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Open access

Petr Lachout

References [1] AMEMIYA, T.: Regression analysis when the dependent variable is truncated normal, Econometrica 42 (1973), 999-1012. [2] BATES, D. M.-WATTS, D. G.: Nonlinear Regression Analysis and its Applications. John Wiley & Sons, New York, 1988. [3] CHEN, X. R.-WU, Y. H.: Strong consistency of M-estimates in linear model, J. Multivariate Anal. 27 (1988), 116-130. [4] DODGE, Y.-JUREˇCKOV´A, J.: Adaptive Regression. Springer-Verlag, New York, 2000. [5] HWANG, S. Y

Open access

Marlene Arangú and Miguel Salido

References Arangú, M., Salido, M. A. and Barber, F. (2010). AC2001-OP: An arc-consistency algorithm for constraint satisfaction problems, 23rd International Conference on Industrial Engineering and Other Applications of Applied Intelligent Systems, IEA/AIE 2010, Córdoba, Spain , pp. 219-228. Barták, R. (1999). Constraint programming: In pursuit of the Holy Grail, Proceedings of the Week of Doctoral Students (WDS99), Prague, Czech Republic , Part IV, pp. 555-561. Barták, R. (2001

Open access

V. Vostrovsky and J. Tyrychtr

consensus to maintain data consistency in collaborative environments. International Journal of Cooperative Information Systems, 26, article No. 1750002. doi: 10.1142/S0218843017500022. Howard A (2013): Governments looking for economic ROI must focus on open data with business value. O’Reilly Radar. http://radar.oreilly.com/2013/02/roi-open-data-economyvalue.html . Accessed 16 September, 2014. Huijboom N, Van den Broek T (2011): Open data: An international comparison of strategies. European Journal of ePractice, 12, 4-16. ISO/IEC 9126-1:2001. ISO

Open access

Lubomir Kolev

Abstract

Hull consistency is a known technique to improve the efficiency of iterative interval methods for solving nonlinear systems describing steady-states in various circuits. Presently, hull consistency is checked in a scalar manner, i.e. successively for each equation of the nonlinear system with respect to a single variable. In the present poster, a new more general approach to implementing hull consistency is suggested which consists in treating simultaneously several equations with respect to the same number of variables.

Open access

Vinko Bogataj and Gordana Žurga

Abstract

Background: Having efficient quality management system (QMS) is vital for improving organization’s business. In that context, good knowledge of QMS characteristics and their interrelations with organizational business results is very important.

Objectives: Purpose of the study is to explore characteristics of elements of QMS consistency in Slovene organizations that have implemented and maintained QMS, and how the QMS characteristics influence business results.

Methods/Approach: Data was collected through web survey of quality managers in organizations that have certified QMS according to ISO 9001:2008. For respondent organizations, data on their business results was retrieved from official sources. Special programme for comparisons and results presentation based on contingency analysis was developed, and correlation between QMS consistency elements and financial results of organizations were statistically processed.

Results: The results show that for Slovenian organizations with certified QMS, correlations between QMS consistency elements and organizational business results are confirmed. For the majority of consistency elements correlations are significant, and the elements where correlations are insignificant are also exposed.

Conclusions: As quality management will gradually become integral part of holistic organizational management, QMS will influence not only organizational management system and processes’ management but also directly on business results.

