Search Against Series Of Fields - Solr - search

Lets consider a product catalog with fields Category, Brand, BrandAndCategory And default search field.
If i search for "dell laptops" at first solr should search against Category field, if no results are found then against Brand field and then BrandAndCategory field and finally against the default search field.Right now i am making four different calls one by one to the solr from my Java Code to achieve this.It might affect the performance eventually.Is there any other way to achieve this from solr itself?.
Please help me on this issue.Thanks in Advance.

I believe you can use the DisMaxQueryParser for this.

If getting the best results at the top is enough and lower priority results towards the bottom of the result set are acceptable, then something like this may work for you:
q=dell laptops&qf=Category^100 Brand^50 BrandAndCategory^10 Default

Related

Honoring previous searches in the next search result in solr

I am using solr for searching. I wants to improve my search result quality based on previously searched terms. Suppose, I have two products in my index with names 'Jewelry Crystal'(say it belongs to Group 1) & 'Compound Crystal'(say it belongs to Group 2). Now, if we query for 'Crystal', then both the products will come.
Let say, if I had previously searched for 'Jewelry Ornament', then I searches for 'Crystal', then I expects that only one result ('Jewelry Crystal') should come. There is no point of showing 'Compound Crystal' product to any person looking for jewelry type product.
Is there any way in SOLR to honour this kind of behavior or is there any other method to achieve this.
First of all, there's nothing built-in in Solr to achive this. What you need for this is some kind of user session, which is not supported by Solr, or a client side storage like a cookie or something for the preceding query.
But to achive the upvote you can use a runtime Boost Query.
Assuming you're using the edismax QueryParser, you can add the following to your Solr query:
q=Crystal&boost=bq:(Jewelry Ornament)
See http://wiki.apache.org/solr/ExtendedDisMax#bq_.28Boost_Query.29

Is there a way to limit a search by categoryId in the explore api?

I can limit by specifying "categoryId" parameter in the /search api, but what about /explore? The "query" parameter says it also searches categories but it's picking up tips too. Completely unrelated venues show up in the results just because someone mentions part of the category name in a tip.
I can just remove results that don't match the category but I'd like for there to be another way.
The reason I want to use /explore is so I can get the rating and price, as well as a sample photo.
You can use categoryId parameter with explore. It's undocumented.
With explore, the closest approximation to a categoryId filter will be using the section parameter. As per our search docs, explore and search serve different purposes, and the section param fits explore much better.
If you want to filter by categoryId yet still want photos and rating, I recommend calling venues/search then conducting a second venue details call to get that info.

Alternative methods to search, without using FT Search

I am currently using the 'search in view results' option in the view control to provide the data set for my view (the reason for this is that the data set to be displayed is fairly complex depending on the user - and I was not able to accomplish this using vector filtering).
The problem I have with it, is that the search is a FT search, and that it does not let you search where a field is an exact match on a string, but rather it does a search where the field contains your string.
Does anyone know of an method where I can search the view for exact data?
Thanks in advance.
A
If your database is not too big you could use a database.search. It uses an #Formula to get the documents. It might be by a magnitude slower than FT Search
Take a look at this code http://openntf.org/XSnippets.nsf/snippet.xsp?id=build-a-search-query I think it could help you do what you are looking for.
Based on what you want to do, a better option is to create a hidden view with the columns you need to match on. Then search on that view rather then an FTI search.

Invalid Magento Search result

Searching Magento with fulltext search engine and like method , it will store results in catalogsearch_fulltext table in "data_index" field where it stores value in the format like
each searchable attribute is separated with |.
e.g
3003|Enabled|None||Product name|1.99|yellow|0
here it store sku,status,tax class, product name , price ,color etc etc
It stores all searchable attribute value.
Now the issue is for Configurable product , it will also store the associated products name ,price ,status in the same field like
3003|Enabled|Enabled|Enabled|Enabled|None|None|None|None|Product name|Product name|associted Product name1|associted Product name2|associted Product name3|1.99|2.00|2.99|3.99|yellow|black|yellow|green|0|0|0|0
So what happen is if i search for any word from associated product, it will also list the main configurable product as it has the word in its "data_index" field.
Need some suggestion how can i avoid associated products being included in data_index, So that i can have perfect search result.
thanks
We are looking into our search as well and it has been surprising to see the inefficiencies included in the fulltext table. We have some configurable products as well that have MANY variations and their population in the fulltext search is downright horrendous.
As for solutions, I can only offer my approach to fix the problem (not completed: but rather in the process).
I am extending Magento to include an event listener to the process of indexing the products (Because catalog search indexing is when the fulltext database is populated). Once that process occurs, I am writing my own module to remove duplicate entries from the associated products and also to add the functionality of adding additional search keyword terms as populated from a CSV file.
This should effectively increase search speed dramatically and also return more relevent search results. Because as of now, configurable products are getting "search bias" in the search results.
This isn't so much of an answer as a comment, but it was too lengthy to fit in the comments but I thought this might be beneficial to you. Once I get my module working, if you would like, I can possibly give you directions on how you could implement a similar module yourself.
Hope that helped (if only for moral support in magento's search struggle)

How to implement faceted search suggestion with number of relevant items in Solr?

Hi
I have a very specific need in my company for the system's search engine, and I can't seem to find a solution.
We have a SOLR index of items, all of them have the same fields, with one of the fields being "Type", (And ofcourse, "Title", "Text", and so on).
What I need is: I get an Item Type and a Query String, and I need to return a list of search suggestion with each also saying how meny items of the correct type will that suggested string return.
Something like, if the original string is "goo" I'll get
Goo 10
Google 52
Goolag 2
and so on.
now, How do I do it?
I don't want to re-query SOLR for each different suggestion, but if there is no other way, I just might.
Thanks in advance
you can try edge n-gram tokenization
http://search.lucidimagination.com/search/document/CDRG_ch05_5.5.6
You can try facets. Take a look at my more detailed description ('Autocompletion').
This was implemented at http://jetwick.com with Solr ... now using ElasticSearch but the Solr sources are still available and the idea is also the identical https://github.com/karussell/Jetwick
The SpellCheckComponent of Solr (that gives the suggestions) have extended results that can give the frequency of every suggestion in the index - http://wiki.apache.org/solr/SpellCheckComponent#Extended_Results.
However, the .Net component SolrNet, does not currently seem to support the extendedResults option: "All of the SpellCheckComponent parameters are supported, except for the extendedResults option" - http://code.google.com/p/solrnet/wiki/SpellChecking.
This is implemented using a facet field query with a Prefix set. You can test this using the xml handler like this:
http://localhost:8983/solr/select/?rows=0&facet=true&facet.field=type&f.type.prefix=goo

Resources