Computer & Data Science

1. Data Storage

1.1. Druid

1.2. SQL

1.3. NoSQL

1.3.1. Redis

1.3.2. Cassandra

1.3.3. Elastic Search

1.3.3.1. Index

1.3.3.2. Filter/Query

1.3.3.3. Aggregation

1.3.3.3.1. ReveserNested

1.3.3.3.2. Nested

2. Algorithm

2.1. Search

2.1.1. Alpha/Beta Search

2.2. Sort

2.2.1. Bubble Sort

2.2.2. Insertion Sort

2.2.3. Merge Sort

3. Programming

3.1. Java

3.1.1. Basic

3.1.2. Networking

3.1.3. ThreadPool

3.2. Framework

3.2.1. Serverside

3.2.1.1. Netty

3.2.1.2. Spring

3.2.2. Message Queue

3.2.2.1. Kafka

4. Data Structures

4.1. Data Sketch