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Add IAAO, ChiHack, and Harris talk pdfs#48

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Add IAAO, ChiHack, and Harris talk pdfs#48
ccao-jardine wants to merge 3 commits into
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add-iaao-chicago-pdfs

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@ccao-jardine ccao-jardine commented Jun 18, 2026

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Quick PR adding IAAO, Chi Hack, and Harris talk pdfs to /presentations and updating the readme.

@ccao-jardine ccao-jardine linked an issue Jun 18, 2026 that may be closed by this pull request
adds talk pdfs to readme, and minor link cleanup
@ccao-jardine ccao-jardine marked this pull request as ready for review June 18, 2026 20:01
@ccao-jardine ccao-jardine requested a review from a team as a code owner June 18, 2026 20:01

@jeancochrane jeancochrane left a comment

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New text and links look good! Looks like there are two Markdown linter checks failing, one having to do with table alignment and the other having to do with descriptive link text. The descriptive link text issue appears unrelated to your changes, but the table alignment checks are referring to lines you've changed. You can either make changes to resolve these linter errors or we can disable the linter as we do in data-architecture; I don't feel super strongly about which approach to take, though it seems pretty easy to resolve these particular linter errors, so I would lean towards resolving them rather than disabling them.

Comment thread README.md Outdated
| Date | Title | Topics | Video | Slides |
|------------|--------------------------------------------------------------------------------------------------|-------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------|
| 2025/04/02 | Cook County Permit Data | permits, data engineering, open data | [YouTube](https://www.youtube.com/live/lc3s_jBTAIg?si=dRbZafrg9ncfrWVf&t=3100) | [PDF](https://github.com/ccao-data/public/blob/add-mid-talk/presentations/2025-04-02_Data_MID2025_Permits.pdf) |
| 2025/01/21 | Generating 1.9 Million HTML Pages to Explain How the Cook County Assessor’s Statistical Model Assessed Your Home @ Chi Hack | transparency, data science, software engineering | [ChiHack](https://chihacknight.org/events/2025/10/14/ccao) | [PDF](https://github.com/ccao-data/public/raw/main/presentations/2025-10-14_ChiHack_HomeVal.pdf) |

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[Question, non-blocking] It seems like the date is listed as Jan 21, 2025 in the Date column, but Chi Hack (and the PDF filename) lists the event as being on 10/14. Which date is right?

Comment thread README.md Outdated
| 2025/01/21 | Property Values, Assessment, and Taxation @ Harris Policy Innovation Challenge | transparency, property taxes, open data | | [PDF](https://github.com/ccao-data/public/raw/main/presentations/2025-01-21_HarrisPolicyInnovationChallenge_Data.pdf) |
| 2024/12/04 | New statistical methods for assessment accuracy and transparency @ IAAO Research Symposium | iaao, sales validation, data science | | [PDF](https://github.com/ccao-data/public/raw/main/presentations/2024-12-04_IAAO-IRS_MeasuringImpact.pdf) |
| 2024/06/14 | Data science and engineering for property tax equity | data engineering, sales validation, dbt, Athena | | [PDF](https://github.com/ccao-data/public/raw/main/presentations/2024-06-14_TTS-TechGuild.pdf) |
| 2024/04/08 | Measuring Impact: New statistical methods for assessment accuracy and transparency | iaao, sales validation, data science | | [PDF](https://github.com/ccao-data/public/raw/main/presentations/2024-08-08_IAAO4_MeasuringImpact.pdf) |

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[Question, non-blocking] Is there a logic behind the decision to tag some talks with the location of the talk, but not others? "New statistical methods for assessment accuracy and transparency" is tagged "@ IAAO Research Symposium", but this talk is not tagged as having taken place at IAAO. I don't feel particularly strongly either way, but it would be nice to be consistent.

@ccao-jardine ccao-jardine self-assigned this Jun 26, 2026
Fixes Chi Hack date typo, hopefully resolves table formatting errors, adds URL context, and switches absolute links to relative links because that was bothering me
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Add talks to Public Engagement

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