Dataset Open Access

HWRT database of handwritten symbols

Thoma, Martin


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        <foaf:name>Thoma, Martin</foaf:name>
        <foaf:givenName>Martin</foaf:givenName>
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    <dct:title>HWRT database of handwritten symbols</dct:title>
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    <dct:issued rdf:datatype="http://www.w3.org/2001/XMLSchema#gYear">2015</dct:issued>
    <dcat:keyword>symbol</dcat:keyword>
    <dcat:keyword>LaTeX</dcat:keyword>
    <dcat:keyword>mathematics</dcat:keyword>
    <dcat:keyword>pattern recognition</dcat:keyword>
    <dcat:keyword>machine learning</dcat:keyword>
    <dcat:keyword>on-line recognition</dcat:keyword>
    <dct:issued rdf:datatype="http://www.w3.org/2001/XMLSchema#date">2015-01-28</dct:issued>
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    <dct:description>&lt;p&gt;The HWRT database of handwritten symbols contains on-line data of handwritten symbols such as all alphanumeric characters, arrows, greek characters and mathematical symbols like the integral symbol.&lt;/p&gt; &lt;p&gt;The database can be downloaded in form of bzip2-compressed tar files. Each tar file contains:&lt;/p&gt; &lt;ul&gt; &lt;li&gt;symbols.csv: A CSV file with the rows symbol_id, latex, training_samples, test_samples. The symbol id is an integer, the row latex contains the latex code of the symbol, the rows training_samples and test_samples contain integers with the number of labeled data.&lt;/li&gt; &lt;li&gt;train-data.csv: A CSV file with the rows symbol_id, user_id, user_agent and data.&lt;/li&gt; &lt;li&gt;test-data.csv: A CSV file with the rows symbol_id, user_id, user_agent and data.&lt;/li&gt; &lt;/ul&gt; &lt;p&gt;All CSV files use ";" as delimiter and "'" as quotechar. The data is given in YAML format as a list of lists of dictinaries. Each dictionary has the keys "x", "y" and "time". (x,y) are coordinates and time is the UNIX time.&lt;/p&gt; &lt;p&gt; &lt;/p&gt; &lt;p&gt;About 90% of the data was made available by Daniel Kirsch via github.com/kirel/detexify-data. Thank you very much, Daniel!&lt;/p&gt;</dct:description>
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