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Clustering is an important data exploration task. A prominent clustering algorithm is agglomerative hierarchical clustering. Roughly, in each iteration, it merges the closest pair of clusters. It was rst proposed way back in 1951, and since then there have been numerous mod-iications. Some of its good features are: a natural, simple, and non-parametric grouping of similar objects which is capab...

sense; the plot qua καθόλου is no particular play, but the general form of any number of dramas. The subsequent plot summary of Iphigenia among the Taurians (1455b3-12) confirms this sense of καθόλου as the form of the plot; Aristotle’s description excludes specific episodic details such as names and places, and is so concerned with the abstract organization of events that it even posits that t...

A classification system to detect congestive heart failure (CHF) patients from normal (N) patients is described. The classification procedure uses the k-nearest neighbor algorithm and uses features from the second-order difference plot (SODP) obtained from Holter monitor cardiac RR intervals. The classification system which employs a statistical procedure to obtain the final result gave a succe...

For an arbitrary homogeneous linear recurrence sequence of order d with constant coe cients, we derive recurrence relations for all subsequences with indices in arithmetic progression. The coe cients of these recurrences are given explicitly in terms of partial Bell polynomials that depend on at most d 1 terms of the generalized Lucas sequence associated with the given recurrence. We also provi...

This paper presents the development of an O(log 2 N) parallel algorithm for the manipulator inertia matrix. It is based on the most efficient serial algorithm which uses the composite rigid body method. Recursive doubling is used to reformulate the linear recurrence equations which are required to compute the diagonal elements of the matrix. It results in O(log 2 N) levels of computation. Compu...

Characterization for nonpremixed biodiesel/air jet flames instability is investigated by the 0-1 test for chaos and recurrence plots. Test conditions involve biodiesel from Jatropha curcas. Lfueled flames have inlet oil pressure of 0.2–0.6MPa, fuel flow rates Q1 of 15–30 kg/h, and combustion air flow rate Q2 of 150–750m3/h. This method is based on image analysis and nonlinear dynamics. Structur...

Care must be taken when interpreting the coefficients of dummy variables in semi-logarithmic regression models. Existing results in the literature provide the best unbiased estimator of the percentage change in the dependent variable, implied by the coefficient of a dummy variable, and of the variance of this estimator. We extend these results by establishing the exact sampling distribution of ...