Taxlifier: Hierarchical Multi-label Classification in Radiographs

Discover how Taxlifier improves thoracic disease classification in radiographs by up to 24% using hierarchical taxonomy. Precision, AUC, and F1

miércoles, 8 de julio de 2026 • 2 min read • Q2BSTUDIO Team

Classification of thoracic diseases with hierarchical taxonomy

The automatic interpretation of chest radiographs represents one of the greatest challenges in computer-aided diagnosis. The coexistence of multiple thoracic pathologies with overlapping visual manifestations requires classification models that go beyond simple binary labeling. In this context, Taxlifier emerges, a hierarchical multi-label classification approach that leverages ontological relationships between diseases to improve the accuracy and interpretability of diagnostic support systems.

Unlike traditional flat classifiers, Taxlifier integrates the pathology taxonomy directly into the learning process. This is achieved through two complementary mechanisms: on one hand, a loss function that penalizes errors according to the known hierarchy, and on the other, an adjustment of predicted probabilities based on the parent class within the disease tree. This design not only increases accuracy —with reported improvements of up to 12% in precision and 24% in F1— but also produces more clinically coherent outputs, facilitating decision-making in hospital environments.

The practical implementation of a system like Taxlifier requires a solid technological infrastructure and expertise in artificial intelligence. At Q2BSTUDIO we develop custom applications and custom software for the healthcare sector, integrating AI models for companies that are deployed securely and scalably. Our AWS and Azure cloud services ensure the processing of large volumes of images, while cybersecurity solutions protect sensitive patient data. Additionally, we combine the power of AI agents with Power BI dashboards so clinical teams can interpret results visually and efficiently.

Hierarchical multi-label classification is not just a technical improvement; it represents a paradigm shift towards systems more aligned with medical reasoning. By structuring knowledge explicitly, ambiguity is reduced and prediction auditing is facilitated. This type of advancement fits perfectly with our business intelligence services and diagnostic platform development, where transparency and customization are key. If your organization seeks to implement artificial intelligence solutions in radiology, at Q2BSTUDIO we can help you design and integrate a system that leverages the hierarchy of pathologies to obtain more robust and clinically relevant results.

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