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Content-based image retrieval using a signature graph and a self-organizing map

. and Hamid, Z. (2011). EMD similarity measure and metric access method using EMD lower bound, International Journal of Computer Science & Emerging Technology 2(6): 323-332. Bartolini, I., Ciaccia, P. and Patella, M. (2010). Query processing issues in region-based image databases, Knowledge and Information Systems 25(2): 389-420. Chappell, T. and Geva, S. (2013). Efficient top-k retrieval with signatures, Proceedings of the 18th Australasian Document Computing Symposium, ADCS’13, Brisbane, Australia, pp. 10-17. Wang

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Ontology optimization tactics via distance calculating

represents a relationship (or potential link) between two concepts (objects or elements). Let O be an ontology and G be a simple graph corresponding to O . It can be attributed to getting. We use the similarity calculating function, the nature of ontology engineer application to compute the similarities between ontology vertices, which represent the intrinsic link between vertices in ontology graph. The ontology similarity measuring function is obtained by measuring the similarity between vertices from different ontologies. That is the goal of ontology mapping. The

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UARR: A Novel Similarity Measure for Collaborative Filtering Recommendation

Abstract

User similarity measurement plays a key role in collaborative filtering recommendation which is the most widely applied technique in recommender systems. Traditional user-based collaborative filtering recommendation methods focus on absolute rating difference of common rated items while neglecting the relative rating level difference to the same items. In order to overcome this drawback, we propose a novel user similarity measure which takes into account the degree of rating the level gap that users could accept. The results of collaborative filtering recommendation based on User Acceptable Rating Radius (UARR) on a real movie rating data set, the MovieLens data set, prove to generate more accurate prediction results compared to the traditional similarity methods.

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A simple multi-feature based stereoscopic medical image retrieval system

Abstract

This paper describes a method of retrieving stereoscopic medical images from the database that consists of feature extraction, similarity measure, and re-ranking of retrieved images. This method retrieves similar images of the query image from the database and re-ranks them according to the disparity map. The performance is evaluated using the metrics namely average retrieval precision (APR) and average retrieval rate (ARR). According to the performance outcomes, the multi-feature based image retrieval using Mahalanobis distance measure has produced better result compared to other distance measures namely Euclidean, Minkowski, the sum of absolute difference (SAD) and the sum of squared absolute difference (SSAD). Therefore, the stereo image retrieval systems presented has high potential in biomedical image storage and retrieval systems.

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Similarity of Changes in Average Prices of Residential Properties in Europe in 2010-2016

Abstract

The aim of the article was to assess the similarities of average price changes in the residential market in 34 European countries in 2010-2016. The first part of the study concerned tendencies of changes in average prices in residential markets in the studied countries, while the second part analyzed co-occurrence of changes in these countries in time. The study covered the period after the first wave of the financial crisis in Europe and took into account the second wave of crisis in several euro area countries. Price indices, trend functions, price ranges, linear correlation coefficients and shape similarity measure were utilized for conducting this study.

European countries, in general, differed with respect to changes in prices in the residential market. 12 countries were characterized by a trend of increasing price indices. 18 countries were classified as correcting countries, as during the studied period they were distinguished by a clear change in trend. Four countries with a downward trend during the study period were also identified. Furthermore, a differentiation between the countries was found due to the values of price ranges during the studied period. Studies of co-occurrence in time were conducted with the use of linear correlation coefficients mainly for groups of rising countries and falling countries. The study was conducted using measures of shape similarity, which allowed for an identification of converging, leading and following markets for some countries.

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Employing Similarity Measures to Examine the Development of Technical Infrastructure in Polish Counties

Employing Similarity Measures to Examine the Development of Technical Infrastructure in Polish Counties

The article presents a comparison made with reference to three similarity measures and Minkowski measures, namely urban measure, the Euclidean measure and Chebyshev measure, as well as the variants of the Euclidean measure and square of the Euclidean measure. Their properties were compared and synthetic measures were created on this basis. Infrastructural-technical variables referring to Polish counties were used as data in the creation of measures.

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Affine Transformation Based Ontology Sparse Vector Learning Algorithm

similarity function S and to determine a suitable parameter M according to detailed applications. There are several effective learning tricks in ontology similarity measure and ontology mapping. Gao and Zhu [ 12 ] studied the gradient learning algorithms for ontology similarity computing and ontology mapping. Gao and Xu [ 13 ] obtained the stability analysis for ontology learning algorithms. Gao et al. [ 14 ] manifested an ontology sparse vector learning approach for ontology similarity measuring and ontology mapping based on ADAL trick. Gao et al. [ 15 ] researched

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Fuzzy Similarity and Fuzzy Inclusion Measures in Polyline Matching: A Case Study of Potential Streams Identification for Archaeological Modelling in GIS

similarity measures on fuzzy sets and on elements. Fuzzy Sets and Systems, 85(3), 305-309. doi: 10.1016/0165-0114(95)00365-7. Wilson, J. P., Aggett, G., Yongxin, D. & Lam, C. S. (2008). Water in the Landscape: A Review of Contemporary Flow Routing Algorithms. In: Advances in Digital Terrain Analysis. Springer Berlin Heidelberg, Berlin, Heidelberg, 213-236. doi: 10.1007/978-3-540-77800-4_12. Wygralak, M. (1983). Fuzzy inclusion and fuzzy equality of two fuzzy subsets, fuzzy operations for fuzzy subsets. Fuzzy Sets and Systems, 10(1-3), 157

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Application of Vegetation Similarity Measure to Assess Habitat Naturalness: A Description of Plant Stand Syngenesis as a Management Qualifier

Application of Vegetation Similarity Measure to Assess Habitat Naturalness: A Description of Plant Stand Syngenesis as a Management Qualifier

This paper represents an extension of a previously published wider conceptual article (Kovář 2007). It introduces an original approach of how to assess the naturalness of a habitat, in connection with the landscape ecological framework and surveillance and monitoring of biodiversity of habitats in Central Europe (Bunce et al. 2005, Bunce et al. 2007). Initially, it was referred to in an oral presentation by the author within the BioHab (Biodiversity and Habitats, EU Fifth Framework programme) workshop, held in Prague (Kovář 2004a).

The degree of plant stand similarity, as an expression of different naturalness/syngenesis indicated by the Jaccard index, is used to describe forest management history. This management qualifier can be used especially in countries possessing good phytosociological traditions in vegetation science, with experience in applying habitat classifications and land use planning.

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Process of Ageing of Śląskie Voivodship Population Until 2035

Process of Ageing of Śląskie Voivodship Population Until 2035

The article presents changes in the structure of population by age in Śląskie voivodship between 1990 and 2035. The similarity of structures has been studied with the use of taxonomic algorithm and the time distributions of senility and load indices of the population in general while taking sex and place of residence into consideration have been presented. The process of population ageing is more and more intensive. Less and less numerous age groups that reach the productive age and more and more numerous age groups that enter the retirement age show that Śląskie voivodship, similarly to the whole area of Poland and other European countries, will have to face the problem of population ageing. This challenge is particularly hard to confront because of the low level of professional activity of the people over 50 years of age.

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