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ORCIDHelena Galhardas
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- affiliation: University of Lisbon, Departament of Computer Science and Engineering
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2020 – today
- 2024
[j13]João L. M. Pereira
, Manuel J. Fonseca, Antónia Lopes, Helena Galhardas:
Cleenex: Support for User Involvement during an Iterative Data Cleaning Process. ACM J. Data Inf. Qual. 16(1): 6:1-6:26 (2024)- [c36]Oana Balalau, Simon Ebel, Helena Galhardas, Théo Galizzi, Ioana Manolescu:
STaR: Space and Time-aware Statistic Query Answering. CIKM 2024: 5190-5194 - 2022
- [j12]Leonor Silva, Magda Resende, Helena Galhardas, Vasco Manquinho, Inês Lynce:
DeepData: Machine learning in the marine ecosystems. Expert Syst. Appl. 206: 117841 (2022) - [j11]Angelos-Christos G. Anadiotis, Oana Balalau, Catarina Conceição, Helena Galhardas, Mhd Yamen Haddad, Ioana Manolescu, Tayeb Merabti, Jingmao You:
Graph integration of structured, semistructured and unstructured data for data journalism. Inf. Syst. 104: 101846 (2022) - [j10]João L. M. Pereira, João Casanova, Helena Galhardas, Dennis E. Shasha:
AcX: System, Techniques, and Experiments for Acronym Expansion. Proc. VLDB Endow. 15(11): 2530-2544 (2022) - [j9]Théo Bouganim, Helena Galhardas, Ioana Manolescu:
Efficiently Identifying Disguised Missing Values in Heterogeneous, Text-Rich Data. Trans. Large Scale Data Knowl. Centered Syst. 51: 97-118 (2022) - [c35]Thomas James Z. Tiam-Lee, Rui Henriques, José Costa, Vasco Manquinho, Helena Galhardas:
Consolidation of Massive Medical Emergency Events With Heterogeneous Situational Context Data Sources. EDBT/ICDT Workshops 2022 - 2021
- [j8]Angelos-Christos G. Anadiotis, Oana Balalau, Théo Bouganim, Francesco Chimienti, Helena Galhardas, Mhd Yamen Haddad, Stephane Horel, Ioana Manolescu, Youssr Youssef:
Empowering Investigative Journalism with Graph-based Heterogeneous Data Management. IEEE Data Eng. Bull. 44(3): 12-26 (2021) - [c34]João L. M. Pereira, Helena Galhardas, Dennis E. Shasha:
Acronym Expander at SDU@AAAI-21: an Acronym Disambiguation Module. SDU@AAAI 2021 - [c33]Angelos-Christos G. Anadiotis, Oana Balalau, Théo Bouganim, Francesco Chimienti, Helena Galhardas, Mhd Yamen Haddad, Stephane Horel, Ioana Manolescu, Youssr Youssef:
Discovering Conflicts of Interest across Heterogeneous Data Sources with ConnectionLens. CIKM 2021: 4670-4674 - [c32]Leonor Silva, Helena Galhardas, Vasco Manquinho, Rui Henriques:
UNIANO: robust and efficient anomaly consensus in time series sensitive to cross-correlated anomaly profiles. SDM 2021: 324-332 - [i6]Angelos-Christos G. Anadiotis, Oana Balalau, Théo Bouganim, Francesco Chimienti, Helena Galhardas, Mhd Yamen Haddad, Stephane Horel, Ioana Manolescu, Youssr Youssef:
Empowering Investigative Journalism with Graph-based Heterogeneous Data Management. CoRR abs/2102.04141 (2021) - 2020
- [c31]Pedro Alves, Manuel J. Fonseca, João D. Pereira, Helena Galhardas:
CDRGen: A Clinical Data Registry Generator (Formal and/or Technical Paper). Poly/DMAH@VLDB 2020: 188-204 - [i5]Oana Balalau, Catarina Conceição, Helena Galhardas, Ioana Manolescu, Tayeb Merabti, Jingmao You, Youssr Youssef:
Graph integration of structured, semistructured and unstructured data for data journalism. CoRR abs/2007.12488 (2020) - [i4]Angelos-Christos G. Anadiotis, Oana Balalau, Catarina Conceição, Helena Galhardas, Mhd Yamen Haddad, Ioana Manolescu, Tayeb Merabti, Jingmao You:
Graph integration of structured, semistructured and unstructured data for data journalism. CoRR abs/2012.08830 (2020)
2010 – 2019
- 2019
- [j7]Pradeeban Kathiravelu, Ashish Sharma, Helena Galhardas, Peter Van Roy, Luís Veiga:
