Search Relevance, Ranking & Multi-Stage Fusion
BM25 scoring, dense vector embeddings, Reciprocal Rank Fusion (RRF), cross-encoder rerankers, and merchandiser boost/bury multipliers.
Technical Guides & Implementations (14)
Chronological engineering referencesMultilingual NLP in Coveo: Language Detection, Decompounding, Stemming, and Cross-Lingual Semantic Search
Deep dive into Coveo's multilingual search engine: character n-gram language detection, compound-word splitting in German, Kuromoji tokenization in Japanese, lo…
Mastering Coveo Relevance: Automatic Relevance Tuning (ART), Dynamic Navigation (DNE), and Smart Snippets
How Coveo achieves autonomous search relevance: the closed-loop Usage Analytics feedback cycle, collaborative filtering with ART, dynamic facet reordering with …
Inside Coveo Query Pipelines (QPL): Request Lifecycle, Context Routing, and Machine Learning Injection
An in-depth architectural breakdown of Coveo Query Pipelines (QPL): how search tokens, context JSON, Thesaurus rules, query ranking expressions (QRE), and ML mo…
Endeca Experience Manager Rule - What happens when Auto correction happened for search term?
Spelling Correction operates by computing alternate spellings for user query terms, evaluating the likelihood that these alternate spellings are the best interp…
Endeca Search : How to allow users to search within previous search results(Search Within)?
The search within function enables end users to find specific information within an previous search results. Where search within can be used Users prefer or exp…
How to import specific set of rules/content to Endeca Experience manager?
Oracle Endeca 11.1 onward support to import specific content item to Endeca Experience manager via calling ECR repository. This features enable to import conten…
Endeca Basics : does Stemming change relevance ranking score?
Stemming feature allows expanding the search results from singular to plural and vice versa. Suppose, search term is "shoe", this gives the result for "shoe" an…
Endeca Basics : How to Add/Delete word from stemming dictionary??
Oracle Endeca provides a dictionary for stemming for all languages. This dictionary is part of MDEX engine installation. Dictionary can be found under \MDEX\<…
Endeca Basics : How to Disable Endeca Rule Manager trigger for Stemming?
Stemming enables keyword search results to provide results for both singular and plural words. Stemming and spelling correction both triggers Endeca Rules in Ex…
Endeca Basics : What is Stemming?
The Stemming feature expands search results to include root words and variants of root words.Stemming enables words with a common root (such as the singular and…
Oracle Endeca - how to use snippeting in Record Searches??
Definition :- The snippeting feature (also referred to as keyword in context or KWIC) provides the ability to return an extract from a record—called a snippet—t…
Oracle Endeca x.x - Search query processing order in MDEX
This section summarizes how the MDEX Engine processes record search queries. The process outlined here assumes that other features (such as spelling correction …
Endeca all versions : Special character in search term
Endeca uses only alphanumeric characters to be searchable by default as part of Endeca search query. Behavior: If any search term contains any special character…
Relevance Ranking Modules in Endeca
Relevance Ranking controls the order in which search results are displayed to the end user . You configure the Relevance Ranking feature to display the most imp…