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You're reading from  Advanced Elasticsearch 7.0

Product typeBook
Published inAug 2019
Reading LevelBeginner
PublisherPackt
ISBN-139781789957754
Edition1st Edition
Languages
Java
Tools
Elasticsearch
Concepts
Enterprise Search
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Author (1)
Wai Tak Wong
Wai Tak Wong
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Wai Tak Wong

Wai Tak Wong is a faculty member in the Department of Computer Science at Kean University, NJ, USA. He has more than 15 years professional experience in cloud software design and development. His PhD in computer science was obtained at NJIT, NJ, USA. Wai Tak has served as an associate professor in the Information Management Department of Chung Hua University, Taiwan. A co-founder of Shanghai Shellshellfish Information Technology, Wai Tak acted as the Chief Scientist of the R&D team, and he has published more than a dozen algorithms in prestigious journals and conferences. Wai Tak began his search and analytics technology career with Elasticsearch in the real estate market and later applied this to data management and FinTech data services.
Read more about Wai Tak Wong

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Other search-related APIs

Elasticsearch supports a few search-related APIs to provide information to troubleshoot search issues. It can help you in preparing the complex search query to obtain more precise search results.

The _explain API

Similar to the explain parameter in the request body search, this _explain API tells you how to calculate the score of matching for a particular document. It provides you with useful feedback when looking for related issues and finding the reason why a given document can be found. The following screenshot provides an explanation as to why the GgOJ7msB3gfI-VGlT4dA document identifier satisfies the query:

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Advanced Elasticsearch 7.0
Published in: Aug 2019Publisher: PacktISBN-13: 9781789957754
© 2019 Packt Publishing Limited All Rights Reserved

Author (1)

author image
Wai Tak Wong

Wai Tak Wong is a faculty member in the Department of Computer Science at Kean University, NJ, USA. He has more than 15 years professional experience in cloud software design and development. His PhD in computer science was obtained at NJIT, NJ, USA. Wai Tak has served as an associate professor in the Information Management Department of Chung Hua University, Taiwan. A co-founder of Shanghai Shellshellfish Information Technology, Wai Tak acted as the Chief Scientist of the R&D team, and he has published more than a dozen algorithms in prestigious journals and conferences. Wai Tak began his search and analytics technology career with Elasticsearch in the real estate market and later applied this to data management and FinTech data services.
Read more about Wai Tak Wong

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