1. What are the basic data visualization features have?
(1) understandability, visualization can make the data fragmented into knowledge with a specific structure, in order to assist decision-making support.
The amount of data (2) Necessity, large data generated inevitably requires people summarized the data, the structure and form of data conversion processing.
(3) one-sided, one-sided data visualization features required visual mode data itself is not replaced, only as a particular form of expression of data.
(4) professional, specialized extraction feature is part of the expertise of people from the visual model, it is the last process data visualization applications.
2. Description of Computer Aided Visualization support data recognized three basic stages.
(1) data representation, data representation is more friendly to show data by computer graphics technology.
Condition (2) the operation data, the data operation is provided by the computer interface, interfaces, protocols, etc. completed based on interaction with human needs data.
(3) data analysis, data analysis is obtained by multi-dimensional data calculation, multi-source heterogeneous data and the core means of mass information implies that it is data storage, data conversion, data computing and data visualization integrated application.
3. Which data visualization a few steps to the integrated use of data?
(1) data acquisition. Various forms of data acquisition can be divided into two kinds of active and passive.
(2) data processing. Data processing is like the original data quality analysis, processing and calculation steps. Target data processing is to ensure data accuracy and availability.
(3) visualization mode. Visual mode is a special form of presentation of data, a common visualization modes have a tag cloud, sequence analysis, network structure, electronic maps.
(4) visualization. Visualization applications mainly based on the needs of the user in charge of expansion, the most important application mode is used to observe and demonstrate, through observation and analysis of the human brain and cognitive reasoning, to help people discover new knowledge or get a new conclusion.
4. Simple visualization of said application data.
Visualization applications mainly based on the needs of the user in charge of expansion, the most important application mode is used to observe and demonstrate, through observation and analysis of the human brain and cognitive reasoning, to help people discover new knowledge or get a new conclusion. Visual interface can also help people who interact with the data, to help people complete iteration of the data, by visualizing the results of computational experiments produce series of several steps the data.
5. Description of text visualized significance.
Semantic feature can contain text (e.g., word frequency and degree of importance, the logical structure, topic cluster, the dynamic evolution, etc.) directly demonstrated.
6. Network (Figure) What are the main form of visualization?
(1) Noda researchers and their social network diagram organization.
(2) based on the tree and the nodes connected to FIGS visualization method.
(3) based on the space-filling tree visualization.
(4) Based on Mass densely bundled visual side of FIG.
7. Multiple Data visualization is mainly used in what scenario?
The goal is to explore multidimensional data analysis and pattern of distribution of multidimensional data items and reveal hidden relationships between different dimension attributes. Mainly used in multi-dimensional visualization based on traditional relational database and data warehouse applications cube widespread in.
8. Large data visualization software and tools What?
（1）Excel
（2）Processing
(3) NodeXL
（4）ECharts