> > However we should have in mind that it may be needed for the > auto-suggest framework to also work with the real DB content, e.g. to > give a hint as to how many results are to be expected. Hence my musings
Both scenarios are possible, from DB as well as from Lucene. Lucene excels in speed and certain features needed for semantic lookup (like building trees of items, but plus the search capability it offers - imagine, you can do combination of soundex + lexical similarity + surname frequency lookup), while DB is better for other kind of lookups and complicated queries > about cross-linking semantic suggestions with DB-content-driven > suggestions two weeks ago (and in previous meetings). Having two DB > systems around (Lucene, Invenio) makes this type of cross-suggestions > a bit harder infrastructure-wise. Yes, but only 'a bit' harder, it is actually very simple. > > A concrete use case for DB-driven-suggestions are inputters needs, when > the query can be as convoluted as: the cataloger starts typing Geneva in > the address field, the system looks up in the Institutes database how > many different institutions we have with the address town Geneva, then > looks up how many papers we have in the system coming from these > institutions, and then rank final institution name propositions To my mind, the lookups should be fast or super-fast, I am not sure, if suddenly all values become autosuggestable, it is a good thing - besides, that can really increase the load of the database and degrade performance for everybody. Some of you might know the glocals.ch site, once they switched to the system with a lot of lookups, it suddenly got so bad (on the live site) that people started leaving the site. For the INSPIRE inputters' lookup, it is probably not a big problem, nevertheless, I still believe even for them one wants to configure carefully what can be autocompleted and what not. Best, roman > accordingly (e.g. CERN would come before University of Geneva). This > example is what Marko was working on via KBDs. > > Best regards > -- > Tibor Simko >
