In 1978, Rivest, Adleman and Dertouzos asked for algebraic systems for which useful privacy homomorphisms exist. To date, the only acknownledged result is noise based encryption combined with bootstrapping. Before that, there were several failed attempts. We prove that fully homomorphic schemes are impossible for several algebraic structures. Then we develop a characterisation of all fully homo...

In recent years there has been an increase in the number of papers, many of which have been published in high profile journals, that address real environmental or ecological problems, but with flawed, subjective, and frequently hyperbolic arguments. I identify two such examples from the US Gulf of Mexico, linked by their focus on fisheries resources as the cause de jour, to illustrate the probl...

Whether beauty and ugliness represent two independent judgement categories or, instead, opposite extremes of a single dimension is a matter of debate. In the present 3T-functional Magnetic Resonance Imaging (fMRI) study, 20 participants were scanned while judging faces and nude bodies of people classified as extremely ugly, extremely beautiful, or indifferent. Certain areas, such as the caudate...

The Good, the Bad, & the Ugly Face Challenge Problem was created to encourage the development of algorithms that are robust to recognition across changes that occur in still frontal faces. The Good, the Bad, & the Ugly consists of three partitions. The Good partition contains pairs of images that are considered easy to recognize. The base verification rate (VR) is 0.98 at a false accept rate (F...

Ugly foods meet nutritional and safety benchmarks but deviate from cosmetic size standards. The marketability of ugly food is a major factor that frustrates field-level rescue efforts. We investigate opportunities to promote in way converts uniform negative preferences towards more diverse horizontally differentiated where some consumers prefer standard offerings pay premium. conduct an online ...

The growing number of wellness care facilities in India has raised concern over the service quality that is being provided to tourists. This research targets explore dimensions tourism based on customers’ perception. Social media platforms such as Google reviews and hotel review blogs/websites were used gather 400 public reviews. A Naïve Bayes machine learning Sentiment Analysis approach was id...