13 research outputs found
Randomized Reference Classifier with Gaussian Distribution and Soft Confusion Matrix Applied to the Improving Weak Classifiers
In this paper, an issue of building the RRC model using probability
distributions other than beta distribution is addressed. More precisely, in
this paper, we propose to build the RRR model using the truncated normal
distribution. Heuristic procedures for expected value and the variance of the
truncated-normal distribution are also proposed. The proposed approach is
tested using SCM-based model for testing the consequences of applying the
truncated normal distribution in the RRC model. The experimental evaluation is
performed using four different base classifiers and seven quality measures. The
results showed that the proposed approach is comparable to the RRC model built
using beta distribution. What is more, for some base classifiers, the
truncated-normal-based SCM algorithm turned out to be better at discovering
objects coming from minority classes.Comment: arXiv admin note: text overlap with arXiv:1901.0882
Electrical Conductance in Biological Molecules
Nucleic acids and proteins are not only biologically important polymers: They
have recently been recognized as novel functional materials surpassing in many
aspects the conventional ones. Although Herculean efforts have been undertaken
to unravel fine functioning mechanisms of the biopolymers in question, there is
still much more to be done. This particular paper presents the topic of
biomolecular charge transport, with a particular focus on charge
transfer/transport in DNA and protein molecules. Here the experimentally
revealed details, as well as the presently available theories, of charge
transfer/transport along these biopolymers are critically reviewed and
analyzed. A summary of the active research in this field is also given, along
with a number of practical recommendations.Comment: v2: This paper has been withdrawn by the authors due to a serious
complaints from one author whose work we cite. v3: After clarifying the issue
we are herewith republishing our paper
A dynamic model of classifier competence based on the local fuzzy confusion matrix and the random reference classifier
Nowadays, multiclassifier systems (MCSs) are being widely applied in various machine learning problems and in many different domains. Over the last two decades, a variety of ensemble systems have been developed, but there is still room for improvement. This paper focuses on developing competence and interclass cross-competence measures which can be applied as a method for classifiers combination. The cross-competence measure allows an ensemble to harness pieces of information obtained from incompetent classifiers instead of removing them from the ensemble. The cross-competence measure originally determined on the basis of a validation set (static mode) can be further easily updated using additional feedback information on correct/incorrect classification during the recognition process (dynamic mode). The analysis of computational and storage complexity of the proposed method is presented. The performance of the MCS with the proposed cross-competence function was experimentally compared against five reference MCSs and one reference MCS for static and dynamic modes, respectively. Results for the static mode show that the proposed technique is comparable with the reference methods in terms of classification accuracy. For the dynamic mode, the system developed achieves the highest classification accuracy, demonstrating the potential of the MCS for practical applications when feedback information is available
Hand movement recognition based on biosignal analysis
http://www.sciencedirect.com/science/article/B6V2M-4VKDGR2-1/2/17a50f88d895da79aa450c9fb260846
8th International Conference on Computer Recognition Systems
The computer recognition systems are nowadays one of the most promising directions in artificial intelligence. This book is the most comprehensive study of this field. It contains a collection of 86 carefully selected articles contributed by experts of pattern recognition. It reports on current research with respect to both methodology and applications. In particular, it includes the following sections: Biometrics Data Stream Classification and Big Data Analytics Features, learning, and classifiers Image processing and computer vision Medical applications Miscellaneous applications Pattern recognition and image processing in robotics Speech and word recognition This book is a great reference tool for scientists who deal with the problems of designing computer pattern recognition systems. Its target readers can be the as well researchers as students of computer science, artificial intelligence or robotics