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Upgrade: pretraživanje

 
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njava
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Joined: 25 Aug 2003
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Location: Zagreb

PostPosted: 22.10.2003 11:17    Post subject: Upgrade: pretraživanje Add user to your forum ignore list Reply with quote

pretraživanje je apgrejdano, sada ne nalazi samo cijele riječi nego i sve što počinje s traženim keywordima.

primjer:
ako upišete: black
dobiti ćete (pod korisnici):
blackduke
blackshtef
ali i mad hatter (njegov web site je blackdrop.uchee...)

testirajte malo i javite da li se pojavljuju irelevantni rezultati. u tom slucaju mozemo malo stegnuti kriterije.
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che.UP
mi3.crew


Joined: 07 Sep 2003
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PostPosted: 22.10.2003 23:39    Post subject: Add user to your forum ignore list Reply with quote

bilo bi dobro da se zbolda search string tak da bude odma uocljiv u kontekstu, a ne da moras citat 2-3 reda da skuzis da to nije to kaj oces :)

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njava
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PostPosted: 23.10.2003 12:50    Post subject: Add user to your forum ignore list Reply with quote

evo čevap, dodano...
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che.UP
mi3.crew


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PostPosted: 23.10.2003 22:18    Post subject: Add user to your forum ignore list Reply with quote

jebate koji bold :) zbediras se kad vidis :)

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blackduke
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PostPosted: 23.10.2003 22:46    Post subject: Add user to your forum ignore list Reply with quote

hmm.
neoj se ljutit al cudan ti je taj search.

eo recimo, upisem duke, on NE izbaci moj username (zakaj samo s pocetka rijeci, pa tak ni jedan search ne radi), ali izbaci 4rezultata i nigdje ne pobolda duke, pa neznam od kud je to izvuko, di je naso to :)

ha?
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njava
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PostPosted: 24.10.2003 11:24    Post subject: Add user to your forum ignore list Reply with quote

seceru, normalno da ti ne izblaci nusta za duke. daj u gugl napisi duke pa mi reci jel nalazi tvoj sajt. dobro, duke je generalni upit pa bus dobio tonu rezultata al probaj recimo sa ackduke. nego, duke ovo duke ono, jesi ti nesto u rodu onom striceku narcisu?

search radi ovako:
- pretrazuju se za zapisi po modulima, u njuzima title+content, u tutorialima title+abstract, u galeriji title+description+tools_used itd.
- osim toga, pretrazuju se i komentari na svaki zapis, ali se tim rezultatima dodjeljuje manji rejting (0.2 faktor)
- rezultati se sortiraju prema ukupnom rejtingu

- kod ispisa rezultata se prikazuje naziv rezultata i prvih 128 znakova iz opisa/sadrzaja. ako nista ne pobolda onda u tih prvih 128 znakova nije bilo trazene rijeci.

- upisi duke u search, odi na prvi rezultat, ctrl+f duke -> 'true, true, ovo sto duke kaze.' -> taj duke ti je nasao
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zytzagoo
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PostPosted: 24.10.2003 13:24    Post subject: Add user to your forum ignore list Reply with quote

Uz već spomenuto samo bi spomenuo - google ti traži isključivo ono što si napisao. I bilo koji drugi search engine... Na manjem siteu ti mozes raditi svoj search, pa onda stavljati upite sa LIKE %string% i slicno... pa ce ti to nalaziti sve i svasta... poanta searcha doduse nije samo da se u searchu nesto pojavi, nego da se pojavi relevantan rezultat, koji zadovoljava ono sto si i trazio.
ti sa 'duke' nisi trazio blackduke. trazio si duke Smile

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blackduke
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PostPosted: 24.10.2003 15:48    Post subject: Add user to your forum ignore list Reply with quote

e, da. ovo bi trebali bit
Quote:
LIKE %string%

:)
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njava
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PostPosted: 24.10.2003 16:24    Post subject: Add user to your forum ignore list Reply with quote

procitaj zytov post iznad.
ponovo ga procitaj.
nakon toga cu citirat
Quote:
poanta searcha doduse nije samo da se u searchu nesto pojavi, nego da se pojavi relevantan rezultat, koji zadovoljava ono sto si i trazio.


nije LIKE %string% nego LIKE '%string%'. ono prvo baca error jer je sintakticki neispravno fkorz.

