Abstract dadi is a popular but computationally intensive program for inferring models of demographic history and natural selection from population genetic data. I show that running on Graphics Processing Unit can dramatically speed computation compared with the CPU implementation, minimal user burden. Motivated by this increase, also extended to four- five-population models. This functionality ...

In this paper, a wavelet based watermarking scheme for the protection of document and graphics images is proposed. Document and graphics images are different from other images as such images are typically in two colors only (generally white as background and black or other color as text or drawing). In document or graphics images, white background area is usually more than the text or drawing c...

We show how the cofactorization step, a compute-intensive part of the relation collection phase of the number field sieve (NFS), can be farmed out to a graphics processing unit. Our implementation on a GTX 580 GPU, which is integrated with a state-of-the-art NFS implementation, can serve as a cryptanalytic co-processor for several Intel i7-3770K quad-core CPUs simultaneously. This allows those ...