PHILADELPHIA - s4story -- Marketing and growth executive Patrick Diogenia has released a comprehensive public guide and interactive decision tool designed to help organizations choose an AI customer segmentation approach based on the business decision they need to make—not the novelty of the algorithm available.

The guide, AI Customer Segmentation: How to Choose the Right Model (and When AI Is Not the Answer), translates a graduate literature review developed at New Mexico State University into practical advice for marketers, product leaders, customer-experience teams and analysts. It compares rule-based and RFM segmentation, K-means, hierarchical clustering, Gaussian mixture and latent class models, DBSCAN, hybrid needs-based methods, text and explainable AI segmentation, deep representation learning, and supervised alternatives such as propensity and uplift modeling.

A companion interactive selector recommends a primary model, a simpler benchmark, minimum data requirements, a validation plan, and key risks. The browser-based tool runs without transmitting users' answers or requiring customer data.

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Diogenia's review synthesizes two broad reviews and recent empirical applications related to retail transactions, deep representation learning, online product reviews, and topic-based analysis. A systematic review of 172 customer segmentation studies identified 46 algorithms and 14 evaluation metrics, with K-means the most frequently used algorithm. Only seven studies, or 4.1 percent, used subject-matter experts to evaluate segment quality. The same review concluded that research often describes potential business benefits while offering comparatively little empirical evidence that those benefits materialize in organizational use.

A second review of 105 e-commerce publications found that RFM analysis and K-means remained common components of personalized customer targeting. More specialized studies showed how AI can add value by deriving segments from customer language and product features. Yet the evidence across the literature was generally stronger for generating segments than for proving improvements in business outcomes.

"The persistence of K-means is not evidence that marketing analytics stopped evolving," Diogenia said. "It is a reminder that interpretability, implementation cost and organizational trust are integral to model performance."

The guide recommends that organizations evaluate segmentation at five levels: statistical structure; stability across samples, modeling choices, and time; interpretability and distinctiveness; reachability and actionability; and incremental business impact. The article also identifies cases where segmentation may not be the right first tool. When an organization has historical outcomes and needs to select customers for a specific intervention, supervised propensity or uplift models may provide a more direct answer to the decision. When individual recommendations are feasible, next-best-action or recommender systems can preserve information that a fixed group label would discard.

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The current publication is a practitioner guide based on a literature review, not a peer-reviewed empirical study. Diogenia plans to develop a future working paper that will expand the theoretical synthesis, refine the model-choice framework, and propose field research comparing simple and complex segmentation methods on downstream business outcomes.

About Patrick Diogenia

Patrick Diogenia is a strategy, loyalty, and lifecycle marketing leader with more than two decades of experience across marketing, customer strategy, technology, and organizational leadership. At Comcast, he held senior management roles spanning omnichannel enablement, MarTech strategy, and product management. Prior to Comcast, he founded and led a boutique advertising agency and consultancy serving SMB and Fortune 1000 clients. He holds dual MBAs from Indiana University's Kelley School of Business and Alliance Manchester Business School (UK), and a bachelor's degree, summa cum laude, from the University of Pennsylvania. He is currently a graduate student in Communication Studies at New Mexico State University, where his research examines organizational judgment, leadership communication, customer strategy, employee selection, and the organizational dynamics and constraints facing small business owners and franchisees. The publication represents the author's analysis and does not imply endorsement by any university or employer.