Technical

Working with Large Matrices using Command Line Tools

Reading Time: 3 min.

Working with Large Matrices using Command Line Tools

CLI Tools for Data Science

This course is an Open Risk Academy CrashCourse introduction to using Linux command line tools to work (in particular) with large text files encoding numerical data in matrix format. A central role is played by awk, the venerable UNIX pattern-matching language and tool.

An Introduction to the Copernicus Satellite Data Ecosystem

Reading Time: 2 min.

Copernicus

Course Content:

This course is an introduction the Copernicus Satellite Data Ecosystem. It covers the following topics:

  • Getting to know the Copernicus Programme
    • Overview of the Copernicus Programme
    • Further Resources
  • The Copernicus Data Ecosystem
    • Copernicus Data Resources
  • Tools and Resources
    • Platforms, Tools and API’s
  • A worked out example
    • Using the Python OpenEO API

Who Is This Course For:

Data Scientists / Data Engineers in any Domain that need to use satellite data

Crash Course on Input-Output Model Mathematics

Reading Time: 1 min.
Graphic

Summary

A brief review of the linear algebra and matrix theory concepts underpinning standard environmentally extended input-output models.

Content

This brief introduction in Input-Output Model mathematics discusses the basic elements of linear algebra that are necessary to understand the standard Input-Output models, including their Environmental impact extensions.

Matrix theory is the main subject covered here as it is the most dominant mathematical tool used in this area (though other parts of mathematics do find applications in Input-Output analysis). The focus is on the notation and mathematical objects commonly used, not the economic interpretation or any mathematical proofs.

Deep Dive Course on Tensor calculations with Eigen

Reading Time: 2 min.

Tensor

Course Content:

This course is an introduction to Tensor calculations with Eigen, a popular C++ library for working with numerical arrays and linear algebra. It covers the following topics:

  • We learn the concept and techniques of the Eigen Tensor class
  • How to declare, initialize Tensors of various ranks and types and how to access Tensor elements
  • Elementary unary and binary operations involving Tensors
  • More complex operations (reductions, contractions)
  • Modifying the shape of Tensors

Who Is This Course For:

Developers in any Domain that need to use higher-dimensional numerical data containers

Mathematical Representations of Credit Portfolio Data

Mathematical Representations of Credit Portfolio Data

What do we mean by credit data? This post is a discussion around mathematical terminology and concepts that are useful in the context of working with credit data, taking us from network graph representations of credit systems to commonly used reference data sets

Reading Time: 1 min.

Course Objective

Digging into the meaning of credit data collections, the logic that binds them together towards understanding what they can be used for and what limitations and issues they may be affected by, this new course in the Credit Portfolio Management category explores a new angle to look at an old practice.

Input-Output Models as Graph Networks

Input-Output Models as Graph Networks

We discuss the relation of economic input-output models with graph theory and networks

Reading Time: 1 min.

Course Objective

The objective of the course is to discuss the relation of economic input-output models with graph theory and networks.

An overview of graph methods in data science

Reading Time: 1 min.
Python is the swiss knife of modern programming languages and a prime candidate to be also the swiss knife for risk modelling

Summary

This course is a CrashProgram (short course) introducing the different ways in which the graph concept enters various data science applications. The course is at an introductory technical level. It requires comfort with mathematical notation and (optionally) ability to run the provided python code with various graph examples. Reviewing the very diverse uses of graph structures will reveal the richness of graphs as data science tools.

21 Ways to Visualize a Timeseries

Reading Time: 3 min.

What this course is about (and what it isn’t)

With the ever more widespread adoption of Data Science tools (defined loosely as the intensive use of data in decision-making), there is strong interest in Visualization as an effective means for humans to understand information at various stages of the data lifecycle.

There is a large variety of open source data visualization tools which can produce an ever more bewildering variety of visualization types:

Intro to Concentration Measurement using Python

Reading Time: 1 min.
Python is the swiss knife of modern programming languages and a prime candidate to be also the swiss knife for risk modelling

Summary

This course is a CrashProgram in the use of python for risk modelling purposes, in particular credit concentration measurement.

Who Is This Course For

There is little or no prior knowledge of concentration risk measurement but general background in credit risk management is useful for context.

Exploratory Risk Data Analysis

Reading Time: 1 min.
Exploratory Data Analysis Visualizations

Summary

This course is a CrashProgram (short course) introducing exploratory data analysis.

Prerequisites

The course can be pursued on a standalone basis. It is advisable to pursue the course after DAT31046 (Risk Data Review) which discusses a review of the data from a data quality validation perspective.

Getting Started with Open Source

Reading Time: 0 min.
Python is the swiss knife of modern programming languages and a prime candidate to be also the swiss knife for risk modelling

Summary

This course collects resources and activities to facilitate those involved in open source risk modelling projects.

Course Level and Type

Introductory Level Core Level Advanced Level
Non-Technical
Technical GEN13031

Enroll and Get Started with GEN13031

An introduction to Semantic Data with Python

Reading Time: 1 min.
Python is the swiss knife of modern programming languages and a prime candidate to be also the swiss knife for risk modelling

Summary

This course is a CrashProgram (short course) in the use of Python to work with Semantic Data (RDF / OWL)

Requirements

The course is at a medium technical level. It requires some familiarity with python (and a working installation). On the semantic data side it requires knowledge of basic concepts around files and representation formats for data.

Intro to GeoJSON

Reading Time: 1 min.
Geographical features on a map

Summary

This course is a CrashProgram (short course) introducing the GeoJSON specification for the encoding of geospatial features.

Course objectives

  • You will be able to confidently discuss the geojson standard
  • You will be able to dive into geojson related development projects with confidence

The course is live at the Open Risk Academy, this repository hosts the python scripts used in the course. The scripts can be used standalone but documentation is minimal.

Loan Level Templates Using Python

Reading Time: 0 min.
Python is the swiss knife of modern programming languages and a prime candidate to be also the swiss knife for risk modelling

Summary

This course is a CrashProgram in the use of python for credit portfolio modelling purposes, in particular working with data templates and spreadsheets.

Content

The course covers the following topics:

Credit Migrations using TransitionMatrix

Reading Time: 1 min.
Python is the swiss knife of modern programming languages and a prime candidate to be also the swiss knife for risk modelling

Summary

This course is a CrashProgram (short course) in the use of Python and the package TransitionMatrix for analysing credit migration data.

Requirements

The course is at a medium technical level. It requires some familiarity with python (and a working installation that includes the common numpy/scipy libraries). On the risk modelling side it requires knowledge of basic credit rating migration concepts.

Input-Output Models with Python

Reading Time: 1 min.
Graphic

Summary

This course is a DeepDive with nine segments, exploring Input-Output models using Python and the pymrio library. The course is at a core technical level. It requires working familiarity with Python, basic linear algebra and elements of economic systems. Step by step we explore how one can define and perform useful operations in Environmentally Extended Input-Output Analysis.

Credit Contagion

Reading Time: 0 min.

Summary

A Crash Course on Modelling Credit Contagion

Course Level and Type

Introductory Level Core Level Advanced Level
Non-Technical
Technical MCC03008

Enroll and Get Started with MCC03008

Discussion @ the Commons

Managing Loan Portfolios Using MongoDB

Reading Time: 1 min.
Python is the swiss knife of modern programming languages and a prime candidate to be also the swiss knife for risk modelling

Summary

This course is a CrashProgram in the use of the MongoDB database in conjunction with Python for credit portfolio management purposes.

Content

The course covers the following topics: