openrisk

openrisk , 26 days ago to Random stuff

Representing Matrices as JSON Objects: Part 2 - Sparse Matrices

In the first installment of this series we discussed the motivation behind representing and serializing matrices as JSON objects. In this second post we revisit the issue of matrix representations in JSON format for the special (but important) sub-category of matrices that are termed sparse.

https://www.openriskmanagement.com/representing-matrices-as-json-objects-part-2/

Illustrative code available here https://github.com/open-risk/matrix2json

#datascience
#json
#armadillo
#eigen

openrisk , 27 days ago to Random stuff

#EarthDay is an annual event on April 22 to demonstrate support for environmental protection. We honor this occasion releasing a new Open Risk Academy #datascience course that provides an introduction to the #Copernicus Satellite Data Ecosystem. The course should be a useful first reading for anybody who wants to get involved in using Copernicus data but has no prior experience.

#opendata
#opensource
#sustainablefinance

https://www.openriskacademy.com/course/view.php?id=75

openrisk , 2 months ago to Random stuff

How will #opensource and Open Education coevolve?

will #Python popularity change open source education?

What is the endgame of gamification? Is #godotengine the ultimate educational platform?

#Moodle is practically synonymous with open source elearning? Are #LLM's its future?

Can #activitypub decentralized social media act as education powerhouses?

Come and join the brainstorming and speculation at the #openriskacademy

https://www.openriskacademy.com/course/view.php?id=74

#oeweek24

openrisk , 2 months ago to Random stuff

In this post we are after a flexible financial services taxonomy that can help us understand both existing and evolving financial system developments (#fintech,
#sustainablefinance). To this end we examine a range of existing classification systems (spanning the range from regulatory schemes to official statistics) and synthesize the salient requirements. We discuss in particular the concept of a faceted taxonomy and how it can help.

#opensource
#riskmanagement

https://www.openriskmanagement.com/towards-a-faceted-taxonomy-of-financial-services/

openrisk , 2 months ago to Random stuff

"When a measure becomes a target, it ceases to be a good measure" (Goodhart’s Law, alternatively: "Any observed statistical regularity will tend to collapse once pressure is placed upon it for control purposes")

Inevitably #xkcd asks whether there is a metric to identify vulnerable metrics 🙂

#openriskmanual

https://www.openriskmanual.org/wiki/Goodhart%E2%80%99s_Law

https://xkcd.com/2899/

openrisk , 2 months ago to Random stuff

Do you know of any #opensource or #opendata projects that target #financialinclusion and/or #financialliteracy?

Help us complete the awesome #sustainablefinance list with projects that focus on the "S" of ESG: the social dimension of finance.

If you have a github account you can directly contribute there, otherwise you can simply point here to an online link with code or data.

https://github.com/open-risk/awesome-sustainable-finance

openrisk , 3 months ago to Random stuff

A new short course on Input-Output economic analysis focuses on stylized interactive calculations that can be performed directly within the online course sections.

The level of the course is introductory. There are no mathematical or computer science prerequisites. It should be useful for anybody wishing to obtain basic insights into the flow calculations behind modern large scale Environmentally Extended Input-Output Models.

#openriskacademy
#sustainablefinance

https://www.openriskacademy.com/course/view.php?id=73

Leontief Inverse Matrix
Final Input-Output System
Initial Input Output System

openrisk , 5 months ago to Random stuff

What Inka Quipus teach us about data management

• Lesson 1: Without #metadata, your records will not make it into history

• Lesson 2: Human readable encoding is advantageous

• Lesson 3: A document store is more flexible than a classic #relationaldatabase

• Lesson 4: There is ancient logic to append-only databases

#datascience
#sustainablefinance

https://www.openriskmanagement.com/what-inka-quipus-teach-us-about-data-management/

openrisk , 5 months ago to Random stuff

#OpenSource Core Banking is the provision of a range of basic (core) banking services using Open Source Financial Software and / or based on open standards and API's.

While there is no formal definition of what constitutes core banking, core banking functions typically include payments, current accounts, deposits and loans

#openriskmanual
#corebanking

https://www.openriskmanual.org/wiki/Open_Source_Core_Banking

openrisk , 6 months ago to Random stuff

The economy is a complex tangle of various agents that interact via transactions (sales and purchases) and contracts (lending, investing).

In a post titled "Input-Output Models as Graph Networks" we discuss the relation of economic input-output models with graph theory and networks

#graphtheory
#economicnetworks
#sustainablefinance

https://www.openriskmanagement.com/input-output-models-as-graph-networks/

openrisk , 6 months ago to Random stuff

Articles about Concepts and Methods of the US Input-Output Accounts (K.J.Horowitz, M.A.Planting, 2009)

#openriskmanual
#sustainablefinance

https://www.openriskmanual.org/wiki/Category:BEA-IO

openrisk , 6 months ago to Random stuff

Open Risk Academy Course DAT31071

• Brief Description: This course is a DeepDive into using the Eigen C++ Library to perform Tensor calculations.

• Course Link: https://www.openriskacademy.com/course/view.php?id=71

• Github Link: https://github.com/Open-Risk-Academy/Academy-Course-DAT31071

#openriskacademy
#openriskmanual
#eigen
#tensorflow
#cpp

openrisk , 6 months ago to Random stuff

The "Four Eyes Principle" (sometimes also termed the "two-person rule") is a widely used internal control mechanism that requires that any activity by an individual within the organization that involves a material risk profile must be controlled (reviewed, double checked etc.) by a second individual that is independent and competent.

The principle generalizes in requiring separate reviews by independent teams.

#riskmanagement
#openriskmanual

https://www.openriskmanual.org/wiki/Four_Eyes_Principle

openrisk , 7 months ago to Random stuff

List of Commonly Conflated Financial Terms

In this blog post we discuss a number of financial terms whose precise meaning is frequently intentionally or unintentionally obscured. As a result those terms may, like a Rorschach Blot, mean different things to different people. Unlike this famous psychological test, ambiguity in weighty financial matters can have adverse consequences.

#riskmanagement
#financialliteracy

https://www.openriskmanagement.com/list-of-commonly-conflated-financial-terms/

openrisk , 7 months ago to Random stuff

Interested in the overlap of #opensource and #sustainablefinance? 🖖

October is the month of #hacktoberfest and a easy way to contribute / participate is to help us complete the awesome sustainable finance list 💚

The project aims to document all efforts (code, open data) that make a difference in this rapidly evolving space 🚀

Add your contribution here:

https://github.com/open-risk/awesome-sustainable-finance

openrisk , 7 months ago to Random stuff

The #glossary of #sustainablefinance collects and documents the growing number of acronyms, initiatives, concepts and tools that fall under the category "sustainable finance"

https://www.openriskmanual.org/wiki/Glossary_of_Sustainable_Finance

openrisk , 7 months ago to Sustainability

Awesome Sustainable Finance is
a curated list of #sustainablefinance resources.

The focus of the list is on code (tools, libraries, frameworks etc.) that fairly directly support any type of sustainable finance effort and open data that are useful in a sustainable finance context.

Contributions and pointers to additional resources are welcome

repo: https://github.com/open-risk/awesome-sustainable-finance

#climatechange
#sustainability