icecube/skyllh

add von Mises-Fisher as possible spatial pdf

Open

#92 opened on Jan 28, 2022

View on GitHub
 (0 comments) (0 reactions) (0 assignees)Python (5 forks)auto 404
enhancementgood first issue

Repository metrics

Stars
 (14 stars)
PR merge metrics
 (PR metrics pending)

Description

https://en.wikipedia.org/wiki/Von_Mises%E2%80%93Fisher_distribution This is needed for datasets that typically have large angular errors.

hint: a numerically stable approximation exists Screenshot from 2022-01-27 19-42-10

Contributor guide

Research direction
Implement the von Mises Fisher distribution as a spatial pdf using the numerically stable approximation provided in the hint. Refer to the Wikipedia article for the mathematical definition and ensure correct normalization for spherical data.
Tech stack
python
Domain
databackend
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Fresh
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
Pythonstatistics
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
60