Offline Version get_app
- Natural Language Processing
- Complex Network
- Knowledge Graph
- Deep Learning
- Reinforcement Learning
- 2012.09 ~ 2015.03 Hebei University of Technology, M.S. in Business Management
- 2008.09 ~ 2012.07 Hebei University of Technology, B.S. in Information Management
- 2015.03 ~ Now JD Finance, Algorithm Engineer
- 2013.11 ~ 2014.02 Founder International Co., Ltd., Algorithm Engineer
Daat (Complex Network & Knowledge Graph)
2018.04 ~ Now JD Finance Project Leader
- JD Finance Knowledge Graph Technical White Paper：Investigate the entire Knowledge Graph technology stack, including realted models, data, evaluation reports and open source tools, and summarize the final research report.
- Automatic Sensitive Information Identification：Automatic sensitive information identification for data stored in the data warehouse, assisted with data encryption policy implementation. The model is constructed using the Wide & Deep network based on the meta-information of the data (e.g., table name, table comment, column name, column comment, etc.) and value-information of the data (e.g., the data values of every column). Build the Wide network with extracted traditional features and the Deep network with text features using Char Embeddding + CNN, and the F1-Score on test data is 95%+.
All Seeing Eyes (Chinese Address Analytics)
2015.03 ~ 2018.04 JD Finance Project Leader
- Development of Chinese address analytics algorithms, including: segmentataion, classification, integrity, POI identification and similarity (accuracy 90%+).
- Development of Address Profile System based on the basic algorithm engine. It increased the conversion rate of users by 30%+ in the offline payment service.
- Development of the anti-fraud and credit model based on the Chinese address analysis system. The anti-fraud model identified illegal encashment orders with 200,000 yuan/day, and more than 10 million users were granted credit with the credit model.
- This project has beed awarded the “Innovation Seed” prize of JingYa Cup innovation competition in JD.com ranking 20 of 378.
- Development of Enterprise Address Profile System based on the basic algorithm engine which was embeeded into JD Enterprise Credit.
- Development of Rural Finance Service Station Location Solution base on the Address Profile System.
User Behavior Analytics
2017.10 ~ 2017.12 JD Finance Algorithms Engineer
- Development of a user behavior representation method named on Behavior2Vec. Based on hierarchical clustering and depth search, a hybrid model for identifying user abnormal behavior is proposed. Compared with Bag of Words and N-GRAM methods, the number of abnormal users identified is 3+ times of traditional methods.
2015.03 ~ 2015.10 JD Finance Algorithms Engineer
- Development of a hybird product life cycle identifacation model based on Bass Diffusion model, optimized time series similarity method and clustring method. It got an accuracy of 95%+ when identifing the excess inventory products, which helped to make loans goods pledge decisions and calculate the loan-to-value ratio.
- Development of product information fusion model and system with ElasticSearch which got 90%+ recognition accuracy and provided accurate and relevant information, such as price, etc.
Smart Public Security (EzMap)
2013.11 ~ 2014.02 Founder International Co., Ltd. Algorithms Engineer
- Development of a series prediction algorithm based on EMD and SVR for crime analysis and time series prediction in smart city project.
- Development of a serial crime cases identifacation algorithm based on k-Prototypes.
- Development of public security metadata import tools and XML based police GIS database upgrade tools.
- R: starstarstarstarstar_border
- Python: starstarstarstar_borderstar_border
- Java: starstarstarstar_borderstar_border
- Julia: starstarstar_borderstar_borderstar_border
- Lisp: starstarstar_borderstar_borderstar_border
- Feng Zhou, Huafei Li, Lizhang Zhan, Yeliang Fan, Hua Yin and Liu Jiang. “A Novel Ensemble Strategy Combining Gradient Boosted Decision Trees and Factorization Machine Based Neural Network for Clicks Prediction.” Big Data and Artificial Intelligence, 2018 International Conference on., 2018.
- Li Jie, Fan Yeliang*, et al. “An Improved Forecasting Algorithm for Spare Parts of Short Life Cycle Products Based on EMD-SVM.” Information Science and Cloud Computing Companion (ISCC-C), 2013 International Conference on. IEEE, 2013.
- Research on Dynamic Pricing Strategies of Digital Products based on Network Externality. Master Thesis, 2014.
- Chinese address segmentataion method and system (CN105159949A, 1st Inventor, 2015)
- Product inventory predicting method and device (CN106056239A, 1st Inventor, 2016)
- Product life cycle identifacation method and device (CN106408217A, 1st Inventor, 2017)
- Chinese address similarity calculation method and device (CN107239442A, 1st Inventor, 2017)
Open Source Projects
- Data Science Introduction With R, a getting started tutorial of data science based on R (in Chinese).
- Sci-Hub EVA, Sci-Hub EVA is a cross-platform Sci-Hub GUI application.