Conducting system operations (such as upgrade, reconfiguration, deployment) for large-scale systems in cloud is error prone and complex. These operations rely heavily on unreliable cloud infrastructure APIs to complete. The inherent uncertainties and inevitable errors cause a long-tail in the completion time distribution of operations. In this paper, we propose mechanisms and deployment archite...

Poster advertisement has a long tradition and is transforming rapidly into digital media. In this paper we provide an overview of how sensing can be used to create online and up to date information about potential viewers. We assess what application domains can benefit from continuous monitoring of visitors. As measuring with simple sensors is inherently error prone we suggest the notion of com...

In this paper, we present an overview on recent advances in our work on multimodal human-machine communication between humans and technical cognitive systems in order to enable the solution of complex problems that require the joint cooperation of humans and intelligent systems to accomplish challenging tasks that can be only successfully handled if both interact in a cooperative manner. The te...

When integrating information from multiple websites, the same data objects can exist in inconsistent text formats across sites, making it difficult to identify matching objects using exact text match. We have developed an object identification system called Active Atlas, which compares the objects’ shared attributes in order to identify matching objects. Certain attributes are more important fo...

Cognitive radio system provide us a solution for spectrum congestion problem, but the effectiveness of the system is only depends on the technique used for spectrum sensing, that how effectively the detection is performing at very low SNR. In this research paper we proposed a technique of spectrum sensing based on CAF and third order cumulant. And the proposed algorithm effectively able to dete...

This paper describes the process of constructing the eCat test and provides information on the effects its normal operation had on its psychometric properties. Results obtained from 3224 students revealed that the 225 item pool has adequate reliability and good convergent validity with respect to self-reported English proficiency. Simulations showed that ability estimations are essentially unbi...

We propose the concept of cognitive networking for large-scale wireless systems, which opportunistically utilises network resources including both spectrum bandwidth and radio availability. Both types of resources cannot be predetermined in large-scale wireless systems, due to various reasons such as interferences and dynamic traffic load. The proposed technology not only establishes dynamic wi...

Cognitive Radio allows Software Defined Radio terminal to perceive its environment and then interact with it. In other words, cognitive radio can collect information from its surroundings, model them and try to adapt its behavior according to them. The main aim of this paper is to shed light on the concept of spectrum sensing and adaptive cognitive radio and propose an application implemented o...

Virtual Forum Theater is a web-based participatory and collaborative digital drama designed to enhance expressive fluency, argumentation skills, and critical awareness. The theoretical framework is based on Pedagogy of the Oppressed (Freire, 1972), constructivism (Piaget, 1977), constructionism (Papert, 1980), Computer Supported Collaborative Learning (CSCL) (Koschmann, 1996) as well as Theater...

Theories of sentence production that involve a convergence of activation from conceptual-semantic and syntactic-sequential units inspired a connectionist model that was trained to produce simple sentences. The model used a learning algorithm that resulted in a sharing of responsibility (or “division of labor”) between syntactic and semantic inputs for lexical activation according to their predi...