Cook County Assessor's Office

All

28 repositories

pinval
Public
Prototype PIN VALuation report
r reporting assessment propoerty-taxes
R
•0•0•15•0•Updated Aug 18, 2025Aug 18, 2025
data-architecture
Public
Codebase for CCAO data infrastructure construction and management
aws aws-s3 data-engineering aws-athena data-architecture
R
•4•6•78•4•Updated Aug 15, 2025Aug 15, 2025
model-res-avm
Public
Automated valuation model for all class 200 residential properties in Cook County (except vacant land and condos)
data-science machine-learning r model assessment res property-taxes tidymodels
R
•
GNU Affero General Public License v3.0
•10•45•27•4•Updated Aug 13, 2025Aug 13, 2025
ccao
Public
R package of functions and datasets used throughout the CCAO assessment pipeline
r assessment r-package taxes property-taxes
R
•
GNU Affero General Public License v3.0
•1•1•4•0•Updated Jun 26, 2025Jun 26, 2025
model-condo-avm
Public
Automated valuation model for all class 299 and 399 residential condominiums in Cook County
data-science machine-learning r model assessment condo property-taxes tidymodels
R
•
GNU Affero General Public License v3.0
•4•11•2•0•Updated Jun 6, 2025Jun 6, 2025
ptaxsim
Public
R package for estimating Cook County property tax bills
r research assessment r-package taxes property-taxes
R
•
GNU Affero General Public License v3.0
•4•17•18•2•Updated Jun 3, 2025Jun 3, 2025
actions
Public
GitHub Actions for CCAO Data projects
infrastructure ci github-actions gh-actions
0•0•9•0•Updated May 19, 2025May 19, 2025
wiki
Public
Handbook, how-tos, and other documentation
documentation wiki handbook
HTML
•1•5•12•0•Updated May 19, 2025May 19, 2025
public
Public
Entrypoint for public engagement with the CCAO Data Department
government documentation public engagement
R
•0•0•2•0•Updated May 15, 2025May 15, 2025
extract-permits
Public
Script and workflow for permit data extraction
python etl gh-actions
Python
•0•0•3•0•Updated Apr 15, 2025Apr 15, 2025
lightsnip
Public
Hard fork of curso-r/treesnip specifically for CCAO LightGBM regressions
machine-learning r lightgbm r-package
R
•
GNU Affero General Public License v3.0
•0•2•2•1•Updated Mar 10, 2025Mar 10, 2025
assessr
Public
R package for measuring assessment performance
r assessment r-package taxes property-taxes
R
•
GNU Affero General Public License v3.0
•2•7•1•1•Updated Mar 10, 2025Mar 10, 2025
service-spark-iasworld
Public
Service for extracting tables from the CCAO system-of-record and uploading them to the Data Department's data warehouse
spark etl iasworld
Python
•
GNU Affero General Public License v3.0
•0•0•2•0•Updated Mar 10, 2025Mar 10, 2025
people
Public
Onboarding/offboarding, training materials, and other administrative stuff
documentation people
0•0•2•0•Updated Mar 10, 2025Mar 10, 2025
assesspy
Public
Python package for measuring assessment performance
python assessment taxes python-package property-taxes
Python
•
GNU Affero General Public License v3.0
•0•2•1•0•Updated Feb 27, 2025Feb 27, 2025
model-sales-val
Public
Heuristics for detecting outlier and non-arms-length sales
python model aws-s3 aws-glue
Python
•
MIT License
•1•2•18•1•Updated Feb 21, 2025Feb 21, 2025
api-res-avm
Public
REST API for getting predicted values from the CCAO's residential model
api docker r service rest-api
R
•0•0•2•0•Updated Feb 14, 2025Feb 14, 2025
service-sqoop-iasworld
Public archive
Service to continually import iasWorld backend data to Parquet using Apache Sqoop
shell docker hadoop service sqoop
Shell
•0•0•0•0•Updated Aug 9, 2024Aug 9, 2024
service-nginx
Public
Reverse proxy that directs traffic to CCAO applications
config nginx service
0•0•0•0•Updated Apr 22, 2024Apr 22, 2024
.github
Public
Source for org-level README
readme documentation readme-organization
0•0•0•0•Updated Oct 18, 2023Oct 18, 2023
report-model-benchmark
Public
Benchmark of timing for CCAO models on different hardware
data-science benchmark r xgboost lightgbm
R
•0•1•0•0•Updated Oct 6, 2023Oct 6, 2023
app-shiny-rpie
Public archive
Shiny application for internal RPIE reporting and code retrieval
docker app utility r shiny
R
•
GNU Affero General Public License v3.0
•0•0•0•0•Updated Sep 28, 2023Sep 28, 2023
report-template
Public template
Template repository for CCAO reports that require their own repo
r assessment report
0•0•1•0•Updated Aug 31, 2023Aug 31, 2023
service-watchtower
Public
Service to monitor the CCAO registry and automatically pull new Docker images
config docker service
0•0•0•0•Updated Jul 28, 2023Jul 28, 2023
service-shiny-proxy
Public
ShinyProxy-based backend for launching CCAO Shiny applications
docker r service shiny
Dockerfile
•
GNU Affero General Public License v3.0
•0•1•0•0•Updated Jul 27, 2023Jul 27, 2023
app-shiny-rpie-dashboard
Public archive
Shiny dashboard for analysts to consume aggregated RPIE data
docker app r dashboard shiny data-visualization
R
•
GNU Affero General Public License v3.0
•0•0•0•0•Updated Jul 26, 2023Jul 26, 2023
ptax-explainer
Public
Short experimental PIN-level explainer of the Cook County property tax system
r taxes explainer property-taxes
HTML
•2•0•1•0•Updated Jul 12, 2023Jul 12, 2023
service-jupyterhub
Public
Config files for internal JupyterHub instance
config jupyter service
Python
•0•0•0•0•Updated Jul 5, 2023Jul 5, 2023