「大数据可视化理论与案例分析」| 青训营笔记

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这是我参与「第四届青训营」笔记创作活动的的第15天

01.定义

什么是可视化/ What is Visualization

Visualization is any technique for creating images, diagrams, or animations to communicate a message.

什么是数据可视化/What is Data Visualization

Anything that converts data into a visual representation (like charts, graphs, maps, sometimes even just tables)

数据可视化作用/The Role of Data Visualization

A picture is worth a thousand words

Explore the truth of the data

Promote communication and exchange(沟通媒介)

02.原理

1.Abstract Data 2.Visualization Design 3.Rendering and Display 4.Interactivity

定义/Definition

Data is defined as a collection of meaningful facts which can be stored and processed by computers or humans. 数据被定义为一组有意义的事实,可以由计算机或人存储和处理。

数据和数据集/Data and Dataset

image-20220820112336036

表格/Tables

多维表格/Multidimensional Table

image-20220820112500955

网络图和树图/Networks or Trees

场/Fields

几何数据/Geometry Spatial

属性分类/Attribute Types

认知/Cognition

  1. Perception of raw visual signals, e.g. color,shape, etc.
  2. Pattern recognition
  3. Reasoning and Analysis

图元/Marks

通道/Channels

编码/Encode

编码有效性/Effectiveness

You must consider a continuum of potential interactions between channels for each pair, ranging from the orthogonal and independent separable channels to the inextricably combined integral channels.