scholarly journals Psychological Profiling and Event Forecasting Using Computational Language Analysis

2021 ◽  
Author(s):  
Ryan L. Boyd ◽  
Paul Kapoor
Keyword(s):  
Computer Science ◽  
Computational Modelling ◽  
Objective Measures ◽  
Mental Processes ◽  
Practical Applications ◽  
Language Analysis ◽  
Psychological Profiling ◽  
Language Patterns ◽  
Event Forecasting

Psychologists have long believed that we can discern what makes a person tick by analysing their language. The modern study of language has become a highly sophisticated area of research that leverages computational modelling, objective measures of language, and extensive empirical rigor. The links between a person’s mental processes and the words that they say or write have been extensivelystudied, validated, and applied to fields as diverse as computer science, medicine, sociology, and anthropology, to name just a few. The ability to ‘get inside a person’s head’ by analysing their language patterns from a distance has tremendous appeal and several practical applications, ranging from the patently obvious to the surprisingly nuanced.

Massive Particle Reflection from Moving Mirrors

2016 ◽  
Vol 71 (9) ◽  
pp. 869-872
Author(s):  
Adrian Sfarti
Keyword(s):  
Computer Science ◽  
Engineering Design ◽  
Massive Particle ◽  
Massless Particles ◽  
Practical Applications ◽  
Momentum Change ◽  
Massive Particles ◽  
Computer Scientists ◽  
The Subject ◽  
Electron Microscopes

AbstractWe investigate the reflection of massive particles from moving mirrors. The adoption of the formalism based on the energy-momentum allowed us to derive the most general set of formulas, valid for massive and, in the limit, also for massless particles. We show that the momentum change of the reflecting particle always lies along the normal to the mirror, independent of the mirror speed. The subject is interesting not only to physicists designing concentrators for fascicles of massive particles and electron microscopes but also to computer scientists working in raytracing operating in the photon sector. The paper, far from being only theoretical, has profound and novel practical applications in both domains of engineering design and computer science.

scholarly journals Abrupt light transitions in illuminance and correlated colour temperature result in different temporal dynamics and interindividual variability for sensation, comfort and alertness

PLoS ONE ◽  
2021 ◽  
Vol 16 (3) ◽  
pp. e0243259
Author(s):  
Maaike E. Kompier ◽  
Karin C. H. J. Smolders ◽  
Yvonne A. W. de Kort
Keyword(s):  
Temporal Dynamics ◽  
Interindividual Variability ◽  
Color Temperature ◽  
Objective Measures ◽  
Visual Comfort ◽  
Practical Applications ◽  
Light Manipulation ◽  
Subjective Evaluations ◽  
Study Protocols ◽  
The Individual

Detailed insights in both visual effects of light and effects beyond vision due to manipulations in illuminance and correlated color temperature (CCT) are needed to optimize study protocols as well as to design light scenarios for practical applications. This study investigated temporal dynamics and interindividual variability in subjective evaluations of sensation, comfort and mood as well as subjective and objective measures of alertness, arousal and thermoregulation following abrupt transitions in illuminance and CCT in a mild cold environment. The results revealed that effects could be uniquely attributed to changes in illuminance or CCT. No interaction effects of illuminance and CCT were found for any of these markers. Responses to the abrupt transitions in illuminance and CCT always occurred immediately and exclusively amongst the subjective measures. Most of these responses diminished over time within the 45-minute light manipulation. In this period, no responses were found for objective measures of vigilance, arousal or thermoregulation. Significant interindividual variability occurred only in the visual comfort evaluation in response to changes in the intensity of the light. The results indicate that the design of dynamic light scenarios aimed to enhance human alertness and vitality requires tailoring to the individual to create visually comfortable environments.

