Published inMLearning.ai·PinnedMember-onlyBest Free Resources to Learn Reinforcement Learning in 2023Several days ago, AlphaTensor was introduced by DeepMind on Nature. I think this is the third time that DeepMind’s Reinforcement Learning(RL) research hits Nature(AlphaGO, AlphaFold and AlphaTensor now). Although RL is powerful, it is more difficult to jump in because there are fewer resources or systematical resources on this topic…Reinforcement Learning3 min readReinforcement Learning3 min read
Published inMLearning.ai·PinnedMember-onlyDifferences between Sobol and SHAP Sensitivity Analysis on Housing Prices PredictionsI recently applied both Sobol and SHAP to my model to get the most impactful feature, because I thought using two methods could be more convincing. However, I got inconsistent importance scores from the two methods. Consequently, I have to figure out what is wrong; life is hard. Test on…Feature Importance5 min readFeature Importance5 min read
Published inPathway to Data Analysis·PinnedMember-onlyTop 3 PowerBI Dashboard/Report ExamplesAs a former web developer, I recently notice that designing and building PowerBI Reports is just like creating a dashboard website because they are both Dashboards. The only difference is the way they are built, written in JaveScript or created using PowerBI desktop. That’s not that important when talking…Power Bi3 min readPower Bi3 min read
PinnedMember-onlyTools to Create Graphs, Tables and Equations in Academic Writing — Latex, Draw.io, Asana and moreI wrote my confirmation report for the last 3 months, revised, revised and revised. The first lesson I learn is the importance of graphs, tables and equations. I love graphs all the time, since I love anything presented visually pleasing, e.g. Japanese food. The tables for a list of papers…Visualization4 min readVisualization4 min read
Published inILLUMINATION·PinnedMember-onlyFrom Zero to Star Seller on Etsy in 4 MonthsI have been selling 3D prints on Etsy since August; several days ago, I became a star seller. According to their star seller criterion, it is not a big deal. But I am still quite happy about it since everything happened in just four months from the moment I received…Etsy5 min readEtsy5 min read
Published inPathway to Data Analysis·6 hours agoMember-onlyData Analysis with ChatGPT — Diabetes Prediction (Automatic Diagnosis)The medical resources are so scarce that we may need to wait for years to get a diagnosis if we have no obvious symptoms. No one is to blame; serious patients need to be treated first. However, while waiting, a minor condition could escalate into a major disease, starting a…Machine Learning6 min readMachine Learning6 min read
2 days agoMember-onlyAdjust the OpenStreetMap Street Network Graph with NetworkXI have obtained a street network using a polygon, if you are interested in how to obtain the road network you want, you can check this post. I will check 0. Visualize the network and a bit of GeoDataframe Renaming the Nodes and Edges Accessing the neighbors/downstream roads, updating the…Networkx5 min readNetworkx5 min read
Published inPathway to Data Analysis·2 days agoMember-onlyData Analysis with ChatGPT — Time Series Data Exploratory Analysis (EDA)I’d like to share my opinion first: the analysis of time series data is heavily dependent on domain knowledge and human instructions. Consequently, ChatGPT — via the ‘Advanced Data Analysis’ feature — cannot offer any in-depth analysis without proper guidance. I have recently been working with a vehicle trajectory dataset…ChatGPT5 min readChatGPT5 min read
3 days agoMember-onlyAnalyzing Geographic Data with Python — Map Matching with LeuvenMapMatching PackageIn the last post, I obtained the street network I wanted to use. Subsequently, the trajectory/GPS data had to be matched to the streets. This is necessary because GPS readings provide pure latitude and longitude coordinates, but we want to know the specific roads on which the vehicle is travelling. …GIS7 min readGIS7 min read
Published inPathway to Data Analysis·6 days agoMember-onlyData Analysis with ChatGPT— Suicide Rates OverviewA few days ago, it was “R U OK? Day” I noticed it after reading the posts on social media late in the evening. Every second Thursday of September, Australia observes “R U OK? Day,” which is a national day of action dedicated to reminding people to ask family, friends…Data Analysis7 min readData Analysis7 min read
