Jedrzej Kardach
Verified Expert in Engineering
数据科学家和机器学习开发人员
Jedrzej是一位多才多艺的全栈数据科学家和ML工程师,拥有5年的经验. 具有较强的Python后端工程技能, he excels in fast-paced, 以客户价值为中心的工作环境. Jedrzej与普林斯顿大学ORFE部门合作开发了尖端的模拟环境,以构建赞助搜索拍卖算法. Additionally, 他已经成功地交付了多个基于nlp的分类算法和强化学习解决方案.
Portfolio
Experience
Availability
Preferred Environment
MacOS, Jupyter Notebook, PyCharm, Python, Django, Machine Learning, Deep Learning, TensorFlow, Scikit-learn, Pandas
The most amazing...
...我所做的就是让一个比我高两级的专家创建的模型的性能提高了5倍.
Work Experience
Machine Learning Engineer
Kalepa
- 提出了一个包含主题分类和命名实体识别的NLP二元分类模型, 取得了5倍的改进F1分数比前任, defined target variables, and supervised labeling efforts.
- 推出多个多标签NLP分类模型,用于从大型非结构化文本数据中获取有关业务实体的见解.
- 从大型非结构化文本数据构建了一个信息检索算法.
- 维护模型的后端基础设施,并使用无服务器AWS Lambda进行部署, AWS Step Functions, and Amazon SageMaker.
- 将ChatGPT API集成到公司的面向客户的服务中, 其中包括提示工程,以最大化ChatGPT在给定用例中的效用.
Data Scientist
Booksy
- 为应用程序的某些部分开发了基于事件的产品监控体系结构, 为A/B测试设计性能监控, 并建议对产品进行改进,从而使B2C收购增加30%.
- 设计并实现ETL管道和机器学习模型,用于流失预测和用户聚类.
- 使用Microsoft Power BI、SQL和BigQuery交付商业智能仪表板.
Data Scientist
Ora Ai
- Conducted a yearlong R&与普林斯顿大学的运筹学和金融工程系合作, 专注于开发谷歌广告环境的模拟器,用于在强化学习环境中进行策略测试.
- 构建了无数基于机器学习的模块来预测时间序列, 解决回归和分类问题, 或者特定度量的近似值. 所有这些模块都有助于主竞价算法做出最终的竞价建议.
- 与普林斯顿大学的研究人员一起参与了人工智能技术的开发,以优化管理赞助搜索拍卖的竞标过程.
- 合作开发一个酒店经济环境的模拟器,使用蒙特卡洛方法,允许测试自动营销的算法.
- 共同开发用于酒店自动营销的强化学习算法. 这包括为特价产品设定最优价格,选择合适的沟通渠道和时间.
- 共同创建了一个网络应用程序,促进了数字营销活动的监督,以及管理这些活动的人工智能.
- 开发了Django REST API和ETL管道,用于从酒店管理软件中实时收集数据.
Experience
呼叫中心最优激励方案体系
http://www.cambridge.org/engage/miir/article-details/61831286ad7f7c742d5411f5Education
Master's Degree in Mathematics
伦敦政治经济学院(LSE) -英国伦敦
Bachelor's Degree in Mathematics
伦敦国王学院——英国伦敦
Certifications
Project Management Advanced Topics
Project Management Institute (PMI)
Project Management Fundamentals
Project Management Institute (PMI)
Skills
Libraries/APIs
Scikit-learn, Pandas, NumPy, Matplotlib, XGBoost, TensorFlow, Django ORM, SQLAlchemy, Keras, TensorFlow深度学习库(TFLearn), Natural Language Toolkit (NLTK), Google AdWords, SciPy, Requests
Tools
Seaborn, Jupyter, PyCharm, Git, GitHub, BigQuery, Postman, Bitbucket, AWS Step Functions, ChatGPT, Amazon SageMaker, Jira, Confluence, Microsoft Power BI, Docker Hub, Docker Compose, Plotly, Pytest
Languages
Python, Python 3, SQL, Java
Paradigms
数据科学,ETL,商业智能(BI), REST,线性编程
Platforms
MacOS, Jupyter Notebook, Amazon Web Services (AWS), AWS Lambda, Firebase, Google Cloud Platform (GCP), Docker, Amazon EC2, NoCodeAPI
Storage
PostgreSQL, MySQL, SQLite, Docker Cloud, Amazon S3 (AWS S3)
Frameworks
Django, Django REST框架,Flask
Industry Expertise
Project Management
Other
Data Mining, Machine Learning, Natural Language Processing (NLP), Logistic Regression, Linear Regression, Data Inference, Classification, Text Classification, Text Mining, Simulations, Clustering, K-means Clustering, Learning, Artificial Intelligence (AI), Data Scientist, Data Analysis, Data Analytics, Predictive Modeling, Data Modeling, Classification Algorithms, Programming, Modeling, Algorithms, Random Forests, Support Vector Machines (SVM), Decision Trees, Gradient Boosted Trees, Time Series, Time Series Analysis, Data Structures, Deep Learning, Hyperparameters, Web Scraping, APIs, Google BigQuery, User Monitoring, Real-time Bidding (RTB), Online Bidding, Reinforcement Learning, Bayesian Statistics, Predictive Analytics, Forecasting, Data Visualization, OpenAI GPT-3 API, Language Models, GPT, 生成预训练变压器3 (GPT-3), Data-driven Marketing, Pricing Models, Dashboards, Analytical Dashboards, OpenAI GPT-4 API, Exploratory Data Analysis, Linear Algebra, Statistics, Statistical Methods, Probability Theory, Optimization, Partial Differential Equations, Finance, Mathematics, Analysis, Mathematical Analysis, Cryptography, Discrete Mathematics, Operations Research, Sorting Algorithms, Random Forest Regression, Support Vector Regression, Decision Tree Regression, Ad Optimization, Google Ads, Dash, Web Dashboards, Dashboard Design, Bayesian Inference & Modeling, Information Retrieval, Data Collection, 生成预训练变压器(GPT), Interactive Dashboards, Integration, Consumer Behavior
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