A dataset in described with structured metadata in schema.org microdata

one-data-set-microdata.html

<div itemscope itemtype="http://schema.org/Dataset" itemid="homes-1m-redfin-2016">
    <meta itemprop="url" content="http://s3-api.us-geo.objectstorage.softlayer.net/opendata/misc/milliondollarhomes.csv" />
    <h2>US Income</h2>
    <i>(homes-1m-redfin-2016)</i>
    <div class="description">Homes that sold for over a million USD in northeastern Massachusetts in a 3-month period in late 2016.</div>
    <div itemprop="publisher" itemscope itemtype="http://schema.org/Organization">
        Publisher:
        <span itemprop="name">Raj Singh</span>
    </div>
    <div class="keywords">Keywords: housing,income</div>
    <div itemprop="contentSize" content="0.102092">Size: 0.102092 MB</div>
    <div itemprop="version" content="2017-10-03">Last Modified: 2017-10-03</div>
    <div itemprop="encodingFormat" content="text/csv" class="download-link">Download CSV:
        <a href="http://s3-api.us-geo.objectstorage.softlayer.net/opendata/misc/milliondollarhomes.csv">http://s3-api.us-geo.objectstorage.softlayer.net/opendata/misc/milliondollarhomes.csv</a>
    </div>
    <div itemprop="contentSize" content="0.3584">Size: 0.3584 MB</div>
    <div itemprop="version" content="2017-10-03">Last Modified: 2017-10-03</div>
    <div itemprop="encodingFormat" content="application/json" class="download-link">Download GeoJSON:
        <a href="http://s3-api.us-geo.objectstorage.softlayer.net/opendata/misc/milliondollarhomes.geojson">http://s3-api.us-geo.objectstorage.softlayer.net/opendata/misc/milliondollarhomes.geojson</a>
    </div>
</div>