On Wed, Nov 28, 2012 at 12:27 AM, Trejkaz wrote:
> On Wed, Nov 28, 2012 at 2:09 AM, Robert Muir 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
On Wed, Nov 28, 2012 at 2:09 AM, Robert Muir 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
file. If some ot
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
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 in
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" wrote:
> Hi,
>
> We use payloads but we
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, Nov
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 calculat
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
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 annotati
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.
2012/11/2
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 m
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?
http://www.sl
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 wi
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
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
On Tue, Nov 27, 2012 at 6:17 AM, Trejkaz 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 which essentially
On Tue, Nov 27, 2012 at 9:31 AM, Robert Muir wrote:
> On Thu, Nov 22, 2012 at 11:10 PM, Trejkaz 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 building a variation of it
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 wrote:
> Hi All,
>
>
> Now I want to sort by a field and the relevan
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