Abedjan, L. Golab, F. Naumann, Profiling relational data - a survey, VLDB Journal 24(4): 557-581
J. Szlichta, L. Golab, D. Srivastava, On Axiomatization and Inference Complexity over a Hierarchy of Functional Dependencies, AMW 2015
Y. Jiang, S. Lee, L. Golab, Analyzing student and employer satisfaction with cooperative education through multiple data sources, Asia-Pacific Journal of Cooperative Education, 16(4):225-240, 2015
X. Gao, L. Golab, S. Keshav, What's wrong with my solar panels: a data-driven approach, EnDM 2015, 86-93
X. Liu, L. Golab, W. Golab, I. Ilyas, Benchmarking Smart Meter Data Analytics, EDBT 2015, 385-396
A. Baer, L. Golab, S. Ruehrup, M. Schiavone, P. Casas, Cache-Oblivious Scheduling of Shared Workloads, ICDE 2015, 855-866
L. Golab, F. Korn, F. Li, B. Saha, D. Srivastava, Size-Constrained Weighted Set Cover, ICDE 2015, 879-890
X. Liu, L. Golab, I. Ilyas, SMAS: A Smart Meter Data Analytics System, ICDE 2015, 1476-1479, demo paper
2014
A. Baer, A. Finamore, P. Casas, L. Golab, M. Mellia, Large-Scale Network Traffic Monitoring with DBStream, a System for Rolling Big Data Analysis, IEEE BigData 2014, 165-170
K. El Gebaly, P. Agrawal, L. Golab, F. Korn, D. Srivastava, Interpretable and Informative Explanations of Outcomes, PVLDB 8(1):61-72, 2014
L. Golab, M. Hadjieleftheriou, H. Karloff, B. Saha, Distributed Data Placement to Minimize Communication Costs via Graph Partitioning, SSDBM 2014, 20-31. Tech report here: CoRR abs/1312.0285
A. Baer, P. Casas, L. Golab, A. Finamore, DBStream: an Online Aggregation, Filtering and Processing System for Network Traffic Monitoring, 5th Int. Workshop on Traffic Analysis and Characterization (TRAC) 2014, 611-616
S. J. Syed, Y. Jiang, L. Golab, Data Mining of Undergraduate Course Evaluations, EDM 2014, 347-348
T. Carpenter, L. Golab, S. J. Syed, Is the grass greener? Mining electric vehicle opinions, e-Energy 2014, 241-252
Y. Jiang R. Levman, L. Golab, J. Nathwani, Predicting peak-demand days in the Ontario peak reduction program for large consumers, e-Energy 2014, 221-222
O. Ardakanian, N. Koochakzadeh, R. P. Singh, L. Golab, S. Keshav, Computing Electricity Consumption Profiles from Household Smart Meter Data, EnDM 2014, 140-147. Slides here
L.
Golab, H. Karloff, F. Korn,
B. Saha, D. Srivastava, Discovering
Conservation Rules, TKDE, 26(6):1332-1348, 2014
2013
C. Ge, L. Golab, Lazy data structure maintenance for main-memory analytics over sliding windows, DOLAP 2013, 33-38
G.
Beskales, I. Ilyas, L. Golab, A. Galiullin, On the
Relative Trust between Inconsistent Data and Inaccurate Constraints, ICDE
2013, 541-552
L. Golab, Data Warehouse Quality: Summary and Outlook, in S. Sadiq (ed.), Handbook of Data Quality Research and Practice, Springer-Verlag Berlin Heidelberg 2013
2012
A.
Baer, L. Golab, Towards Benchmarking Stream Data
Warehouses, DOLAP 2012, 105-112
L. Golab, T. Johnson, S. Sen, J. Yates, A Sequence-Oriented Stream Warehouse Paradigm for Network Monitoring Applications, PAM 2012, 53-63
L. Golab, H. Karloff, F. Korn, B. Saha, D. Srivastava, Discovering
Conservation Rules, ICDE 2012,
738-749
L. Golab, T. Johnson, V. Shkapenyuk, Scalable Scheduling of Updates in Streaming Data Warehouses, TKDE, 24(6): 1092-1105, 2012
