Make searches with ‘query expansion’ customisable
We would like to be able to add, remove or edit query expansion topic matches to improve the topic and subject matches and prevent incorrect query expansion.
Query expansion is supposed to link synonymous subjects and topics, so the user doesn’t have to enter all terms in their search (e.g. ‘heart attack’ and ‘myocardial infarction’). Sometimes the query expansion function gives incorrect or unhelpful topic matches. For example a search for ‘civil litigation’ automatically expands to include ‘jurisprudence’. These are not synonymous terms.
ExLibris tell us that currently it isn’t possible to change or remove specific instances of query expansion, you can only turn the whole feature on or off.
I agree. When searching coastal erosion, the Automated Query Expansion includes coast changes. The difference in results for students is 1,002,477 results with AQE versus 76,921 with just Coastal Erosion. We want to narrow the results, not broaden them. Please give us the ability to disable AQE.