Using hard AI (Artificial Intelligence) problems for security is an exciting new paradigm. Under this paradigm, the most notable primitive invented is Captcha, which distinguishes human users from computers by presenting a challenge, i.e., a puzzle, beyond the capability of computers but easy for humans. Captcha is now a standard Internet security technique to protect […]
INTERACTIVE IMAGE SEGMENTATION BASED ON ACCELERATED LEARNING USING PAIRWISE CONSTRAINTS
Segmentation often is used as a pre-processing step before higher level image processing or understanding. Manually segmenting images can be laborious and time-consuming, especially for large images, and can be prone to subjectivity. At the same time, developing a generic unsupervised segmentation algorithm that can be accurately applied to all, or even many, types of […]
HYBRID WIRELESS NETWORKS WITH QOD ROUTING PROTOCOL
In order to enhance the QoS support capability of hybrid wireless networks, in this abstract, we propose a QoS-Oriented Distributed routing protocol (QOD). Taking advantage of fewer transmission hops and any cast transmission features of the hybrid networks, QOD transforms the packet routing problem to a resource scheduling problem. QOD incorporates five algorithms: 1) a […]
SECURITY OF TRUSTEE-BASED SOCIAL AUTHENTICATIONS AGAINST FOREST FIRE ATTACK
Trustee-based social authentication has attracted increasing attentions and has been shown to be a promising backup authentication mechanism . Specifically, a user’s security in trustee-based social authentications relies on the security of his or her trustees; if all trustees of a user are already compromised, then the attacker can also compromise him or her because […]
BROKER-LESS PUBLISH/SUBSCRIBE SYSTEMS WITH IDENTITY-BASED ENCRYPTION
In publish/subscribe (pub/sub) communication, Publishers inject information into the pub/sub system, and subscribers specify the events of interest by means of subscriptions. Published events are routed to their relevant subscribers, without the publishers knowing the relevant set of subscribers, or vice versa. This abstract presents a novel approach to provide confidentiality and authentication in a […]