1. Doctor Candidate ： Zhang Weiqun Xi‘an Jiao Tong University 2012 ， 08 ， 28 Online trading fraud behavior characteristics measurement.

2. Literature studies 1.Credit Mechanism 2.The fraud impact factors analysis3.Fraud Loss Measurement 4.insurance fraud measurements

3. Literature studies Credit mechanism design Fraud Control Fraudulent identification Fraud Measurement Basic Research Transaction fraud measurement in china

4. 1. The online trading fraud measure research supported by Taobao platform data 2. Measurement study perspective on the business activities of the trading fraud transaction Study basis

5. 1.Online trading fraud level measure index and index system. 2. Measure based on commercial chain fraud level. 3.Measure based on commercial chain fraud distribution characteristics. 4.Effect measure of online trading fraud diffusion. 5.Mining algorithms design by online trading fraud behavior characteristics. Research contents:

6. 1.Measure of online trading fraud level ( 1) Fraud levels - size, degree; index and index system. ( 2) If all should be considered, does it need for comprehensive evaluation? ( 3) Do we need to consider fraudulent distribution characteristics based on the chain of commerce? Does it have any effect on the fraud comprehensive evaluation results? Research thinking and progress :

7. 2.Measurement based on the business chain fraud distribution characteristic ( 1) Description of fraud distribution characteristic ---- is it uniformly distributed? If not, what is the distribution ? What characteristics does it have? ( 2) Is it necessary to consider fraud scale and quantity distribution differences? Research thinking and progress :

8. 3, Diffusion effect measurement of online trading fraud behavior ( 1) How to design the measurement tools of the spread effect of online trading fraud ? ( 2) What is the difference between online trading fraud diffusion effect and not online? Research thinking and progress :

9. 4.Mining algorithm design of online trading fraud behavior characteristic ( 1) Algorithm design of online trading fraud behavior characteristics based on the massive data – classification and correlation algorithm ( 2) What specific algorithm should also be considered? Research thinking and progress :

10. 5. Research suggestions: What other problems should be considered concerning the study of online trading fraud behavior characteristics? Do you have any better suggestions? Research thinking and progress :

11. The end Thanks!