A qualitative approach to the change detection problem with different types of sampling

2002 ◽  
Author(s):  
D. Pomorski ◽  
M. Sbai ◽  
M. Staroswiecki
Keyword(s):  
Change Detection ◽  
Qualitative Approach ◽  
Detection Problem ◽  
Different Types

scholarly journals A paradigm shift: Adoption of disruptive learning innovations in an ODL environment: The case of the University of South Africa

2015 ◽  
Vol 16 (3) ◽  
Author(s):  
Blessing Mbatha
Keyword(s):  
Paradigm Shift ◽  
Teaching And Learning ◽  
Qualitative Approach ◽  
Transactional Distance ◽  
Focus Group Interviews ◽  
Disruptive Innovations ◽  
Different Types ◽  
Group Interviews ◽  
Axial Coding ◽  
The University

<p class="norm">The aim of this article is to shed some light on patterns of and major motives for the adoption of different types of disruptive learning innovations by Unisa academics. To realise the aim of the study, the following questions were addressed: What are the reasons for adopting disruptive learning innovations? What is the level of interaction with disruptive innovations? What training do Unisa academics require on disruptive innovations? A qualitative approach was adopted by conducting focus group interviews with 76 Unisa academics. The data was analysed using open and axial coding, where dominant themes from the discussions were identified and discussed in detail. The findings show that the interaction of Unisa lecturers with different technologies varied from technology to technology. The study also found that disruptive innovations play a pivotal role in opening avenues and collapsing the transactional distance in an ODL institution. Some lecturers lack skill in using some technology, which is a cause for concern. Therefore, lecturers need to be trained in using technology and develop a good understanding of it to improve teaching and learning.</p>

scholarly journals Automatic Change Detection Based on Edge Information Using Two Different Types of Ortho Image

2019 ◽  
Vol 2 ◽  
pp. 1-6
Author(s):  
Akira Sasagawa ◽  
Shuto Sugai ◽  
Mayumi Noguchi
Keyword(s):  
Change Detection ◽  
Conventional Method ◽  
Satellite Image ◽  
Aerial Photo ◽  
Edge Information ◽  
Different Types ◽  
The Difference ◽  
Detection Quality ◽  
Edge Vector ◽  
Robust Result

<p><strong>Abstract.</strong> A new algorithm of automatic change detection for update of base map is presented. In conventional method, using two different types of ortho image, such as aerial photo and satellite image, makes detection quality worse due to the difference of each contrast, brightness, color balance and so on. To obtain robust result against such difference between two images, we introduce edge-vector technique. We applied this method using two ortho images derived from each aerial photo and satellite image. We have tested our method and confirmed a performance of the change detection by the interpretation test. In this paper, the detailed algorithm and the result of interpretation test are reported.</p>

scholarly journals Bambuí Project: a qualitative approach to self-medication

2004 ◽  
Vol 20 (6) ◽  
pp. 1661-1669 ◽  
Author(s):  
Antônio I. de Loyola Filho ◽  
Maria Fernanda Lima-Costa ◽  
Elizabeth Uchôa
Keyword(s):  
Health Care ◽  
Qualitative Approach ◽  
Easy Access ◽  
Self Medication ◽  
Minas Gerais State ◽  
Different Types ◽  
Contextual Elements ◽  
Anthropological Approach ◽  
A Minor ◽  
The Town

Representations related to self-medication were investigated, seeking to identify contextual elements that can reinforce or inhibit such practice. An anthropological approach based on the model of signs, meanings, and actions was used. Twenty-nine inhabitants from the town of Bambuí, Minas Gerais State, Brazil, were interviewed (17 women and 12 men), selected among participants in a health survey that had been on medication in the previous 90 days. The research focused on the identification of different types of self-medication practiced by the interviewee or by a relative, and then "ways of thinking and behaving" associated with this practice were investigated. The influence of pharmacists/drugstore sales attendants as well as family and friends, perception of the health problem as transitory and a minor issue, familiarity with and easy access to certain pharmaceuticals, as well as difficulties in access to (and negative assessment of) health care were determinant factors for self-medication.

Politeness strategies and the representation of women in the Holy Qur’an

2018 ◽  
Vol 15 (3) ◽  
pp. 409-435
Author(s):  
Kawakib Al Momani ◽  
Fathi Migdadi ◽  
Eman Rabab’a
Keyword(s):  
Qualitative Approach ◽  
Cross Cultural ◽  
The Other ◽  
Representation Of Women ◽  
Different Types ◽  
Social Unity ◽  
Politeness Strategies ◽  
The Face ◽  
Negative Face ◽  
Sensitive Issues

