[Elsnet-list] ANN: Corpus of 147 million quasi-relational Web tables released for public download
robert at informatik.uni-mannheim.de
Thu Mar 6 16:43:16 CET 2014
the Team of Web Data Commons  is happy to announce the release of a
corpus containing 147 million quasi-relational Web tables.
The Web contains vast amounts of HTML tables. Most of these tables are
used for layout purposes, but a fraction of the tables is also
quasi-relational, meaning that they contain structured data describing a
set of entities.
A corpus of Web tables can be useful for research and applications in
areas such as data search, table augmentation, knowledge base
construction, and for various NLP tasks.
The WDC Web Tables corpus has been extracted from the 2012 version of
the Common Crawl , the largest Web crawl that is available to the
public. The corpus contains the subset of the 11 billion HTML tables
found in the Common Crawl that are likely quasi-relational.
There are similar corpora at Google and Microsoft, but our corpus is the
only one of this size available to the public
More information about the corpus, its application domains as well as
information about how to download the corpus is found at
Beside of being a good test bed for your Search Join engine and a great
resource for enriching DBpedia, the tables corpus might also be useful
for some of the people in the group working on NLP tasks.
Chair of Information Systems V
Web-based Systems Group
B6, 26, Room C1.04
Phone: +49 621 181 2648
Mail: robert at informatik.uni-mannheim.de
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