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com.here.platform.location.core.mapmatching

TransitionProbabilityStrategy

trait TransitionProbabilityStrategy[O, V, T] extends AnyRef

Computes the transition probabilities and (optionally) additional transition data.

O

The type of an observation

V

The type of the elements for OnRoad results

T

The type of the transitions between candidates. This can be anything related to a transition, for example the path between OnRoad candidates

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  1. abstract def compute(currentObservation: O, currentCandidate: MatchResult[V], nextObservation: O, nextCandidates: IndexedSeq[MatchResult[V]]): (LogProbabilitySeq, Option[Seq[Option[T]]])

    Computes the transitions from a candidate generated from the current observation to all candidates generated from the next observation.

    Computes the transitions from a candidate generated from the current observation to all candidates generated from the next observation. For each transition, the transition probability is returned. May return additional transition data, for example the path between two OnRoad candidates. This data will be part of the MatchedPath returned by a PathMatcher.

    returns

    A pair composed of

    • The transition probabilities from currentCandidate to each element of nextCandidates
    • Optionally, additional transition data from currentCandidate to each element of nextCandidates

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