non-deterministic

Not uniquely determined

Non-deterministic describes a process or system whose outcome cannot be predicted from its inputs alone—the same starting conditions may produce different results each time.

In computing, a non-deterministic algorithm might take different paths to solve a problem: The program's non-deterministic behavior made debugging difficult.

The term contrasts with deterministic, where identical inputs always yield identical outputs.

probability

randomness

Lack of predictable pattern

chance · aleatory · randomized · sampling · distribution · likelihood · uncertainty · statistical · noise · variance

quantum

superposition

Coexisting in multiple states

collapse · Heisenberg · observer effect · quantum computing · qubit · decoherence · indeterminacy · Copenhagen interpretation · Schrödinger · quantum state

computation

algorithm

Finite problem-solving procedure

parallelism · concurrency · oracle · transition · backtracking · verification · decidability · computability · reduction · tractable

systems

race condition

Outcome depends on timing

timing · synchronization · deadlock · interleaving · scheduling · distributed · latency · semaphore · arbitration

chaos

butterfly effect

Small inputs, disproportionate results

sensitivity · unpredictability · nonlinearity · perturbation · feedback loops · cascades · emergence · self-organization · fractals · initial conditions

Opposites
predictability from state

non-deterministicdeterministic

Completely caused by prior conditions

predictable · determined · predetermined · computable · decidable

randomness vs order

non-deterministicdeterministic

Completely caused by prior conditions

ordered · consistent · invariant · reproducible · repeatable

philosophical causation

non-deterministicdeterministic

Completely caused by prior conditions

determinism · fatalistic · necessitated · predestined · fated

Family

deterministic, determine, determined, determining, determines, determiner, determiners, determination, determinate

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