PinnedAnnie WanginTowards Data ScienceSplitting the text column and getting unique values in PythonA user case for a none-fixed-length text column·5 min read·Dec 3, 2020--1--1
Annie WanginTowards Data ScienceTraversing , cleaning batch worksheets in batch Excel files and interacting with MySQLCleaning only with pandas·4 min read·Jun 27, 2021----
Annie WanginTowards Data ScienceFormulate the shape and number of parameters for a simple CNN·7 min read·May 19, 2021----
Annie WangUnderstand the basic 6 functions in PyTorchsqueeze(), unsqueeze(), tensor[None],max(),argmax(), and view()·3 min read·May 5, 2021----
Annie WangFunkSVD: math, code, prediction, and validationA brief intro for FunkSVD, prediction, and validation with examples·7 min read·Apr 7, 2021----
Annie WanginTowards Data SciencePredict ratings with SVD in collaborative filtering recommendation systemIncludes how to convert SVD to k dimension and making prediction·4 min read·Mar 30, 2021----
Annie WanginTowards Data ScienceTwo examples of a content-based recommendation system with the most efficient array functionsContent-based, weighted content, array functions·4 min read·Mar 26, 2021----
Annie WanginTowards Data ScienceDeploy a micro Flask Application into Heroku with Postgresql DatabaseFlask is the tool that can be used to create API server. It is a micro-framework, which means that its core functionality is kept simple…·7 min read·Mar 16, 2021--1--1
Annie WanginTowards Data ScienceBertelsman Arvato Financial Solution Customer SegmentationNowadays, with big data becomes reality, people now focus on how to use the data to realize commercial values. One area which is much more…·9 min read·Jan 28, 2021--1--1
Annie WanginTowards Data ScienceLesson learned from StackOverflow Survey for a new entryBased on the survey of 2017 and 2020·4 min read·Dec 8, 2020----