What are you getting for the scores? If it's NaN I think you'll need
to use a TopFieldCollector. See for example
http://www.gossamer-threads.com/lists/lucene/java-user/86309
--
Ian.
On Tue, Nov 27, 2012 at 3:51 AM, Andy Yu ukour...@gmail.com wrote:
Hi All,
Now I want to sort by a field
On Tue, Nov 27, 2012 at 9:31 AM, Robert Muir rcm...@gmail.com wrote:
On Thu, Nov 22, 2012 at 11:10 PM, Trejkaz trej...@trypticon.org wrote:
As for actually doing the invalidation, CachingWrapperFilter itself
doesn't appear to have any mechanism for invalidation at all, so I
imagine I will be
On Tue, Nov 27, 2012 at 6:17 AM, Trejkaz trej...@trypticon.org wrote:
Ah, yeah... I should have been clearer on what I meant there.
If you want to make a filter which relies on data that isn't in the
index, there is no mechanism for invalidation. One example of it is if
you have a filter
Hello all,
can someone point me to info or docs on how a lucene search is conducted?
i would like to have a better understanding of how this works in general -
but also from a design perspective.
for instance - a question that keeps coming up is, should we add content to
a given core - or break
I think we're looking at doing something related. I haven't explored the
Enums or know how to make a postings codec... But what is flexible
indexing in Lucene 4.0 if it's not the ability to make new postings codecs?
We're trying to incorporate attributes onto terms/spans in indexes. We'd
also
http://lucene.apache.org/core/4_0_0/core/org/apache/lucene/search/package-summary.html#package_description
might help. Or Google something like how does lucene work.
The question on cores might be better asked on the solr list, assuming
you are talking about Solr cores. But I bet the answer
hello,
thanks for the info.
as you suggested - i did do a general search and found this slide
presentation - which had some good general info. i am not sure what the
source of this preso, how qualified the author (although he/she seems very
good) or how current the information is?
Ian Lea wrote
The question on cores might be better asked on the solr list, assuming
you are talking about Solr cores. But I bet the answer will be a
variant on either it depends or, my favourite, whatever works for
you.
yes - i am referring to solr cores.
i was hoping to find a more
http://wiki.apache.org/lucene-java/LucenePapers
Many people have come to this list asking the same question,including
myself.
Most answers are practical ones.
But lucene has so many interesting ideas in it, which triggers everyones
academic curiosity, without caring for the results.
Hi,
We use payloads but we can't use the whole lucene API.
For example we use it to do some relation query for example :
@quote(@speaker(obama) @discourse(health))
Search for all documents that contains a quote by Obama talking about
health.
We encode linguistic informations (standoff
The proper answer to all of these questions is the same and very simple: If
you want internal details, read the source code first. If you have
specific questions then, fine, ask specific questions - but only after
you've checked the code first.
Also, questions or issues related to internals
Call the IndexSearch#explain method to get the technical details on how any
query is scored. Call Explanation#toString to get the English description
for the scoring.
Or, using Solr, add the debugQuery=true parameter to your query request and
look at the explain section for scoring
As you can tell from the title, Lucene In Action is more about using
lucene than how it works internally, but yes, it is good and is worth
buying. If you're worried about how up to date it is, keep a copy of
the release notes and migration guides for later versions to hand.
--
Ian.
On Tue,
Following up on a previous question...
What is flexible indexing in Lucene 4.0? We assumed it was the ability to
easily make new postings formats/codecs -- but a response below says that
would be tricky?
stephen
On 11/27/12 11:48 AM, David Causse dcau...@spotter.com wrote:
Hi,
We use
Flexible indexing is the ability to make your own codec, which
controls the reading and writing of all index parts (postings, stored
fields, term vectors, deleted docs, etc.).
So for example if you want to store some postings as a bit set instead
of the block format that's the default coming up
Hello,
as posted some time ago I'm working on a native, versioned XML-DBMS [1].
I'd like to provide a full text index and I recently read about
customized Codecs which can be plugged in. Usually data (for instance
XML nodes) are stored on RecordPages. I'm still not sure if it is
possible and
On Wed, Nov 28, 2012 at 2:09 AM, Robert Muir rcm...@gmail.com wrote:
I don't understand how a filter could become invalid even though the reader
has not changed.
I did state two ways in my last email, but just to re-iterate:
(1): The filter reflects a query constructed from lines in a text
On Wed, Nov 28, 2012 at 12:27 AM, Trejkaz trej...@trypticon.org wrote:
On Wed, Nov 28, 2012 at 2:09 AM, Robert Muir rcm...@gmail.com wrote:
I don't understand how a filter could become invalid even though the
reader
has not changed.
I did state two ways in my last email, but just to
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