Virtual Environments and Advanced Interface Design

1995 ◽  
Keyword(s):  
Computer Science ◽  
Virtual Environments ◽  
Virtual Environment ◽  
Interface Design ◽  
Human Perception ◽  
Design Strategies ◽  
Virtual Technology ◽  
Practical Applications ◽  
Depth Analysis ◽  
The Subject

This sweeping introduction to the science of virtual environment technology masterfully integrates research and practical applications culled from a range of disciplines, including psychology, engineering, and computer science. With contributions from the field's foremost researchers and theorists, the book focuses in particular on how virtual technology and interface design can better accommodate human cognitive, motor, and perceptual capabilities. Throughout, it brings the reader up-to-date with the latest design strategies and cutting-edge virtual environments, and points to promising avenues for future development. The book is divided into three parts. The first part introduces the reader to the subject by defining basic terms, identifying key components of the virtual environment, and reviewing the origins and elements of virtual environments. The second part focuses of current technologies used to present visual, auditory, tactile, and kinesthetic information. The book concludes with an in-depth analysis of how environments and human perception are integrated to create effective virtual systems. Comprehensive and splendidly written, Virtual Environments and Advanced Interface Design will be the "bible" on the subject for years to come. Students and researchers in computer science, psychology, and cognitive science will all want to have a copy on their shelves.

Computer science research on scientific discovery

1996 ◽  
Vol 11 (1) ◽  
pp. 57-66 ◽  
Author(s):  
Raúl E. Valdés-Pérez
Keyword(s):  
Computer Science ◽  
Scientific Reasoning ◽  
Scientific Discovery ◽  
Science Research ◽  
Research Quality ◽  
Research Directions ◽  
History Of Computing ◽  
Practical Applications ◽  
Computer Science Research ◽  
History Of

AbstractThis article is an essay on directions and methodology in computer-science oriented research on scientific discovery. The essay starts by reviewing briefly some of the history of computing in scientific reasoning, and some of the results and impact that have been achieved. The remainder analyses some of the goals of this field, its relations with sister fields, and the practical applications of this analysis to evaluating research quality, reviewing, and methodology. An earlier review in this journal (Kocabas 1991b) analysed scientific discovery programs in terms of their designs, achievements and shortcomings; the focus here is research directions, evaluation and methodology, all from the viewpoint of computer science.

Computational modelling of laser treatment of plates for increased buckling loads and natural frequencies

2011 ◽  
Vol 225 (10) ◽  
pp. 2385-2398 ◽  
Author(s):  
C Bilik ◽  
F G Rammerstorfer ◽  
G Figala ◽  
B Buchmayr
Keyword(s):  
Residual Stresses ◽  
Laser Treatment ◽  
Lightweight Design ◽  
Computational Modelling ◽  
Practical Applications ◽  
Thin Walled Structures ◽  
Element Approach ◽  
The Common ◽  
The Stability ◽  
Local Plastic Deformation

As a special measure in lightweight design, residual stresses can be used for improving the stability and vibration behaviour of thin-walled structures. In contrast to the common practice of inducing proper residual stresses by mechanically caused local plastic deformation, in the present paper it is shown by numerical procedures as well as by experiments how such beneficial residual stresses can be produced by a proper heat treatment using laser. This is shown by simple plate examples, for proof of concept. A finite element approach is combined with algorithms simulating the heat input from laser beams. The analyses comprise investigations of a single laser dot for studying the fundamental behaviour of laser treatment according to the abovementioned aspects, and – for practical applications – continuously moving and intermittently acting beams are considered. Unwanted effects, such as distortions and possible instabilities appearing during the laser treatment, are considered as well, and methods are presented for avoiding them. A number of generic laser tracks as well as patterns of laser dots of different configurations are investigated. Experiments were performed which confirm the potential of laser treatment of plates for improving stability and dynamic behaviour.

scholarly journals Searching for Well-Behaved Fragments of Halpern-Shoham Logic

2017 ◽  
Author(s):  
Przemysław Andrzej Wałęga
Keyword(s):  
Artificial Intelligence ◽  
Computational Complexity ◽  
Natural Language ◽  
Real Time ◽  
Temporal Reasoning ◽  
Time Intervals ◽  
Practical Applications ◽  
Time Points ◽  
Language Analysis ◽  
Natural Language Analysis

Temporal reasoning constitutes one of the main topics within the field of Artificial Intelligence. Particularly interesting are interval-based methods, in which time intervals are treated as basic ontological objects, in opposite to point-based methods, where time-points are considered as basic. The former approach is more expressive and seems to be more appropriate for such applications as natural language analysis or real time processes verification. My research concerns the classical interval-based logic, namely Halpern-Shoham logic (HS). In particular, my investigation continues recently proposed search for well-behaved - i.e., expressive enough for practical applications and of low computational complexity - HS fragments obtained by imposing syntactical restrictions on the usage of propositional connectives in their languages.