On-demand big data integration - A hybrid ETL approach for reproducible scientific research. Distributed Parallel Databases 37(2): 273-295 (2019) - [e2]Melanie Herschel, Helena Galhardas, Berthold Reinwald, Irini Fundulaki, Carsten Binnig, Zoi Kaoudi:
Advances in Database Technology - 22nd International Conference on Extending Database Technology, EDBT 2019, Lisbon, Portugal, March 26-29, 2019. OpenProceedings.org 2019, ISBN 978-3-89318-081-3 [contents] - 2018
- [j6]Camille Chanial, Rédouane Dziri, Helena Galhardas, Julien Leblay, Minh-Huong Le Nguyen, Ioana Manolescu:
ConnectionLens: Finding Connections Across Heterogeneous Data Sources. Proc. VLDB Endow. 11(12): 2030-2033 (2018) - [c30]João M. P. Moreira, Helena Galhardas, Miguel L. Pardal:
LeanBench: comparing software stacks for batch and query processing of IoT data. ANT/SEIT 2018: 448-455 - [c29]Sérgio Esteves, Helena Galhardas, Luís Veiga:
Adaptive Execution of Continuous and Data-intensive Workflows with Machine Learning. Middleware 2018: 239-252 - [i3]Pradeeban Kathiravelu, Ashish Sharma, Helena Galhardas, Peter Van Roy, Luís Veiga:
On-Demand Big Data Integration: A Hybrid ETL Approach for Reproducible Scientific Research. CoRR abs/1804.08985 (2018) - 2017
- [c28]Pradeeban Kathiravelu, Yiru Chen, Ashish Sharma, Helena Galhardas, Peter Van Roy, Luís Veiga:
On-Demand Service-Based Big Data Integration: Optimized for Research Collaboration. DMAH@VLDB 2017: 9-28 - [c27]Nuno F. Lages, Bernardo Caetano, Manuel J. Fonseca, João D. Pereira, Helena Galhardas, Rui Farinha:
Umedicine: A System for Clinical Practice Support and Data Analysis. DMAH@VLDB 2017: 102-120 - 2016
- [i2]Sérgio Esteves, Helena Galhardas, Luís Veiga:
Smart Scheduling of Continuous Data-Intensive Workflows with Machine Learning Triggered Execution. CoRR abs/1612.03852 (2016) - 2015
- [c26]João L. M. Pereira, Helena Galhardas, Bruno Martins:
A Benchmark for Relation Extraction Kernels. ADBIS 2015: 184-197 - [c25]Pablo Barrio, Gonçalo Simões, Helena Galhardas, Luis Gravano:
Learning to Rank Adaptively for Scalable Information Extraction. EDBT 2015: 241-252 - [c24]Pradeeban Kathiravelu, Helena Galhardas, Luís Veiga:
∂u∂u Multi-Tenanted Framework: Distributed Near Duplicate Detection for Big Data. OTM Conferences 2015: 237-256 - [c23]Valéria Magalhães Pequeno, Vânia Maria Ponte Vidal, Tiago Vinuto, Helena Galhardas:
Automatic Generation of R2R Mappings from Correspondence Assertions. SBBD (Short Papers) 2015: 33-38 - 2014
- [c22]Valéria Magalhães Pequeno, Helena Galhardas:
Specifying Complex Correspondences Between Relational Schemas in a Data Integration Environment. ICEIS (1) 2014: 18-29 - [c21]Valéria Magalhães Pequeno, Helena Galhardas, Vânia Maria Ponte Vidal:
Using Complex Correspondences for Integrating Relational Data Sources. ICEIS (Revised Selected Papers) 2014: 57-74 - [c20]Valéria Magalhães Pequeno, Vânia Maria Ponte Vidal, Marco A. Casanova, Luís Eufrasio T. Neto, Helena Galhardas:
Specifying complex correspondences between relational schemas and RDF models for generating customized R2RML mappings. IDEAS 2014: 96-104 - [c19]Pablo Barrio, Gonçalo Simões, Helena Galhardas, Luis Gravano:
REEL: A Relation Extraction Learning framework. JCDL 2014: 455-456 - [e1]Helena Galhardas, Erhard Rahm:
Data Integration in the Life Sciences - 10th International Conference, DILS 2014, Lisbon, Portugal, July 17-18, 2014. Proceedings. Lecture Notes in Computer Science 8574, Springer 2014, ISBN 978-3-319-08589-0 [contents] - 2013
- [j5]Gonçalo Simões, Helena Galhardas, Luis Gravano:
When Speed Has a Price: Fast Information Extraction Using Approximate Algorithms. Proc. VLDB Endow. 6(13): 1462-1473 (2013) - [i1]Gonçalo Simões, Helena Galhardas, David Martins de Matos:
