45 refactoring to log ratio regression #46
Closed
Conversation
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
added 2 commits
December 11, 2025 22:40
Infrastructure improvements for handling full-year data within 8GB container: Added: - scripts/process_csvs_batched_optimized.py: Batched CSV processing (5k files/batch) * Prevents OOM on 30k+ file datasets * Streams through data without full materialization * Tested on July 2023 (30,027 files) - tests/diagnose_bg_density_v2.py: Block-group sampling density diagnostic * Checks household density per block group * Validates cluster share variance * Provides recommendations for sample size Modified: - analysis/clustering/prepare_clustering_data_households.py: Multi-file input support * Accepts multiple parquet files via --input file1 file2 ... * Loads and merges manifests from all input files * Enables analysis on split datasets (e.g., jan_nov.parquet + dec.parquet) - .gitignore: Exclude generated Quarto HTML files This checkpoint precedes the Stage 2 regression refactor (multinomial logit → log-ratio regression).
Contributor
Author
|
Duplicate of #44, closing |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Methodology Update: Log-Ratio Regression on Block Group Composition
Summary
This PR refactors Stage 2 regression to use log-ratio regression instead of multinomial logistic regression, addressing feedback on the appropriate unit of analysis for demographic modeling.
What Changed
Previous Approach = Multinomial Logit
New Approach (Log-Ratio Regression)
Infrastructure Improvements (handling high-volume processing of the raw AWS CSVs)
Also includes memory-efficient processing improvements for large datasets: