Search results for "WSI"

Metric Learning in Histopathological Image Classification: Opening the Black Box

2023

The application of machine learning techniques to histopathology images enables advances in the field, providing valuable tools that can speed up and facilitate the diagnosis process. The classification of these images is a relevant aid for physicians who have to process a large number of images in long and repetitive tasks. This work proposes the adoption of metric learning that, beyond the task of classifying images, can provide additional information able to support the decision of the classification system. In particular, triplet networks have been employed to create a representation in the embedding space that gathers together images of the same class while tending to separate images w…

Diagnostic therapeutic flow-charts for low-back pain patient : the Italian clinical guidelines

2006

Exploring User Behavior in Destination Websites: An Application of Web Mining Techniques

2021

The development of the Internet has so strongly affected the way a tourist destination can be promoted that portals now play an important role in defining the marketing strategies of tourist destinations. Hence, investigating website surfing behavior has become crucial to understanding the needs of potential tourists. Using Web Mining techniques, our study explores the information-seeking behavior of those who log on to a website promoting the island of Sicily, a well known tourist destination in the South of Italy. The study explores whether a tourist’s country of origin affects their information needs and surfing behavior. Actually, our results do show differences in behavior between user…

Hypersonnia in children affected by migraine whitout aura: a questionnaire-based case-control study

2013

Analyse multirésolution pour la recherche et l'indexation d'images par le contenu dans les bases de données images - Application à la base d'images p…

2005

Recent content-based image retrieval systems offer an interactive visual browsing of images databases. These methods perform a classification of images (offline) into a search tree for users browsing (online). This approach shows three main problems:1) The size of decriptor vector (n>100) makes distance computing sensitive to dimensionality curse,2) Having many different kinds of attributes into descriptor vector does not help classification,3) In general, classification does not take in consideration users' search context. In this work, we propose a method based on building hierarchical signatures having small increasing sizes, this allows to take users' search context into consideration. …

Browsing hinders the regeneration of broadleaved trees in uneven-aged forest management in southern Finland

2020

Uneven-aged forest management has attained increasing popularity. It may benefit biodiversity, buffer against pests and abiotic damages, decrease runoff from clearcuts and improve recreational values. We studied how gap cuttings and single-tree selection cuttings influence browsing damage in spruce-dominated forests in south-central Finland. Overall, browsing damage was especially frequent in aspen and rowan, but also in birch. The larger the basal area left in harvesting, the lower the browsing pressure on birch and rowan; neither the harvesting method nor the seedling density had an independent effect on browsing damage. Although larger tree retention levels may reduce browsing damage, th…

Changes in farmers’ participation in rural Organizations of Opolszczyzna Region

2016

W artykule podjęto próbę określenia zmian w zakresie samoorganizacji społeczności wiejskiej Opolszczyzny z uwzględnieniem konstruktu kapitału społecznego. W tym celu wykorzystano dane uzyskane od osób kierujących gospodarstwami rolnymi zamieszkałych w wybranych gminach Opolszczyzny. Zostały one zebrane za pomocą kwestionariusza wywiadu. Zawarte w nim pozycje umożliwiły określenie zmian, jakie zaszły w latach 2008–2014, m.in. pod względem: przynależności respondentów do różnych organizacji samorządu wiejskiego, sposobu postrzegania przez rolników efektów działań tych instytucji czy postrzegania przez kierowników gospodarstw rolnych możliwości wywierania wpływu przez różne podmioty na sytuacj…

Hypersomnia in children affected by migraine without aura: a questionnaire-based case-control study

2013

Maria Esposito,1 Michele Roccella,2 Lucia Parisi,2 Beatrice Gallai,3 Marco Carotenuto11Center for Childhood Headache, Unit of Child and Adolescent Neuropsychiatry, Department of Mental Health, Physical, and Preventive Medicine, Second University of Naples, Naples, Italy; 2Child Neuropsychiatry, Department of Psychology, University of Palermo, Palermo, Italy; 3Unit of Child and Adolescent Neuropsychiatry, University of Perugia, Perugia, ItalyBackground: The relationship between sleep and headache is meaningful and complex. Children affected by migraines tend to show many sleep disorders, such as insufficient sleep duration and excessive daytime somnolence. Therefore, the aim of this study is…

Clickstream Data Analysis: A Clustering Approach Based on Mixture Hidden Markov Models

2023

Nowadays, the availability of devices such as laptops and cell phones enables one to browse the web at any time and place. As a consequence, a company needs to have a website so as to maintain or increase customer loyalty and reach potential new customers. Besides, acting as a virtual point-of-sale, the company portal allows it to obtain insights on potential customers through clickstream data, web generated data that track users accesses and activities in websites. However, these data are not easy to handle as they are complex, unstructured and limited by lack of clear information about user intentions and goals. Clickstream data analysis is a suitable tool for managing the complexity of t…

Program odnowy wsi oraz fundusz sołecki jako instrumenty poprawiające jakość kapitału społecznego obszarów wiejskich

2020

Odnowa wsi jako metoda rozwoju stanowi jeden ze sposobów osiągania celów rozwojowych, rozumianych nie tylko w kontekście poprawy jakości infrastruktury, ale poprawy szeroko rozumianej jakości życia, której nie osiągniemy bez zaangażowania samych mieszkańców. Fundusz sołecki jest instrumentem realizacji społecznie pożądanych inicjatyw oddolnych jako element partycypacji społecznej. Celem rozdziału jest przedstawienie realizacji działań finansowanych w ramach Programu Odnowy Wsi oraz Funduszu Sołeckiego (na przykładzie gminy Dąbrowa) jako elementu pobudzającego społeczności lokalne, wzmacniającego kapitał społeczny. Rozdział ma charakter teoretyczno-empiryczny. W części teoretycznej, przedsta…