FTB-C000617 / Implementation concept

DBSCAN Border Point

DBSCAN Border Point is a non-core pivot that lies within a reachable core cluster.

Also known asborder pivot

Advanced 1 linked topicEvidence-reviewed

Definitions

In plain terms

A border point can join a level without having enough neighbors to start one.

Technical

Border membership follows density reachability from a core point even when the point's own neighborhood is smaller than min_touches.

Scope

Border membership must not be mislabeled as independent density confirmation.

Examples

  • A reviewer computes DBSCAN Border Point on a small deterministic fixture and checks timing, units, and boundary behavior before publication.

Common misconceptions

  • Border membership must not be mislabeled as independent density confirmation.

Concept relationships

Prerequisites

Related

Required by

Where this concept is used

Evidence and governance

  1. A Density-Based Algorithm for Discovering Clusters in Large Spatial Databases with Noise Ester, Kriegel, Sander, Xu · first party technical publication

    Supports: preferred label, short definition, technical definition

    Limits: The original paper is not about financial support or resistance; that application is a package design.

  2. sklearn.cluster.DBSCAN scikit-learn · first party technical publication

    Supports: preferred label, short definition, technical definition

    Limits: The package implements deterministic one-dimensional DBSCAN directly for Python/TypeScript parity.

  3. Pine Script pivot techniques TradingView · official platform documentation

    Supports: preferred label, short definition, technical definition

    Limits: The package freezes its own equality, separation, and OHLC policies rather than claiming one universal pivot definition.

  4. numpy.log NumPy · first party technical publication

    Supports: preferred label, short definition, technical definition

    Limits: A log transform requires positive finite prices and does not by itself define a financial level.

Reviewed by
fintech-builder-batch-011
Last reviewed
2026-08-09
Next review
2027-08-09
Record status
evidence reviewed

This record is evidence-reviewed and readable, but not yet promoted to published — it is served noindex,follow and excluded from the sitemap.

Written by

Fintech engineer building market-data and financial systems, and the author of every article, glossary record, and reference implementation on The Fintech Builder.