Helena Galhardas

57 papers A* 2A 5B 4C 2Journal 19Unranked 24
YearRankTypeTitle / Venue / Authors
2024 J jnl
Cleenex: Support for User Involvement during an Iterative Data Cleaning Process.
ACM J. Data Inf. Qual.
João L. M. Pereira, Manuel J. Fonseca, Antónia Lopes, Helena Galhardas
2024 A conf
STaR: Space and Time-aware Statistic Query Answering.
CIKM
Oana Balalau, Simon Ebel, Helena Galhardas, Théo Galizzi, Ioana Manolescu
2022 J jnl
AcX: System, Techniques, and Experiments for Acronym Expansion.
Proc. VLDB Endow.
João L. M. Pereira, João Casanova, Helena Galhardas, Dennis E. Shasha
2022 — conf
Consolidation of Massive Medical Emergency Events With Heterogeneous Situational Context Data Sources.
EDBT/ICDT Workshops
Thomas James Z. Tiam-Lee, Rui Henriques, José Costa, Vasco Manquinho, Helena Galhardas
2022 J jnl
DeepData: Machine learning in the marine ecosystems.
Expert Syst. Appl.
Leonor Silva, Magda Resende, Helena Galhardas, Vasco Manquinho, Inês Lynce
2022 J jnl
Efficiently Identifying Disguised Missing Values in Heterogeneous, Text-Rich Data.
Trans. Large Scale Data Knowl. Centered Syst.
Théo Bouganim, Helena Galhardas, Ioana Manolescu
2022 J jnl
Graph integration of structured, semistructured and unstructured data for data journalism.
Inf. Syst.
Angelos-Christos G. Anadiotis, Oana Balalau, Catarina Conceição, Helena Galhardas, Mhd Yamen Haddad, Ioana Manolescu, Tayeb Merabti, Jingmao You
2021 — conf
Acronym Expander at SDU@AAAI-21: an Acronym Disambiguation Module.
SDU@AAAI
João L. M. Pereira, Helena Galhardas, Dennis E. Shasha
2021 A conf
Discovering Conflicts of Interest across Heterogeneous Data Sources with ConnectionLens.
CIKM
Angelos-Christos G. Anadiotis, Oana Balalau, Théo Bouganim, Francesco Chimienti, Helena Galhardas, Mhd Yamen Haddad, Stephane Horel, Ioana Manolescu, Youssr Youssef
2021 J jnl
Empowering Investigative Journalism with Graph-based Heterogeneous Data Management.
CoRR
Angelos-Christos G. Anadiotis, Oana Balalau, Théo Bouganim, Francesco Chimienti, Helena Galhardas, Mhd Yamen Haddad, Stephane Horel, Ioana Manolescu, Youssr Youssef
2021 J jnl
Empowering Investigative Journalism with Graph-based Heterogeneous Data Management.
IEEE Data Eng. Bull.
Angelos-Christos G. Anadiotis, Oana Balalau, Théo Bouganim, Francesco Chimienti, Helena Galhardas, Mhd Yamen Haddad, Stephane Horel, Ioana Manolescu, Youssr Youssef
2021 A conf
UNIANO: robust and efficient anomaly consensus in time series sensitive to cross-correlated anomaly profiles.
SDM
Leonor Silva, Helena Galhardas, Vasco Manquinho, Rui Henriques
2020 — conf
CDRGen: A Clinical Data Registry Generator (Formal and/or Technical Paper).
Poly/DMAH@VLDB
Pedro Alves, Manuel J. Fonseca, João D. Pereira, Helena Galhardas
2020 J jnl
Graph integration of structured, semistructured and unstructured data for data journalism.
CoRR
Oana Balalau, Catarina Conceição, Helena Galhardas, Ioana Manolescu, Tayeb Merabti, Jingmao You, Youssr Youssef
2020 J jnl
Graph integration of structured, semistructured and unstructured data for data journalism.
