yzhao062/pyod

Add optimal bin choice to LODA

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#189 opened on May 10, 2020

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 (4 comments) (0 reactions) (0 assignees)Python (7,762 stars) (1,308 forks)batch import
help wanted

Description

The LODA paper describes an optimal method for choosing the number bins. It would be great to include that as a n_bins='auto' method.

Contributor guide

Tech stack
python
Domain
datamachine learning
Issue type
feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-2 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
stale
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
clear
Prerequisites
PythonpyodLODApaper reading
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
30
Research direction
First, read the LODA paper (referenced in the issue) to understand the optimal bin selection method. Then, examine the current LODA implementation in pyod/models/loda.py, specifically the parameter handling for n bins. Implement the 'auto' option by adding code that computes the optimal number of bins based on the data. Finally, add tests to verify correctness and update documentation.