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  2. Joint Probabilistic Data Association Filter - Wikipedia

    en.wikipedia.org/wiki/Joint_Probabilistic_Data...

    At each time, it maintains its estimate of the target state as the mean and covariance matrix of a multivariate normal distribution. However, unlike the PDAF, which is only meant for tracking a single target in the presence of false alarms and missed detections, the JPDAF can handle multiple target tracking scenarios.

  3. Pushdown automaton - Wikipedia

    en.wikipedia.org/wiki/Pushdown_automaton

    In the theory of computation, a branch of theoretical computer science, a pushdown automaton (PDA) is a type of automaton that employs a stack. Pushdown automata are used in theories about what can be computed by machines.

  4. Binary relation - Wikipedia

    en.wikipedia.org/wiki/Binary_relation

    The incidence matrix used in these geometrical contexts corresponds to the logical matrix used generally with binary relations. An incidence structure is a triple D = ( V , B , I ) {\displaystyle \mathbf {D} =(V,\mathbf {B} ,I)} where V {\displaystyle V} and B {\displaystyle \mathbf {B} } are any two disjoint sets and I {\displaystyle I} is a ...

  5. PDA - Wikipedia

    en.wikipedia.org/wiki/PDA

    Photodiode array, a type of detector; Pitch detection algorithm, to find the pitch of a signal; Polydiacetylenes, a family of conducting polymers; Predictive analytics, a form of business analytics; Pushdown automaton, in automata theory

  6. Relation (mathematics) - Wikipedia

    en.wikipedia.org/wiki/Relation_(mathematics)

    In the Boolean matrix representing R div, the element in line x, column y is "". As another example, define the relation R el on R by x R el y if x 2 + xy + y 2 = 1. The representation of R el as a 2D-plot obtains an ellipse, see right picture. Since R is not finite, neither a directed graph, nor a finite Boolean matrix, nor a Hasse diagram can ...

  7. Multiple correspondence analysis - Wikipedia

    en.wikipedia.org/wiki/Multiple_correspondence...

    The Burt table is the symmetric matrix of all two-way cross-tabulations between the categorical variables, and has an analogy to the covariance matrix of continuous variables. Analyzing the Burt table is a more natural generalization of simple correspondence analysis , and individuals or the means of groups of individuals can be added as ...

  8. Probabilistic data association filter - Wikipedia

    en.wikipedia.org/wiki/Probabilistic_data...

    Python: The PDAF and other data association methods are implemented in Stone-Soup. [4] A tutorial demonstrates how the algorithms can be used. [5] [6] References

  9. Kernel principal component analysis - Wikipedia

    en.wikipedia.org/wiki/Kernel_principal_component...

    which represents the inner product space (see Gramian matrix) of the otherwise intractable feature space. The dual form that arises in the creation of a kernel allows us to mathematically formulate a version of PCA in which we never actually solve the eigenvectors and eigenvalues of the covariance matrix in the Φ ( x ) {\displaystyle \Phi ...