Abstract The goal of this study is to examine the strategies of politeness used in the Qur’an, the holy book of Muslims, to address and represent women. Women have been represented negatively in many different types of texts through face-threatening acts that sustain masculine power and hegemony. This study attempts to investigate the image of women in the most sacred book of Muslims. Two aspects are examined herein: the representation of women in relation to sensitive issues like sex and marriage, and the forms of address and reference to women. A qualitative approach is used to provide interpretations of the hidden meanings in the selected excerpts, adopting Brown and Levinson’s theory of politeness and Leech’s maxims of politeness as the guides for the analysis. The analysis has revealed that women all through Qur’an have been addressed and referred to decently and politely. Unlike most of the other topics where bald-on-record strategies are used, the use of off-record strategies and positive and negative face strategies of politeness have been found to be dominant in discussion of issues relevant to women. These strategies have been used to avoid unpleasant communication in spiritual issues, and also to avoid misrepresentation of women, demeaning of their persons, causing any embarrassment, and thereby saving the face of both women and recipients. However, bald-on-record strategies are sometimes used in topics related to legal matters concerning familial and social unity and solidarity. The analysis has demonstrated the means by which language is used in the Glorious Qur’an to courteously address women. Concerning interpersonal maxims, the approbation, modesty, sympathy, tact, and agreement maxims have shown to be evident in addressing and referring to women. This study will contribute to the field of pragmatics and will lead to cross-religious and cross-cultural understanding during a period where Islam and its teachings are being widely questioned and examined.

scholarly journals Fusion of Change Vector Analysis in Posterior Probability Space and Postclassification Comparison for Change Detection from Multispectral Remote Sensing Data

2019 ◽  
Vol 11 (13) ◽  
pp. 1511 ◽  
Author(s):  
Fatemeh Zakeri ◽  
Bo Huang ◽  
Mohammad Reza Saradjian
Keyword(s):  
Land Cover ◽  
Change Detection ◽  
Probability Space ◽  
Posterior Probability ◽  
Feature Space ◽  
Change Vector Analysis ◽  
Different Types ◽  
Change Vector ◽  
Types Of Change ◽  
Change Map

Postclassification Comparison (PCC) has been widely used as a change-detection method. The PCC algorithm is straightforward and easily applicable to all satellite images, regardless of whether they are acquired from the same sensor or in the same environmental conditions. However, PCC is prone to cumulative error, which results from classification errors. Alternatively, Change Vector Analysis in Posterior Probability Space (CVAPS), which interprets change based on comparing the posterior probability vectors of a pixel, can alleviate the classification error accumulation present in PCC. CVAPS identifies the type of change based on the direction of a change vector. However, a change vector can be translated to a new position within the feature space; consequently, it is not inconceivable that identical measures of direction may be used by CVAPS to describe multiple types of change. Our proposed method identifies land-cover transitions by using a fusion of CVAPS and PCC. In the proposed algorithm, contrary to CVAPS, a threshold does not need to be specified in order to extract change. Moreover, the proposed method uses a Random Forest as a trainable fusion method in order to obtain a change map directly in a feature space which is obtained from CVAPS and PCC. In other words, there is no need to specify a threshold to obtain a change map through the CVAPS method and then combine it with the change map obtained from the PCC method. This is an advantage over other change-detection methods focused on fusing multiple change-detection approaches. In addition, the proposed method identifies different types of land-cover transitions, based on the fusion of CVAPS and PCC, to improve the results of change-type determination. The proposed method is applied to images acquired by Landsat and Quickbird. The resultant maps confirm the utility of the proposed method as a change-detection/labeling tool. For example, the new method has an overall accuracy and a kappa coefficient relative improvement of 7% and 9%, respectively, on average, over CVAPS and PCC in determining different types of change.

EXPRESS: The Concept of Authenticity: What it Means to Consumers

2021 ◽  
pp. 002224292199666
Author(s):  
Joseph C. Nunes ◽  
Andrea Ordanini ◽  
Gaia Giambastiani
Keyword(s):  
Consumer Attitudes ◽  
Qualitative Approach ◽  
Reconstruction Process ◽  
Different Types ◽  
Consumer Data ◽  
Quantitative Analyses ◽  
Nationally Representative ◽  
Consumer Assessment ◽  
Depth Interviews

The literature is filled with numerous idiosyncratic definitions of what it means for consumption to be authentic. The authors address the resulting conceptual ambiguity by re-conceptualizing authenticity, defining it as a holistic consumer assessment determined by six component judgements (accuracy, connectedness, integrity, legitimacy, originality, and proficiency) whereby the role of each component can change based on the consumption context. This definition emerges from a two-stage, multi-method concept reconstruction process leveraging data from more than 3,000 consumers across no less than 17 different types of consumption experiences. In stage one, they take a qualitative approach employing both in-depth interviews and surveys (one conducted on a nationally representative sample) to identify authenticity’s six constituent components. The final components are based on themes emerging from consumer data that were integrated and reconciled with existing definitions in the literature. In stage two, quantitative analyses empirically estimate the six components and support the composite formative nature of the construct. While the authors document how certain components contribute to assessments of authenticity differently across contexts, they also show authenticity has consumer-relevant downstream consequences while being conceptually distinct from consumer attitudes. Their findings offer practitioners direction regarding what to emphasize in order to convey authenticity to consumers.

