We compare eleven methods for finding prototypes upon which to base the nearest Ž prototype classifier. Four methods for prototype selection are discussed: Wilson Hart a . condensation error-editing method , and three types of combinatorial search random search, genetic algorithm, and tabu search. Seven methods for prototype extraction are discussed: unsupervised vector quantization, supervised...

This paper presents signal properties of spaceborne, strip-map SAR for very large squint angles. Doppler centroid, azimuth bandwidth, and exposure time are derived in terms of the platform attitude and elevation angle. This allows a description of the Doppler centroid variation with range and terrain height, and explains a possible range dependence of azimuth bandwidth at high squint. The yaw a...

The title mol-ecular salt, C15H21N2O(+)·ClO4 (-), crystallizes with four cations (A, B, C and D) and four anions in the chiral unit cell (space group P21). The alkaloid was isolated from the aerial parts of Genista Hispanica collected in the Samarkand region of Uzbekistan. Each cation is protonated at the N atom that bridges the alkaloid rings C and D. In each cation, ring A is almost planar an...

Design of proportional-integral-derivative (PID) controller with proportional, integral, and derivative gains given by , respectively, for time-delay systems is presented in this study. The centroid the convex stability region (CCSR) method - plane fixed used. PID design a have been extensively researched. Despite amenability CCSR to its application regard has not serious attention. was determi...

This study investigates acoustic characteristics of Aymara ejectives. Acoustic measurements of the Aymara ejectives were conducted in terms of the durations of the release burst, the vowel, and the intervening gap (VOT), the intensity and spectral centroid of the release burst, and H1-H2 of the initial part of the vowel. Results showed that ejectives vary with place of articulation in the durat...

In the layout design of analog integrated circuits, common centroid constraints can effectively reduce parasitic mismatch and thermal gradients, which may otherwise degrade circuit performance. In this paper, we first survey the frontline research of common-centroid-aware layout placement algorithms and implement a graph-based packing approach to handle common centroid constraints in the analog...