Indexing numbers for search

[michal]

Guys,
I noticed that you chose not to index numbers as search keywords (in the search keyword index table). Was there any particular reason for this decision?
Thanks,
Michal

[asmecher]

Hi Michal,

There's nothing specifically excluding numbers, except that they're often shorter than the minimum index length (see config.inc.php in the [search] section under min_word_length).

Regards,
Alec Smecher
Public Knowledge Project Team
---
Don't miss the First International PKP Scholarly Publishing Conference
July 11 - 13, 2007, Vancouver, BC, Canada
http://ocs.sfu.ca/pkp2007/

[michal]

I could be horribly wrong here but method filterKeywords (not 100% sure if it is used in the indexing process itself) in SearchIndex.inc.php on line 107 seems to be stripping numbers from a search query - after I removed the is_number() condition from it and rebuilt the index I got all my numbers indexed (eg. a year in a title) previously they did not appear to be indexed at all.
Thanks,
Michal

in SearchIndex.inc.php
line 107 (approx) if (!isset($stopwords[$k]) && String::strlen($k) >= $minLength && !is_numeric($k))

[asmecher]

Hi michal,

My mistake -- that's correct. Moving the is_numeric condition will cause numbers to be indexed.

Regards,
Alec Smecher
Public Knowledge Project Team
---
Don't miss the First International PKP Scholarly Publishing Conference
July 11 - 13, 2007, Vancouver, BC, Canada
http://ocs.sfu.ca/pkp2007/