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Wyświetlanie 1-15 z 23
Tytuł:
On the Consistency of Multithreshold Entropy Linear Classifier
Autorzy:
Czarnecki, Wojciech Marian
Powiązania:
https://bibliotekanauki.pl/articles/1373701.pdf
Data publikacji:
2015
Wydawca:
Uniwersytet Jagielloński. Wydawnictwo Uniwersytetu Jagiellońskiego
Tematy:
multithreshold classifier
entropy
consistency
classification theory
Opis:
Multithreshold Entropy Linear Classifier (MELC) is a recent classifier idea which employs information theoretic concept in order to create a multithreshold maximum margin model. In this paper we analyze its consistency over multithreshold linear models and show that its objective function upper bounds the amount of misclassified points in a similar manner like hinge loss does in support vector machines. For further confirmation we also conduct some numerical experiments on five datasets.
Źródło:
Schedae Informaticae; 2015, 24; 123-132
0860-0295
2083-8476
Pojawia się w:
Schedae Informaticae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Fast Optimization of Multithreshold Entropy Linear Classifier
Autorzy:
Józefowicz, Rafał
Czarnecki, Wojciech Marian
Powiązania:
https://bibliotekanauki.pl/articles/1373582.pdf
Data publikacji:
2014
Wydawca:
Uniwersytet Jagielloński. Wydawnictwo Uniwersytetu Jagiellońskiego
Tematy:
multithreshold classifier
entropy
approximation
optimization
Opis:
Multithreshold Entropy Linear Classifier (MELC) is a density based model which searches for a linear projection maximizing the Cauchy-Schwarz Divergence of dataset kernel density estimation. Despite its good empirical results, one of its drawbacks is the optimization speed. In this paper we analyze how one can speed it up through solving an approximate problem. We analyze two methods, both similar to the approximate solutions of the Kernel Density Estimation querying and provide adaptive schemes for selecting a crucial parameters based on user-specified acceptable error. Furthermore we show how one can exploit well known conjugate gradients and L-BFGS optimizers despite the fact that the original optimization problem should be solved on the sphere. All above methods and modifications are tested on 10 real life datasets from UCI repository to confirm their practical usability.
Źródło:
Schedae Informaticae; 2014, 23; 57-67
0860-0295
2083-8476
Pojawia się w:
Schedae Informaticae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of Compounds Activity Concept Learned by SVM Using Robust Jaccard Based Low-dimensional Embedding
Autorzy:
Jastrzębski, Stanisław
Czarnecki, Wojciech Marian
Powiązania:
https://bibliotekanauki.pl/articles/1373687.pdf
Data publikacji:
2015
Wydawca:
Uniwersytet Jagielloński. Wydawnictwo Uniwersytetu Jagiellońskiego
Tematy:
Support Vector Machines
Locally Sensitive Hashing
Jaccard similarity
Opis:
Support Vector Machines (SVM) with RBF kernel is one of the most successful models in machine learning based compounds biological activity prediction. Unfortunately, existing datasets are highly skewed and hard to analyze. During our research we try to answer the question how deep is activity concept modeled by SVM. We perform analysis using a model which embeds compounds’ representations in a low-dimensional real space using near neighbour search with Jaccard similarity. As a result we show that concepts learned by SVM is not much more complex than slightly richer nearest neighbours search. As an additional result, we propose a classification technique, based on Locally Sensitive ashing approximating the Jaccard similarity through minhashing technique, which performs well on 80 tested datasets (consisting of 10 proteins with 8 different representations) while in the same time allows fast classification and efficient online training.
Źródło:
Schedae Informaticae; 2015, 24; 9-19
0860-0295
2083-8476
Pojawia się w:
Schedae Informaticae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Most Common Injuries to Professional Contestant Karate
Autorzy:
Ambroży, Tadeusz
Mucha, Dariusz
Czarnecki, Wojciech
Ambroży, Dorota
Janusz, Mariusz
Piwowarski, Juliusz
Mucha, Teresa
Powiązania:
https://bibliotekanauki.pl/articles/1832477.pdf
Data publikacji:
2015
Wydawca:
Wyższa Szkoła Bezpieczeństwa Publicznego i Indywidualnego Apeiron w Krakowie
Tematy:
karate
injuries
prevention
Opis:
Aim: The aim of the study is an attempt to answer the question whether a long-term karate practice exerts influence on the incidence of injuries and what its type and underlying cause. Methods: The research was carried out in July 2013 in Cracow during a karate training camp. 125 people from Poland participated in the study. The participation in research was voluntary and people were informed about its aim and application. The average age was 37,6 ± 11,3 years. The youngest participant was 15 and the oldest 57. Median age was 39 which means that half of participants was not older than 39 and the other half was at least 39. Questionnaire techniques were used in the study. The research tool used to implement the selected technique was survey questionnaire. The questionnaire consisted of 23 open- and close-ended questions. Results: As results from own research, the greatest number of competitors (38) have suffered from contusion (47,1% of all injury types). This injury types constitutes almost half of all injuries. Among all injury types karate contestants suffered from last year, the most common were contusions (25,6% of all injuries). Conclusions: Karate training is not related to any serious injuries apart from contusions which at the same time are most common injury in this type of training. Contestants’ and training experience are not directly related to injury incidence. An appropriately organized, rational training and using prevention enables to avoid injuries. Circumstances of injury incidence change with contestants’ age and training experience.
