Category Archives: Solr

Elastic Search or Solr Search Result Quality Evaluation with NCDG Metric on Spark

Posted on April 24, 2019 by Pranab

You have built an enterprise search engine with Elastic Search or Solr. You have tweaked all the knobs in the search engine to get the best possible quality for the search results. But how do you know how well your … Continue reading →

Posted in Big Data, Data Science, elastic search, Log Analysis, Scala, Search Analytic, Solr, Spark | Tagged , , , | Leave a comment

Improving Elastic Search Query Result with Query Expansion using Topic Modeling

Posted on July 18, 2018 by Pranab

Query expansion is a process of reformulating a query to improve query results and to be more specific to improve the recall for a query. Topic modeling is an Natural Language Processing (NLP) technique to discover hidden topics or concepts … Continue reading →

Posted in elastic search, NLP, Python, Solr, Text Analytic, Text Mining, Topic Modeling | Tagged , , , | 1 Comment