Guanqun (Garrick) Li

Guanqun (Garrick) Li Email and Phone Number

供应链算法专家 @ 叮咚买菜
上海市浦东新区盛夏路500号, 盛夏路500号,China
Guanqun (Garrick) Li's Location
Putuo District, Shanghai, China, China
Guanqun (Garrick) Li's Contact Details

Guanqun (Garrick) Li work email

Guanqun (Garrick) Li personal email

n/a
About Guanqun (Garrick) Li

Data and Algorithm Specialist at ELEME Inc.

Guanqun (Garrick) Li's Current Company Details
叮咚买菜

叮咚买菜

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供应链算法专家
上海市浦东新区盛夏路500号, 盛夏路500号,China
Employees:
442
Guanqun (Garrick) Li Work Experience Details
  • 叮咚买菜
    供应链算法专家
    叮咚买菜
  • 叮咚买菜
    Supply Chain Algorithm Specialist
    叮咚买菜 Jun 2021 - Present
    Shanghai, China
  • 饿了么
    Solution Owner & Develop Leader Of Courier Scheduling Problem
    饿了么 Oct 2020 - Jun 2021
    ● Fleet prediction: demand time series model, courier-order relation Logit Regression model (Java)● Period-based courier scheduling: fleet assignment considering operation needs and courier intents● Result collection: measure the merits of suggested scheduling results by satisfaction of periods● 运力预测:单量预测时间序列模型、人单匹配关系逻辑回归(Java实现)● 分时段排班运筹模型:考虑运营规则与骑手志愿的周维度运力分配(ODPS中使用ORTools)● 结果回收:以时段满足率为核心指标衡量推荐排班、手动排班的优劣,物流完成率整体提升
  • 饿了么
    Data & Algorithm Specialist
    饿了么 Feb 2020 - Jun 2021
    Shanghai, China
    ● Dept. of Intelligent Decision: CBD real-time chain reaction, mid-long term demand supply coordination● Pressure Adjustment: define pressure ratio, realization of flow adjustment and logistics adjustment● Courier scheduling problem: demand estimation, courier portrait and courier scheduling● Customer-side delivery fee: comparison of delivery fee with counterparts, reduce lose rate● Refinement of map-end Information: courier track analysis in electronic fence, DBSCAN clusters● 决策智能部:以CBD实时联动,中长期供需协同为目标的算法开发、工程迭代、结果回收分析● 压力调控:定义商圈压力系数,实现流量测调控(Rank)与物流侧调控(加T/调C配/下补贴/配送圈)● 运力排班:单量预测,骑手画像,人单匹配模型,基于运营规则和骑手志愿的运力排班● 智能C端配送费:与竞对比较C配,通过降C配的方式降低落败率,同时平衡物流总收入● 地图末端精细化:电子围栏内的骑手轨迹分析,通过聚簇算法等得出AOI配送难度指标
  • 饿了么
    Solution Owner & Develop Leader Of Pressure Balance
    饿了么 Jan 2020 - Jun 2021
    ● CBD real-time chain reaction: emphasis on logistics adjustment to on flow adjustment, refine the utilization circumstances, and protect high value retailers● Area pressure ratio: (old) the ratio of real-time on-duty load with total load capacity; (new) the prediction of logistics target in the next time slices● Logistics adjustment: T plus strategy, C plus strategy, suspend allowances, limit the delivery range● Flow adjustment: retailer stratification, retailer sequence index, single-retailer stuck adjustment● CBD实时联动:从物流侧调控转变为流量侧调控,精细化调控使用场景,保护高价值商户● 商圈压力系数:(旧)实时背单数量与背单能力的比值;(新)对于将来时间片内的物流核心指标的预测● 物流侧调控:加T,加C配(精细化),下补贴,缩配送范围;调控策略的制定,考虑不同压力系数档位下的物流核心指标(Java实时线上服务)● 流量侧调控:通过商户分层(V等级)和物流因素(T等级)形成商户排序因子,单店卡餐调控作为辅助
  • Youhualin Information Technology Co., Ltd.
    Solution Owner Of Vehicle Routing Problem
    Youhualin Information Technology Co., Ltd. Mar 2019 - Jan 2020
    ● VRPTW: use AMAP API to get distance and time matrix, solve the problem by Tabu Search, utilize a variety of neighborhood search rules, and consider the 3rd ring restrictions, node-fixed routes, buffered capacity, etc.● VRPTW问题:使用高德地图API获取时间距离矩阵,禁忌搜索算法建模求解,应用多种邻域搜索方式,实际业务中考虑三环限行、主线路、弹性额载等需求(Tabu Search)
  • Youhualin Information Technology Co., Ltd.
    Solution Owner Of Airline Fleet Assignment Problem
    Youhualin Information Technology Co., Ltd. Oct 2017 - Jan 2020
    ● Long-term problem: based on OD and frequency information, optimize the flight plan for a future season; consider the slots, fixed connections, schedule consistency, minimize long connections, etc.● Short-term problem: based on an original flight plan, take the overall contribution as KPI, optimize the daily fleet assignment and aircraft routing, and consider the situation when regulation design defects● 中长期编排:通过航班班次量输入,制定各航司航季网络规划;核心为时空网络模型,再通过建模解决实际业务中的时刻库、固定衔接、班期一致性、减少长过站等要求(使用Gurobi解MIP)● 短期编排:以初始航班计划为基础,日循环进行的机型调整与飞机路线规划(使用CPLEX解MIP)
  • Youhualin Information Technology Co., Ltd.
    Optimization Algorithm Engineer
    Youhualin Information Technology Co., Ltd. Jul 2017 - Jan 2020
    Shanghai City, China