A Labeled Graph Kernel for Relationship Extraction. CoRR abs/1302.4874 (2013) - 2012
- [c18]Anna Thanopoulou, Paulo Carreira, Helena Galhardas:
Benchmarking with TPC-H on Off-the-Shelf Hardware - An Experiments Report. ICEIS (1) 2012: 205-208 - 2011
- [c17]Helena Galhardas, Antónia Lopes, Emanuel Santos:
Support for User Involvement in Data Cleaning. DaWaK 2011: 136-151 - 2010
- [j4]Andreas Wichert, Pedro Teixeira, Pedro Santos, Helena Galhardas:
Subspace tree: high dimensional multimedia indexing with logarithmic temporal complexity. J. Intell. Inf. Syst. 35(3): 495-516 (2010) - [c16]Emanuel Santos, João Pavão Martins, Helena Galhardas:
An Argumentation-based Approach to Database Repair. ECAI 2010: 125-130 - [c15]Helena Galhardas, Luis Torres, João Damásio:
Master data management: A proof of concept. ICIQ 2010
2000 – 2009
- 2007
- [j3]Paulo Carreira, Helena Galhardas, Antónia Lopes, João Pereira:
One-to-many data transformations through data mappers. Data Knowl. Eng. 62(3): 483-503 (2007) - [c14]Paulo J. F. Carreira, Helena Galhardas, João Pereira, Andrzej Wichert:
One-to-many data transformation operations - optimization and execution on an RDBMS. ICEIS (1) 2007: 21-27 - [c13]Paulo Carreira, Helena Galhardas, João Pereira, Andrzej Wichert:
On Handling One-to-Many Transformations in Relational Systems. ICEIS (Selected Papers) 2007: 121-134 - [c12]Paulo J. F. Carreira, Helena Galhardas, João Pereira, Fernando Martins, Mário J. Silva:
On the performance of one-to-many data transformations. QDB 2007: 39-48 - 2005
- [j2]José Barateiro, Helena Galhardas:
A Survey of Data Quality Tools. Datenbank-Spektrum 14: 15-21 (2005) - [c11]Paulo J. F. Carreira, Helena Galhardas, João Pereira, Antónia Lopes:
Data Mapper: An Operator for Expressing One-to-Many Data Transformations. DaWaK 2005: 136-145 - [c10]Helena Galhardas:
Data Cleaning and Transformation Using the AJAX Framework. GTTSE 2005: 327-343 - [c9]Paulo J. F. Carreira, Helena Galhardas, Antónia Lopes, João L. M. Pereira:
Extending Relational Algebra to express one-to-many data transformations. SBBD 2005: 145-159 - 2004
- [c8]Paulo J. F. Carreira, Helena Galhardas:
Execution of Data Mappers. IQIS 2004: 2-9 - [c7]Paulo J. F. Carreira, Helena Galhardas:
Efficient Development of Data Migration Transformations. SIGMOD Conference 2004: 915-916 - 2003
- [j1]Elsa Cardoso, Helena Galhardas, António Rito Silva:
A Decision Support System for IST Academic Information. Informatica (Slovenia) 27(3): 313-323 (2003) - 2001
- [c6]Helena Galhardas, Daniela Florescu, Dennis E. Shasha, Eric Simon, Cristian-Augustin Saita:
Improving Data Cleaning Quality Using a Data Lineage Facility. DMDW 2001: 3 - [c5]Helena Galhardas, Daniela Florescu, Dennis E. Shasha, Eric Simon, Cristian-Augustin Saita:
Declarative Data Cleaning: Language, Model, and Algorithms. VLDB 2001: 371-380 - 2000
- [c4]Helena Galhardas, Daniela Florescu, Dennis E. Shasha, Eric Simon:
Declaratively Cleaning your Data with AJAX. BDA 2000 - [c3]Helena Galhardas, Daniela Florescu, Dennis E. Shasha, Eric Simon:
An Extensible Framework for Data Cleaning. ICDE 2000: 312 - [c2]Helena Galhardas, Daniela Florescu, Dennis E. Shasha, Eric Simon:
AJAX: An Extensible Data Cleaning Tool. SIGMOD Conference 2000: 590
1990 – 1999
- 1996
- [c1]António Rito Silva, Helena Galhardas, Paulo Sousa, Jorge G. Silva, Pedro Sousa:
Designing Distributed Databases from an Organisational Perspective. ECIS 1996: 57-74
Coauthor Index
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last updated on 2024-12-02 21:33 CET by the dblp team
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