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3-D active source tomography around Simeulue Island offshore Sumatra: Thick crustal zone responsible for earthquake segment boundary ArchiMer
Tang, Genyang; Barton, Penny J.; Mcneill, Lisa C.; Henstock, Timothy J.; Tilmann, Frederik; Dean, Simon M.; Jusuf, Muhammad D.; Djajadihardja, Yusuf S.; Permana, Haryadi; Klingelhoefer, Frauke; Kopp, Heidrun.
We present a detailed 3-D P-wave velocity model obtained by first-arrival travel-time tomography with seismic refraction data in the segment boundary of the Sumatra subduction zone across Simeulue Island, and an image of the top of the subducted oceanic crust extracted from depth-migrated multi-channel seismic reflection profiles. We have picked P-wave first arrivals of the air-gun source seismic data recorded by local networks of ocean-bottom seismometers, and inverted the travel-times for a 3-D velocity model of the subduction zone. This velocity model shows an anomalous zone of intermediate velocities between those of oceanic crust and mantle that is associated with raised topography on the top of the oceanic crust. We interpret this feature as a...
Tipo: Text Palavras-chave: Active-source tomography; Sumatra subduction zone; Segmentation; Plate interface.
Ano: 2013 URL: http://archimer.ifremer.fr/doc/00137/24834/22916.pdf
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A FELDOLGOZOTT FUNKCIONÁLIS ÉLELMISZEREK FOGYASZTÓI SZEGMENTÁLÁSA ÉS MAGATARTÁSI JELLEMZŐI AgEcon
Lehota, Jozsef; Komaromi, Nandor.
A funkcionális élelmiszerek (friss és feldolgozott) hozzáadott értéket jelentenek a fogyasztók és a termelők részére egyaránt. A funkcionális élelmiszerek értékesítésének üteme a világban és az újonnan megjelenő piacokon – köztük Magyarországon – meghaladja az élelmiszerek értékesítésének átlagos növekedési ütemét, de még jelenleg is csak réspiacnak tekinthető. A fogyasztói magatartást a Black – Campbell (2006) által adaptált, funkcionális élelmiszerválasztási modell alapján elemeztük. A primer kutatásunk 1060 fős 15 év feletti országos reprezentatív mintára épült. Az adatbázist az eredeti változók alapján K-közép módszerrel klasztereztük. A hazai funkcionális élelmiszerfogyasztókat 5 szegmensbe soroltunk be, amelyeket összehasonlítottunk és jellemeztünk....
Tipo: Book Palavras-chave: Funkcionális élelmiszer; Fogyasztói magatartás; Szegmentáció; Faktor és klaszterelemezés; Functional food; Consumer behaviour; Segmentation; Factor and cluster analyses; Consumer/Household Economics; Food Consumption/Nutrition/Food Safety; Marketing; Research Methods/ Statistical Methods.
Ano: 2008 URL: http://purl.umn.edu/43243
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A structuralist approach in the study of evolution and classification Naturalis
Hammen, L. van der.
A survey is given of structuralism as a method that can be applied in the study of evolution and classification. The results of a structuralist approach are illustrated by examples from the laws underlying numerical changes, from the laws underlying changes in the chelicerate life-cycle, and from the laws underlying the evolution of the chelicerate appendages. Suggestions are given for the study of the laws underlying the transformation of form, and some notes are made on structuring forces and the early stages of organic evolution. Some concluding remarks are finally made on deep structure, phylogenetic classification and evolution.
Tipo: Article / Letter to the editor Palavras-chave: Appendages; Chelicerata; Classification; Evolution; Increasing complexity; Individual; Laws of form; Life-cycle; Numerical changes; Primordial life; Segmentation; Sexuality; Structuralism; 42.21; 42.70.
Ano: 1985 URL: http://www.repository.naturalis.nl/record/319130
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ACEITAÇÃO E SEGMENTAÇÃO DO MERCADO DE PRODUTOS DERIVADOS DA CARNE DE PERU AgEcon
Pulici, Rodrigo; Alves, Flavio Rocha; Gameiro, Augusto Hauber.
