Is Printing Money is a Valid Response to the Coronavirus Crisis?
Corona Virus silently crawled into nearly every street of the world. Till date, i.e. May 8, 2020, it has infected millions, killed thousands, murdered economies, baffled scientists, traumatized health care professionals, and in the process has infused endless fear amongst the masses. The biggest impact …
Opportunities for Greater Use of AI and Blockchain in Smart Cities
The reality we live in today is largely influenced by revolutionary innovations that have increasingly disrupted our current ways of doing businesses. It is interesting to know how policymakers, governments, and businesses can leverage the potential of disruptive technologies and unlock the doors to a …
Spell Checking – Ultimate Solr Guide
The SpellCheck component is designed to provide inline query suggestions based on other, similar, terms. The basis for these suggestions can be terms in a field in Solr, externally created text files, or fields in other Lucene indexes. Configuring the SpellCheckComponent Define Spell Check in …
MoreLikeThis – Ultimate Solr Guide
The MoreLikeThis search component enables users to query for documents similar to a document in their result list. It does this by using terms from the original document to find similar documents in the index. There are three ways to use MoreLikeThis. The first, and most common, …
Transforming Result Documents – Ultimate Solr Guide
Document Transformers modify the information returned about documents in the results of a query. Using Document Transformers When executing a request, a document transformer can be used by including it in the fl parameter using square brackets, for example: fl=id,name,score,[shard] Some transformers allow, or require, local parameters …
Learning To Rank – Ultimate Solr Guide
With the Learning To Rank (or LTR for short) contrib module you can configure and run machine learned ranking models in Solr. The module also supports feature extraction inside Solr. The only thing you need to do outside Solr is train your own ranking model. Learning to Rank Concepts …
Query Re-Ranking – Ultimate Solr Guide
Query Re-Ranking allows you to run a simple query (A) for matching documents and then re-rank the top N documents using the scores from a more complex query (B). Since the more costly ranking from query B is only applied to the top N documents, it will …
The Extended DisMax (eDismax) Query Parser – Ultimate Solr Guide
The Extended DisMax (eDisMax) query parser is an improved version of the DisMax query parser. In addition to supporting all the DisMax query parser parameters, Extended Dismax: supports Solr’s standard query parser syntax such as (non-exhaustive list): boolean operators such as AND (+, &&), OR (||), NOT (-). …