The general concept of business analytics is to measure past business performance by using a combination of skills, methods, and techniques to gain insight into decisions when planning for the future of the business. Elasticsearch can provide data-driven insights to help solve problems and improve efficiency. Let's take an example to investigate closing-price changes by using the Morningstar category of commission-free ETF. Recall that, in the documentation of the cf_etf_hist_price index, introduced in Chapter 8, Aggregations Framework, has only a symbol field. There is no way to group the documents into such a category using only the cf_etf_hist_price index unless we manually attach the Morningstar_category field during the indexing operation. Of course, this can be solved programmatically. However, we will solve it by using only Elasticsearch with the...
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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.
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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