Open access

Mohsen Shafizadeh, Marc Taylor and Carlos Lago Peñas

Abstract

The purpose of this study was to examine the consistency of performance in successive matches for international soccer teams from Europe which qualified for the quarter final stage of EURO 2012 in Poland and Ukraine. The eight teams that reached the quarter final stage and beyond were the sample teams for this time series analysis. The autocorrelation and cross-correlation functions were used to analyze the consistency of play and its association with the result of match in sixteen performance indicators of each team. The results of autocorrelation function showed that based on the number of consistent performance indicators, Spain and Italy demonstrated more consistency in successive matches in relation to other teams. This appears intuitive given that Spain played Italy in the final. However, it is arguable that other teams played at a higher performance levels at various parts of the competition, as opposed to performing consistently throughout the tournament. The results of the cross-correlation analysis showed that in relation to goal-related indicators, these had higher associations with the match results of Spain and France. In relation to the offensive-related indicators, France, England, Portugal, Greece, Czech Republic and Spain showed a positive correlation with the match result. In relation to the defensive-related indicators, France, England, Greece and Portugal showed a positive correlation with match results. In conclusion, in an international soccer tournament, the successful teams displayed a greater degree of performance consistency across all indicators in comparison to their competitors who occasionally would show higher levels of performance in individual games, yet not consistently across the overall tournament. The authors therefore conclude that performance consistency is more significant in international tournament soccer, versus occasionally excelling in some metrics and indicators in particular games.

Open access

Anna Piszcz

Abstract

This paper attempts to address the question of how multilingualism in the EU might affect the consistency of private enforcement of competition law. In the literature, there have been concerns raised about the consistency of public enforcement of competition law, so in this paper attention has shifted to concerns about consistency of private enforcement. For the purposes of this paper, a distinction is drawn between rule-making and the application of competition law. The latter falls outside the scope of this paper. The article starts by going straight into aspects of public versus private enforcement of EU competition law and consistency of private enforcement of competition law. Next, by looking at examples of national rules implementing the EU Damages Directive, the author is going to discern what challenges for consistency of private enforcement of competition law are associated with the multilingualism in the EU.

Open access

Hao Wu and Yih-Chun Hu

Abstract

Location-Based Social Network (LBSN) applications that support geo-location-based posting and queries to provide location-relevant information to mobile users are increasingly popular, but pose a location-privacy risk to posts. We investigated existing LBSNs and location privacy mechanisms, and found a powerful potential attack that can accurately locate users with relatively few queries, even when location data is well secured and location noise is applied. Our technique defeats previously proposed solutions including fake-location detection and query rate limits.

To protect systems from this attack, we propose a simple, scalable, yet effective defense that quantizes the map into squares using hierarchical subdivision, consistently returns the same random result to multiple queries from the same square for posts from the same user, and responds to queries with different distance thresholds in a correlated manner, limiting the information gained by attackers, and ensuring that an attacker can never accurately know the quantized square containing a user. Finally, we verify the performance of our defense and analyze the trade-offs through comprehensive simulation in realistic settings. Surprisingly, our results show that in many environments, privacy level and user accuracy can be tuned using two independent parameters; in the remaining environments, a single parameter adjusts the tradeoff between privacy level and user accuracy. We also thoroughly explore the parameter space to provide guidance for actual deployments.

Open access

Morteza Daneshmand, Egils Avots and Gholamreza Anbarjafari

Abstract

This paper introduces a robust, real-time loop closure correction technique for achieving global consistency in 3D reconstruction, whose underlying notion is to back-propagate the cumulative transformation error appearing while merging the pairs of consecutive frames in a sequence of shots taken by an RGB-D or depth camera. The proposed algorithm assumes that the starting frame and the last frame of the sequence roughly overlap. In order to verify the robustness and reliability of the proposed method, namely, Proportional Error Back- Propagation (PEB), it has been applied to numerous case-studies, which encompass a wide range of experimental conditions, including different scanning trajectories with reversely directed motions within them, and the results are presented. The main contribution of the proposed algorithm is its considerably low computational cost which has the possibility of usage in real-time 3D reconstruction applications. Also, neither manual input nor interference is required from the user, which renders the whole process automatic.

Open access

Florentina Anghel

Abstract

Ian McEwan’s Amsterdam has supplied its readers with psychological, moral and social topical issues presented in an easy flowing and exhilarating style. Starting from the assumption that life consists of a series of inconsistencies which are inherent and bring their contribution to the individual’s formation, the paper aims at demonstrating that the protagonists’ judgmental and moral inconsistencies, which are used as a plot generator and are environmentally determined, reveal features of their personality.