Search results for "Context"

Contextual neural-network based spectrum prediction for cognitive radio

2015

Cognitive radio is the technique of effective electromagnetic spectrum usage important for future wireless communication including 5G networks. Neural networks are nature-inspired computational models used to solve cognitive radio prediction problems. This paper presents the use of contextual Sigma-if neural network in prediction of channel states for cognitive radio. Our results indicate that Sigma-if neural network confirms better predictions than Multilayer Perceptron (MLP) network and decreases sensing time for the benefit of the increase of the effectiveness of e-m spectrum usage.

Why Untrained Control Groups Provide Invalid Baselines: A Reply to Dienes and Altmann

2003

Dienes and Altmann argue that an untrained control group provides a reliable baseline to measure artificial grammar learning. In this reply, we first provide a fictitious example to demonstrate that this assessment is faulty. We then analyse why this assessment is wrong, and we reiterate the solution proposed in Reber and Perruchet (this issue) for a proper control. Finally, we point out the importance of these methodological principles in the context of implicit learning studies. In their comment, Dienes and Altmann (this issue) raise two main concerns. First, they argue that any difference in classification between an experimental group and an untrained control group reflects the fact tha…

Out of fuzzy chemistry: from prebiotic chemistry to metabolic networks

2012

The origin of life on Earth was a chemical affair. So how did primitive biochemical systems originate from geochemical and cosmochemical processes on the young planet? Contemporary research into the origins of life subscribes to the Darwinian principle of material causes operating in an evolutionary context, as advocated by A. I. Oparin and J. B. S. Haldane in the 1920s. In its simplest form (e.g., a bacterial cell) extant biological complexity relies on the functional integration of metabolic networks and replicative genomes inside a lipid boundary. Different research programmes have explored the prebiotic plausibility of each of these autocatalytic subsystems and combinations thereof: sel…

How to integrate dreaming into a general theory of consciousness—A critical review of existing positions and suggestions for future research

2011

In this paper, we address the different ways in which dream research can contribute to interdisciplinary consciousness research. As a second global state of consciousness aside from wakefulness, dreaming is an important contrast condition for theories of waking consciousness. However, programmatic suggestions for integrating dreaming into broader theories of consciousness, for instance by regarding dreams as a model system of standard or pathological wake states, have not yielded straightforward results. We review existing proposals for using dreaming as a model system, taking into account concerns about the concept of modeling and the adequacy and practical feasibility of dreaming as a mod…

Notes on the Success of Speech Acts and Negotiating Commitments

1996

Technologies that support communication and models used in the development of communications need good underlying theories. One theory suggested as a base for design is speech act theory. Both communication support tools and modelling notations informed by speech act theory have been proposed. Speech act theory forms no unified, single theory, but actually houses several variants for dealing with semantics, pragmatics, and social context of communications. They all have one common feature: they assume that language is not merely a means of describing but also a means for doing things. In this paper we present an overview of speech act theories and their uses in information systems research.…

Transformations Toward Mature Thinking: Challenges for Education and Learning

2012

In this chapter, adult cognitive development and its transformation are explored in the context of a rapidly changing postmodern world. This chapter presents and describes three models of adult cognitive development and their educational implications. The models presented are Basseches’ model of dialectical thinking, Kuhn’s model of epistemological development, and Baxter Magolda’s model of the development of self-authorship. These models are described in greater detail because they present advanced forms of adult cognitive development but also because of the challenge they pose to educational practices. These models open possibilities for understanding educational practices and learning es…

Learning processes in user training

2010

While the maturing research literature on training has generated increasingly sophisticated and more comprehensive theoretical models, the actual process through which users learn to use a system remains a relatively neglected area. The extant literature that has paid attention to processes have conceptualized these as structures and examined them through variance studies. In this paper, we address this knowledge gap by advancing hermeneutics as a lens to depict the process through which users come to learn about the system. We explain the hermeneutic process, situate it in a training context and illustrate our conceptualization by interpreting a specific training program at a large organiz…

Chapter 3. Fine-tuning lexical bundles

2018

Titchener's T in Context Delimited, Discrete Monomotif Patterns

2014

ChemInform Abstract: Out of Fuzzy Chemistry: From Prebiotic Chemistry to Metabolic Networks

2012

The origin of life on Earth was a chemical affair. So how did primitive biochemical systems originate from geochemical and cosmochemical processes on the young planet? Contemporary research into the origins of life subscribes to the Darwinian principle of material causes operating in an evolutionary context, as advocated by A. I. Oparin and J. B. S. Haldane in the 1920s. In its simplest form (e.g., a bacterial cell) extant biological complexity relies on the functional integration of metabolic networks and replicative genomes inside a lipid boundary. Different research programmes have explored the prebiotic plausibility of each of these autocatalytic subsystems and combinations thereof: sel…