probml / probml/dynamax

inputs to ARHMM

Open
#419 0 comments 0 reactions 0 assignees View on GitHub

Nobody has claimed this yet.

Dominant language
Python
Stars
1k
Forks
114
Avg merge
19h 14m
Merged PRs (30d)
1

Description

  1. When I fit ARHMM, should I explicitly provide the inputs (lagged emissions), or can I omit this argument, and the model creates this from the emissions?

arhmm = LinearAutoregressiveHMM(num_states, emission_dim, num_lags=num_lags)
fitted_params, lps = arhmm.fit_em(params, props, emissions, inputs=inputs)

  1. For a lag > 1, is there a special consideration of how the emissions and/or inputs should be arranged?
  2. Can I use ARHMM with exogenous inputs?

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by inspecting LinearAutoregressiveHMM and its fit_em call to determine how inputs are handled. Document whether inputs can be omitted, how emissions and inputs should be arranged for num_lags greater than one, and whether exogenous inputs are supported.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
machine-learning
Issue type
Documentation
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
35/100

Get new issues in your inbox

A short digest of beginner-friendly GitHub issues.