Nos últimos anos, a avicultura brasileira tem apresentado grande crescimento na produção e a criação de perus acompanha - de certa forma - este desempenho. Como o frango de corte, grande parte da produção de carne de peru é exportada. Todavia, o frango de corte tem o consumo no mercado interno bastante consolidado, o que já não ocorre com o consumo de derivados de peru, que se apresenta bastante baixo, apesar do crescimento nos últimos cinco anos. A presente pesquisa analisou a estratégia de segmentação do mercado dos produtos à base de carne de peru, o comportamento de compra baseado nos preços desses produtos no varejo vis-à-vis os dos derivados de frango e as possíveis causas do baixo consumo per capita brasileiro. A pesquisa foi realizada em três...
Tipo: Conference Paper or Presentation Palavras-chave: Carne; Peru; Varejo; Consumidor; Segmentação; Meat; Turkey; Retail; Consumer; Segmentation; Livestock Production/Industries.
Ano: 2008 URL: http://purl.umn.edu/108968
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Analysis of calibrated seafloor backscatter for habitat classification methodology and case study of 158 spots in the Bay of Biscay and Celtic Sea ArchiMer
Fezzani, Ridha; Berger, Laurent.
An automated signal-based method was developed in order to analyse the seafloor backscatter data logged by calibrated multibeam echosounder. The processing consists first in the clustering of each survey sub-area into a small number of homogeneous sediment types, based on the backscatter average level at one or several incidence angles. Second, it uses their local average angular response to extract discriminant descriptors, obtained by fitting the field data to the Generic Seafloor Acoustic Backscatter parametric model. Third, the descriptors are used for seafloor type classification. The method was tested on the multi-year data recorded by a calibrated 90-kHz Simrad ME70 multibeam sonar operated in the Bay of Biscay, France and Celtic Sea, Ireland. It...
Tipo: Text Palavras-chave: Multibeam; Reflectivity; Backscatter angular response; Segmentation.
Ano: 2018 URL: https://archimer.ifremer.fr/doc/00423/53465/56648.pdf
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CHARACTERISTICS OF DIFFERENT CONSUMER SEGMENTS IN THE AUSTRALIAN BEEF MARKET AgEcon
Morales, Luis Emilio; Griffith, Garry R.; Wright, Vic; Umberger, Wendy J.; Fleming, Euan M..
Beef consumers in Australia have shown differences in their preferences for products and sensitivity to price. This can be explained by the influence on expected quality of cues related to health, production process and eating experience. Eating experience is difficult to predict as consumers generally do not have enough information to form reliable expectations. In this context, branded beef can help to signal quality and reduce the degree of uncertainty that consumers experience when shopping. Focus group research identified different segments, premiums for preferred products and potential for large-scale differentiation and branding in the Australian market.
Tipo: Conference Paper or Presentation Palavras-chave: Beef Branding; Consumer Preferences; Segmentation; Focus Groups..
Ano: 2009 URL: http://purl.umn.edu/48063
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Classificação orientada a objetos em imagens multitemporais ladsat aplicada na identificação de cana-de-açúcar e soja. Repositório Alice
SCHULTZ, B.; FORMAGGIO, A. R.; EBERHARDT, I. D. R.; SANCHES, I. D.; OLIVEIRA, J. C. de; LUIZ, A. J. B..
Resumo: A presente pesquisa teve por objetivo avaliar a potencialidade de dados multitemporais Landsat para classificação de cana-de-açúcar e de soja, conjuntamente, quando realizada via Análise de Imagens Orientada a Objetos (OBIA/ Random Forest). Foi utilizado um segmentador multi-resolução (SM) para gerar os polígonos (objetos). Um conjunto de 500 segmentações foi criado pela variação dos parâmetros Fe (fator de escala), Fm (forma) e Cp (compacidade), e avaliado pelo Índice de Avaliação da Segmentação (IAVAS). Da segmentação que obteve menor IAVAS, foram extraídos os atributos espectrais das médias e desvios-padrão das bandas TM/Landsat-5 [setembro (S) e outubro (O) do ano 2000] e ETM+/Landsat-7 [fevereiro (F) e março (M) do ano 2001] dos objetos, e...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave:  Segmentação; Mapeamento; Segmentation; IAVAS; Sugarcane and soybean mapping; Sensoriamento remoto; Imagem de satélite; Mapeamento; Cana de açucar; Soja.
Ano: 2016 URL: http://www.alice.cnptia.embrapa.br/handle/doc/1060377
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Consumer Preferences for Quality Foods from a South European Perspective: A Conjoint Analysis Implementation on Greek Olive Oil AgEcon
Krystallis, Athanasios; Ness, Mitchell.
