IAAO Research Exchange
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Enhancing ratio studies with AI: Identifying sources of inequity with SHAP values
No full textThis session will explore how machine learning and SHAP (Shapley Additive Explanations) values can be powerful tools in identifying and addressing inequities in property valuations. SHAP values, originally developed to explain complex model predictions, can be adapted to examine sales ratios and other property characteristics, helping pinpoint both vertical and horizontal inequities. This approach provides a clear understanding of which factors contribute to disparities, offering actionable insights to improve fairness in valuations. By incorporating SHAP values, assessors can not only make valuations more equitable but also save time and money by reducing the need for extensive manual analysis and rework. The transparency offered by SHAP helps identify inequities early on, preventing future issues and streamlining the assessment process. The session will cover practical examples in R and Python, guide you through interpreting results, and highlight potential challenges to be aware of. This session is aimed at professionals who want to leverage AI to make their valuations more accurate and efficient, ultimately reducing the burden of time, costs, and complications while improving equity in the process
Support cyclical reassessments with street level imagery
No full textMany local governments assessment offices rely on technology initiatives that optimize management of properties, assets, and infrastructure. High resolution street level imagery, mobile LiDAR, and software tools can enable jurisdictions to move towards more efficient 3D asset data collection and data-driven operations. In this session, we will showcase how the Clark Co OH Auditor\u27s office is using street level imagery and LiDAR resources to support their property assessment and other county enterprise operations
Peeking behind the curtain: How GIS empowers transparency in Cuyahoga County\u27s reappraisal
No full textCuyahoga County\u27s recent sexennial reappraisal marked a notable advancement in public access to information. The Cuyahoga County Reappraisal GIS Resource Page and the Sales Finder application, developed through GIS technology, provided residents with enhanced tools to understand property valuations. While there is room for further improvement, these resources represent a significant step forward in fostering transparency and public engagement in the reappraisal process. By empowering residents with data-driven insights, these tools have contributed to a more informed and equitable reappraisal process
The Great Assessment Revolution: Navigating Crisis and Opportunity in 2025
No full textJoin us for an in-depth exploration of Tyler’s 2025 Industry Survey Insights: Identifying Challenges & Solutions in Property Assessment where we will discuss recent survey results from industry leaders. Offering valuable insights and actionable strategies that address common problems, build office capacity, and reduce pain points, don\u27t miss this opportunity to gain a comprehensive understanding of the latest trends and solutions
The Netherlands study into discrepancies between assessed values and market prices
No full textThe presentation covers the Dutch property tax system, the research project examining if residential assessments are on market level, results, conclusions, and next steps
AI That Works: How Eagleview Is Helping Assessors Recover Revenue and Reduce Fieldwork
No full textIn this session, Eagleview will walk you through how high-resolution 1-inch imagery provides the pixel-level foundation for the most accurate, AI-powered assessment workflows available. You’ll see how assessors across the country are already using Eagleview’s solutions, including ChangeFinder for detecting unreported changes, Sketch Inspect for correcting CAMA discrepancies, and upcoming tools for land classification and geospatial insights to recover millions in lost revenue and reduce time in the field.
We’ll cover: Why 1-inch GSD imagery gives AI the clarity it needs to deliver trusted results How Eagleview has used AI for over a decade to support assessors Real examples of jurisdictions that have added $35M+ in value to the roll Key findings from our 2025 AI Adoption Survey: see how you compare to your peers What’s coming next from Eagleview and how you can prepare your office for it
Whether you’re just starting to explore AI or already deploying it at scale, we’ll show you how to make imagery and automation work for your team and your tax roll
Valuing Senior Housing Real Estate without Allocation
No full textThis presentation explores a practical and USPAP-compliant approach to valuing the real property component of senior housing by analyzing it from a triple net lease perspective. It critiques the commonly used allocation method, highlighting its conceptual and competency pitfalls, and offers a more defensible alternative rooted in real estate valuation principles
Smart Rutherford: Revolutionizing Citizen Engagement with OpenAI-Powered Virtual Assistance
No full textDiscover Smart Rutherford, an OpenAI-powered virtual assistant that enhances citizen engagement by providing seamless access to property and public information. With real-time updates, personalized AI-driven interactions, and paperless processes, it streamlines government communication– improving efficiency, transparency, and user satisfaction for diverse communities
Mass Valuation in the Digital Age: How Serbia Overcame Challenges with AI and Innovation
No full textDigital transformation is reshaping mass valuation in Serbia, presenting both hurdles and opportunities. Join us as we explore how cutting-edge technology, AI, and global best practices are revolutionizing real estate market information, model accuracy, and data quality, enabling more efficient market analyses in uncertain economic times