Designing Distributed Databases from an Organisational Perspective. - António Rito Silva; Helena Galhardas; Paulo Sousa; Jorge G. Silva; Pedro Sousa (ECIS, 1996)

Declaratively Cleaning your Data with AJAX. - Helena Galhardas; Daniela Florescu; Dennis E. Shasha; Eric Simon (BDA, 2000)

An Extensible Framework for Data Cleaning. - Helena Galhardas; Daniela Florescu; Dennis E. Shasha; Eric Simon (ICDE, 2000)

AJAX: An Extensible Data Cleaning Tool - Helena Galhardas; Daniela Florescu; Dennis E. Shasha; Eric Simon (SIGMOD Conference, 2000)

Improving Data Cleaning Quality Using a Data Lineage Facility. - Helena Galhardas; Daniela Florescu; Dennis E. Shasha; Eric Simon; Cristian-Augustin Saita (DMDW, 2001)

Declarative Data Cleaning: Language, Model, and Algorithms. - Helena Galhardas; Daniela Florescu; Dennis E. Shasha; Eric Simon; Cristian-Augustin Saita (VLDB, 2001)

A Decision Support System for IST Academic Information. - Elsa Cardoso; Helena Galhardas; António Rito Silva (Informatica (Slovenia), 2003)

Execution of Data Mappers. - Paulo J. F. Carreira; Helena Galhardas (IQIS, 2004)

Efficient Development of Data Migration Transformations. - Paulo J. F. Carreira; Helena Galhardas (SIGMOD Conference, 2004)

Data Mapper: An Operator for Expressing One-to-Many Data Transformations. - Paulo J. F. Carreira; Helena Galhardas; João Pereira 002; Antónia Lopes (DaWaK, 2005)

Data Cleaning and Transformation Using the AJAX Framework. - Helena Galhardas (GTTSE, 2005)

Extending Relational Algebra to express one-to-many data transformations. - Paulo J. F. Carreira; Helena Galhardas; Antónia Lopes; João L. M. Pereira (SBBD, 2005)

A Survey of Data Quality Tools. - José Barateiro; Helena Galhardas (Datenbank-Spektrum, 2005)

One-to-many data transformation operations - optimization and execution on an RDBMS. - Paulo J. F. Carreira; Helena Galhardas; João Pereira 002; Andrzej Wichert (ICEIS (1), 2007)

On Handling One-to-Many Transformations in Relational Systems. - Paulo Carreira 001; Helena Galhardas; João Pereira 002; Andrzej Wichert (ICEIS (Selected Papers), 2007)

On the performance of one-to-many data transformations. - Paulo J. F. Carreira; Helena Galhardas; João Pereira 002; Fernando Martins; Mário J. Silva (QDB, 2007)

One-to-many data transformations through data mappers. - Paulo Carreira 001; Helena Galhardas; Antónia Lopes; João Pereira 002 (Data Knowl. Eng., 2007)

An Argumentation-based Approach to Database Repair. - Emanuel Santos; João Pavão Martins; Helena Galhardas (ECAI, 2010)

Master data management: A proof of concept. - Helena Galhardas; Luis Torres; João Damásio (ICIQ, 2010)

Subspace tree: high dimensional multimedia indexing with logarithmic temporal complexity. - Andreas Wichert; Pedro Teixeira; Pedro Santos; Helena Galhardas (J. Intell. Inf. Syst., 2010)

Support for User Involvement in Data Cleaning. - Helena Galhardas; Antónia Lopes; Emanuel Santos (DaWaK, 2011)

Benchmarking with TPC-H on Off-the-Shelf Hardware - An Experiments Report. - Anna Thanopoulou; Paulo Carreira 001; Helena Galhardas (ICEIS (1), 2012)

A Labeled Graph Kernel for Relationship Extraction - Gonçalo Simões; Helena Galhardas; David Martins de Matos (CoRR, 2013)

When Speed Has a Price: Fast Information Extraction Using Approximate Algorithms. - Gonçalo Simões; Helena Galhardas; Luis Gravano (Proc. VLDB Endow., 2013)

Specifying Complex Correspondences Between Relational Schemas in a Data Integration Environment. - Valéria Magalhães Pequeno; Helena Galhardas (ICEIS (1), 2014)

Using Complex Correspondences for Integrating Relational Data Sources. - Valéria Magalhães Pequeno; Helena Galhardas; Vânia Maria Ponte Vidal (ICEIS (Revised Selected Papers), 2014)

Specifying complex correspondences between relational schemas and RDF models for generating customized R2RML mappings. - Valéria Magalhães Pequeno; Vânia Maria Ponte Vidal; Marco A. Casanova; Luís Eufrasio T. Neto; Helena Galhardas (IDEAS, 2014)

REEL: A Relation Extraction Learning framework. - Pablo Barrio 002; Gonçalo Simões; Helena Galhardas; Luis Gravano (JCDL, 2014)

A Benchmark for Relation Extraction Kernels. - João L. M. Pereira; Helena Galhardas; Bruno Martins 001 (ADBIS, 2015)

Learning to Rank Adaptively for Scalable Information Extraction. - Pablo Barrio 002; Gonçalo Simões; Helena Galhardas; Luis Gravano (EDBT, 2015)