    ● Project life-cycle support: POC, algorithm implementation plan, code delivery, solution improvement● Participate in: Airline (FAM), Logistics (VRPTW), Warehousing (location, layout, goods allocation), APS● Fleet Assignment Problem: adopt the time-space network model to solve airline-based FAM problems● Vehicle Routing Problem: multi-vehicle problems with time windows and operation requirements● Inventory Problem: cell-based warehouse design and cargo allocation optimization problems● 全程负责项目POC,算法实施方案,编写交付,后期调优等项目完整生命周期的算法支持工作● 参与项目:航空(FAM),物流(VRPTW),仓储(选址问题、布局问题、货位问题),排产(APS)● 航空网络问题:时空网络建模,解决航网自动编排、时刻时长调整、优化备份运力、机型配置问题● 路径规划问题:使用Tabu Search解决多车型含时间窗VRP,考虑限行、主线路、弹性额载等需求● 库存管理问题:栅格化的仓库货架地堆布局设计,大件货物库内货位优化
  • Actiview
    Project Manager
    Actiview Jan 2016 - Jun 2017
    Shanghai City, China
    ● Designed the SEM promotion platform, SEM data platform and frontstage and backstage projects ● 负责前后端产品和SEM营销平台、数据平台:需求分析,前期调研,方案设计,测试上线
  • Ibm China
    Industry Consultant
    Ibm China Aug 2015 - Jan 2016
    Beijing City, China
    ● Analyzed the business needs of a SOE publication retailer to build a comprehensive online shopping website;● Wrote bidding documents and demand documents for UI/UE Designs, B2C Frontstage and Statistics Platform;● Worked for Apple + IBM partnership, Telecomm Sector.● 分析某图书出版集团的业务需求,为其建设多元化产品的电商网站● 负责UI/UE设计,B2C前台模块,经营分析模块;撰写招标文件和需求规格说明书● Apple + IBM合作项目部门,电信行业组
  • University Of Illinois At Urbana-Champaign
    Teaching Assistant
    University Of Illinois At Urbana-Champaign Aug 2014 - Jul 2015
    Urbana-Champaign, Illinois Area
    ● Led weekly discussion sessions in Engineering Graphics & Design, taught Autodesk Revit at the lab;● Led weekly review sessions in Production Planning & Control● 组织<工程制图学>的视图概念教学,上机教授制图软件;● 组织<生产控制与规划>每周的讨论课
  • University Of Illinois At Urbana-Champaign
    Graduate Research Assistant
    University Of Illinois At Urbana-Champaign Aug 2013 - Jul 2015
    Project: Robust Aircraft Routing Problems in Large Scale Sets, with Prof. Lavanya Marla● Research on aircraft routing under uncertainty, characterize the uncertainty into parameters, perform dataset computations, solve the model and compare the solution robustness● 基于全美航班的延误历史数据,对某航司的机队进行飞机路线规划;建立多套数学模型,将不确定性刻画为参数值,应用多种模型求解与比较最终结果鲁棒性
  • A.T. Kearney
    Consultant Intern
    A.T. Kearney Dec 2011 - Jun 2012
    Shanghai City, China
    ● Worked as primary assistant of a chemical distributer project and a logistics company project;● Researched overall chemical industry and understood the operational modes and key competences;● Researched the natural gas & shale gas market in China.● 全程参与化工贸易国企战略分析项目,研究化工行业的经营模式与痛点● 国内天然气、页岩气市场研究
  • Ipsos Business Consulting
    Business Analyst Intern
    Ipsos Business Consulting Sep 2011 - Nov 2011
    Shanghai City, China
    ● Researched the sales mode of security electronics in a security electronics marketing project;● Estimated the overall demand of distributors and contractors in terms of the different product segments.● 外资500强电子工业产品企业的经销商渠道梳理项目● 对于不同的商品种类,统计估算批发商与经销商的总需求
  • Everbright Securities
    Investment Consultant Intern
    Everbright Securities Jul 2011 - Aug 2011
    Shanghai City, China

Guanqun (Garrick) Li Skills

Logistics Ios Public Policy Matlab Microsoft Office Powerpoint Research Securities Market Transportation English Investments Outlook Highway Geometric Design Strategic Planning Windows Management Consulting Html

Guanqun (Garrick) Li Education Details

Frequently Asked Questions about Guanqun (Garrick) Li

What company does Guanqun (Garrick) Li work for?

Guanqun (Garrick) Li works for 叮咚买菜

What is Guanqun (Garrick) Li's role at the current company?

Guanqun (Garrick) Li's current role is 供应链算法专家.

What is Guanqun (Garrick) Li's email address?

Guanqun (Garrick) Li's email address is ga****@****eah.net

What schools did Guanqun (Garrick) Li attend?

Guanqun (Garrick) Li attended University Of Illinois At Urbana-Champaign, Shanghai Jiao Tong University, University Of Cambridge.

What skills is Guanqun (Garrick) Li known for?

Guanqun (Garrick) Li has skills like Logistics, Ios, Public Policy, Matlab, Microsoft Office, Powerpoint, Research, Securities Market, Transportation, English, Investments, Outlook.

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