Search results for "Categorization"
showing 10 items of 199 documents
Observing animals and humans : dogs target their gaze to the biological information in natural scenes
2020
Background This study examines how dogs observe images of natural scenes containing living creatures (wild animals, dogs and humans) recorded with eye gaze tracking. Because dogs have had limited exposure to wild animals in their lives, we also consider the natural novelty of the wild animal images for the dogs. Methods The eye gaze of dogs was recorded while they viewed natural images containing dogs, humans, and wild animals. Three categories of images were used: naturalistic landscape images containing single humans or animals, full body images containing a single human or an animal, and full body images containing a pair of humans or animals. The gazing behavior of two dog populations,…
Using the Tsetlin Machine to Learn Human-Interpretable Rules for High-Accuracy Text Categorization With Medical Applications
2019
Medical applications challenge today's text categorization techniques by demanding both high accuracy and ease-of-interpretation. Although deep learning has provided a leap ahead in accuracy, this leap comes at the sacrifice of interpretability. To address this accuracy-interpretability challenge, we here introduce, for the first time, a text categorization approach that leverages the recently introduced Tsetlin Machine. In all brevity, we represent the terms of a text as propositional variables. From these, we capture categories using simple propositional formulae, such as: if "rash" and "reaction" and "penicillin" then Allergy. The Tsetlin Machine learns these formulae from a labelled tex…
Facebook’s ad hoc groups: a potential source of communicative power of networked citizens
2017
Ad hoc groups (sporadically formed on social network sites for achieving particular common objectives) have been seen as a public space for citizen participation and debate. This study focuses on Facebook’s ad hoc groups in Finland. The aim is to detect the potential of these groups to enhance networked citizens’ communicative power for raising societally important issues to public agenda and initiate changes in society. We suggest a categorization of the groups according to their missions, and present their members’ specific motivations and objectives through an online survey. Despite the general entertainment-orientation and self-referential nature of social media, the results show that a…
Online Stakeholder Interaction of Some Airlines in the Light of Situational Crisis Communication Theory
2016
Part 2: Digital Marketing and Customer Relationship Management; International audience; The purpose of this paper is to explore the participation of main actors in Facebook. The engagement shows different degrees of participation that directly affect the brand image and reputation. This research applies Situational Crisis Communication Theory (SCCT) to interaction in the social media. It provides possibilities for decision makers to monitor diverse messages online, understand stakeholder concerns and reply to them adequately, which is especially important in crisis situations. Seven airline organizations were selected for a comparative analysis concerning their online discussions. The verif…
Making sense of multi-actor dialogues in family therapy and network meetings.
2012
In recent years, a number of family therapists have conceptualized psychotherapy as a dialogical activity. This view presents family therapy researchers with specific challenges, the most important of which is to find ways of dealing with the dialogical qualities of the multi-actor dialogues that occur, for example, in family therapeutic conversations. In this article, we propose some preliminary ideas concerning qualitative investigations of multi-actor dialogues. Our aim is to work toward an integration of Bakhtin’s theoretical concepts with good practices in qualitative research (e.g., dialogical tools and concepts of a narrative processes coding system) in order to make sense of family …
A genetic algorithm for image segmentation
2002
The paper describes a new algorithm for image segmentation. It is based on a genetic approach that allow us to consider the segmentation problem as a global optimization problem (GOP). For this purpose, a fitness function, based on the similarity between images, has been defined. The similarity is a function of both the intensity and the spatial position of pixels. Preliminary results, obtained using real images, show a good performance of the segmentation algorithm.
Gravitational weighted fuzzy c-means with application on multispectral image segmentation
2014
This paper presents a novel clustering approach based on the classic Fuzzy c-means algorithm. The approach is inspired from the concept of interaction between objects in physics. Each data point is regarded as a particle. A specific weight is associated with each data particle depending on its interaction with other particles. This interaction is induced by attraction forces between pairs of particles and the escape velocity from other particles. Classification experiments using two data sets from UCI repository demonstrate the outperformance of the proposed approach over other clustering algorithms. In addition, results demonstrate the effectiveness of the proposed scheme for segmentation …
Studying the field of game studies : a proposal model to categorize game studies
2016
Tässä Pro gradu -tutkielmassa kartoitan pelitutkimuksen kenttää ehdottamalla mallia, jonka avulla on mahdollista kategorisoida pelitutkimuksia. Kategorisoinnin avulla voidaan saada lisää tietoa siitä, mitä pelitutkimuksen alueella tutkitaan. Mäyrän (2008) ja Juulin (2011) pelitutkimuksen kuvailujen perusteella olen rakentanut mallin, jota kutsun 3+1-malliksi. Ehdottomani 3+1-mallin kategorioiden mukaisesti kaikki pelitutkimukseksi luokiteltavat tutkimukset voi kategorisoida johonkin seuraavista luokista: peli, pelaaja tai konteksti, tai näiden yhdistelmiin: peli ja pelaaja, peli ja konteksti, pelaaja ja konteksti, tai kaikista kolmesta koostuvaan pelaaminen-luokkaan. Tämä Pro gradu -tutkiel…
Characterization and differentiation of rock varnish types from different environments by microanalytical techniques
2017
© 2017 Elsevier B.V. We investigated rock varnishes collected from several locations and environments worldwide by a broad range of microanalytical techniques. These techniques were selected to address the challenges posed by the chemical and structural complexity within the micrometer- to nanometer-sized structures in these geological materials. Femtosecond laser ablation-inductively coupled plasma-mass spectrometry (fs LA-ICP-MS), scanning transmission X-ray microscopy-near edge X-ray adsorption fine structure spectroscopy (STXM-NEXAFS) in combination with scanning electron microscopy (SEM) of focused ion beam (FIB) ultra-thin (100–200 nm) sections, conventional and polarization microscop…
Categorization in Discourse and Grammar
2016
This collection of papers addresses new trends in Cognitive Linguistics. Three parts of the book focus on Conceptual Metaphor Theory and Integration Network Analysis. Both the theoretical contributions and the empirical case studies stress the importance of contextual factors in the meaning making processes. They employ qualitative methods to analyze the use of metaphor in political discourse and in the conceptualization of emotions. The data sets include multimodal data, sign languages and co-speech gestures. The fourth part of the book contains two corpus-based studies. The fifth part concentrates on the grammatical categories of passive voice and aspect. One contribution discusses the pr…