Search results for "ANKI"

Ranking and unrankingk-ary trees with a 4k –4 letter alphabet

1997

Abstract The problem of the direct generation in A-order of binary trees was stated by Zaks in 1980. In 1988 Roelants van Baronaigien and Ruskey gave a solution for k-ary trees with n internal nodes using an encoding sequence of kn+1 integers between 1 and n. Vajnovszki and Pallo improved this result for binary trees in 1994 using words of length n–1 on a four letter alphabet. Recently Korsh generalized the Vajnovszki and Pallo’s generating algorithm to k-ary trees using an alphabet whose cardinality depends on k but not on n. We give in this paper ranking and unranking algorithms for k-ary trees using the Korsh’s encoding scheme.

Social Space for Self-Organising: An Exploratory Study of Timebanks in Finland and in the UK

2018

The article examines the challenges to self-organisation and upscaling of alternative economies from the viewpoint of defending and negotiating social space. Timebanks in Finland and the UK are presented as examples, analysing the difference of defending such social space in the contexts of a traditional welfare state (in the case of Finland) and an austerity-driven government with a “Big Society” ideology (in the case of UK). Both systems of government present different kinds of pressures on timebanks, pushing them to a given ontological categories and to action in accordance with pre-defined political goals. This difference, along with timebank reactions and the question of prospects of o…

The Global Research Collaboration of Network Meta-Analysis: A Social Network Analysis

2016

et al.

Stefano Battilossi y Youseef Cassis (eds.): European Banks and the American Challenge. Competition and Cooperation in International Banking under Bre…

2002

Ranking Lists and European Framework Programmes

2011

The operational context for higher education institutions has become increasingly competitive: universities have to compete on national and international markets for students, staff, funding and prestige. The emergence of various markets, market mechanisms and competition in higher education have become a well-established and much discussed fact, and have shaped the dynamics of the higher education arena (Enders & Jongbloed 2007; Texeira et al. 2004) In a global competition of knowledge societies, higher education institutions have been vested with the task of economic and social change, and are expected to contribute to the competitiveness of nationstates as well as their local communities.

Tournament structure and nations' success in women's professional tennis

2007

The relationship between domestic professional tournament structure in women's tennis and the subsequent professional ranking success of a nation's female players is examined. The 2003 women's professional tennis tournament calendar provided the distribution of events in 33 countries. Criteria used to classify nations' success in women's professional tennis were as follows: number of players with Women's Tennis Association (WTA) points, number of players with Top 200 rankings, and the combined WTA ranking of a nation's Top 5 female players. Pearson product - moment correlations were performed between the number of tournaments and the three criteria. Considerable variation was observed in th…

The role of compliance in Italian banking system

2017

Purpose This paper aims to analyze the role of compliance in Italian banking system and to verify its efficiency in terms of protection of stability and credibility of financial institutions, comparing solutions adopted in other European countries. Design/methodology/approach The research uses a comparative approach by examining the different solutions adopted in other European countries for finding analogies and differences between them. Findings The research has discovered a smaller development of Compliance Function in Italian banks, whose compliance risk frameworks are often still in an experimental stage rather than in other systems banks. Research limitations/implications A uniform mo…

The community structure of the global corporate network.

2013

We investigate the community structure of the global ownership network of transnational corporations. We find a pronounced organization in communities that cannot be explained by randomness. Despite the global character of this network, communities reflect first of all the geographical location of firms, while the industrial sector plays only a marginal role. We also analyze the network in which the nodes are the communities and the links are obtained by aggregating the links among firms belonging to pairs of communities. We analyze the network centrality of the top 50 communities and we provide the first quantitative assessment of the financial sector role in connecting the global economy.

How does serendipity affect diversity in recommender systems? A serendipity-oriented greedy algorithm

2018

Most recommender systems suggest items that are popular among all users and similar to items a user usually consumes. As a result, the user receives recommendations that she/he is already familiar with or would find anyway, leading to low satisfaction. To overcome this problem, a recommender system should suggest novel, relevant and unexpected i.e., serendipitous items. In this paper, we propose a serendipity-oriented, reranking algorithm called a serendipity-oriented greedy (SOG) algorithm, which improves serendipity of recommendations through feature diversification and helps overcome the overspecialization problem. To evaluate our algorithm, we employed the only publicly available datase…

Ranking-Oriented Collaborative Filtering: A Listwise Approach

2016

Collaborative filtering (CF) is one of the most effective techniques in recommender systems, which can be either rating oriented or ranking oriented. Ranking-oriented CF algorithms demonstrated significant performance gains in terms of ranking accuracy, being able to estimate a precise preference ranking of items for each user rather than the absolute ratings (as rating-oriented CF algorithms do). Conventional memory-based ranking-oriented CF can be referred to as pairwise algorithms. They represent each user as a set of preferences on each pair of items for similarity calculations and predictions. In this study, we propose ListCF, a novel listwise CF paradigm that seeks improvement in bot…