Aiming at the low accuracy of the traditional value-oriented text mining algorithm of civil and commercial laws, regulation also reimbursement a value-oriented text mining algorithm of civil and commercial law based on an emotional dictionary is designed. Through the civil and commercial law value orientation text word segmentation, eliminate the redundant values in the text. Select the text features of the value orientation of civil and commercial law, regulation also reimbursement and use the one hot method to represent the text vector. Calculate pad and emotional intensity, construct civil and commercial law value orientation text, and mine emotional dictionary. The confusion matrix is established to realize the text mining of the value orientation of civil and commercial law. The experimental results show that the accuracy of the designed algorithm for value oriented text mining of civil and commercial law is significantly higher than that of the traditional algorithm, which can solve the problem of low accuracy of the traditional value oriented text mining algorithm of civil and commercial law.

The purpose is to improve the security of the application of big data technology and ensure the stable development of society in the context of big data. Firstly, big data technology and its development are discussed. Secondly, the social problems caused by big data technology are analysed. Finally, the governance principles and legal governance methods are proposed based on the social problems caused by big data technology. The research results manifest that the social problems caused by the application of big data technology basically include psychological invasion, privacy leakage, the digital divide etc. These problems have caused great harm to society and the public. Through these problems, the basic governance principles and legal governance methods of social problems under the application of big data are designed, which basically include the principles of people‐oriented, fairness and justice, openness and transparency, participation and sharing, respect and protection, and accountability. And the basic connotation and characteristics of legal means are discussed, thereby improving the basic function of legal means of governance. This research not only provides basic concepts and standards for the development and application of big data technology but also contributes to safeguarding public interests and promoting social stability.