Lucian Popa 
contact information
Principal Research Staff Member, Research Manager - Entity Linking, Structured Knowledge and LearningIBM Research - Almaden, San Jose, CA, USA +1
4089271914
4089271914 links
Professional Associations
Professional Associations: ACM | ACM Distinguished Member | ACM SIGMODmore information
More information: LinkedIn | Google Scholar2019
Knowledge Refinement via Rule Selection
Phokion Kolaitis, Lucian Popa, Kun Qian
AAAI 2019 (acceptance rate: 16.2%, oral presentation)
Phokion Kolaitis, Lucian Popa, Kun Qian
AAAI 2019 (acceptance rate: 16.2%, oral presentation)
Expressive power of entity-linking frameworks
Douglas Burdick, Ronald Fagin, Phokion G. Kolaitis, Lucian Popa, Wang-Chiew Tan
Journal of Computer and System Sciences100, 44-69, 2019
Abstract mathematics, machine learning, expressive power, entity linking, discrete mathematics, artificial intelligence
Douglas Burdick, Ronald Fagin, Phokion G. Kolaitis, Lucian Popa, Wang-Chiew Tan
Journal of Computer and System Sciences100, 44-69, 2019
Abstract mathematics, machine learning, expressive power, entity linking, discrete mathematics, artificial intelligence
2018
Defining and Capturing the Competitor Relationship across Financial Datasets
Min Li, Douglas Burdick, Rajasekar Krishnamurthy, Lucian Popa
Proceedings of the Fourth International Workshop on Data Science for Macro-Modeling with Financial and Economic Datasets, 2018
Abstract subject matter expert, parent company, location, f1 score, extensibility, entity linking, data mining, computer science, competitor analysis, analytics
Min Li, Douglas Burdick, Rajasekar Krishnamurthy, Lucian Popa
Proceedings of the Fourth International Workshop on Data Science for Macro-Modeling with Financial and Economic Datasets, 2018
Abstract subject matter expert, parent company, location, f1 score, extensibility, entity linking, data mining, computer science, competitor analysis, analytics
2017
Active Learning for Large-Scale Entity Resolution
Kun Qian, Lucian Popa, Prithviraj Sen
Proceedings of the 2017 ACM on Conference on Information and Knowledge Management, pp. 1379--1388
Kun Qian, Lucian Popa, Prithviraj Sen
Proceedings of the 2017 ACM on Conference on Information and Knowledge Management, pp. 1379--1388
2016
Towards High-Precision and Reusable Entity Resolution Algorithms over Sparse Financial Datasets
Burdick, Douglas and Popa, Lucian and Krishnamurthy, Rajasekar
Proceedings of the Second International Workshop on Data Science for Macro-Modeling, pp. 18, 2016
Abstract
Burdick, Douglas and Popa, Lucian and Krishnamurthy, Rajasekar
Proceedings of the Second International Workshop on Data Science for Macro-Modeling, pp. 18, 2016
Abstract
2015
Extracting, linking and integrating data from public sources: A financial case study
Burdick, Douglas and Das, Sanjiv Ranjan and Hernandez, Mauricio and Ho, Howard and Koutrika, Georgia and Krishnamurthy, Rajasekar and Popa, Lucian Constantin and Stanoi, Ioana and Vaithyanathan, Shivakumar
Available at SSRN, 2015
Abstract
Burdick, Douglas and Das, Sanjiv Ranjan and Hernandez, Mauricio and Ho, Howard and Koutrika, Georgia and Krishnamurthy, Rajasekar and Popa, Lucian Constantin and Stanoi, Ioana and Vaithyanathan, Shivakumar
Available at SSRN, 2015
