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Machine Learning for Finance (FN 570) 2021-22 Module 1 (Fall 2021)

Announcements

  • Email is the preferred method of communication. Class mailing list will be created as PHBS.MLF@allmail.net. But, the announcements will be made in DingTalk group chat.

Course Resources

Lectures:

No Date Contents
01 9.06 Mon Course overview (Syllabus) | Required software (Python, Github, PyCharm) | Python crash course (Basic, Numpy, Notebook Shorcut Keys)
02 9.09 Thur Intro (Slides, Reading: PML Ch. 1) | Notations, Regression, Weight update (Slides)
03 9.13 Mon PML Ch. 2. Perceptron, Adaline, Gradient descent, Stochastic Gradient Descent
04 9.16 Thur PML Ch. 3. Logistic Regression (LR) (Slides) and Support Vector Machine (SVM) (Slides)
05 9.20 Mon Pandas crash course (Notebook. Also see Datacamp, CheatSheet) | KNN (Slides, Reading: PML Ch. 3)
06 9.23 Thur PML Ch. 3 Code. Decision Tree (Slides, Reading: PML Ch. 3).
07 9.27 Mon Data Preprocessing (Rading: PML Ch. 4), SVD/PCA (Slides, Reading: PML Ch. 5)
08 10.11 Mon LDA (Slides, Reading: PML Ch. 5), Hyperparameters (Slides, Reading: PML Ch. 6)
09 10.13 Wed Bias-Variance, Cross-validation (Slides, Reading: PML Ch. 6)
10 10.14 Thur Evaluation Metric (Slides, Reading: PML Ch. 6), Ensenble (Reading: PML Ch. 7)
11 10.18 Mon Neural Network, Deep Learning, CNN (Reading: Ch. 12-15)
12 10.21 Thur Practical issues of applying ML to the real world.
13 10.25 Mon Topics in ML in Finance
14 10.28 Thur Topics in ML in Finance
15 11.01 Mon Midterm Exam
16 11.04 Thur HSBC Guest Lecture [1/2] | Midterm exam review
17 11.08 Mon HSBC Guest Lecture [2/2]
18 11.11 Thur Course Project Presentation

Homeworks:

  • Set 0: [Required Software] [Due by Thursday]

    • Register on Github.com and let TA know your ID (by DingTalk). Make sure to user your full real name in your profile. Accept invitation to the PHBS organization from TA.
      • Create a designated repository GITHUB_ID/PHBS_MLF_2021 for your HW and project. Tick Initialize this repository with a README and select python under .gitignore
      • Fork PML repository to your repository.
    • Install Github Desktop. Then clone the PML repository to your local storage.
    • Install Anaconda Python distribution (3.X version, not 2.X version). Anaconda distribution is core Python + useful scientific computation libraries (e.g., numpy, scipy, pandas) + package management system (pip or conda)
    • Install PyCharm Community version. (Or Professional version after applying for free student license)
    • Send to TA the screenshots of (1) Github Desktop (showing the PML repository) (2) Jupyter Notebook (Anaconda) (3) PyCharm (See my example).
  • Set 1: [Playing with Pandas dataframe] [Due by 9.27 Monday]

    • The goal of this HW is to be familiar with pandas package and dataframe. Due to limited time, I cannot cover pandas in class. You need to teach yourself. Remenber that there's many answers to do the task I am asking below. Use your own way.
    • For this HW, we will use Polish companies bankruptcy data Data Set from UCI Machine Learning Repository. Download the dataset and put the 4th year file (4year.arff) in your YOUR_GITHUB_ID/PHBS_MLF_2021/data/
    • I did a basic process of the data (loading to dataframe and creating bankruptcy column). See my github
    • We are going to use the following 4 features: X1 net profit / total assets, X2 total liabilities / total assets, X7 EBIT / total assets, X10 equity / total assets, and class
    • Create a new dataframe with only 4 feataures (and and Bankruptcy). Properly rename the columns to X1, X2, X7, and X10
    • Fill-in the missing values (nan) with the column means. (Use pd.fillna() or See Ch 4 of PML)
    • Find the mean and std of the 4 features among all, bankrupt and still-operating companies (3 groups).
    • How many companies satisfy the condition, X1 < mean(X1) - stdev(X1) AND X10 < mean(X10) - std(X10)?
    • What is the ratio of the bankrupted companies among the sub-groups above?
  • Set 2: [Classifiers] [Due by 10.11 Monday]