Źródło:
Security Dimensions; 2015, 16(16); 142-164
2353-7000
Pojawia się w:
Security Dimensions
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ethical view of manipulation during the school education
Autorzy:
Słomski, Wojciech
Czarnecki, Paweł
Powiązania:
https://bibliotekanauki.pl/articles/2148209.pdf
Data publikacji:
2018
Wydawca:
Instytut Studiów Międzynarodowych i Edukacji Humanum
Tematy:
education
philosophy
ethics
child
manipulation
Opis:
This article discusses how the use of manipulation in education can be ethically justified under certain conditions. An argument is made that the ethical evaluation of manipulation depends firstly on the definition of the concepts of education and manipulation, and secondly, on the level on which the manipulation takes place, that is, on the aims and reasons for why it is used. It is also suggested that the ethical evaluation should refer to education as a global process, which starts in early childhood and ends in early adulthood, rather than to particular stages of education. The observations made in this article allow, to a certain extent, to answer to the accusation that manipulating the children in their own interest is ethically suspicious.
Źródło:
Prosopon. Europejskie Studia Społeczno-Humanistyczne; 2018, 4(25); 57-68
1730-0266
Pojawia się w:
Prosopon. Europejskie Studia Społeczno-Humanistyczne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Social responsibility of man as an ethical challenge
Autorzy:
Słomski, Wojciech
Czarnecki, Paweł
Powiązania:
https://bibliotekanauki.pl/articles/2148231.pdf
Data publikacji:
2018
Wydawca:
Instytut Studiów Międzynarodowych i Edukacji Humanum
Tematy:
philosophy
anthropology
ethics
moral philosophy
moral theology
ethical dilemmas
ethical challenges
the present time versus morality
social responsibility
Opis:
If we talk about dilemmas and the ethical challenges of the present time, then we suggest simultaneously that these problems differ in some way from universal ethical questions, important to man in every epoch and in every circumstances, and from these issues which were important in the past or will turn out important in the future, however, at present the general agreement concerning definite decisions prevails. Then it is necessary to identify those special problems of the present time and point out the features due to which they acquire special significance to us. However, presenting the matter in such a way does not seem fully justified, because the times in which we live differ in many regards from all mankind has ever experienced. The development of science and technology and increasing possibility of activities resulting from them, and also a level of complexity of relations linking the acting subject with other different subjects and the external world, caused that also ethical problems have taken on a whole new dimension. The issues which in the beginning of the XXth century were considered as minor or banal (e.g. the problem of man’s influence on the environment) became the key ethical questions in the course of several decades stirring up deep divisions not only among ethicists, but also in the whole society. In majority, they are however practical problems connected with certain general philosophical theories, such as abortion, euthanasia or medical experiments. In the last years they grew almost into symbols, and the way of their deciding shows a general ideological attitude, and even allows to define political views.
Źródło:
Prosopon. Europejskie Studia Społeczno-Humanistyczne; 2018, 4(25); 253-259
1730-0266
Pojawia się w:
Prosopon. Europejskie Studia Społeczno-Humanistyczne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Man as a subject among dilemmas and ethical challenges of the present time
Autorzy:
Słomski, Wojciech
Czarnecki, Paweł
Powiązania:
https://bibliotekanauki.pl/articles/2130851.pdf
Data publikacji:
2019
Wydawca:
Instytut Studiów Międzynarodowych i Edukacji Humanum
Tematy:
philosophy
anthropology
ethics
moral philosophy
moral theology
ethical dilemmas
ethical challenges
the present time versus morality
Opis:
If we talk about dilemmas and the ethical challenges of the present time, then we suggest simulta- neously that these problems differ in some way from universal ethical questions, important to man in every epoch and in every circumstances, and from these issues which were important in the past or will turn out important in the future, however, at present the general agreement concerning definite decisions prevails. Then it is necessary to identify those special problems of the present time and point out the features due to which they acquire special significance to us.