CoRR
Angelos-Christos G. Anadiotis, Oana Balalau, Catarina Conceição, Helena Galhardas, Mhd Yamen Haddad, Ioana Manolescu, Tayeb Merabti, Jingmao You
2019 B ed.
Advances in Database Technology - 22nd International Conference on Extending Database Technology, EDBT 2019, Lisbon, Portugal, March 26-29, 2019
EDBT
Melanie Herschel, Helena Galhardas, Berthold Reinwald, Irini Fundulaki, Carsten Binnig, Zoi Kaoudi
2019 J jnl
On-demand big data integration - A hybrid ETL approach for reproducible scientific research.
Distributed Parallel Databases
Pradeeban Kathiravelu, Ashish Sharma, Helena Galhardas, Peter Van Roy, Luís Veiga
2018 A conf
Adaptive Execution of Continuous and Data-intensive Workflows with Machine Learning.
Middleware
Sérgio Esteves, Helena Galhardas, Luís Veiga
2018 J jnl
ConnectionLens: Finding Connections Across Heterogeneous Data Sources.
Proc. VLDB Endow.
Camille Chanial, Rédouane Dziri, Helena Galhardas, Julien Leblay, Minh-Huong Le Nguyen, Ioana Manolescu
2018 — conf
LeanBench: comparing software stacks for batch and query processing of IoT data.
ANT/SEIT
João M. P. Moreira, Helena Galhardas, Miguel L. Pardal
2018 J jnl
On-Demand Big Data Integration: A Hybrid ETL Approach for Reproducible Scientific Research.
CoRR
Pradeeban Kathiravelu, Ashish Sharma, Helena Galhardas, Peter Van Roy, Luís Veiga
2017 — conf
On-Demand Service-Based Big Data Integration: Optimized for Research Collaboration.
DMAH@VLDB
Pradeeban Kathiravelu, Yiru Chen, Ashish Sharma, Helena Galhardas, Peter Van Roy, Luís Veiga
2017 — conf
Umedicine: A System for Clinical Practice Support and Data Analysis.
DMAH@VLDB
Nuno F. Lages, Bernardo Caetano, Manuel J. Fonseca, João D. Pereira, Helena Galhardas, Rui Farinha
2016 J jnl
Smart Scheduling of Continuous Data-Intensive Workflows with Machine Learning Triggered Execution.
CoRR
Sérgio Esteves, Helena Galhardas, Luís Veiga
2015 C conf
A Benchmark for Relation Extraction Kernels.
ADBIS
João L. M. Pereira, Helena Galhardas, Bruno Martins
2015 — conf
Automatic Generation of R2R Mappings from Correspondence Assertions.
SBBD (Short Papers)
Valéria Magalhães Pequeno, Vânia Maria Ponte Vidal, Tiago Vinuto, Helena Galhardas
2015 B conf
Learning to Rank Adaptively for Scalable Information Extraction.
EDBT
Pablo Barrio, Gonçalo Simões, Helena Galhardas, Luis Gravano
2015 — conf
∂u∂u Multi-Tenanted Framework: Distributed Near Duplicate Detection for Big Data.
OTM Conferences
Pradeeban Kathiravelu, Helena Galhardas, Luís Veiga
2014 — ed.
Data Integration in the Life Sciences - 10th International Conference, DILS 2014, Lisbon, Portugal, July 17-18, 2014. Proceedings
DILS
Helena Galhardas, Erhard Rahm
2014 — conf
REEL: A Relation Extraction Learning framework.
JCDL
Pablo Barrio, Gonçalo Simões, Helena Galhardas, Luis Gravano
2014 — conf
Specifying Complex Correspondences Between Relational Schemas in a Data Integration Environment.
ICEIS (1)
Valéria Magalhães Pequeno, Helena Galhardas
2014 C conf
Specifying complex correspondences between relational schemas and
IDEAS
Valéria Magalhães Pequeno, Vânia Maria Ponte Vidal, Marco A. Casanova, Luís Eufrasio T. Neto, Helena Galhardas
2014 — conf
Using Complex Correspondences for Integrating Relational Data Sources.
ICEIS (Revised Selected Papers)
Valéria Magalhães Pequeno, Helena Galhardas, Vânia Maria Ponte Vidal
2013 J jnl
A Labeled Graph Kernel for Relationship Extraction
CoRR
Gonçalo Simões, Helena Galhardas, David Martins de Matos
2013 J jnl
When Speed Has a Price: Fast Information Extraction Using Approximate Algorithms.
