Transforming Retail with Graph ML

Transforming Retail with Graph ML

How Graph-Based Machine Learning is Powering the Next Wave of Intelligent Retail Transformation


Client Overview

A leading global retail chain with over 2,000 stores across North America and Europe sought to modernize its customer insights and inventory management capabilities. Despite significant investments in data warehousing and BI tools, the retailer faced fragmented insights across sales, supply chain, and customer loyalty systems.


The Challenge

Traditional analytics and machine learning approaches focused on tabular relationships — customer → transaction → product — and failed to capture the complex network effects that drive modern retail behavior.

The retailer needed to:

  • Detect cross-store and cross-category purchase influences

  • Identify high-impact customers and assortments using network-level insights

  • Optimize inventory replenishment by understanding relational dependencies

  • Build a fraud detection and recommendation system resilient to sparse and evolving data


Our Approach

Tytan’s AI Innovation team introduced a Graph Machine Learning (Graph ML) framework that connected millions of customer, transaction, and product data points into a dynamic Knowledge Graph.

We used a multi-stage pipeline:

Graph Construction

  • Unified POS, CRM, and supply-chain datasets into a property graph (using Neo4j & Azure Cosmos DB Graph API)

  • Defined nodes: Customer, Product, Store, Transaction, Category, and Supplier

  • Created weighted edges based on behavioral and temporal correlations (e.g., “co-purchase within 7 days”, “shared store region”)

Feature Engineering with Graph Embeddings

  • Generated node embeddings using GraphSAGE and Node2Vec, capturing similarity and influence between entities

  • Combined traditional features (e.g., RFM scores) with structural features (e.g., PageRank, centrality)

Graph Neural Networks (GNN) for Prediction

  • Trained a Graph Attention Network (GAT) to predict cross-sell probability and next-best-offer recommendations

  • Used link prediction to uncover hidden associations between customers and products

Explainable Insights Layer

  • Visualized relationships through graph dashboards in Power BI and interactive knowledge maps for business users

  • Delivered explainability through SHAP and attention-based interpretability of GNN models


Outcomes

MetricBeforeAfter
Cross-sell Conversion Rate8%19% (+137%)
Stock-out Incidents14%< 5%
Marketing Spend ROI2.3×3.9×
Fraud Detection Precision78%92%
Time to Insight (weekly report cycle)3 days30 minutes

Key Innovation

Graph ML brought a relational understanding of data, moving beyond traditional row-column correlations to network intelligence.
This enabled:

  • Context-aware recommendations considering peers’ behaviors and item affinity

  • Early detection of demand cascades across store networks

  • Adaptive segmentation powered by community detection algorithms


Technology Stack

  • Data Layer: Azure Synapse + Databricks + Cosmos DB (Graph API)

  • Graph ML: PyTorch Geometric, DGL, Neo4j Graph Data Science Library

  • Visualization: Power BI with Graph Connectors, Streamlit for interactive insights

  • Deployment: Azure ML Pipelines + AKS for scalable GNN serving


Business Impact

The project evolved from a data science pilot into a strategic decision-intelligence platform, now influencing:

  • Store layout and product placement

  • Dynamic pricing recommendations

  • Targeted promotions and loyalty rewards

  • Supplier network optimization

The client now uses Graph ML as a core component of their retail AI operating model, driving millions in additional revenue and measurable customer retention improvements.


Quote from the Project Lead

“By connecting the dots through Graph ML, we helped the retailer see relationships that were always there — but invisible to traditional analytics. This network-first view is the foundation of truly intelligent retail.”

Henry Du, Chief Data Scientist, Tytan Technology Inc.


Looking Ahead

The next phase includes integrating real-time graph updates, temporal GNNs, and LLM-driven graph query generation — enabling business teams to ask questions in natural language and receive insights drawn directly from the knowledge graph.


Ready to Reimagine Retail?

If your business is sitting on years of disconnected data, Graph ML can connect it into actionable intelligence.
📩 Reach out to our AI & Data Science team at info@tytantech.com to explore how we can help transform your enterprise.

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