The Four-Color Theorem and the Geometry of Nature

2018 ◽  
pp. 51-63
Author(s):  
Jean Constant
Keyword(s):  
Graph Theory ◽  
Computer Science ◽  
Visual Communication ◽  
Mathematical Reasoning ◽  
Technical Data ◽  
Practical Applications ◽  
Science And Art ◽  
Four Color Theorem ◽  
Actual Effectiveness ◽  
Color Scheme

The four-color theorem stands at the intersection of Science and Art. The mathematical reasoning used to solve the theorem lead to many practical applications in mathematics, graph theory, and computer science. One aspect of the four-color theorem, which was seldom covered and relevant to the field of visual communication, is the actual effectiveness of the distinct 4 colors scheme chosen to define its mapping. This chapter briefly reviews the historical and scientific background of the theorem, puts in perspective contemporary scientific and technical data pertaining to the perception of color, and studies the theorem in a particular color scheme on a fluorite crystal, which was chosen because of its colorless appearance and the mathematically symmetrical nature of its structure.

Applications of Benford's Law

2015 ◽  
Author(s):  
Arno Berger ◽  
Theodore P. Hill
Keyword(s):  
Computer Science ◽  
Cross Section ◽  
Ad Hoc ◽  
Fraud Detection ◽  
Benford’S Law ◽  
Natural Phenomena ◽  
Pedagogical Tool ◽  
Practical Applications ◽  
Benford's Law ◽  
Main Ideas

This chapter provides a overview of the practical applications of Benford's law. These include fraud detection, detection of natural phenomena, diagnostics and design, computations and computer science, and as a pedagogical tool. In contrast to the rest of the book, this chapter is necessarily expository and informal. It has been organized into a handful of ad hoc categories, which the authors hope will help illuminate the main ideas. None of the conclusions of the experiments or data presented here have been scrutinized or verified by the authors of this book, since the intent here is not to promote or critique any specific application. Rather the goal is to offer a representative cross-section of the related scientific literature, in the hopes that this might continue to facilitate research in both the theory and practical applications of Benford's law.

Practical and Fundamental Developments in the Computational Modelling of Fluid Flows

1995 ◽  
Vol 209 (5) ◽  
pp. 297-314 ◽  
Author(s):  
J C R Hunt
Keyword(s):  
Computational Modelling ◽  
Essential Element ◽  
Fluid Flows ◽  
Computer Code ◽  
Output Level ◽  
Practical Applications ◽  
Modern Engineering ◽  
Computational Fluid Dynamics Cfd ◽  
Computational Resources ◽  
A Current

The reasons for the recent growth of computational fluid dynamics (CFD) for industrial and environmental applications are briefly explained, and thence why the users and managers of CFD systems should understand the main underlying principles, the different options and future possibilities of this essential element in modern engineering design. The paper reviews in non-mathematical terms (a) current concepts of turbulence and the mechanisms that need to be modelled; (b) the three levels of computer code, classified according to their output level, their requirements for data and computational resources; (c) the way the codes are constructed and used; (d) how the results have to be interpreted and qualified for all practical applications; and (e) finally how CFD is developing, with better accuracy in specific areas and applications to more complex problems (with thermodynamics, chemistry, etc.) and even to flows where the turbulence is controlled interactively.

Free-Software Development in Computer Science Education for Interface Representation in Casting Processes

2011 ◽  
Vol 692 ◽  
pp. 33-41
Author(s):  
Joaquin López
Keyword(s):  
Science Education ◽  
Computer Science ◽  
Computer Science Education ◽  
Volume Fraction ◽  
Free Software ◽  
Three Dimensions ◽  
Practical Applications ◽  
Fraction Distribution ◽  
Mould Cavity ◽  
Fluid Body

The aim of this work is to emphasize the advantages of the use of free software in computer science education for accurately representing complex interface shapes such as those that arise in casting processes during the filling of a mould cavity or during the solidification of the molten metal. A new scheme, based on free software, for reconstructing complex interface shapes in three dimensions has been specifically developed in order to facilitate its implementation by the students of a PhD course in the Polytechnic University of Cartagena (UPCT). In particular, a procedure to initialize the volume fraction occupied by a fluid body in computacional cells, and another to reconstruct the interface shape based on the initialized volume-fraction distribution, are proposed. Finally, different practical applications of this new scheme are presented.

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