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Siyang Liu's Projects

learnpythonforresearch icon learnpythonforresearch

This repository provides everything you need to get started with Python for (social science) research.

lectures-1 icon lectures-1

Lecture material for Big Data in Economics (EC 410/510)

leetcode-1 icon leetcode-1

:pencil2: 算法相关知识储备 LeetCode with Python and JavaScript :books:

leetcode-go icon leetcode-go

✅ Solutions to LeetCode by Go, 100% test coverage, runtime beats 100% / LeetCode 题解

lightning icon lightning

The most intuitive, flexible, way to build PyTorch models and lightning apps that glue together everything around the models, without the pain of infrastructure, cost management, scaling and everything else.

limperg_python icon limperg_python

Repository with material for the Limperg Python course by Ties de Kok.

lob icon lob

Benchmark Dataset of Limit Order Book in China Markets

lstm icon lstm

Minimal, clean example of lstm neural network training in python, for learning purposes.

lstm-1 icon lstm-1

基于LSTM神经网络的时间序列预测

macro_ml icon macro_ml

Course Website on Macroeconomic Analysis with Machine Learning and Big Data

mec_equil icon mec_equil

'math+econ+code' masterclass on equilibrium transport and matching models in economics

mec_optim_2021-01 icon mec_optim_2021-01

‘math+econ+code’ lectures on optimal transport and economic applications, January 2021

mfe2019 icon mfe2019

Papers replicated in Quantiative Asset Management

ml-and-data-science icon ml-and-data-science

Machine Learning and Data Mining: Regression [Linear (Selection and Shrinkage, Dimension Reduction, Beyond Linearity) & Non-Linear Regressions (Logistics, K-NN, Trees)], Cross Validation (LOOCV, K-Folds, Bias vs. Variance), Classification (LDA, QDA, K-NN, Logistic, Tree, SVM), Clustering (PCA, K-Means, Hierarchical) This course will provide an introduction to main topics in data mining / statistical learning, including: statistical foundations, data visualization, classification, regression, clustering. Emphasis will be on statistical learning methodology and the models, intuition, and assumptions behind it, as well as applications to real-world problems. You may find my final project in the stats 415 project folder. Project Summary  Implemented all the classifier learned throughout the semester to predict obesity rates in America as classified through the BMI with the best classifier as 7-fold KNN and prediction accuracy of 81.54%  Analyzed model selection methods to provide the most optimal model and finding the best predictors; concluded that BMI can be non-parametrically predicted based off income, eating habits, exercise habits and shopping habits

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