Here I’m excited to show some outputs of my weekend study. The following interface is based on the data from power bi udemy course That’s really cool, isn’t it? I’m planning to do another projec...
Password-less for connecting Github and remote server
I used to enter the password when pushing file to Github or connecting to remote server. I always feel this step redundant and recently came to konw that SSH is a good solution. I want to record th...
Analyse the loss of airline client
Project description So this project was acutally done in my undergraduate course–machine learning & data mining. The topic is about the airline company’s customer analysis and prediction. The d...
DHH22 Hackathon Project
Project Background The project is a topic of Helsinki Digital Humanities Hackathon 2022.The theme is Network of Parlamint. The data include national parliament speeches of 17 european countries. We...
PCA & SVD
PCA details In machine learning, threre are many features can be used for training. For example, we have 72 features in each instance and 1000 pieces of data. So now we have a matrix D with shape o...
Chinese word segmentation statistical approach(I)
Language model is a model predicting probabilities of sentences or sequences of words. This blog discuss about how to do word segmentation. Unlike European languages, some Asian languages like Chi...
Chinese word segmentation statistical approach(II)
Introduction This blog introduces the bigram model for word segmentation. So the bigram model considers previous character which makes more sense in terms of context. The equation should be: \(P(W_...
Parsing mathematical expressions with tree structure
Credit to Problem solving with algorithms and data structures using Python section 7.5 & 7.6 & 7.7 The idea is to use binary tree to parse mathematical tree. For example, (3*(2+5)) the tre...
Graph and shortest path
About Graph, there are several basic concepts: Node, as a point in the graph. Edge/Arc, meaning two nodes are connected. Weight, the value/expense of edge. Path, the way including all pass...
Matkani Ruotsissa
Minä menin Ruotsiin lentokoneella viime viikonloppuna. Minä saavuin tukholmaan yhdeltätoista. Sitten menin bussilla kaupunkikeskukseen lentoasemalta. Lipun hinta oli kaksitoista euroa. Iltäpäivällä...