elasticsearch

Expat.com, worldwide network

Implementing Search for a worldwide social network

Expat.com is the benchmark platform for people living abroad. He plays a large role:  Help futur expats to prepare to settle in their host country; Help expats to handle their daily problems; Allow members to build networks, both professional and personal in their new place of life; Provide content on their new area of residence and on life abroad in general (expatriation guides, magazine dedicated to expatriation); Recommend service providers adapted to the needs of those living abroad, list the…

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Expat.com, Réseau social des expatriés

Implementation d’Elasticsearch dans un réseau social mondial

Expat.com est la plateforme de référence de la vie à l’étranger. Son rôle est multiple :  Aider les futurs expats à préparer leur installation dans leur pays d’accueil ; Aider les expats dans leurs problèmes du quotidien ; Permettre aux membres de se constituer un réseau, tant professionnel que personnel dans leur nouveau lieu de vie ; Apporter du contenu sur leur nouvelle zone de résidence et sur la vie à l’étranger en général (guides de l’expatrié, magazine dédié à…

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centralized work with elastic search search template

Elasticsearch’s Search Templates: Industrialisation of Elasticsearch queries

Elasticsearch has a lot of small unknown game changing features.  Search templates are one of those. When it suits your use case, it changes a lot your integration quality  TL:DR  Elasticsearch’s Search Template are interesting for :  Simplify integration Give a standard access to your indices without having to create any microservice Separation of concerns Avoid code duplication What is a Search Template?  Search templates are reusable scripts that handle the query complexity and let integrator use very complicated queries…

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Scoring in Elasticsearch

Multi Match Query with elasticsearch – Influence scoring – part 3

As we saw in part 1, we can use boolean queries to influence scoring and boost the relevance of your searches. But it soon becomes very verbose and some kind of queries can be quite complicated to write. Multi-match comes to help you write more concise search Queries.  TL:DR Terms can be reused to “boost” better results – in part 1 Filter can be used to scope a query without influencing the score – in part 1 Mix Must/Should/Filter in one Elasticsearch…

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Boost your fields for better relevance with Elaticsearch

Boost field weight in Elasticsearch – Influence Elasticsearch Scoring – Part 2

In the previous articles about scoring, and boolean queries Spoon Consulting saw how the scoring of Elasticsearch works by default and how to tweak your query to influence it.  In the article below, we will study how we can add different weights to different fields, and the different “boost” behaviors.  TL:DR Terms can be reused to “boost” better results – in part 1 Filter can be used to scope a query without influencing the score – in part 1 Mix…

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Meaning of relevance

Boolean query with elasticsearch – Influence Elasticsearch Scoring – Part 1

In the previous article about scoring, Spoon Consulting saw how the scoring of Elasticsearch works by default.  Now let’s see how you can leverage your results to map your use cases.  TL:DR Terms can be reused to “boost” better results – in part 1 Filter can be used to scope a query without influencing the score – in part 1 Mix Must/Should/Filter in one Elasticsearch boolean query give a lot of flexibility – in part 1 Boosts give weight on…

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Paginate aggregation with Elasticsearch

Paginating term aggregation

In Elasticsearch, paginating aggregations results is a recurring need.By default, Elastic will send all results in your aggregation. If a query filter is often enough, it’s not always the wanted behavior.  First possibility, increase a lot the size parameter and do the pagination on front side.It can be a good solution… for few hundred results, and a low cardinality.  But if we don’t want to crash our app, we probably can do better.  Depending on your specific use case you will…

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More like this on ebay

More Like This query (MLT) – Suggest similar content with Elasticsearch

TL:DR With the More Like This query, Elasticsearch gives an easy and powerful way to find contents similar to what your users are currently watching.  It’s a key point to improve your retention, and your ROI  More Like This Query : Suggest related content Any company that edits a website, or any content centred tool has one only goal: Improve Transformation.It can be a contact form, a newsletter subscription, an online purchase, a click on an advert or simply finding…

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