Chen Riang's Blog

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Search with phonetic analysis plugin

Elasticsearch version : 7.7 In this article, we will look into how we search a keyword that has similar pronouncation (e.g. “write” and “right”) via Phonetic Analysis plugin in Elasticsearch. Che...

Posted by ChenRiang on May 26, 2020

Install plugin on Elasticsearch container

Elasticsearch version : 7.7 In this article, we will be using docker-compose to create a container with plugin pre-installed. Core Plugin Plugins that maintained by Elasticsearch team. List of pl...

Posted by ChenRiang on May 20, 2020

F1 Score = Dice Coefficient

F1 score is equivalent to Dice Coefficient(Sørensen–Dice Coefficient). In the section below, we will prove it with an example. F1 Score Definition : Harmonic mean of the test’s precision and ...

Posted by ChenRiang on May 5, 2020

Flink consumer and Kafka partition

Setting the parallelism and partition right

Something interesting found when running Flink job that consumes Kafka stream data as a source. No matter how much parallelism set there is always 1 task manager consuming data from Kafka. ...

Posted by ChenRiang on May 3, 2020

Template

"Hello World, Hello Blog"

Just an ordinary template

Posted by ChenRiang on May 1, 2020