scholarly journals المجتمع اللغوي: تعليم اللغة العربية في مجتمع متعدد اللغات بمعهد "الدينية للبنات" لامبونج

ASALIBUNA ◽  
2019 ◽  
Vol 3 (1) ◽  
Author(s):  
Ahmad Basyori
Keyword(s):  
Analytical Method ◽  
Language Teaching ◽  
Boarding School ◽  
Arabic Language ◽  
Qualitative Approach ◽  
Code Switching ◽  
Different Types ◽  
Linguistic Activity ◽  
The Impact ◽  
Main Language

This research aims to discover and analyze related aspects of teaching Arabic as follows: (1) the planning of teaching Arabic, (2) material that is used in the Arabic language teaching, (3) the steps of teaching Arabic, (4) the impact of multilingualism against linguistic activity in the boarding school. This research used the qualitative approach with descriptive analytical method. The results showed that: (1) The planning of teaching Arabic at the lodge include the planning of the boarding school as a whole by recruiting and assigning teachers with teaching Arabic competence, while planning of the teacher executed through a learning device; (2) Material that is used in the Arabic language teaching taken from a variety of different types of books; (3) The steps of Arabic language teaching are point to eclectic method using, with the help of code-switching and mixing from the Arabic language to the English or Bahasa; (4) The impact of multilingualism from language society at this Boarding School Lampung is the Arabic language teaching use the code-switching and mixing. And the multilingualism of multilingual society impact to many kinds of language activities, which is the Arabic language become the main language for using in this boarding school.

scholarly journals Everyday people’s patriotism in Russia: Possibilities and limitations of sociological study and typologization

2021 ◽  
Vol 21 (4) ◽  
pp. 891-902
Author(s):  
I. V. Trotsuk
Keyword(s):  
Case Studies ◽  
Qualitative Approach ◽  
Ethnographic Research ◽  
Discursive Practices ◽  
Sociological Study ◽  
Starting Point ◽  
Different Types ◽  
The Rich ◽  
Sociological Studies ◽  
Depth Interviews

The article is a review of the book by K. Clment Patriotism from Below. How Is It Possible That People Are So Poor in the Rich Country? (Moscow: NLO, 2021. 232 p.). The book is based on the results of the research project aimed at the detailed description of different types of everyday Russian patriotism with the help of the qualitative approach (in fact, case studies and semi-formalized interviews were conducted, although the book presents them as ethnographic research and in-depth interviews). The book identifies and describes the following types of the grassroot Russian patriotism which does not always coincide with the state patriotic discourse (patriotism from above): non-state and state everyday patriotism, non-patriotism, detached patriotism, and local patriotism. The review identifies both the undoubted merits of the book and its conceptual, methodological and analytical limitations which can become a starting point for further sociological studies of discursive practices and behavioral patterns of Russians, especially of those living in the Russian hinterland (depressed peripheral regions of the country).

Typology of social media followers: the case of luxury brands

2018 ◽  
Vol 36 (5) ◽  
pp. 558-571 ◽  
Author(s):  
Zahy Ramadan ◽  
Maya F. Farah ◽  
Armig Dukenjian
Keyword(s):  
Social Media ◽  
Design Methodology ◽  
Qualitative Approach ◽  
Luxury Brands ◽  
Content Type ◽  
Luxury Brand ◽  
Different Types ◽  
Social Media Platforms ◽  
Different Characteristics ◽  
Depth Interviews

Purpose Luxury brands tend to be hesitant in adopting social media. This matter has created an imminent need to understand the different types of online luxury followers so as to help luxury brands communicate effectively with their consumers, while maintaining the “luxe” image and experience. Accordingly, the purpose of this paper is to provide luxury brands with a deeper understanding of their online audience and the strategies needed to engage with them through the different social media platforms. Design/methodology/approach A qualitative approach was utilized in which 24 in-depth interviews were conducted with Lebanese followers of an online luxury brand’s social media pages. Findings The study identifies the presence of six main categories of online luxury followers: pragmatists, bystanders, trend hunters, image seekers, passionate owners, and prime consumers. Each group has a specific engagement and propensity to buy levels. Research limitations/implications Understanding the different segments of luxury brand followers provides a framework for marketing managers that allows them to correctly target their marketing and communication strategies in order to maximize consumer engagement and purchasing behaviors. Originality/value A significant gap exists in the extant literature which offers no understanding of the different luxury brand followers and their different characteristics. This study is the first to offer an exploratory typology of the various luxury brand followers on social media platforms.

Sign in / Sign up

Export Citation Format

Share Document