The problem of maximizing or minimizing the spreading in a social network has become more timely than ever with advent fake news and coronavirus epidemic. solution to this pertains influence maximization algorithms that identify right nodes lockdown for epidemic containment, hire viral marketing campaigns, block online political propaganda etc. Though these have been developed many years, major...

The goal of a sequential decision-making problem is to design an interactive policy that adaptively selects group items, each selection based on the feedback from past, maximize expected utility selected items. It has been shown functions many real-world applications are adaptive submodular. However, most existing studies submodular optimization focus average-case, is, their objective find maxi...

background: in this study, quantitative 32p bremsstrahlung planar and spect imaging and consequent dose assessment were carried out as a comprehensive phantom study to define an appropriate method for accurate dosimetry in clinical practice. materials and methods: ct, planar and spect bremsstrahlung images of jaszczak phantom containing a known activity of 32p were acquired. in addition, phanto...