A Way to Understand Inpatients Based on the Electronic Medical Records in the Big Data Environment

Public Perception on Healthcare Services: Evidence from Social Media Platforms in China

Social media has been used as data resource in a growing number of health-related research. The objectives of this study were to identify content volume and sentiment polarity of social media records relevant to healthcare services in China. A list of the key words of healthcare services were used to extract data from WeChat and Qzone, between June 2017 and September 2017. The data were put into a corpus, where content analyses were performed using Tencent natural language processing (NLP). The final corpus contained approximately 29 million records. Records on patient safety were the most frequently mentioned topic (approximately 8.73 million, 30.1% of the corpus), with the contents on humanistic care having received the least social media references (0.43 Million, 1.5%). Sentiment analyses showed 36.1%, 16.4%, and 47.4% of positive, neutral, and negative emotions, respectively. The doctor-patient relationship category had the highest proportion of negative contents (74.9%), followed by service efficiency (59.5%), and nursing service (53.0%). Neutral disposition was found to be the highest (30.4%) in the contents on appointment-booking services. This study added evidence to the magnitude and direction of public perceptions on healthcare services in China’s hospital and pointed to the possibility of monitoring healthcare service improvement, using readily available data in social media.

Securing electronic medical record in Near Field Communication using Advanced Encryption Standard (AES)

Doctors usually require patients' medical records before medical examinations. Nevertheless, obtaining such records may take time. Hence, Near Field Communication (NFC) could be used to store and send medical records between doctors and patients. Another issue is that there could be a threat such as, Man In The Middle Attack and eavesdropping, thus, a security method is required to secure the data. Furthermore, the information regarding the key and initialisation vector in NFC cannot be sent using one data package, hence, the data transmission should be done several times. Therefore, the initialisation vector that changed in each transmission is implemented, and the key utilised is based on the component agreed by both parties. This study aims at applying the cryptography process that does disturb and hinder the speed of data transmission. The result demonstrated that the data transmitted could be secured and the encryption process did not hinder data exchange. Also, different number of characters in plaintexts required different amount of time for encryption and decryption. It could be affected by the specifications of the devices used and the processes happening in the devices.