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25 guides on Vector.
What is a Semantic Layer? Definition, Examples, Spatial Rules
A semantic layer defines business terms and metrics once, so every tool gives the same answer. For location data it must also set the boundary, the distance and what counts as inside.
What is a Geofence? How Geofencing Works, With Examples
A geofence is a virtual boundary that triggers an action when a device enters or leaves it. How geofencing works, its uses and limits, and a test on ship data.
What is Map Matching? GPS Traces, Methods and Examples
Map matching places each GPS record on the road a vehicle drove. How it works, nearest-road snapping vs hidden Markov models, and a test on Ann Arbor drives.
Geospatial Big Data: Why Analytics Is Hard to Scale
Teams struggle to scale geospatial analytics for five reasons: data volume, mixed formats, many coordinate systems, spatial joins and pipeline upkeep.
What is an Isochrone? Isochrone Maps and Travel Time
An isochrone is the area reachable from a place within a set travel time. How isochrones are computed, isochrone vs radius, and a King County test.
What is a Geospatial Database? Definition, Examples
A geospatial database stores geometry, indexes it by location and runs spatial SQL queries. The definition, examples, and how to choose one by workload.
What is a Map Projection? Types, Distortion, Examples
A map projection flattens the Earth onto a map and distorts area, shape, distance or direction. Projection types, examples, and how to choose one.
What is Geospatial Intelligence? GEOINT Defined, Examples
Geospatial intelligence (GEOINT) analyzes imagery and map data to describe activity on earth. Definition, history, examples, and a New Orleans walkthrough.
What is a Context Engine? Why Physical World Data Needs One
A context engine is the system that computes, stores, and serves the context AI models and agents receive. How it works, examples, and why physical world data needs one that computes spatial relations.
What Is the Partitioning Tax? Tiles, Seams, and Reruns
The partitioning tax is the cost of splitting spatial data into tiles when it outgrows one machine: tile loops, seam errors at tile edges, and reruns. How it shows up and how distributed spatial engines remove it.
What is Context Engineering for Physical AI?
Context engineering is choosing what an AI model receives at each step. How it works, how it compares to RAG, and what changes when the context is real places.
What is an Ontology? Definition, Parts, Spatial Ontologies
An ontology is a formal model of the things in a domain and how they relate. Its parts, how it differs from a taxonomy or knowledge graph, and what makes one spatial.
