– The deÞning characteristic of a networked control system (NCS) is having a feedback loop that passes through a local area computer network. Our two-step design approach includes using standard control methodologies and choosing the network protocol and bandwidth in order to ensure important closed-loop properties are preserved when a computer network is inserted into the feedback loop. For su...

In this paper we give a classification of parallel branch and bound algorithms and develop a class of asynchronous branch and bound algorithms for execution on an MIMD system. We develop sufficient conditions to prevent the anomalies that can occur due to the parallelism, the asynchronicity or the nondeterminism, from degrading the performance of the algorithm. Such conditions were known alread...

In the full π-calculus by Milner, Parrow and Walker [7] all communication is done by synchronous interaction between processes. In terms of knowledge, this situation has an important consequence, that is, common knowledge is achieved on every interaction. However, many communication scenarios that arise in Computer Science, require to consider asynchronous interaction. A common example can be f...

Asynchronous parallel implementations of stochastic gradient (SG) have been broadly used in solving deep neural network and received many successes in practice recently. However, existing theories cannot explain their convergence and speedup properties, mainly due to the nonconvexity of most deep learning formulations and the asynchronous parallel mechanism. To fill the gaps in theory and provi...

The field experiment described in this paper explores self-reported learning and actual learning outcomes when Asynchronous Learning Networks (ALN) vs. manual methods are used in the individual and group solution of ethical scenarios. A 2x2 factorial design crosses two modes of communication (manual vs. asynchronous computer conference) and two types of teamwork (individuals working alone vs. i...

This paper presents a basic circuit concept for pulse-driven asynchronous circuits using superconducting rapid single-flux-quantum (RSFQ) logic gates. Today’s computer systems perform using a synchronous clock distributed over the whole system. The distribution of the clock signal becomes more difficult as the clock frequency increases because the wavelength of the clock signal becomes shorter ...

This paper focuses on the content analysis, a technique frequently used for the approach of issues concerning asynchronous computer mediated discussion groups in distance education. Despite the fact that this research technique is frequently used, there are still no standards established. There is a variety of approaches, varying both at detail’s level and at the type of categories of analysis ...

Unsupervised manifold learning for dimensionality reduction has drawn much attention in recent years. This paper applies two manifold learning methods for the first time to feature dimensionality reduction in brain-computer interface (BCI) design, and compares them with principal component analysis (PCA) and supervised PCA that is mathematically equivalent to the common spatial patterns (CSP) m...

In [1], we presented an asynchronous parallel algorithm for self-organizing maps based on a recently defined energy function which leads to a self-organizing map. We generalized the existing stochastic gradient approach to an asynchronous parallel stochastic gradient method for generating a topological map on a distributed computer system (MIMD). We theoretically proved that our algorithm was c...