<p>Tag information for BL Flickr Commons, from 11 Dec 2013 - 11 Dec 2014.</p>
<p>Tab-separated, UTF-8 encoded file, each row corresponds to a tag change. A change is simply a tag being added or removed. The image's metadata is harvested regularly so that we can spot when a tag has been added or has been removed. It is not clear if it is possible to work out when a tag has been precisely added from Flickr's API or hidden information within the tag's identifier.</p>
<p> </p>
<p>The TSV has the following columns:</p>
<p>flickrid - The id of the image.</p>
<p>enteredtext - The text typed in by a contributor.</p>
<p>from - the epoch time (in seconds) since the last data harvest before the 'to' harvest.</p>
<p>to - the epoch time of the metadata harvest that the change was detected in</p>
<p>tagid - The tag identifier supplied by Flickr</p>
<p>author - The user's account who added the tag</p>
<p>tag - The simplified version of the text, used in flickr's URLs and so on.</p>
<p>mode - either 'add' or 'del', showing that a tag has either been added since last harvest, or that it has been removed since then.</p
