Contributions on Closed System Transformations Based Thermal Cycles

On Black-Box Transformations in Downward-Closed Environments

Black-box transformations have been extensively studied in algorithmic mechanism design as a generic tool for converting algorithms into truthful mechanisms without degrading the approximation guarantees. While such transformations have been designed for a variety of settings, Chawla et al. showed that no fully general black-box transformation exists for single-parameter environments. In this p...

A Wayfinding Grammar Based on Reference System Transformations

Wayfinding models can be helpful in describing, understanding, and technologically supporting the processes involved in navigation. However, current models either lack a high degree of formalization, or they are not holistic and perceptually grounded, which impedes their use for cognitive engineering. In this paper, we propose a novel formalism that covers the core wayfinding processes, yet is ...

Transformations based on Relations

The Model Driven Architecture (MDA) is an approach to IT systems development fostered by the Object Management Group (OMG). It is based on forming a separation between the specification of a systems essential functionality as a platform independent model (PIM) and the realisation of the system using more detailed and specific platform specification (PSM). It is recognised that specifying the ma...

Developing a Web Recommendation System Based on Closed Sequential Patterns

Closed-Loop Identification of Power System Based on Ambient Data

Small fluctuations caused by random changes of loads exist continuously in power grids, which are called ambient signals. Using time-synchronized phasor measurements, the closedloop identification of power system based on ambient data is discussed, which can reflect accurate operating conditions currently and provide critical information for system analyzing and controller designing. The closed...