(function(doc, html, url) { var widget = doc.createElement("div"); widget.innerHTML = html; var script = doc.currentScript; // e = a.currentScript; if (!script) { var scripts = doc.scripts; for (var i = 0; i < scripts.length; ++i) { script = scripts[i]; if (script.src && script.src.indexOf(url) != -1) break; } } script.parentElement.replaceChild(widget, script); }(document, '
Data
The dataset is corrected for measurement errors and adds new attributes to the normal attributes of official data sources, such as daily mortality, and fatality rates. We evaluate the measurement errors of COVID-19 official data collections from the Chinese Center for Disease Control and Prevention (Chinese CDC), World Health Organization (WHO) and European Centre for Disease Prevention and Control (ECDC). The data is collected by using text mining techniques and reviewing pdf reports, metadata, and reference data. The combined dataset includes complete spatial data such as countries area, international number of countries, Alpha-2 code, Alpha-3 code, latitude, longitude, and some additional attributes such as population. The improved dataset benefits from major corrections on the referenced data sets and official reports such as adjustments in the reporting dates, which suffered from a one to two days lag, removing negative values, detecting unreasonable changes in historical data in new reports and corrections on systematic measurement errors, which have been increasing as the pandemic outbreak spreads and more countries contribute data for the official repositories.
Related
A COVID-19 dashboard with minimum systematic measurement errors base on the results of this article.
Open access
Download the article for free.
Press release
Nova University of Lisbon News website.
Press release
Estudo conduzido pelos Professores da NOVA IMS Jorge Bravo e Afshin Ashofteh mostra “imprecisões significativas” quando compara as bases de dados da Organização Mundial da Saúde (OMS), do Centro Europeu para o Controlo e Prevenção de Doenças e do Centro Chinês para o Controlo e Prevenção de Doenças.
Interview
HEALTHNEWS
Interview
Jornal Económico is a Portuguese newspaper, specialized in economics and finance.
Press release
TVI 24 is a private Portuguese basic cable and satellite television news channel owned by TVI.
Press release
A Portuguese daily newspaper published in Lisbon, Portugal.
Other
We started a debate about COVID-19 datasets quality on Linkedin with the following three questions: 1- Have been guidelines, standards, and ontologies developed enough for rapid data documentation and new data creation and collection? 2- Why the data of COVID-19, presented by well-known Dashboards are different from the official reports of their references at any point in time? Do they have reach to the special source of data that is out of the reach of International responsible authorities? 3- How much error should we expect in the result of our researches, if we have no idea about the measurement error of our datasets before starting our study? We appreciate the researchers to share their ideas in the comments of this Linkedin article.
Other
We started a debate about COVID-19 datasets quality on ResearchGate with the following three questions: 1- Have been guidelines, standards, and ontologies developed enough for rapid data documentation and new data creation and collection? 2- Why the data of COVID-19, presented by well-known Dashboards are different from the official reports of their references at any point in time? Do they have reach to the special source of data that is out of the reach of International responsible authorities? 3- How much error should we expect in the result of our researches, if we have no idea about the measurement error of our datasets before starting our study? We appreciate the researchers to share their ideas in the comments of this ResearchGate question.
Press release
SAPO, Servidor de Apontadores Portugueses Online, is a brand and subsidiary company of Altice Portugal. It is a media content and services provider that started out as a search engine when founded in 1995.