First, data science.
Data science is mainly based on statistics, machine learning, data visualization and knowledge in a certain field. Its main research contents include the basic theory of data science, data preprocessing, data calculation and data management.
The technologies and tools used in data science are very professional, and we will give a more detailed list in this book. At present, R language is one of the most commonly used tools for data scientists. Therefore, all the calculation examples in this book adopt R programming technology to help readers accumulate practical experience in data science.
Second, art history.
The major of art history is the major of art history theory. The theory of art history is an undergraduate major in colleges and universities, which belongs to the art theory major. It is awarded a bachelor's degree in art with a four-year academic system.
This major trains compound talents who have basic knowledge of Chinese and foreign art history and art theory and can work in cultural departments, art galleries, museums, newspapers and magazines, radio and television, publishing institutions, cultural companies and other units at all levels. A considerable number of graduates will enter universities, vocational colleges and middle schools as art course teachers after passing graduate studies.
Third, marketing.
Marketing, called marketing in English, is also called marketing, marketing or marketing. Market belongs to the category of commodity economy, and it is a form of economic contact with commodity exchange as its content. For enterprises, the market is the starting point and destination of marketing activities.
Marketing is not only a function, but also an activity, process and system that an organization creates, communicates, disseminates and delivers customer value for the benefit of itself and stakeholders, and brings economic value to customers, customers, partners and the whole society. Mainly refers to the process of marketing personnel to carry out business activities and sales behavior for the market.