Abstract
A declarative framework for linking entities
Burdick, Douglas and Fagin, Ronald and Kolaitis, Phokion G and Popa, Lucian and Tan, Wang-Chiew
LIPIcs-Leibniz International Proceedings in Informatics, 2015
Abstract
Burdick, Douglas and Fagin, Ronald and Kolaitis, Phokion G and Popa, Lucian and Tan, Wang-Chiew
LIPIcs-Leibniz International Proceedings in Informatics, 2015
Abstract
2014
Financial Analytics from Public Data
Burdick, Doug and Evfimievski, Alexandre and Krishnamurthy, Rajasekar and Lewis, Neal and Popa, Lucian and Rickards, Scott and Williams, Peter
Proceedings of the International Workshop on Data Science for Macro-Modeling, pp. 1--6, 2014
Abstract
Burdick, Doug and Evfimievski, Alexandre and Krishnamurthy, Rajasekar and Lewis, Neal and Popa, Lucian and Rickards, Scott and Williams, Peter
Proceedings of the International Workshop on Data Science for Macro-Modeling, pp. 1--6, 2014
Abstract
Data Science Challenges in Real Estate Asset and Capital Markets
Burdick, Douglas and Franklin, Michael and Issler, Paulo and Krishnamurthy, Rajasekar and Popa, Lucian and Raschid, Louiqa and Stanton, Richard and Wallace, Nancy
Proceedings of the International Workshop on Data Science for Macro-Modeling, pp. 1--5, 2014
Abstract
Burdick, Douglas and Franklin, Michael and Issler, Paulo and Krishnamurthy, Rajasekar and Popa, Lucian and Raschid, Louiqa and Stanton, Richard and Wallace, Nancy
Proceedings of the International Workshop on Data Science for Macro-Modeling, pp. 1--5, 2014
Abstract
2013
High-level rules for integration and analysis of data: New challenges
Alexe, Bogdan and Burdick, Douglas and Hern{'a}ndez, Mauricio A and Koutrika, Georgia and Krishnamurthy, Rajasekar and Popa, Lucian and Stanoi, Ioana R and Wisnesky, Ryan
In Search of Elegance in the Theory and Practice of Computation, pp. 36--55, Springer, 2013
Abstract
Alexe, Bogdan and Burdick, Douglas and Hern{'a}ndez, Mauricio A and Koutrika, Georgia and Krishnamurthy, Rajasekar and Popa, Lucian and Stanoi, Ioana R and Wisnesky, Ryan
In Search of Elegance in the Theory and Practice of Computation, pp. 36--55, Springer, 2013
Abstract
Discovering linkage points over web data
Hassanzadeh, Oktie and Pu, Ken Q and Yeganeh, Soheil Hassas and Miller, Ren{'e}e J and Popa, Lucian and Hern{'a}ndez, Mauricio A and Ho, Howard
Proceedings of the VLDB Endowment 6(6), 445--456, VLDB Endowment, 2013
Abstract
Hassanzadeh, Oktie and Pu, Ken Q and Yeganeh, Soheil Hassas and Miller, Ren{'e}e J and Popa, Lucian and Hern{'a}ndez, Mauricio A and Ho, Howard
Proceedings of the VLDB Endowment 6(6), 445--456, VLDB Endowment, 2013
Abstract
HIL: a high-level scripting language for entity integration
Hern{'a}ndez, Mauricio and Koutrika, Georgia and Krishnamurthy, Rajasekar and Popa, Lucian and Wisnesky, Ryan
Proceedings of the 16th International Conference on Extending Database Technology, pp. 549--560, 2013
Abstract
Hern{'a}ndez, Mauricio and Koutrika, Georgia and Krishnamurthy, Rajasekar and Popa, Lucian and Wisnesky, Ryan
Proceedings of the 16th International Conference on Extending Database Technology, pp. 549--560, 2013
Abstract
2012
MapMerge: correlating independent schema mappings
Alexe, Bogdan and Hern{'a}ndez, Mauricio and Popa, Lucian and Tan, Wang-Chiew
The VLDB Journal 21(2), 191--211, Springer, 2012
Abstract
Alexe, Bogdan and Hern{'a}ndez, Mauricio and Popa, Lucian and Tan, Wang-Chiew
The VLDB Journal 21(2), 191--211, Springer, 2012
Abstract
2011
Schema mapping evolution through composition and inversion
Fagin, Ronald and Kolaitis, Phokion G and Popa, Lucian and Tan, Wang-Chiew
Schema Matching and Mapping, pp. 191--222, Springer, 2011
Abstract
Fagin, Ronald and Kolaitis, Phokion G and Popa, Lucian and Tan, Wang-Chiew
Schema Matching and Mapping, pp. 191--222, Springer, 2011
Abstract
2009
Reverse data exchange: coping with nulls
R Fagin, P G Kolaitis, L Popa, W C Tan
Proceedings of the twenty-eighth ACM SIGMOD-SIGACT-SIGART symposium on Principles of database systems, pp. 23--32, 2009
R Fagin, P G Kolaitis, L Popa, W C Tan
Proceedings of the twenty-eighth ACM SIGMOD-SIGACT-SIGART symposium on Principles of database systems, pp. 23--32, 2009
Top-k generation of integrated schemas based on directed and weighted correspondences
A Radwan, L Popa, I R Stanoi, A Younis
Proceedings of the 35th SIGMOD international conference on Management of data, pp. 641--654, 2009
A Radwan, L Popa, I R Stanoi, A Younis
Proceedings of the 35th SIGMOD international conference on Management of data, pp. 641--654, 2009
Clio: Schema mapping creation and data exchange
R Fagin, L Haas, M Hern{'a}ndez, R Miller, L Popa, Y Velegrakis
Conceptual Modeling: Foundations and Applications, pp. 198--236, Springer, 2009
R Fagin, L Haas, M Hern{'a}ndez, R Miller, L Popa, Y Velegrakis
Conceptual Modeling: Foundations and Applications, pp. 198--236, Springer, 2009
2008
Interactive Generation of Integrated Schemas
L. Chiticariu, P. G. Kolaitis, L. Popa
SIGMOD, pp. 833--846, 2008
L. Chiticariu, P. G. Kolaitis, L. Popa
SIGMOD, pp. 833--846, 2008
Towards a theory of schema-mapping optimization
R Fagin, P G Kolaitis, A Nash, L Popa
Proceedings of the twenty-seventh ACM SIGMOD-SIGACT-SIGART symposium on Principles of database systems, pp. 33--42, 2008
R Fagin, P G Kolaitis, A Nash, L Popa
Proceedings of the twenty-seventh ACM SIGMOD-SIGACT-SIGART symposium on Principles of database systems, pp. 33--42, 2008
Quasi-inverses of schema mappings
R Fagin, P G Kolaitis, L Popa, W C Tan
ACM Transactions on Database Systems (TODS) 33(2), 11, ACM, 2008
US Patent App. 11/970,057
R Fagin, P G Kolaitis, L Popa, W C Tan
ACM Transactions on Database Systems (TODS) 33(2), 11, ACM, 2008
US Patent App. 11/970,057
2007
BioFederator: A Data Federation System for Bioinformatics on the Web
A Radwan, A Younis, MA Hern{'a}ndez, H Ho, L Popa, S Shivaji, S Khuri
IIWeb Workshop, pp. 92--97, 2007
A Radwan, A Younis, MA Hern{'a}ndez, H Ho, L Popa, S Shivaji, S Khuri
IIWeb Workshop, pp. 92--97, 2007
Mapping-driven XML transformation
H Jiang, H Ho, L Popa, W S Han
Proceedings of the 16th international conference on World Wide Web, pp. 1072, 2007
H Jiang, H Ho, L Popa, W S Han
Proceedings of the 16th international conference on World Wide Web, pp. 1072, 2007
Creating nested mappings with Clio
MA Hernandez, H Ho, L Popa, T Fukuda, A Fuxman, RJ Miller, P Papotti
IEEE 23rd International Conference on Data Engineering, 2007, pp. 1487--1488
MA Hernandez, H Ho, L Popa, T Fukuda, A Fuxman, RJ Miller, P Papotti
IEEE 23rd International Conference on Data Engineering, 2007, pp. 1487--1488
Semi-Automatic Schema Integration in Clio
L. Chiticariu, M. A. Hern\'andez, P. G. Kolaitis, L. Popa
SIGMOD (Demonstration), pp. 1326--1329, 2007
L. Chiticariu, M. A. Hern\'andez, P. G. Kolaitis, L. Popa
SIGMOD (Demonstration), pp. 1326--1329, 2007
2006
Query reformulation with constraints
A Deutsch, L Popa, V Tannen
ACM SIGMOD Record 35(1), 73, ACM, 2006
A Deutsch, L Popa, V Tannen
ACM SIGMOD Record 35(1), 73, ACM, 2006
XML mapping technology: Making connections in an XML-centric world
M Roth, M A Hern{'a}ndez, P Coulthard, L Yan, L Popa, HCT Ho, CC Salter
IBM Systems Journal 45(2), 389--409, Citeseer, 2006
M Roth, M A Hern{'a}ndez, P Coulthard, L Yan, L Popa, HCT Ho, CC Salter
IBM Systems Journal 45(2), 389--409, Citeseer, 2006
Nested mappings: schema mapping reloaded
A Fuxman, M A Hernandez, H Ho, R J Miller, P Papotti, L Popa
Proceedings of the 32nd international conference on Very large data bases, pp. 78, 2006
A Fuxman, M A Hernandez, H Ho, R J Miller, P Papotti, L Popa
Proceedings of the 32nd international conference on Very large data bases, pp. 78, 2006
2005
Clio: a schema mapping tool for information integration
M Hernandez, H Ho, F Naumann, L Popa
Parallel Architectures, Algorithms and Networks, 2005, pp. 1
M Hernandez, H Ho, F Naumann, L Popa
Parallel Architectures, Algorithms and Networks, 2005, pp. 1
Composing schema mappings: Second-order dependencies to the rescue
R Fagin, P G Kolaitis, L Popa, W C Tan
Proceedings of the twenty-third ACM SIGMOD-SIGACT-SIGART symposium on Principles of database systems, pp. 994--1055, ACM, 2005
R Fagin, P G Kolaitis, L Popa, W C Tan
Proceedings of the twenty-third ACM SIGMOD-SIGACT-SIGART symposium on Principles of database systems, pp. 994--1055, ACM, 2005
Semantic adaptation of schema mappings when schemas evolve
C Yu, L Popa
Proceedings of the 31st international conference on Very large data bases, pp. 1017, 2005
C Yu, L Popa
Proceedings of the 31st international conference on Very large data bases, pp. 1017, 2005
Data exchange: semantics and query answering
R Fagin, P G Kolaitis, R J Miller, L Popa
Proceedings of ICDT, pp. 89--124, Elsevier, 2005
R Fagin, P G Kolaitis, R J Miller, L Popa
Proceedings of ICDT, pp. 89--124, Elsevier, 2005
Clio grows up: from research prototype to industrial tool
L M Haas, M A Hern{'a}ndez, H Ho, L Popa, M Roth
Proceedings of the 2005 ACM SIGMOD international conference on Management of data, pp. 805--810
L M Haas, M A Hern{'a}ndez, H Ho, L Popa, M Roth
Proceedings of the 2005 ACM SIGMOD international conference on Management of data, pp. 805--810
2004
Constraint-based XML query rewriting for data integration
C Yu, L Popa
Proceedings of the 2004 ACM SIGMOD international conference on Management of data, pp. 371--382
C Yu, L Popa
Proceedings of the 2004 ACM SIGMOD international conference on Management of data, pp. 371--382
Tomas: a system for adapting mappings while schemas evolve
Y Velegrakis, R J Miller, L Popa, J Mylopoulos
Proceedings of the Twentieth International Conference on Data Engineering, 2004
Y Velegrakis, R J Miller, L Popa, J Mylopoulos
Proceedings of the Twentieth International Conference on Data Engineering, 2004