The objective of the present study is to describe the preferences of younger, more educated and higher income Greek consumers for "quality" olive oil brands - quality being defined as a bundle of extrinsic quality cues such as quality assurance labels, health-related information, country-of-origin indication, bottling material and price. The aim of the research is, with the implementation of a conjoint analysis task, to describe and analyze consumer preferences using a random, stratified, sample of urban consumers. The extrinsic quality attributes of olive oil, strongly linked to a previous qualitative, Means-end Chains (MEC) analysis survey, is used as starting points for the development of conjoint profiles. Special emphasis is given to the development...
Tipo: Journal Article Palavras-chave: Quality extrinsic cues; Conjoint analysis; Segmentation; Market shares; Consumer/Household Economics; Food Consumption/Nutrition/Food Safety.
Ano: 2005 URL: http://purl.umn.edu/8161
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Consumption patterns in the market of pork and pork products AgEcon
Szakaly, Zoltan; Horvath-Kovacs, Bernadett; Polereczki, Zsolt; Nabradi, Andras.
Pork is a source of nutrients essential for the human body but still it is regarded by consumers as a non-healthy product. The main objective of the study was to analyse consumption patterns concerning pork products and to define alternative target markets in bigger Hungarian towns. In the course of the research, 494 people, representative of the base population, were questioned. According to the results obtained, the consumers’ opinion and the already formed image are less favourable regarding pork than poultry in almost all respects. Respondents regarded pork as an out-of-date, slightly boring and aging product. The applied cluster analysis identified five different consumer segments. Among them, rational young consumers represent the primary target...
Tipo: Journal Article Palavras-chave: Pork; Consumption patterns; Segmentation; Re-positioning; Marketing.
Ano: 2009 URL: http://purl.umn.edu/52197
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Contribution of automatic classification of sonar images for long term registration ArchiMer
Leblond, Isabelle; Legris, M; Solaiman, B.
This issue handles the ability of using segmentation results of sidescan sonar images for long term registration. This study take a part of AUV (Autonomous Underwater Vehicle) navigation problems, particularly to correct the drift of navigation sensors. Principle of images formation with this type of engines and the main properties are first reminded. Some images are shown, which allows us to understand difficulties of this type of data to realise AUV positioning. Then, we decide that segmentation results of sidescan images provide us landscapes on which registration will be able. Segmentation is then explained. It is supervised type on five classes, rocks, ripples, sand, mud and shadow. Using Gabor filters provides classifying parameters and...
Tipo: Text Palavras-chave: Gabor filters; Classification; Segmentation; Registration; Sonar images; Filtres de Gabor; Classification; Segmentation; Recalage; Images sonar.
Ano: 2008 URL: http://archimer.ifremer.fr/doc/2008/publication-5291.pdf
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Détection automatique par visionique des Dinophysis spp. contenus dans des échantillons d'eau de mer. Premiers résultats ArchiMer
Le Dean, Loic; Gauthier, Franck.
Nous avons réalisé cette étude dans le but de fournir aux agents d'IFREMER chargés de la surveillance des eaux littorales et en particulier de la flore phytoplanctonnique, un outil permettant d'identifier et de compter les cellules de Dinophysis de façon automatique. La visionique nous semblant être une discipline qui se prêtait à ce type de détection, nous avons réalisé une étude de faisabilité d'un système d'analyse d'il}1age appliqué à la reconnaissance et au comptage de Dinophysis. Le capteur utilisé est une caméra J.V.C Tri C.C.D transmettant trois images (rouge - verte - bleue) à un ordinateur compatible A.T.. Celui ci est équipé d'un ensemble de cartes MATROX de numérisation et traitement d'images et d'un coprossesseur arithmétique. Les applications...
Tipo: Text Palavras-chave: Dinophysis; Phytoplancton; Visionique; Reconnaissance de forme; Segmentation; Binarisationcontours.
Ano: 1991 URL: http://archimer.ifremer.fr/doc/00136/24714/22768.pdf
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Explaining Variation in Farm and Farm Business Performance in Respect to Farmer Segmentation Analysis AgEcon
Wilson, Paul; Harper, Nicholas; Darling, Richard.
