I am new in Lucy and looking for fast and elegant, search solutions that are
able to:
- return an excerpt, HTML highlighted, around the MASTER_KEY_WORD
- MASTER_KEY_WORD could be matched partial or not
- must be possible define the size of excerpt (before and after the
MASTER_KEY_WORD, maybe in terms of number of words or lines)
- optional keywords, called INC_KEY_WORD, must be present, inside the excerpt,
no matter the order
- optional keywords, called EXC_KEY_WORD, must not be present, inside the
excerpt, no matter the order
- combinations of INC_KEY_WORD and EXC_KEY_WORD are possible
Example:
apple (partial) -> MASTER_KEY_WORD
+ (bag + blue, girl) -> INC_KEY_WORD combo
- (black+ man, orange) -> EXC_KEY_WORD combo
must return excerpts that the string 'apple' exists (apple, apples, applebees,
...)
and ('bag' AND 'blue') or 'girl'
but not ('black' AND 'man') or 'orange' surrounding the master keyword 'apple'
Today we are using Postgres queries and some Perl code to do that in millions
of docs. We have a good performance, for now.
Is it possible to build such algorithm using Lucy? Fast an easy, in one step?
Or maybe Lucy will be used just to retrieve the excerpt surroundig the master
key word with subsequent Perl code to apply the rest?
thanks,
odisseu21
-----------------------------
"...Sed ut perspiciatis unde omnis iste natus error **EXC_KEY_WORD1**
voluptatem accusantium doloremque laudantium,
totam rem aperiam, eaque **INC_KEY_WORD3** quae ab illo inventore EXC_KEY_WORD2
et quasi architecto beatae vitae dicta
sunt explicabo. Nemo enim ipsam voluptatem quia voluptas sit aspernatur aut
odit aut fugit,
sed quia **INC_KEY_WORD2** magni **MASTER_KEY_WORD** eos qui **INC_KEY_WORD1**
voluptatem sequi nesciunt.
Neque porro quisquam est, qui dolorem ipsum quia dolor sit **EXC_KEY_WORD3**,
consectetur, adipisci velit,
sed quia non numquam eius modi tempora incidunt ut labore et dolore magnam
aliquam quaerat voluptatem..."
