<http://webisa.webdatacommons.org/51847143>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<blogspot.com> .
<http://webisa.webdatacommons.org/51847143>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/51847143>	<http://www.w3.org/ns/prov#value>	"The key utility measure is user happiness...This is a point that is often missed in information retrieval.In the original Cranfield experiments (1960s), didn't Cleverdon propose 6 different metrics of information retrieval effectiveness?" .
<http://webisa.webdatacommons.org/prov/93136042>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/51847143> .