Results from a pilot application of Defra’s segmentation model applied to the Farm Business Survey for England are presented. Interviews with 750 FBS co-operators during 2010, using a discursive approach, classified co-operators into one of five segmentation groups: Custodians (14.0%); Lifestyle Choice (7.2%); Pragmatists (53.3%); Modern Family Business (21.1%); Challenged Enterprises (4.4%). On average, Modern Family Businesses operated the largest land area, achieved the greatest farm financial (and agricultural) output, and Farm Business Income (FBI), whilst the Lifestyle Choice segment returned the lowest average FBI. Variation in regional tendencies across the segmentation groups was observed, with variation also noted for forms of business, LFA and...
Tipo: Conference Paper or Presentation Palavras-chave: Behaviour; Segmentation; Income; Output; Agriculture; Farm Management; D22; Q12; Q14; Q15; Q16; R52.
Ano: 2011 URL: http://purl.umn.edu/108783
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Food retailing and prices in Slovenia AgEcon
Bojnec, Stefan.
This paper focuses on agro- food chains and agro- food consumer prices in Slovenia considering its European Union (EU) membership. As the Slovenian agro- food markets were distorted prior to the EU accession with some agro- food prices that were greater than comparable EU prices, the empirical results confirm that with the EU membership Slovenian real agro- food consumer prices have largely downward adjusted. Besides policy changes, internalization of retailing and distribution chains by entries of supermarket s and hypermarket s have had impacts on market structures and rationalization of marketing activities. Supermarket s and hypermarket s are taking over a substantial proportion of retail trade in agro- food products with implications on increasing...
Tipo: Conference Paper or Presentation Palavras-chave: Marketing; Segmentation; Price Adjustments; Slovenia.; Agribusiness.
Ano: 2006 URL: http://purl.umn.edu/10106
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Identificação de elementos específicos das folhas do algodoeiro em imagens com fundos complexos. Repositório Alice
BARBEDO, J. G. A..
Resumo: O uso de técnicas de processamento digital de imagens e visão computacional na análise foliar frequentemente depende de uma separação prévia das folhas das plantas do restante da cena. Essa segmentação pode ser um problema de difícil solução se as condições não são estritamente controladas, sendo particularmente desafiadores os casos em que várias folhas, muitas vezes sobrepostas, estão presentes na cena. Nesses casos, qualquer informação capaz de ajudar na localização das folhas é de grande utilidade. Nesse contexto, este artigo apresenta um método para identificar o nó principal e a nervura principal de folhas do algodoeiro, o que fornece informações valiosas sobre a posição e orientação dessas folhas. A única restrição à qual o método está...
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: Nervuras; Folhas do algodoeiro; Imagens digitais; Segmentação; Venations; Cotton leaves; Segmentation; Cotton; Digital images.
Ano: 2014 URL: http://www.alice.cnptia.embrapa.br/handle/doc/1000897
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Image Analysis of Oxidative and Glycolytic Muscle Fibers During Reperfusion Injury by Segmentation Based on Regions International Journal of Morphology
Rosero-Salazar,Doris Haydee.
Different situations cause ischemia and reperfusion injury, affecting tissues under the level of compression. In this research, abnormal characteristics in distribution of muscle fibers types in soleus and extensor carpi radialis longus, during short periods of ischemia and short and long periods of reperfusion, were determined. Fibers were classified by enzyme histochemistry techniques NADH-TR and myosin-ATPase. Measurements of areas were carried out through semiautomatic image processing by using segmentation based on regions, which evidenced significant changes in distribution during reperfusion followed to one and three hours of ischemia, as well as in comparisons of areas for all periods of reperfusion. This study strengthens the evidence about using...
Tipo: Journal article Palavras-chave: Histochemistry; Ischemia; Reperfusion; Image analysis; Segmentation; Histoquímica; Isquemia; Reperfusión; Análisis de imágenes; Segmentación.
Ano: 2016 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022016000100019
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Preference study using a latent class approach. Analysis of European preferences for smoked salmon ArchiMer
Semenou, Michel; Courcoux, Philippe; Cardinal, Mireille; Nicod, Huguette; Ouisse, Alexandra.
We present in this paper the advantages of the latent class vector model approach in the analysis of preference ratings. We illustrate the practical application of this methodology on the basis of a preference study of smoked salmons in European countries. A set of 30 samples was selected spanning the characteristic variability of cold-smoked salmon available in six European countries (Belgium, Denmark, France, Germany, Italy and the United Kingdom). Consumers from the main countries of consumption (Belgium, France, Italy, Germany and the United Kingdom) were asked to rate the acceptability of each product. A quantitative descriptive analysis with a trained panel and physical and chemical measurements of smoked salmons were also conducted. Using a latent...
