Search results for " access policy"
showing 4 items of 4 documents
Self-validating bundles for flexible data access control
2016
Modern cloud-based services offer free or low-cost content sharing with significant advantages for the users but also new issues in privacy and security. To protect sensitive contents (i.e., copyrighted, top secret, and personal data) from the unauthorized access, sophisticated access management systems or/and decryption schemes have been proposed, generally based on trusted applications at client side. These applications work also as access controllers, verifying specific permissions and restrictions accessing user’s resources. We propose secure bundles (S-bundles), which encapsulate a behavioral model (provided as bytecode) to define versatile stand-alone access controllers and encoding/d…
MAC Design for WiFi Infrastructure Networks: A Game-Theoretic Approach
2011
In WiFi networks, mobile nodes compete for accessing a shared channel by means of a random access protocol called Distributed Coordination Function (DCF). Although this protocol is in principle fair, since all the stations have the same probability to transmit on the channel, it has been shown that unfair behaviors may emerge in actual networking scenarios because of non-standard configurations of the nodes. Due to the proliferation of open source drivers and programmable cards, enabling an easy customization of the channel access policies, we propose a game-theoretic analysis of random access schemes. Assuming that each node is rational and implements a best response strategy, we show that…
Does openness and open access policy relate to the success of universities?
2013
This study takes a closer look at the Ranking Web of Universities and Ranking Web of Repositories rankings and tries to examine if there is a connection between these two rankings. Study is done by analyzing the success of University of Jyväskylä and the institutional repository JyX of the University in these rankings. Comparison shows that the JyX archive plays an important role in University’s success especially when analyzing the presence and openness of the University. By analyzing the success of eight European countries in these rankings and cross reading these findings with the development of relative citation impact shown in a report by the Finnish Academy, some interesting common tr…
Platforma czasopism Uniwersytetu Opolskiego przykładem synergii w budowaniu otwartego dostępu do publikacji uczelnianych
2020
Narodowe Centrum Nauki we wrześniu 2018 r. zadeklarowało udział w realizacji Planu S, który przewiduje, że od 1 stycznia 2020 r. wszystkie publikacje naukowe powstałe z udziałem finansowania ze środków publicznych muszą być publikowane w czasopismach Open Access lub na platformach Open Access. Na Uniwersytecie Opolskim trwały już wtedy prace nad uruchomieniem platformy, która zapewniłaby otwarty dostęp do uczelnianych czasopism naukowych. Docelowo umieszczono na niej trzynaście tytułów wydawanych przez uczelnię. Zadanie to powierzono do realizacji Bibliotece Głównej UO jako jednostce koordynującej wszelkie prace związane z jej powstaniem. Jest to kolejna – po repozytorium uczelnianym – form…