A. Machine data collection
Machine data collection will crawl and collect data from different angles, different from the previous manual data collection, the data collection machine is no longer a small sample, a particular sample and to analyze the overall data acquisition, instead of using a large sample or a whole data analysis, which broke the original data analysis model, the accuracy of the data analysis is also greatly improved.
II. Description of machine data collection
1. [Acquisition URL crawler-based technology, for example: Scrapy, BeautifulSoup etc.]
2. Content Acquisition
3. [Automatic Data Processing data cleansing, tokenizer]
4. The acquisition monitoring
III. Manual data collection
1. Artificial survey
Artificial survey refers to the investigators by asking respondents to understand the way the survey methodology to collect information materials. Artificial market research survey is the most basic applications, the most common method.
Features: survey respondents and respondents are interacting processes influence each other, but also the process of interpersonal communication. Survey results depends not only on the quality investigator, but also depends on the quality and cooperative attitude of the respondents.
2. Access survey
a. Interviews access
b. street access
c. Mail Access
d. Telephone access
e. online survey
Features are as follows:
