Helena Galhardas
Helena Galhardas
INESC-ID and Instituto Superior Técnico, University of Lisbon
Verified email at ist.utl.pt - Homepage
TitleCited byYear
Declarative data cleaning: Language, model, and algorithms
H Galhardas, D Florescu, D Shasha, E Simon, C Saita
AJAX: An extensible data cleaning tool
H Galhardas, D Florescu, D Shasha, E Simon
ACM Sigmod Record 29 (2), 590, 2000
An extensible framework for data cleaning
H Galhardas, D Florescu, D Shasha, E Simon
A survey of data quality tools.
J Barateiro, H Galhardas
Datenbank-Spektrum 14 (15-21), 48, 2005
A taxonomy of data quality problems
P Oliveira, F Rodrigues, P Henriques, H Galhardas
2nd Int. Workshop on Data and Information Quality, 219-233, 2005
Improving Data Cleaning Quality Using a Data Lineage Facility.
H Galhardas, D Florescu, DE Shasha, E Simon, CA Saita
DMDW, 3, 2001
Declaratively cleaning your data using AJAX
H Galhardas, D Florescu, D Shasha, E Simon
In Journees Bases de Donnees, 2000
Efficient development of data migration transformations
P Carreira, H Galhardas
Proceedings of the 2004 ACM SIGMOD international conference on Management of …, 2004
Execution of data mappers
P Carreira, H Galhardas
Proceedings of the 2004 international workshop on Information quality in …, 2004
A framework for classifying scientific metadata
H Galhardas, E Simon, A Tomasic
AAAI Workshop on AI and Information integration, Madison, Wisconsin, 1998
One-to-many data transformations through data mappers
P Carreira, H Galhardas, A Lopes, J Pereira
Data & Knowledge Engineering 62 (3), 483-503, 2007
Data mapper: An operator for expressing one-to-many data transformations
P Carreira, H Galhardas, J Pereira, A Lopes
International Conference on Data Warehousing and Knowledge Discovery, 136-145, 2005
Support for user involvement in data cleaning
H Galhardas, A Lopes, E Santos
International Conference on Data Warehousing and Knowledge Discovery, 136-151, 2011
Information Extraction tasks: a survey
G Simoes, H Galhardas, L Coheur
Benchmarking with TPC-H on off-the-shelf Hardware
A Thanopoulou, P Carreira, H Galhardas
ICEIS (1), 205-208, 2012
Data cleaning and transformation using the AJAX framework
H Galhardas
International Summer School on Generative and Transformational Techniques in …, 2005
Specifying complex correspondences between relational schemas and RDF models for generating customized R2RML mappings
VM Pequeno, VMP Vidal, MA Casanova, LET Neto, H Galhardas
Proceedings of the 18th International Database Engineering & Applications …, 2014
When speed has a price: Fast information extraction using approximate algorithms
G Simões, H Galhardas, L Gravano
Proceedings of the VLDB Endowment 6 (13), 1462-1473, 2013
Subspace tree: High dimensional multimedia indexing with logarithmic temporal complexity
A Wichert, P Teixeira, P Santos, H Galhardas
Journal of Intelligent Information Systems 35 (3), 495-516, 2010
An argumentation-based approach to database repair
E Santos12, JP Martins, H Galhardas
ECAI 2010: 19th European Conference on Artificial Intelligence, 16-20 August …, 2010
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Articles 1–20