Proc. VLDB Endow.
Gonçalo Simões, Helena Galhardas, Luis Gravano
2012 — conf
Benchmarking with TPC-H on Off-the-Shelf Hardware - An Experiments Report.
ICEIS (1)
Anna Thanopoulou, Paulo Carreira, Helena Galhardas
2011 B conf
Support for User Involvement in Data Cleaning.
DaWaK
Helena Galhardas, Antónia Lopes, Emanuel Santos
2010 A conf
An Argumentation-based Approach to Database Repair.
ECAI
Emanuel Santos, João Pavão Martins, Helena Galhardas
2010 — conf
Master data management: A proof of concept.
ICIQ
Helena Galhardas, Luis Torres, João Damásio
2010 J jnl
Subspace tree: high dimensional multimedia indexing with logarithmic temporal complexity.
J. Intell. Inf. Syst.
Andreas Wichert, Pedro Teixeira, Pedro Santos, Helena Galhardas
2007 — conf
On Handling One-to-Many Transformations in Relational Systems.
ICEIS (Selected Papers)
Paulo Carreira, Helena Galhardas, João Pereira, Andrzej Wichert
2007 — conf
On the performance of one-to-many data transformations.
QDB
Paulo J. F. Carreira, Helena Galhardas, João Pereira, Fernando Martins, Mário J. Silva
2007 — conf
One-to-many data transformation operations - optimization and execution on an RDBMS.
ICEIS (1)
Paulo J. F. Carreira, Helena Galhardas, João Pereira, Andrzej Wichert
2007 J jnl
One-to-many data transformations through data mappers.
Data Knowl. Eng.
Paulo Carreira, Helena Galhardas, Antónia Lopes, João Pereira
2005 J jnl
A Survey of Data Quality Tools.
Datenbank-Spektrum
José Barateiro, Helena Galhardas
2005 — conf
Data Cleaning and Transformation Using the AJAX Framework.
GTTSE
Helena Galhardas
2005 B conf
Data Mapper: An Operator for Expressing One-to-Many Data Transformations.
DaWaK
Paulo J. F. Carreira, Helena Galhardas, João Pereira, Antónia Lopes
2005 — conf
Extending Relational Algebra to express one-to-many data transformations.
SBBD
Paulo J. F. Carreira, Helena Galhardas, Antónia Lopes, João L. M. Pereira
2004 — conf
Efficient Development of Data Migration Transformations.
SIGMOD Conference
Paulo J. F. Carreira, Helena Galhardas
2004 — conf
Execution of Data Mappers.
IQIS
Paulo J. F. Carreira, Helena Galhardas
2003 J jnl
A Decision Support System for IST Academic Information.
Informatica (Slovenia)
Elsa Cardoso, Helena Galhardas, António Rito Silva
2001 A* conf
Declarative Data Cleaning: Language, Model, and Algorithms.
VLDB
Helena Galhardas, Daniela Florescu, Dennis E. Shasha, Eric Simon, Cristian-Augustin Saita
2001 — conf
Improving Data Cleaning Quality Using a Data Lineage Facility.
DMDW
Helena Galhardas, Daniela Florescu, Dennis E. Shasha, Eric Simon, Cristian-Augustin Saita
2000 — conf
AJAX: An Extensible Data Cleaning Tool
SIGMOD Conference
Helena Galhardas, Daniela Florescu, Dennis E. Shasha, Eric Simon
2000 A* conf
An Extensible Framework for Data Cleaning.
ICDE
Helena Galhardas, Daniela Florescu, Dennis E. Shasha, Eric Simon
2000 — conf
Declaratively Cleaning your Data with AJAX.
BDA
Helena Galhardas, Daniela Florescu, Dennis E. Shasha, Eric Simon
1996 — conf
Designing Distributed Databases from an Organisational Perspective.
ECIS
António Rito Silva, Helena Galhardas, Paulo Sousa, Jorge G. Silva, Pedro Sousa