Thanks Pat, but it doesn't work, I guess I have to upgrade to TS 3.x in order to use this rank_mode:SPH_RANK_EXPR then. Many thanks though :)
On Wednesday, December 10, 2014 3:17:27 AM UTC-5, Pat Allan wrote: > > I’m not sure it *will* work, but try the following options in your search > query: > > :rank_mode => :expr, :rank_expr => “1+2” > > — > Pat > > On 10 Dec 2014, at 6:49 pm, Terence Lin <[email protected] > <javascript:>> wrote: > > Hi Pat, > > I'm still on TS 2.0.14, am I actually able to use rank_mode => "expr(1+2)" > in older version of TS? > > Thanks, > Terence > > On Thursday, May 15, 2014 9:05:48 AM UTC-4, Pat Allan wrote: >> >> Hi Travis >> >> You got pretty close - the :ranker option in a search call ends up in the >> OPTION sections… so, :ranker => “expr(1+2)” will work. >> >> Cheers >> >> — >> Pat >> >> On 14 May 2014, at 10:18 am, Travis J I Corcoran <[email protected]> >> wrote: >> >> >> I've been using TS for a while now. Great product - thanks! >> >> I'm getting complaints from our users that the ranking of results is not >> great. OK - Sphinx allows a lot of options. >> >> I've figured out WeightEnumeratorMask and I've figured out how to use >> :ranker => SPH04 and that works decently...but there's so much more that >> can be done. At least at the Sphinx level. >> >> Reading the Sphinx docs here >> http://sphinxsearch.com/docs/current.html#ranking-factors >> I see that I might want to sort by, say >> >> 5 * weight() + sum(lcs) + 2 * wordcount() >> >> I've tried to specify :ranker => 'expr', but then I get the error >> >> ThinkingSphinx::SphinxError: missing ranker expression (use OPTION >> ranker=expr('1+2') for example) - SELECT *, sum(word_count) as custom >> FROM `title_core` WHERE MATCH('Batman') AND `sphinx_deleted` = 0 ORDER BY >> `custom` DESC LIMIT 0, 20 OPTION ranker=expr; SHOW META >> >> >> where do I put this >> >> OPTION ranker=expr('1+2') >> >> >> ? >> >> It doesn't go in the :select argument, because if I try that I get an >> error. >> >> tl;dr can someone supply an example that uses SPH_RANK_EXPR and a >> moderately complex custom ranking algorithm? >> >> Many thanks! >> >> >> Travis >> >> -- >> You received this message because you are subscribed to the Google Groups >> "Thinking Sphinx" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> To post to this group, send email to [email protected]. >> Visit this group at http://groups.google.com/group/thinking-sphinx. >> For more options, visit https://groups.google.com/d/optout. >> >> >> > IMPORTANT NOTICE: This message, including any attachments (hereinafter > collectively referred to as "Communication"), is intended only for the > addressee(s) > named above. This Communication may include information that is > privileged, confidential and exempt from disclosure under applicable law. > If the recipient of this Communication is not the intended recipient, or > the employee or agent responsible for delivering this Communication to the > intended recipient, you are notified that any dissemination, distribution > or copying of this Communication is strictly prohibited. If you have > received this Communication in error, please notify the sender immediately > by phone or email and permanently delete this Communication from your > computer without making a copy. Thank you. > > -- > You received this message because you are subscribed to the Google Groups > "Thinking Sphinx" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected] <javascript:>. > To post to this group, send email to [email protected] > <javascript:>. > Visit this group at http://groups.google.com/group/thinking-sphinx. > For more options, visit https://groups.google.com/d/optout. > > > -- IMPORTANT NOTICE: This message, including any attachments (hereinafter collectively referred to as "Communication"), is intended only for the addressee(s) named above. This Communication may include information that is privileged, confidential and exempt from disclosure under applicable law. If the recipient of this Communication is not the intended recipient, or the employee or agent responsible for delivering this Communication to the intended recipient, you are notified that any dissemination, distribution or copying of this Communication is strictly prohibited. If you have received this Communication in error, please notify the sender immediately by phone or email and permanently delete this Communication from your computer without making a copy. Thank you. -- You received this message because you are subscribed to the Google Groups "Thinking Sphinx" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/thinking-sphinx. For more options, visit https://groups.google.com/d/optout.
