Results 21 to 30 of about 1,780,043 (218)

Data integration with uncertainty [PDF]

The VLDB Journal, 2008
This paper reports our first set of results on managing uncertainty in data integration. We posit that data-integration systems need to handle uncertainty at three levels, and do so in a principled fashion. First, the semantic mappings between the data sources and the mediated schema may be approximate because there may be too many of them to be ...
Xin Luna Dong, Alon Y. Halevy, Cong Yu 0001   +2 more
openaire   +2 more sources

CIDACS-RL: a novel indexing search and scoring-based record linkage system for huge datasets with high accuracy and scalability

BMC Medical Informatics and Decision Making, 2020
Background Record linkage is the process of identifying and combining records about the same individual from two or more different datasets. While there are many open source and commercial data linkage tools, the volume and complexity of currently ...
George C. G. Barbosa, M. Sanni Ali, Bruno Araujo, Sandra Reis, Samila Sena, Maria Y. T. Ichihara, Julia Pescarini, Rosemeire L. Fiaccone, Leila D. Amorim, Robespierre Pita, Marcos E. Barreto, Liam Smeeth, Mauricio L. Barreto   +12 more
doaj   +1 more source

Cesarean sections and early-term births according to Robson classification: a population-based study with more than 17 million births in Brazil

BMC Pregnancy and Childbirth, 2023
Background Cesarean section (CS) rates are increasing worldwide and are associated with negative maternal and child health outcomes when performed without medical indication. However, there is still limited knowledge about the association between high CS
Aline S. Rocha, Enny S. Paixao, Flavia Jôse O. Alves, Ila R. Falcão, Natanael J. Silva, Camila S. S. Teixeira, Naiá Ortelan, Rosemeire L. Fiaccone, Laura C. Rodrigues, Maria Yury Ichihara, Mauricio L. Barreto, Marcia F. de Almeida, Rita de Cássia Ribeiro-Silva   +12 more
doaj   +1 more source

Differences in risk factors for incident and recurrent preterm birth: a population-based linkage of 3.5 million births from the CIDACS birth cohort

BMC Medicine, 2022
Background Preterm birth (PTB) is a syndrome resulting from a complex list of underlying causes and factors, and whether these risk factors differ in the context of prior PTB history is less understood.
Aline S. Rocha, Rita de Cássia Ribeiro-Silva, Rosemeire L. Fiaccone, Enny S. Paixao, Ila R. Falcão, Flavia Jôse O. Alves, Natanael J. Silva, Naiá Ortelan, Laura C. Rodrigues, Maria Yury Ichihara, Marcia F. de Almeida, Mauricio L. Barreto   +11 more
doaj   +1 more source

Harvesting metadata in clinical care: a crosswalk between FHIR, OMOP, CDISC and openEHR metadata

Scientific Data, 2022
Metadata describe information about data source, type of creation, structure, status and semantics and are prerequisite for preservation and reuse of medical data.
Caroline Bönisch, Dorothea Kesztyüs, Tibor Kesztyüs   +2 more
doaj   +1 more source

Vaccine coverage and effectiveness against laboratory-confirmed symptomatic and severe Covid-19 in indigenous people in Brazil: a cohort study

BMC Public Health, 2023
Background Indigenous people have historically suffered devastating impacts from epidemics and continue to have lower access to healthcare and be especially vulnerable to respiratory infections.
Julia M. Pescarini, Andrey M. Cardoso, Ricardo Ventura Santos, Priscila F. Scaff, Enny S. Paixao, Otavio T. Ranzani, Thiago Cerqueira-Silva, Viviane S. Boaventura, Juracy Bertoldo-Junior, Vinicius A. de Oliveira, Guilherme L. Werneck, Mauricio L. Barreto, Manoel Barral-Netto   +12 more
doaj   +1 more source

Biases arising from using linked administrative data for research: A conceptual framework from registration to analysis.

International Journal of Population Data Science, 2022
Objectives Administrative data are primarily collected for operational processes and these processes can lead to sources of bias that may not be adequately considered by researchers.
Richard Shaw, Katie Harron, Julia Pescarini, Elzo Júnior, Andressa Siroky, Desmond Campbell, Ruth Dundas, Maria Yury Ichihara , Mauricio Barreto, Vittal Katikireddi   +9 more
doaj   +1 more source

Characteristics of mental health service use of Brazilian children using routine health records

International Journal of Population Data Science, 2022
Background To investigate the clinical epidemiological characteristics of a large data set of visits to outpatient children mental health services in Brazil, as well as to identify relevant relationships between age, sex and three common mental ...
Jacyra Araujo, Elisângela da Silva Rodrigues, Luis Fernando Silva Castro-de-Araujo, Daiane Borges Machado, Maurício L Barreto   +4 more
doaj   +1 more source

Graph-based Data Integration for System Integrity and Scalable Analytics [PDF]

, 2022
Data from heterogeneous sources need to be brought together for numerous purposes ranging from data consolidation, reporting, and analytics to long-term preservation. The bringing about of these data sources is commonly known as data integration.
Arshad, B.
core   +1 more source

Integrated genome sizing (IGS) approach for the parallelization of whole genome analysis

BMC Bioinformatics, 2018
Background The use of whole genome sequence has increased recently with rapid progression of next-generation sequencing (NGS) technologies. However, storing raw sequence reads to perform large-scale genome analysis pose hardware challenges.
Peter Sona, Jong Hui Hong, Sunho Lee, Byong Joon Kim, Woon-Young Hong, Jongcheol Jung, Han-Na Kim, Hyung-Lae Kim, David Christopher, Laurent Herviou, Young Hwan Im, Kwee-Yum Lee, Tae Soon Kim, Jongsun Jung   +13 more
doaj   +1 more source