Obtaining Single Document Summaries Using Latent Dirichlet Allocation

摘要

The paper presents a method for protection office door to open only for authentic employees. Firstly, the employee enter his ID into remote computer through keypad fixed out door, then the computer automatically reply by asking the employee a few questions appear on the keypad screen. To open the door, the employee must answer all of questions within certain and short period of the time. The questions are been selected randomly using e-exam technique from a bank of questions which have been designed based on invariant private information related with employee. The paper is aimed to use a simple and accurate method for employee authentication comparing with traditional office security techniques.