We show how to employ leave-K-out cross-validation in Unsupervised Kernel Regression, a recent method for learning of nonlinear manifolds. We thereby generalize an already present regularization method, yielding more flexibility without additional computational cost. We demonstrate our method on both toy and real data.

Consider two multi-dimensional digital signals, each with Ns samples. For some number of lags N l Ns, the cost of computing a single cross-correlation function of these two signals is proportional to Ns × N l. By exploiting several properties of Gaussian windows, we can compute Ns local cross-correlation functions, again with computational cost proportional to Ns × N l. Here, local means the cr...

This paper proposes a high-accuracy rotation estimation algorithm using 1D Phase-Only Correlation (POC). In general, the rotation angle between two images is estimated as follows: (i) convert the image rotation into the image shift by polar mappings of the amplitude spectra of images, and (ii) estimate the translational displacement between the polar mappings to obtain the rotation angle. The p...

The cross-efficiency method, as a Data Envelopment Analysis (DEA) extension, calculates the cross efficiency of each decision making unit (DMU) using the weights of all decision making units (DMUs). The major advantage of the cross-efficiency method is that it can provide a complete ranking for all DMUs. In addition, the cross-efficiency method could eliminate unrealistic weight results. Howeve...

The operational performance of container ports has received more and more attentions in both academic and practitioner circles, the performance evaluation and process improvement of container ports have also been the focus of several studies. In this paper, Data Envelopment Analysis (DEA), an effective tool for relative efficiency assessment, is utilized for measuring the performances and bench...

OBJECTIVE To evaluate the efficiency of the Family Health Strategy in actions related to hypertension. METHODS Evaluative, cross-sectional quantitative research based on secondary data of 66 small municipalities located in the state of Santa Catarina, Southern Brazil, with maximum potential coverage of 100% by the Family Health Strategy in 2007. Input indicators, products and results were eva...

The Pareto-like tail of the size distribution of firms can arise from random growth of productivity or stochastic accumulation of capital. If the shocks that give rise to firm growth are perfectly correlated within a firm, then the growth rates of small and large firms are equally volatile, contrary to what is found in the data. If firm growth is the result of many independent shocks within a f...

In this paper we study the use of cross correlations between multiple gravitational wave (GW) data streams for detecting long-lived periodic signals. Cross-correlation searches between data from multiple detectors have traditionally been used to search for stochastic GW signals, but recently they have also been used in directed searches for periodic GWs. Here we further adapt the cross-correlat...

conclusion the use of ahp method can be promising for fostering the evaluation method and subsequently promotion of the efficiency and effectiveness of the radiology departments. the present model can fill in the gap in the accreditation system of the country’s hospitals in respect with ranking and comparing them considering the significance and value of each individual criteria and standard. a...