# Signal Detection ## Definition **Signal Detection** is the inference problem of distinguishing a meaningful signal from noise under uncertainty and asymmetric error costs. In the host-infrastructure corpus, the term is used only at this level of abstraction; its presence in a relationship graph does not settle philosophical identity, authorize surveillance, or establish a corporate continuity program. ## Relationships **Related concepts:** [[wiki/Information Theory|Information Theory]] · [[wiki/Shannon Entropy|Shannon Entropy]] · [[wiki/Pattern Recognition|Pattern Recognition]] · [[wiki/Neural Signal Acquisition|Neural Signal Acquisition]] **Collections:** [[collections/Consciousness Continuity|Consciousness Continuity]] · [[collections/Neurotech|Neurotech]] · [[collections/Machine Succession|Machine Succession]] **Canonical source article:** [[articles/Mind Uploading and AI — The Host is Reusable and the Person is the Delta|Mind Uploading and AI — The Host is Reusable and the Person is the Delta]] **Relationship source:** [[research/Mind Uploading and AI Host-Residual Ecosystem Relationship Graph - 2026-09-10|Mind Uploading and AI Host-Residual Ecosystem Relationship Graph — 2026-09-10]] These links identify conceptual dependencies or contrasts. They do not imply ownership, institutional control, technology transfer, or empirical proof of consciousness continuity.