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Jay-Kay

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1600/8小时
2年工作经验

腾讯
应用研究

python
c++
推荐/广告/搜索/自然语言处理

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擅长技能

主要开发语言是Python和C++。
现就职于
腾讯数据平台部,广告推荐算法方向
曾就职于
1. 百度推荐技术平台部,数据产品和大数据架构方向,具体工作包括但不限于分布式实时计算,数据仓库离线计算,用户画像,分布式资源调度以及推荐算法。
2. 头条data业务线,广告系统部,广告投放方向,程序化交易研发组,具体工作包括但不限于投放端的后台开发和策略研发,参与RTB的DSP广告业务和部分爬虫开发需求,涉及广告相关算法。
3. 滴滴智能出行网约车技术部,主要涉及到运力调度和派单算法的开发

项目经验

1. Developed a pipeline for prediction in supply and demand from scratch using Holtwinters, Catboost and DNN, and increased precision and recall of prediction in supply and demand by 18% and 9% respectively.
2. Constructed a pipeline for prediction in online-time presence of drivers using AutoEncoder, Lstm and DNN with multi-head attention from scratch and increased R-square of online-time presence by 0.2.
3. Established a pipeline for naked-man prediction with DenseNet and Iifted precision and recall of naked-man prediction by 3% and 7% respectively.
4. Built a pipeline of detecting potential users for User Contacts of Huanbei app with DBSCAN.
Tried BiLstm + CRF in named entity recognition of Chinese name and get a F1-score of 89.6%.
5. Performed Quant analysis in stock prediction with Xgboost and Lstm.
6. Increased precision and recall by 15.4% and 7% in stock prediction in comparison with baseline model.
7. Joined Numerai competition and got top 90 from over 1000 competitors with GMM model.
Participated in Kaggle competition--Serbank Housing Price and got top 7% with Xgboost stacked with DNN.

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周六全天
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浦东

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