Źródło:
Humanum. Międzynarodowe Studia Społeczno-Humanistyczne; 2019, 1 (32); 117-122
1898-8431
Pojawia się w:
Humanum. Międzynarodowe Studia Społeczno-Humanistyczne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wstęp do filozofii Jean-François Lyotarda
Autorzy:
Słomski, Wojciech
Czarnecki, Paweł
Powiązania:
https://bibliotekanauki.pl/articles/2148217.pdf
Data publikacji:
2018
Wydawca:
Instytut Studiów Międzynarodowych i Edukacji Humanum
Tematy:
Deconstruction
Postmodernism
Post-structuralism
Opis:
There is no doubt that Lyotard’s the most famous achievement is his conception of metanarrative. This concept undermines the credibility of traditional philosophy along with its claim for conceptual clarity, thanks to which we would be able to speak about the world as it “really” appears. Lyotard has pointed out that since the Enlightenment we have lived in an illusion believing in future possibility of coming to fruition of the narrative of the dialectics of Spirit, the emancipation of reason, social progress, etc. While rejecting metanarratives and proposing a limitation to micro-narration instead, Lyotard has established the theoretical foundations of a pluralistic society, seeking solutions of its own problems not by consensus, but by permanent endless disputes. He has presented, in essence, a new image of society as a multiplicity of various subsystems and discourses, none of which can claim to be superior to others. Despite sometimes harsh criticism, there will be only a slight exaggeration in the statement that his concepts have influenced not only the philosophy of the last decades of the 20th century, but indirectly also social reality, since the concept of the pluralistic society is derived directly from the philosophy of modernism. Even if we find that complaints made against Lyotard to be legitimate, we cannot deny that society functioning as Lyotard has desired, would be the society free from the threat of the rebirth of totalitarianism.
Źródło:
Prosopon. Europejskie Studia Społeczno-Humanistyczne; 2018, 4(25); 119-142
1730-0266
Pojawia się w:
Prosopon. Europejskie Studia Społeczno-Humanistyczne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Strategia instytutów badawczych budownictwa
Strategy of Construction Research Institutes
Autorzy:
Czarnecki, Lech
Radomski, Wojciech
Sokołowska, Joanna
Data publikacji:
2015
Wydawca:
Instytut Techniki Budowlanej
Opis:
Monografia powstała w związku z Jubileuszem 70-lecia działalności Instytutu Techniki Budowlanej. Publikację otwiera studium, w którym przedstawiono rozważania nad nauką w inżynierii lądowej, jakie są jej cechy i znaczenie oraz jaka jest rola ITB w rozwijaniu nauki i wprowadzaniu innowacji do budownictwa w Polsce. W kolejnych rozdziałach przedstawiono: – strategiczne cele europejskich instytutów badawczych zrzeszonych w ENBRI; ukazana strategia ukierunkowana jest na rolę instytutów we wdrażaniu innowacji w budownictwie, przynoszących korzyści w zakresie gospodarczym, społecznym i środowiskowym, – zarys historyczny działalności Europejskiej Organizacji ds. Oceny Technicznej ze szczególnym uwzględnieniem roli ITB jako Jednostki Oceny Technicznej; podkreślono rolę ETA w procesie wprowadzania do obrotu na rynkach europejskich innowacyjnych wyrobów budowlanych, także w kontekście wymagań prawnych obowiązujących w Polsce, – wyzwania kategoryzacji wobec instytutów badawczych; ukazano kryteria kompleksowej oceny działalności naukowej jednostek naukowych, zastosowanie w praktyce wyników badań i prac rozwojowych w ocenie działalności naukowej oraz oczekiwania instytutów badawczych w Polsce wobec kategoryzacji. Rozdział piąty, najobszerniejszy, stanowi unikatowe omówienie wszystkich obronionych w ITB prac doktorskich. Autor wyodrębnił i przedstawił oryginalne osiągnięcia dysertacji doktorskich. Wysoka jakość merytoryczna doktoratów dobitnie świadczy o oddziaływaniu Instytutu na rozwój budownictwa w Polsce. Monografię kończy esej przedstawiający strategię dalszego rozwoju ITB. Wykorzystano w niej nowoczesne metody diagnostyki, formułowania zadań, przeprowadzania zmian i zarządzania zmianami. Ukazano proces definiowania celów strategicznych Instytutu i budowania zespołów do ich realizacji.
The monograph was published for the Jubilee of the 70th anniversary of the Building Research Institute. The publication begins with a study presenting thoughts on science in civil engineering, its characteristics and importance as well as the role of the Building Research Institute in the development of science and introduction of innovations in the construction industry in Poland. Subsequent chapters of the publication include: – strategic goals of European research institutes members of ENBRI; the presented strategy focuses on the role of the institutes in implementing innovations in the construction industry, which entails economic, social and environmental benefits, – a historical outline of the European Organization for Technical Approval, with particular attention to the role of the Building Research Institute as a Technical Assessment Body; the role of the ETA in the process of marketing construction products on European markets, also in the context of legal requirements applicable in Poland, – categorisation challenges for research institutes; the article discusses the criteria for comprehensive assessment of the scientific activity of academic bodies, practical uses of research and development results in the assessment of scientific activity as well as the expectations of research institutes in Poland towards categorisation. The largest chapter five constitutes a unique presentation of all doctoral theses defended at the Building Research Institute. The author selected and discussed original achievements of doctoral dissertations. High technical quality of the dissertations clearly evidences the influence of the Institute on the development of construction in Poland. The monograph concludes with an essay offering an insight into the strategy for further development of the Building Research Institute. It uses innovative methods for diagnosing, formulating tasks, implementing changes and managing change. The paper also presents the process of defining strategic goals of the Institute and building teams for their implementation.
Dostawca treści:
Biblioteka Nauki
Książka
Wyświetlanie 1-15 z 23

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