Hi Gan,
beside of the WDC gold standard with 25 categories, we also did some experiments using 222 leaf categories from Open IceCat.
Information about the WDC-25 and the WDC-222 Gold Standards is found here
http://webdatacommons.org/categorization/index.html
http://data.dws.informatik.uni-mannheim.de/largescaleproductcorpus/categorization/
Cheers,
Chris