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datacommons.org

datacommons.org is an open knowledge repository hosted by Google that provides a unified view across multiple public datasets, combining economic, scientific and other open datasets into an integrated data graph.

The datacommons.org site was launched in May 2018 with an initial dataset consisting of fact-checking data published in Schema.org "ClaimReview" format by several fact checkers from the International Fact-Checking Network [1]. The service expanded during 2019 to include an RDF-style Knowledge Graph populated from a number of largely statistical open datasets. The service was announced to a wider audience in 2019[2]. In 2020 the service improved its coverage of non-US datasets, while also increasing its coverage of bioinformatics and coronavirus. [3]

Features

The emphasis of datacommons.org is more focused on statistical data than is common for Linked Data and knowledge graph initiatives. It centers on the entity-oriented integration of statistical observations from a variety of public datasets. As such, although it supports a subset of the W3C SPARQL query language,[4] its APIs [5] also include tools - such as a Pandas dataframe interface - oriented towards data science, statistics and data visualization.

The most important feature of datacommons.org is that it is integrative. Rather than providing a hosting platform for diverse datasets, it also attempts to consolidate much of the information the datasets provide into a single data graph.

Technology

The datacommons.org approach is built on a graph data-model. The graph can be accessed through several APIs, and is expanded through loading data (typically CSV and MCF-based templates). [6]. The data vocabulary used to define the datacommons.org graph is based upon Schema.org. In particular the schema.org terms StatisticalPopulation [7] and Observation [8] were proposed to Schema.org to support datacommons-like usecases. [9]

Software from the project is available on Github under Apache 2 license. [10]



Category:Google Category:Open_data Category:Knowledge_graphs

  1. ^ "Fact Checks". datacommons.org. 29 March 2019. Retrieved 14 October 2020.
  2. ^ "Doing our part to share open data responsibly". The Keyword. Google. Retrieved 14 October 2020.
  3. ^ Ramasubramanian, Sowmya (21 September 2020). "Google's open source data to study impact of COVID-19". The Hindu. Retrieved 14 October 2020.
  4. ^ "Query the Data Commons Knowledge Graph using SPARQL". datacommons.org. Retrieved 14 October 2020.
  5. ^ "Overview". datacommons.org. Retrieved 14 October 2020.
  6. ^ "Contributing to Data Commons - Adding datasets". datacommons.org. Data Commons.
  7. ^ "StatisticalPopulation type at Schema.org". schema.org. Retrieved 14 October 2020.
  8. ^ "Observation type at Schema.org". schema.org. Retrieved 14 October 2020.
  9. ^ "Proposal for representing Aggregate Statistical Data". Github - Schema.org repository. 25 June 2019. Retrieved 14 October 2020.
  10. ^ "datacommons.org github".
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