2011
M. Bateni,
L. Golab, M. Hajiaghayi, H.
Karloff, Scheduling to Minimize Staleness and Stretch in Real-Time Data
Warehouses, Theory of Computing Systems, 49(4):757-780, 2011
L. Golab, F. Korn, D. Srivastava, Efficient and Effective Analysis of Data
Quality using Pattern Tableaux, IEEE
Data Engineering Bulletin, 34(3):26-33, 2011
L. Golab, F. Korn, D. Srivastava, Discovering Pattern Tableaux for Data
Quality Analysis: a Case Study, QDB
2011, 47-53, 2011
L. Golab, T. Johnson, Consistency in a Stream Warehouse, CIDR 2011, 114-122
2010
L. Golab, M. T. Ozsu, Data Stream
Management, Morgan & Claypool Publishers, 2010
G. Beskales,
I. Ilyas, L. Golab, Sampling the Repairs of Functional
Dependency Violations under Hard Constraints, PVLDB 3(1):197-207, 2010
L. Golab, H. Karloff, F. Korn, D. Srivastava, Data Auditor: Exploring Data Quality and Semantics using Pattern Tableaux, PVLDB 3(2):1641-1644, 2010, demo paper
D. Srivastava, L. Golab, R. Greer, T. Johnson, J. Seidel, V. Shkapenyuk, O. Spatscheck, J. Yates, Enabling Real Time Data Analysis, PVLDB 3(1): 1-2, 2010
2009
L. Golab,
H. Karloff, F. Korn, A. Saha,
D. Srivastava, Sequential
Dependencies, PVLDB
2(1):574-585, 2009
L. Golab, T. Johnson, J. S. Seidel, V. Shkapenyuk,
Stream Warehousing with DataDepot, SIGMOD 2009, 847-854
G. Cormode, L. Golab, F. Korn, A. McGregor, D. Srivastava,
X. Zhang, Estimating the Confidence of Conditional Functional Dependencies,
SIGMOD 2009, 469-482
L. Golab, T. Johnson, V. Shkapenyuk,
Scheduling Updates in a Real-Time Stream Warehouse, ICDE 2009, 1207-1210
M. Bateni,
L. Golab, M. Hajiaghayi, H.
Karloff, Scheduling to Minimize Staleness and Stretch in Real-Time Data
Warehouses, SPAA 2009, 29-38
L. Golab, Stream Models, Encyclopedia
of Database Systems, 2009, 2834-2836
L. Golab, Data Stream, Encyclopedia of Database Systems, 2009, 638
2008
L. Golab,
H. Karloff, F. Korn, D. Srivastava,
B. Yu, On Generating Near-Optimal Tableaux for Conditional Functional
Dependencies, PVLDB
1(1):376-390, 2008
L. Golab,
T. Johnson, O. Spatscheck, Prefilter: Predicate Pushdown at Streaming Speeds,
SSPS 2008, 29-37
L. Golab, T. Johnson, N. Koudas, D. Srivastava, D. Toman, Optimizing Away Joins on Data Streams, SSPS 2008, 48-57
2006
L. Golab,
K. G. Bijay, M. T. Ozsu, Multi-Query
Optimization of Sliding Window Aggregates by Schedule Synchronization, CIKM 2006, 844-845
L. Golab,
P. Prahladka, M. T. Ozsu, Indexing Time-Evolving Data with Variable Lifetimes, SSDBM 2006, 265-274
L. Golab, K. G. Bijay, M. T. Ozsu, On Concurrency Control in Sliding Window Queries over Data Streams, EDBT 2006, 608-626
2005
L. Golab, M. T. Ozsu, Update-Pattern-Aware Modeling and Processing of Continuous Queries, SIGMOD 2005, 658-669
2004
L. Golab,
S. Garg, M. T. Ozsu, On Indexing
Sliding Windows over On-Line Data Streams, EDBT 2004, 712-729
L. Golab, D. DeHaan, A. Lopez-Ortiz, E. Demaine, Finding Frequent Items in Sliding Windows with Multinomially-Distributed Item Frequencies, SSDBM 2004, 425-426
L. Golab, Querying Sliding Windows Over Online Data Streams, EDBT Ph.D. Workshop 2004, 1-11
2003
L. Golab,
D. DeHaan, E. Demaine, A.
Lopez-Ortiz, J. I. Munro, Identifying Frequent Items in Sliding Windows over
On-Line Packet Streams, IMC
2003, 173-178
L. Golab,
M. T. Ozsu, Processing Sliding Window Multi-Joins
in Continuous Queries over Data Streams, VLDB 2003, 500-511
L. Golab,
M. T. Ozsu, Issues in Data Stream Management, SIGMOD Record, 32(2):5-14, 2003