sa like ne mozes dobiti nikakvu informaciju o relevantnosti rezultata nego samo 1 (ima) ili 0 (nema). to je u banani.
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che.UP
mi3.crew


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PostPosted: 30.10.2003 11:09    Post subject: Re: Upgrade: pretraživanje Add user to your forum ignore list Reply with quote

njava wrote:
pretraživanje je apgrejdano, sada ne nalazi samo cijele riječi nego i sve što počinje s traženim keywordima.


pazi sad.
ocu dodat njuz za http://www.group94.com/. pejstam link u srč - nema rezultata.
super. dodam njuz.
srčam opet njuze za http://www.group94.com/ - nema rezultata, isto kao i za www.group94.com. jedino sto nadje je kad srčam samo group94

dakem, bilo bi ljepo da se mogu i linkovi srčat.

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njava
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PostPosted: 30.10.2003 14:09    Post subject: Add user to your forum ignore list Reply with quote

nije stvar u linkovima i nelinkovima nego (u ovom slucaju) o znaku '.' (tocka)
trenutna verzija mysqla koja je na serveru se divlje ponasa sa boolean fulltext searchanjem kada se u search stringu nalazi bilo koji nonword character. zbog toga je trenutno apliciran quick hack (tm) koji ubije te znakove iz search stringa.
upgrade mysqla ide vrlo skoro i tada ce search raditi skroz kako treba.
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che.UP
mi3.crew


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PostPosted: 30.10.2003 18:20    Post subject: Add user to your forum ignore list Reply with quote

njava wrote:
zbog toga je trenutno apliciran quick hack (tm)


hihihi :)

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njava
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PostPosted: 06.11.2003 16:07    Post subject: Add user to your forum ignore list Reply with quote

apgrejdan mysql (4.0.16) i sredjeno pretraživanje.
sada www.group94.com daje rezultate, još bolji rezultat dobiješ sa "www.group94.com"
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mi3.crew


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PostPosted: 06.11.2003 16:54    Post subject: Add user to your forum ignore list Reply with quote

njava wrote:
apgrejdan mysql (4.0.16) i sredjeno pretraživanje.
sada www.group94.com daje rezultate, još bolji rezultat dobiješ sa "www.group94.com"


jel mi mos objasnit logiku rezultata kad unesem u search link bez navodnika?
isfura gro rezultata a nema veze s vezom...

ovo s navodnicima je jako dobro samo sumnjam da ce neko po difoltu ic srcat na taj nacin...

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njava
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PostPosted: 06.11.2003 20:51    Post subject: Add user to your forum ignore list Reply with quote

mogu.

prvo malo backgrounda

search sintaksa ide otprilike
SELECT
kolone,
match(fulltext_kolone) against ('search_string') as score
FROM
tablice
WHERE
match(fulltext_kolone) against ('search_string_boolean' IN BOOLEAN MODE)
ORDER BY
score DESC

- search_string je ono kaj si upisao
- search_string_boolean je ono kaj si napisao + svaka rijec ima nakeljen * na kraju (da bi iskoristili wildcard matching koje je u boolean searchu moguc)
- matchanje u boolean modu daje prilicno lose scoreove/relevancies (vecina rezultata dobije score = 1), tako da orderanje ispada bezveze pa orderamo po normalnom fulltext match resultu

e sad, zasto bez navodnika daje puno rezultata. zato sto tocku shvati kao non word character, zbog toga razlomi upit i javlja da je nasao rezultat ukoliko on sadrzi bilo koji od dijelova upita (www, ., group94, com)

sa duplim navodnicima mu grupiras upit u frazu i onda ne moze razlomit na dijelove.
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mi3.crew


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PostPosted: 07.11.2003 00:21    Post subject: Add user to your forum ignore list Reply with quote

njava wrote:
mogu.
e sad, zasto bez navodnika daje puno rezultata. zato sto tocku shvati kao non word character, zbog toga razlomi upit i javlja da je nasao rezultat ukoliko on sadrzi bilo koji od dijelova upita (www, ., group94, com)
sa duplim navodnicima mu grupiras upit u frazu i onda ne moze razlomit na dijelove.


fala :)
evo onda prijedlog - stavljanje checkboxa u stilu "trazi tocno to sta hoces i samo to"

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