We show that a criterion for eligibility of a candidate by the set of de Borda’s voting rules in [H. Moulin (1988) Axioms of cooperative decision making] is erroneous and we obtain the correct version of this criterion. Let r(ai) be the score vector of a candidate ai, R be the set of all vectors r(ai), and let R ′ be the Pareto boundary of the convex hull convR. Then there is a scoring s such t...

Accurately and automatically detecting image orientation is a task of great importance in intelligent image processing. In this paper, we present automatic image orientation detection algorithms based on these features: color moments; harris corner; phase symmetry; edge direction histogram. The statistical learning support vector machines, AdaBoost, Subspace classifier are used in our approach ...

We consider the situation in which group activities need to be organized for a set of agents. Each agent can take part in at most one activity, and the agents’ preferences depend both on the activity and the number of participants in that activity. In particular, the preferences are given by means of strict orders over such pairs “(activity, group size)”, including the possibility “do nothing”....

With the growing interest on Network Analysis, Relational Data Mining is becoming an emphasized domain of Data Mining. This paper addresses the problem of extracting representative elements from a relational dataset. After defining the notion of degree of representativeness, computed using the Borda aggregation procedure, we present the extraction of exemplars which are the representative eleme...

We consider the issue of update in settings for preference aggregation under preference changes. While the traditional problem formulation of preference aggregation assumes a fixed set of preference orders and a fixed set of domain elements we investigate how an aggregated preference order has to be updated when the input orders are dynamic. Our analysis shows that for even for some simple aggr...

The multiple attribute mixed type decision making is performed by four methods, that is, the relative approach degree of grey TOPSIS method, the relative approach degree of grey incidence , the relative membership degree of grey incidence and the grey relation relative approach degree method using the maximum entropy estimation, respectively. In these decision making methods, the grey incidence...

The Open University's repository of research publications and other research outputs Knowledge for development? : reflections from consultants and advisors in Bolivia Thesis How to cite: Borda-Rodriguez, Alexander (2008). Knowledge for development? : reflections from consultants and advisors in Bolivia. PhD thesis The Open University. For guidance on citations see FAQs. Copyright and Moral Righ...

The combination of multiple clustering processes provides a means for building robust document clustering systems. This work focuses on the consolidation of fuzzy clusterings, proposing two consensus functions for soft cluster ensembles based on the Borda and Condorcet positional voting strategies. Experiments conducted on two document corpora reveal that the proposed soft consensus functions a...

The goal of this paper is to propose and study properties of multiwinner voting rules (with a particular focus on rules based in some way on single-winner scoring rules). We consider, e.g., SNTV, Bloc, k-Borda, STV, and several variants of Chamberlin–Courant’s and Monroe’s rules, identify two natural approaches to defining multiwinner rules, and show that many of our rules can be captured by on...

Soft computing techniques have been recently exploited as a promising tool for achieving high performance in pattem recognition. This paper presents a hybrid method which combines neural network classifiers by genetic algorithm. Genetic algorithm gives us an effective vehicle to determine the optimal weight parameters that are multiplied by the network outputs as coefficients. The experimental ...