Re: Negation search help

2021-04-28 Thread Michael Wechner
Hi Amitesh Thanks for the more concrete examples. Unfortunately I do not know how to solve this better with Lucene itself in a more general context, but did you ever consider using BERT in combination with Lucene/Solr https://blog.google/products/search/search-language-understanding-bert/

Re: Taxonomy vs SSDVFF for faceted search

2021-04-28 Thread Alexander Lukyanchikov
Hi Matt, It's very interesting, thanks for the response! Did you have any issues with Taxonomy indexing performance, or maybe tried to optimize it somehow? Also, any problems maintaining a sidecar index or experience building a distributed system around it with sharding/rebalancing? -- Regards,

Re: Negation search help

2021-04-28 Thread amitesh116
Hi Gus, Thank you your reply! In my search system; users are complaining that they get results with negation terms when don't expect. As explained in my original post. User don't want to get documents having a term like "Non Vitamin K" when they search for "Vitamin K". But because each terms

Re: Negation search help

2021-04-28 Thread Gus Heck
Besides the possible statistical significance of your phrasing there are a number of other things you can do to improve your chances of getting good answers: http://www.catb.org/~esr/faqs/smart-questions.html On Wed, Apr 28, 2021 at 3:53 PM Michael Wechner wrote: > Hi Amitesh > > I don't have

Re: Lucene 8 causing app server threads to hang due to high rate of network usage

2021-04-28 Thread ANDREI SOLODIN
Hello, I am also keenly interested in Lucene performance on NFS/EFS. I have an extensive experience with a another (proprietory) search engine successfully using NFS for indexing/search. In our case, the key has always been making sure that a large portion of the index is in the host page

Re: Negation search help

2021-04-28 Thread Michael Wechner
Hi Amitesh I don't have statistical proof , but I think it doesn't help on mailing lists with volunteeers to write "I badly need some help", because it seems to me the contrary will happen, that people will not help at all. I think there are various reasons for this behaviour, which is

Re: Taxonomy vs SSDVFF for faceted search

2021-04-28 Thread Matt Davis
Alex, With our lucene based implementation of Zulia ( https://github.com/zuliaio/zuliasearch) we have went back and forth. We started with Taxonomy and switched and then switched back to taxonomy. In our experience the Taxonomy based approach is more scalable and performant. We do large

Taxonomy vs SSDVFF for faceted search

2021-04-28 Thread Alexander Lukyanchikov
Hello everyone, We are trying to choose between Taxonomy and SortedSetDocValuesFacetField implementations for faceted search, and based on available information and our quick tests, the difference is the following - - Taxonomy is faster at query time (on our test workload, the difference

Re: Negation search help

2021-04-28 Thread amitesh116
I badly need some help on this one. Someone please give some direction. Regards Amitesh -- Sent from: https://lucene.472066.n3.nabble.com/Lucene-Java-Users-f532864.html - To unsubscribe, e-mail:

Re: Lucene 8 causing app server threads to hang due to high rate of network usage

2021-04-28 Thread Robert Muir
Don't use filesystems such as NFS (that is what EFS is) with lucene! This is really bad design, and it is the root cause of your issue. On Tue, Apr 27, 2021 at 1:21 PM Hilston, Kathleen < kathleen.hils...@snapon.com> wrote: > Hello, > > > > My name is Kathleen Hilston, and I am a Software