1. Understanding the Data - [ADsP]
(1) Definition of Data
- objective facts
- pure number, symbols
1. Data Type
- Qualitative Data : numbers, shapes, symbols
- Quantitaive Data : language, characters
2. Tacit and Explicit Knowledge
- Tacit Knowledge : difficult to express or extract
- Explicit Knowledge : expressive knowledge
3. Interaction of Tacit and Explicit Knowledge
- Socialization
- Externalization
- Combination
- Internalization
(2) Relationship of Data and Information
By Longlivetheux - Own work, CC BY-SA 4.0, Link
1. Data
- objective facts
- pure number, symbols
2. Information
- Data Processing
3. Knowledge
- Predictions
4. Wisdom
- creative ideas
(3) Data De-identification
1. Definition
- process used to prevent someone’s personal identity from being revealed.
2. Techniques
Pseudonymization
replacing real names with a temporary ID.
Aggregation
the process where raw data is gathered and expressed in a summary form for statistical analysis.
Data Reduction
the process in which an organization sets out to limit the amount of data it’s storing.
Data suppression
a disclosure avoidance method that is used to protect the identities, privacy, and personal information of individuals.
Data Masking
the process of hiding data by modifying its original letters and numbers.
source : IBM, cloudflare, Wikipedia, AWS