Problem statement: To design, implement, and test an algorithm for solving the square jigsaw puzzle problem, which has many applications in image processing, pattern recognition, and computer vision such as restoration of archeological artifacts and image descrambling. Approach: The algorithm used the gray level profiles of border pixels for local matching of the puzzle pieces, which was perfor...

Otherwise uncomplicated infections with Streptococcus pyogenes can cause two insidious immune sequelae known as post-streptococcal glomerulonephritis (PSGN) and acute rheumatic fever (ARF). These diseases follow with a latency of a few weeks or months after primary infection and are responsible for high mortality and morbidity. PSGN has also been linked to infections with group C streptococci o...

We investigate the similarities and differences – in terms of quantitative performance and qualitative behaviors – between how children solve an object manipulation task using mouse-based input versus tangible-based input. This work examines the assumption common in tangible computing that direct physical manipulation is beneficial for certain spatial tasks. We describe an ecologically valid co...

A generalized three-dimensional concept of continuous forest inventories applicable to all common forest sample designs is presented and discussed. The concept recognizes the forest through time as a three-dimensional population, two dimensions in land area and the third in time. The sample is selected from a finite three-dimensional partitioning of the population. The partitioning is analogous...

ion, and of composing mechanisms versus composing phenomena. Validation of a module is different from validating a collection of modules. Composability is in the eyes of the beholder, and a key problem is that composability is too often discussed without enough focus on the customer and his requirements. We need a solid definition of composability before we proceed, one with more meat [than is ...

We describe a new adaptive multiwindow Gabor expansion, which dynamically adapts the windows to the signal’s features in time-frequency space. The adaptation is based upon local time-frequency sparsity criteria, and also yields as by-product an expansion of the signal into layers corresponding to different windows. As an illustration, we show that simply using two different windows with differe...

oday almost all organizations use the Internet extensively for both intraand inter-organizational communications. The Internet is also the exclusive vehicle for E-commerce transactions involving customers and other business partners. This eliminates the significant infrastructure costs of private data communications networks and enables even small companies to participate in E-commerce. However...

Focused correlation compares the degree of association within an evidence set to the degree of association in that evidence set given that some hypothesis is true. A difference between the confirmation lent to a hypothesis by one evidence set and the confirmation lent to that hypothesis by another evidence set is robustly tracked by a difference in focused correlations of those evidence sets on...