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Welcome to the 2025 GIS/Valuation Technologies Conference, taking place in Columbus, Ohio, March 3-6, 2025! This is where you review the comprehensive educational program for the conference and plan your agenda.

The Geospatial Professional Network (formerly URISA) and the International Association of Assessing Officers are once again pleased to co-host this important event. Attendees earn ample IAAO CE credits and GISP Education points.

More education! Attendees requested more workshops - the opportunity to dive deeper into important topics. So we have included four half-day workshops to the conference on Thursday afternoon. Be sure to check them out and plan accordingly!

Go to this page to register for the conference and make travel plans and review sponsor and exhibit packages. Take note of early bird discounts through January 6!
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Valuation Unchained: Machine Learning’s New Neighborhood
Tuesday March 4, 2025 10:30am - 12:00pm EST
Pheoris West B– 3rd Floor
This session introduces a novel method to improve location adjustments using a machine learning methodology and explores the creation of neighborhood boundaries by examining how these boundaries might impact mass valuation models.

  • Enhancing Property Location Adjustments Using Spatial Interpolation
    Daniel Fasteen, Ph.D., Senior Data Scientist, Tyler Technologies, Rosemount, MN
  • What’s New in the Neighborhood?
    Russ Thimgan, President, Thimgan & Associates, Goodyear, AZ
    Leah Thimgan, Operations Director, Thimgan & Associates, LaJunta 
Moderators
TS

Thomas Swingle

Deputy Assessor, Adams County
Speakers
avatar for Daniel Fasteen, PhD

Daniel Fasteen, PhD

Senior Research Scientist, Tyler Technologies
Daniel Fasteen, Ph.D. is a Senior Research Scientist with Tyler Technologies.  Since 2010, Daniel has worked various roles in both the private and local government sector as a CAMA manager, product manager, research scientist, and consultant focusing on GIS application, property... Read More →
avatar for Russ Thimgan

Russ Thimgan

President, Thimgan & Associates
Russ extended experience in the assessment field, coupled with involvement in Ad Valorem Taxation since 1988, makes him a valuable asset in determining assessment needs. With an Economics degree, he is an expert in mass appraisal.His work with over 30 different jurisdictions and lending... Read More →
avatar for Leah Thimgan

Leah Thimgan

Operations Director, Thimgan & Associates
Tuesday March 4, 2025 10:30am - 12:00pm EST
Pheoris West B– 3rd Floor
  MODELING & VALUATION

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