    • The goal of this HW is to be familiar with the basic classifiers PML Ch 3.
    • For this HW, we continue to use Polish companies bankruptcy data Data Set from UCI Machine Learning Repository. Download the dataset and put the 4th year file (4year.arff) in your YOUR_GITHUB_ID/PHBS_MLF_2021/HW2/
    • I did a basic process of the data (loading to dataframe, creating bankruptcy column, changing column names, filling-in na values, training-vs-test split, standardizatino, etc). See my github
    • Select the 2 most important features using LogisticRegression with L1 penalty. (Adjust C until you see 2 features)
    • Using the 2 selected features, apply LR / SVM / decision tree. Try your own hyperparameters (C, gamma, tree depth, etc) to maximize the prediction accuracy. (Just try several values. You don't need to show your answer is the maximum.)
    • Visualize your classifiers using the plot_decision_regions function from PML Ch. 3
    • Put your result in YOUR_GITHUB_ID/PHBS_MLF_2021/HW2/Classifiers.ipynb
  • Set 3: [PCA/Hyperparameter/CV] [Due TBA]

    • The goal of this HW is to be familiar with PCA (feature extraction), grid search, pipeline, etc.
    • For this HW, we continue to use Polish companies bankruptcy data Data Set from UCI Machine Learning Repository. Download the dataset and put the 4th year file (4year.arff) in your YOUR_GITHUB_ID/PHBS_MLF_2021/HW3/
    • Use the same pre-precessing provided in Set 2 (loading to dataframe, creating bankruptcy column, changing column names, filling-in na values, training-vs-test split, standardizatino, etc). See my github
    • Extract 3 features using PCA method.
    • Using the selected features from above, we are going to apply LR / SVM / decision tree.
    • Implement the methods using pipeline. (PML p185)
    • Use grid search for finding optimal hyperparameters. (PML p199). In the search, apply 10-fold cross-validation.

Syllabus

Classes:

  • Lectures: Monday & Thursday 1:30 – 3:20 PM
  • Venue: PHBS Building, Room 231

Instructor: Jaehyuk Choi

Teaching Assistance: 商陈诚 (Shang Chencheng)

Course overview

With the advent of computation power and big data, machine learning (ML) recently became one of the most spotlighted research field in industry and academia. This course provides a broad introduction to ML in theoretical and practical perspectives. Through this course, students will learn the intuition and implementation behind the popular ML methods and gain hands-on experience of using ML software packages such as SK-learn and Tensorflow. This course will also explore the possibility of applying ML to finance and business. Each student is required to complete a final course project. This year, the compliance analytics team in HSBC bank (Gunagzhou) will give 2 guest lectures to demonstrate how ML is developed and shared in banking industry.

Prerequisites

This course assumes prior knowkedge in probability/statistics and experience in Python. This course is ideally recommended for those who have taken introductory ML/AI courses from undergraduate program.

Textbooks and Reading Materials

Primary textbook

  • PML (primary textbook): Python Machine Learning 3rd Ed. by Sebastian Raschka.

Other books and online courses

Assessment / Grading Details

  • Attendance 20%, Mid-term exam 30%, Assignments 20%, Course Project 30%
  • Attendance: TBA Randomly checked. The score is calculated as 20 – 2x(#of absence). Leave request should be made 24 hours before with supporting documents, except for emergency. Job interview/internship cannot be a valid reason for leave.
  • Mid-term exam: 4.7 Tues. In-class open-book without computer/phone/calculator
  • Course project: Data Proposal and Presentation. Group of up to ?? people.
  • Attendance: checked randomly. The score is calculated as 20 – 2x(#of absence). Leave request should be made 24 hours before with supporting documents, except for emergency. Job interview/internship cannot be a valid reason for leave
  • Grade in letters (e.g., A+, A-, ... ,D+, D, F). A- or above < 30% and B- or below > 10%.

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Machine Learning for Finance: 2019-20 Module 3 (Spring 2020)

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