Tipo: Text Palavras-chave: Latent class vector model; Segmentation; Preference mapping; Smoked salmon; Consumer preferences; Sensory analysis.
Ano: 2007 URL: http://archimer.ifremer.fr/doc/2007/publication-2677.pdf
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Preferences, trust and willingness to pay for food information: An analysis of the Italian Market AgEcon
Nocella, Giuseppe; Stefani, Gianluca; Romano, Donato.
Lack of consumer trust and communication strategies are probably the main determinants of information failure in modern food markets. This study attempts to tackle these aspects affecting the quality of food information by investigating questions related to what topics are more relevant to consumers, who should disseminate trustful food information, and how communication should be conveyed. Primary data were collected both through qualitative (in depth interviews and focus groups) and quantitative research. Quantitative research was conducted by means of a questionnaire administered in 2006-2007 to a sample of Italian respondents using both a web and a traditional mail survey. Reading preferences, willingness to pay and trust towards public and private...
Tipo: Conference Paper or Presentation Palavras-chave: Food information; Trust; Preference heterogeneity; Segmentation; Italy; Food Consumption/Nutrition/Food Safety; D12; D18; D89; Q18.
Ano: 2011 URL: http://purl.umn.edu/114606
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Public Policies and the Demand for Vegetables AgEcon
Gustavsen, Geir Waehler; Rickertsen, Kyrre.
Increased consumption of vegetables may reduce obesity and the prevalence of cardiac diseases and cancer. Norwegians consume less vegetables than nutrition experts recommend and the per capita consumption is lower than in most European countries. To investigate the causes of low consumption, a two-step approach is used to estimate the demand segmented by nine different household types. In the first step, a probit model is estimated to investigate the decision whether to purchase traditional vegetables, salad vegetables, and industrially processed vegetables. Conditional on purchase, an almost ideal demand model is used to model how much to purchase. The own-price elasticities and total expenditure elasticities are high for traditional and industrially...
Tipo: Conference Paper or Presentation Palavras-chave: Vegetables; Demand; Segmentation; Household types; Policies; Demand and Price Analysis.
Ano: 2002 URL: http://purl.umn.edu/24885
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Quality Assurance and other Marketing Management Elements as Key Success Factors for Entering a New Market: a Case Presentation of Functional Food Market in Indonesia AgEcon
Puspa, Jofi; Kuhl, Rainer.
Based on its distinctive profiles functional-food (FF) can be considered as a mixture of food and pharmaceutical items. Apparently, these different characteristics that exist beyond conventional food products contribute success of the commercialization of new innovative FFs. Therefore, assumption can be made by arguing that for the marketing a FF a distinctive marketing-strategic beyond the one usually used for the conventional food products must be employed. This study was pursued with the main aims to understand the consumer’s psychological factors and to find out elements important to setting up the marketing strategy. These two findings will be then used as basis for designing a distinctive marketing strategy for a FF. We found that consumer’s...
Tipo: Conference Paper or Presentation Palavras-chave: Product quality; Communication; Segmentation; Key success factors for market entry; Functional food in Indonesia.; Financial Economics; International Relations/Trade.
Ano: 2007 URL: http://purl.umn.edu/7848
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Region based variational approach for the segmentation textured sonar images ArchiMer
Karoui, Imen; Fablet, Ronan; Boucher, Jean-marc; Augustin, Jean-marie.
We propose a new region-based segmentation of textured sonar images with respect to seafloor types. We characterize sea-floor types by a set of empirical distributions estimated on texture responses to a set of different filters and we introduce a novel similarity measure between sonar textures in this attribute space. Our similarity measure is defined as a weighted sum of Kullback-Leibler divergences between texture features. The texture similarity measure weight setting is twofold: first we weight each filter, according to its discrimination power, the computation of these weights are issued from the margin maximization criterion, Second, we add an additional weighting, evaluated as an angular distance between the incidence angles of the compared texture...
Tipo: Text Palavras-chave: Level sets; Active regions; Segmentation; Angular backscattering; Feature selection; Sonar images; Texture.
Ano: 2008 URL: http://archimer.ifremer.fr/doc/2008/publication-6120.pdf
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