Search results for "SIMILARITY"
showing 10 items of 474 documents
The Importance of Friendship in the Construction of Positive Nations
2013
This chapter is written by two Argentineans, Graciela Tonon and Lia Rodriguez de la Vega, and brings interesting data from their own studies regarding friendship as relational glue for a positive nation. Departing from the results gathered, where friendship emerged as the variable ranked with the highest value for the people interviewed, they define the concept and its typologies and connect it with the idea of a positive nation, with Martin Seligman’s flourishing model, and, finally, with Aristotle’s idea of friendship as community. Alongside the chapter, we can understand, through the testimonies and words of the interviewed, the dynamic perspectives regarding friendship as an instrument …
Discovering Homophily in Online Social Networks
2018
During the last ten years, Online Social Networks (OSNs) have increased their popularity by becoming part of the real life of users. Despite their tremendous widespread, OSNs have introduced several privacy issues as a consequence of the nature of the information involved in these services. Indeed, the huge amount of private information produced by users of current OSNs expose the users to a number of risks. The analysis of the users’ similarity in OSNs is attracting the attention of researchers because of its implications on privacy and social marketing. In particular, the homophily between users could be used to reveal important characteristics that users would like to keep hidden, hence …
Improving structural similarity based virtual screening using background knowledge
2013
Background Virtual screening in the form of similarity rankings is often applied in the early drug discovery process to rank and prioritize compounds from a database. This similarity ranking can be achieved with structural similarity measures. However, their general nature can lead to insufficient performance in some application cases. In this paper, we provide a link between ranking-based virtual screening and fragment-based data mining methods. The inclusion of binding-relevant background knowledge into a structural similarity measure improves the quality of the similarity rankings. This background knowledge in the form of binding relevant substructures can either be derived by hand selec…
GESTALT-INSPIRED FEATURES EXTRACTION FOR OBJECT CATEGORY RECOGNITION
2013
International audience; We propose a methodology inspired by Gestalt laws to ex- tract and combine features and we test it on the object cat- egory recognition problem. Gestalt is a psycho-visual the- ory of Perceptual Organization that aims to explain how vi- sual information is organized by our brain. We interpreted its laws of homogeneity and continuation in link with shape and color to devise new features beyond the classical proxim- ity and similarity laws. The shape of the object is analyzed based on its skeleton (good continuation) and as a measure of homogeneity, we propose self-similarity enclosed within shape computed at super-pixel level. Furthermore, we pro- pose a framework to …
Visual grouping under isoluminant condition: impact of mental fatigue
2016
Instead of selecting arbitrary elements our visual perception prefers only certain grouping of information. There is ample evidence that the visual attention and perception is substantially impaired in the presence of mental fatigue. The question is how visual grouping, which can be considered a bottom-up controlled neuronal gain mechanism, is influenced. The main purpose of our study is to determine the influence of mental fatigue on visual grouping of definite information – color and configuration of stimuli in the psychophysical experiment. Individuals provided subjective data by filling in the questionnaire about their health and general feeling. The objective evidence was obtained in t…
When WORDS with Higher-frequency Neighbours Become Words with No Higher-frequency Neighbour (Or How to Undress the Neighbourhood Frequency Effect)
2000
Abstract “SATOR AREPO TENET OPERA ROTAS” (The ploughman, with his plough, manages the work) The influence of lexical similarity on word recognition has been discussed not only because of its theoretical impact but also because it is difficult to replicate. Among the multiplicity of the causes of this inconsistency one reason can be that different words were used in comparing words with higher-frequency neighbours (HFN) and words without HFN. In this experiment we chose French words for which the neighbourhood changes when they are written in UPPER case or in lower case. For example ‘DEFI’ has one HFN (‘DEMI’) but when it is displayed in lower case ‘defi’ has no HFN because ‘demi’ has no acc…
A Light Insight into Latvian and Lithuanian ICT Terminology: Whether Kindred Language Imply Kindred Terminology?
2018
Lithuanian and Latvian are two closely related languages, the only two of the Baltic branch of Indo-European languages. They are quite similar and share a great deal of vocabulary and grammar features, but not close enough to make conversation possible. The paper reveals that commonalities between Latvian and Lithuanian information and communication technologies (ICT) terms are mostly due internationalisms, there are only small proportion of terms with common Baltic word-roots; influence of English language in Latvian and Lithuanian ICT terminology is moderate, if not minor; deliberately or unawares, Lithuanian terminologists follow the same rules as their Latvian counterparts.
Adaptive Vocabulary Learning Environment for Late Talkers
2016
The main aim of this research is to provide children who have an early language delay with an adaptive way to train their vocabulary taking into account individuality of the learner. The suggested system is a mobile game-based learning environment which provides simple tasks where the learner chooses a picture that corresponds to a played back sound from multiple pictures presented on the screen. Our basic assumption is that the more similar the concepts (in our case, words) are, the harder the recognition task is. The system chooses the pictures to be presented on the screen by calculating the distances between the concepts in different dimensions. The distances are considered to consist o…
New-stage discharge relationship for weirs of finite crest lenght
2014
AbstractThe flow process of weirs of finite crest length is analyzed on the basis of the dimensional analysis and incomplete self-similarity theory. The crest length is incorporated in the functional stage-discharge relationship for weirs of finite crest length. The theoretically deduced stage-discharge formula was then calibrated using the experimental data compiled in this research. According to the current experimental data it is also concluded that the performance of the proposed stage-discharge formula is better than the previous dimensional stage-discharge formulae. Also, the proposed stage-discharge formula is applicable for all types of the weirs, i.e., long-crested, broad-crested, …
Verification of Web traffic burstiness and self-similarity for multiple online stores
2017
Developing realistic Web traffic models is essential for a reliable Web server performance evaluation. Very significant Web traffic properties that have been identified so far include burstiness and self-similarity. Very few relevant studies have been devoted to e-commerce traffic, however. In this paper, we investigate burstiness and self-similarity factors for seven different online stores using their access log data. Our findings show that both features are present in all the analyzed e-commerce datasets. Furthermore, a strong correlation of the Hurst parameter with the average request arrival rate was discovered (0.94). Estimates of the Hurst parameter for the Web traffic in the online …