Bryan's Reflective Path
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Semantic Layer with Unified Star Schema
A novel idea completes the generated star schema.
Aug 12
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Bryan Tsai
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Semantic Layer with Unified Star Schema
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January 2024
Optimize Data Lake Layout to Support Multiple Ordering
There is a way for a data lake to be physically clustered and sorted by multiple columns at the same time.
Jan 29
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Bryan Tsai
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Optimize Data Lake Layout to Support Multiple Ordering
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Your Timezone or My Timezone?
We gotta choose one. Which one are you going to choose?
Jan 21
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Bryan Tsai
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Your Timezone or My Timezone?
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Dealing with Late-Arriving Data in Data Vault
There is always some late-arriving data. How do we deal with it in Data Vault?
Jan 5
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Bryan Tsai
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Dealing with Late-Arriving Data in Data Vault
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December 2023
Maintaining Two Timelines with Data Vault
In business architecture, there are at least two views: the real-world view and our system’s view.
Dec 5, 2023
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Bryan Tsai
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Maintaining Two Timelines with Data Vault
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November 2023
Generating Star Schemas from Data Vault
Our RootCloud Platform provides an easy way for users to construct their enterprise data vault to generate dimensional star schemas…
Nov 24, 2023
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Bryan Tsai
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Generating Star Schemas from Data Vault
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May 2017
Serverless Feed Aggregator
With Serverless Framework, OpenWhisk, and Cloudant
May 25, 2017
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Bryan Tsai
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Serverless Feed Aggregator
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Serverless IoT Analytics with OpenWhisk Part 3 — How to keep state?
This is the third part of a series.
May 10, 2017
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Bryan Tsai
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Serverless IoT Analytics with OpenWhisk Part 3 — How to keep state?
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April 2017
Serverless IoT Analytics with OpenWhisk Part 2 — How to structure functions?
This is the second part of a series.
Apr 26, 2017
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Bryan Tsai
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Serverless IoT Analytics with OpenWhisk Part 2 — How to structure functions?
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Serverless IoT Analytics with OpenWhisk Part 1 — Is It Slower?
As I explored the serverless world (the FaaS area), I always wondered how it compared to the “normal” way. Would it slow things down? Is it…
Apr 19, 2017
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Bryan Tsai
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Serverless IoT Analytics with OpenWhisk Part 1 — Is It Slower?
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How to Trigger OpenWhisk Actions from Watson IoT Analytics
Watson IoT Analytics rule triggering supports several action types: email, webhook, Node-RED, and IFTTT. In most cases, these actions allow…
Apr 7, 2017
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Bryan Tsai
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How to Trigger OpenWhisk Actions from Watson IoT Analytics
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How to resolve dependency conflict out of your control
My project uses Apache Twill and Cassandra Java Driver. Twill uses Guava 13.0.1 while Cassandra Java Driver uses Guava 16.0.1. Even worse…
Apr 5, 2017
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Bryan Tsai
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How to resolve dependency conflict out of your control
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