∂u∂u Multi-Tenanted Framework: Distributed Near Duplicate Detection for Big Data. - Pradeeban Kathiravelu; Helena Galhardas; Luís Veiga (OTM Conferences, 2015)

Automatic Generation of R2R Mappings from Correspondence Assertions. - Valéria Magalhães Pequeno; Vânia Maria Ponte Vidal; Tiago Vinuto; Helena Galhardas (SBBD (Short Papers), 2015)

Smart Scheduling of Continuous Data-Intensive Workflows with Machine Learning Triggered Execution. - Sérgio Esteves; Helena Galhardas; Luís Veiga (CoRR, 2016)

On-Demand Service-Based Big Data Integration: Optimized for Research Collaboration. - Pradeeban Kathiravelu; Yiru Chen; Ashish Sharma 001; Helena Galhardas; Peter Van Roy; Luís Veiga (DMAH@VLDB, 2017)

Umedicine: A System for Clinical Practice Support and Data Analysis. - Nuno F. Lages; Bernardo Caetano; Manuel J. Fonseca; João D. Pereira; Helena Galhardas; Rui Farinha (DMAH@VLDB, 2017)

LeanBench: comparing software stacks for batch and query processing of IoT data. - João M. P. Moreira; Helena Galhardas; Miguel L. Pardal (ANT/SEIT, 2018)

Adaptive Execution of Continuous and Data-intensive Workflows with Machine Learning. - Sérgio Esteves; Helena Galhardas; Luís Veiga (Middleware, 2018)

ConnectionLens: Finding Connections Across Heterogeneous Data Sources. - Camille Chanial; Rédouane Dziri; Helena Galhardas; Julien Leblay; Minh-Huong Le Nguyen; Ioana Manolescu (Proc. VLDB Endow., 2018)

On-demand big data integration - A hybrid ETL approach for reproducible scientific research. - Pradeeban Kathiravelu; Ashish Sharma 001; Helena Galhardas; Peter Van Roy; Luís Veiga (Distributed Parallel Databases, 2019)

CDRGen: A Clinical Data Registry Generator (Formal and/or Technical Paper). - Pedro Alves; Manuel J. Fonseca; João D. Pereira; Helena Galhardas (Poly/DMAH@VLDB, 2020)

Graph integration of structured, semistructured and unstructured data for data journalism. - Oana Balalau; Catarina Conceição; Helena Galhardas; Ioana Manolescu; Tayeb Merabti; Jingmao You; Youssr Youssef (CoRR, 2020)

Acronym Expander at SDU@AAAI-21: an Acronym Disambiguation Module. - João L. M. Pereira; Helena Galhardas; Dennis E. Shasha (SDU@AAAI, 2021)

Discovering Conflicts of Interest across Heterogeneous Data Sources with ConnectionLens. - Angelos-Christos G. Anadiotis; Oana Balalau; Théo Bouganim; Francesco Chimienti; Helena Galhardas; Mhd Yamen Haddad; Stephane Horel; Ioana Manolescu; Youssr Youssef (CIKM, 2021)

UNIANO: robust and efficient anomaly consensus in time series sensitive to cross-correlated anomaly profiles. - Leonor Silva; Helena Galhardas; Vasco Manquinho; Rui Henriques (SDM, 2021)

Empowering Investigative Journalism with Graph-based Heterogeneous Data Management. - Angelos-Christos G. Anadiotis; Oana Balalau; Théo Bouganim; Francesco Chimienti; Helena Galhardas; Mhd Yamen Haddad; Stephane Horel; Ioana Manolescu; Youssr Youssef (IEEE Data Eng. Bull., 2021)

Consolidation of Massive Medical Emergency Events With Heterogeneous Situational Context Data Sources. - Thomas James Z. Tiam-Lee; Rui Henriques; José Costa; Vasco Manquinho; Helena Galhardas (EDBT/ICDT Workshops, 2022)

DeepData: Machine learning in the marine ecosystems. - Leonor Silva; Magda Resende; Helena Galhardas; Vasco Manquinho; Inês Lynce (Expert Syst. Appl., 2022)

Graph integration of structured, semistructured and unstructured data for data journalism. - Angelos-Christos G. Anadiotis; Oana Balalau; Catarina Conceição; Helena Galhardas; Mhd Yamen Haddad; Ioana Manolescu; Tayeb Merabti; Jingmao You (Inf. Syst., 2022)

AcX: System, Techniques, and Experiments for Acronym Expansion. - João L. M. Pereira; João Casanova; Helena Galhardas; Dennis E. Shasha (Proc. VLDB Endow., 2022)

Efficiently Identifying Disguised Missing Values in Heterogeneous, Text-Rich Data. - Théo Bouganim; Helena Galhardas; Ioana Manolescu (Trans. Large Scale Data Knowl. Centered Syst., 2022)

STaR: Space and Time-aware Statistic Query Answering. - Oana Balalau; Simon Ebel; Helena Galhardas; Théo Galizzi; Ioana Manolescu (CIKM, 2024)

Cleenex: Support for User Involvement during an Iterative Data Cleaning Process. - João L. M. Pereira; Manuel J. Fonseca; Antónia Lopes; Helena Galhardas (ACM J. Data Inf. Qual., 2024)