Exploration of Key Points in Evaluation Criteria of Chinese Medicine in the Treatment of Cancer

Although tumor node metastasis （TNM） staging in WM has been accepted and used with no reserve in the criteria of CM diagnosis and treatment of cancer, some differences still exist between CM and WM in the evaluation criterion. The reason for this focuses on evaluation criterion of effects on solid tumor made by the World Health Organization （WHO）, which does not reflect some aspects such as survival time of tumor patients or improvement in quality of life （QOL）. Therefore, forerunners in the CM field have been making efforts to try to find an evaluation criteria that would integrate CM and WM, and thus could be approved by CM and WM specialists.

Countermeasures to Improve the Competitiveness of Medicine Circulation Enterprises in China under the New Situation

Objective To analyze the current situation of medicine circulation enterprises and summarize the influence of frequently introduced industry policies on the pharmaceutical field,so as to provide suggestions on improving the competitiveness and maintaining sustainable development of medicine circulation enterprises in China.Methods Industry policy analysis,literature inquiry,expert interview and questionnaire survey were used to study the challenges that medicine circulation faced under the new situation.Then,the key indexes were found out to improve its competitiveness.Results and Conclusion Through the analysis of the current situation of the industry,policy orientation and market demand,some suggestions are put forward for related enterprises to improve their competitiveness.

Optimized Relinearization Algorithm of the Multikey Homomorphic Encryption Scheme

Multikey homomorphic encryption(MKHE) supports arbitrary homomorphic evaluation on the ciphertext of different users and thus can be applied to scenarios involving multiusers(e.g., cloud computing and artificial intelligence) to protect user privacy. CDKS19 is the current most efficient MKHE scheme, and its relinearization process consumes most of the time of homomorphic evaluation. In this study, an optimized relinearization algorithm of CDKS19 is proposed. This algorithm reorganizes the evaluation key during the key generation process, decreases the complexity of relinearization, and reduces the error growth rate during homomorphic evaluation. First, we reduce the scale of the evaluation key by increasing its modulus instead of using a gadget vector to decompose the user’s public key and extend the ciphertext of homomorphic multiplication. Second, we use rescaling technology to optimize the relinearization algorithm;thus, the error bound of the ciphertext is reduced, and the homomorphic operation efficiency is improved. Lastly, the average-case error estimation on the variances of polynomial coefficients and the upper bound of the canonical embedding map are provided. Results show that our scheme reduces the scale of the evaluation key, the error variance, and the computational cost of the relinearization process. Our scheme can effectively perform the homomorphic multiplication of ciphertexts.