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In this paper, we propose a novel unsupervised online learning trajectory analysis method based on weighted directed graph. Each trajectory can be represented as a sequence of key points. In the training stage, unsupervised expectation-maximization algorithm (EM) is applied for training data to cluster key points. Each class is a Gaussian distribution. It is considered as a node of the graph. According...
Sickbed arrangement is an important part of daily management in the hospital. Since the service time for different type of patients varies, the queuing system here, with multi-random input flow, can not be solved accurately by using classical queuing theory. Based on the analysis of patient information, we apply the simulation method into the sickbed arrangement system, and take the average waiting...
Time series analysis is commonly used in economics and management research. It depicts the orderliness of the historical data changes over time with proper models, and analyzes and forecast the value of variables. Based on three modes of ARMA modeling, this paper suggests a method to predict the potential of resource of electronic waste with the data of inventory of electronic waste. With quantitative...
Role as new abstraction has been gradually used in agent analysis and design research field, and it is generally defined as an entity or a set of properties. The relationship between role and agent is relative independent, and role model is established before agent model. In this paper, we think role and agent is interdependent, agent is carrier of role, and role means what agent can do. When analysis...
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