Preserving mapping consistency under schema changes
Y Velegrakis, R J Miller, L Popa
The VLDB Journal 13(3), 274--293, Springer, 2004
Y Velegrakis, R J Miller, L Popa
The VLDB Journal 13(3), 274--293, Springer, 2004
2003
Mapping adaptation under evolving schemas
Y Velegrakis, R J Miller, L Popa
Proceedings of the 29th international conference on Very large data bases-Volume 29, pp. 595, 2003
Y Velegrakis, R J Miller, L Popa
Proceedings of the 29th international conference on Very large data bases-Volume 29, pp. 595, 2003
Data exchange: getting to the core
R Fagin, P G Kolaitis, L Popa
Proceedings of the twenty-second ACM SIGMOD-SIGACT-SIGART symposium on Principles of database systems, pp. 90--101, ACM, 2003
R Fagin, P G Kolaitis, L Popa
Proceedings of the twenty-second ACM SIGMOD-SIGACT-SIGART symposium on Principles of database systems, pp. 90--101, ACM, 2003
2002
Schema management
P Andritsos, R Fagin, A Fuxman, L M Haas, M A Hernandez, C T H Ho, A Kementsietsidis, R J Miller, F Naumann, L Popa, others
IEEE Data Engineering Bulletin 25(3), 32--38, Citeseer, 2002
P Andritsos, R Fagin, A Fuxman, L M Haas, M A Hernandez, C T H Ho, A Kementsietsidis, R J Miller, F Naumann, L Popa, others
IEEE Data Engineering Bulletin 25(3), 32--38, Citeseer, 2002
Mapping XML and relational schemas with Clio
L Popa, M A Hernandez, Y Velegrakis, R J Miller, F Naumann, H Ho
PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON DATA ENGINEERING, pp. 498--499, 2002
L Popa, M A Hernandez, Y Velegrakis, R J Miller, F Naumann, H Ho
PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON DATA ENGINEERING, pp. 498--499, 2002
Translating web data
L Popa, Y Velegrakis, M A Hern{'a}ndez, R J Miller, R Fagin
Proceedings of the 28th international conference on Very Large Data Bases, pp. 598--609, 2002
L Popa, Y Velegrakis, M A Hern{'a}ndez, R J Miller, R Fagin
Proceedings of the 28th international conference on Very Large Data Bases, pp. 598--609, 2002
2001
The Clio project: managing heterogeneity
R J Miller, M A Hernandez, L M Haas, L Yan, CT Howard Ho, R Fagin, L Popa
ACM Sigmod Record 30(1), 78--83, ACM, 2001
R J Miller, M A Hernandez, L M Haas, L Yan, CT Howard Ho, R Fagin, L Popa
ACM Sigmod Record 30(1), 78--83, ACM, 2001
2000
1999
Physical data independence, constraints and optimization with universal plans
A Deutsch, L Popa, V Tannen
Proceedings of the 25th International Conference on Very Large Data Bases, pp. 459--470, 1999
A Deutsch, L Popa, V Tannen
Proceedings of the 25th International Conference on Very Large Data Bases, pp. 459--470, 1999
An equational chase for path-conjunctive queries, constraints, and views
L Popa, V Tannen
Lecture notes in computer science, 39--57, Springer, 1999
L Popa, V Tannen
Lecture notes in computer science, 39--57, Springer, 1999
1998
A structure-based approach to querying semi-structured data
M Fernandez, L Popa, D Suciu
Lecture notes in computer science, 136--159, Springer, 1998
M Fernandez, L Popa, D Suciu
Lecture notes in computer science, 136--159, Springer, 1998
1997
Querying an object-oriented database using CPL
S B Davidson, C Hara, L Popa
Proceedings of the Brazilian Symposium on Databases, 1997
S B Davidson, C Hara, L Popa
Proceedings of the Brazilian Symposium on Databases, 1997