In an identity based encryption scheme, each user is identified by a unique identity string. An attribute based encryption scheme (ABE), in contrast, is a scheme in which each user is identified by a set of attributes, and some function of those attributes is used to determine decryption ability for each ciphertext. Sahai and Waters introduced a single authority attribute encryption scheme and ...

Introduction Many preference models are quantitative. These kinds of models are based on utilities; a utility function determines for each outcome a numerical value of desirability. However, it is difficult to elicit such models from users. Humans generally express their preferences in a more qualitative way. Therefore, qualitative preference models would provide a better correspondence with hu...

Abstract Understanding the structure of communities in a network has great importance economic analysis. Communities are indeed characterized by specific properties, that different from those both individual nodes and whole network, they can affect various processes on network. In International Trade Network, community detection aims to search sets countries (or trade sectors) which have high i...

In this work, we adhere to explore a Multi-Tasking learning (MTL) based network perform document attribute classification such as the font type, size, emphasis and scanning resolution of image. To accomplish these tasks, operate on either segmented word level or uniformed size patches randomly cropped out document. Furthermore, hybrid convolution neural (CNN) architecture ”MTL+MI”, which is com...