Search results for "MDP"
showing 7 items of 7 documents
Two Teletraffic-based Schemes for Energy Saving in Cellular Networks with Micro-cells
2012
Published version of an article in the journal: Journal of Communications. Also available from the publisher at: http://dx.doi.org/10.4304/jcm.7.10.726-739 Open access The energy consumption of Base Stations (BSs) is known to constitute a major part of the power consumption in a cellular network. In this paper, we propose a novel approach which may switch a BS off under light traffic conditions in order to conserve the power consumption of such networks. More specifically, when the traffic load in the middle cell of a network with three micro-cells is sufficiently low, the corresponding BS can be switched off and its users will be covered by increasing the transmission power of one sector a…
In vitro evaluation of the antibacterial activity of cured dentin/enamel adhesive incorporating the antimicrobial agent MDPB
2010
The aim of this study was to investigate in vitro the antibacterial effect of a dentin/enamel adhesive containing MDPB (Clearfil Protect Bond) after curing and to compare it with an adhesive not containing MDPB (Clearfil SE Bond). The antibacterial effect of the cured adhesives was tested on Enterococcus faecalis by the evaluation of growth inhibition in a 48-h microplate direct contact test (DCT). The presence of antibacterial activity due to soluble components was also investigated by an agar diffusion test (ADT) performed with the adhesives cured on the surface of dentin disks. In the DCT, both the tested materials showed complete inhibition of bacterial growth until the 7-h reading, reg…
POMDP failu konvertācija un apstrāde
2017
Bakalaura darba nosaukums ir “POMDP failu konvertācija un apstrāde”. Darbā tiek aprakstīti MDP un POMDP modeļi, POMDPx un POMDP failu formāti un šo failu formātu savstarpējai konvertācija, izmantojot programmēšanas valodu C++.
A Sensitive Nanosensor for the In Situ Detection of the Cannibal Drug.
2020
[EN] A bio-inspired nanodevice for the selective and sensitive fluorogenic detection of 3,4- methylenedioxypyrovalerone (MDPV), usually known as Cannibal drug, is reported. The sensing nanodevice is based on mesoporous silica nanoparticles (MSNs), loaded with a fluorescent reporter (rhodamine B) and functionalized on their external surface with a dopamine derivative (3), which specifically interacts with the recombinant human dopamine transporter (DAT), capping the pores. In the presence of MDPV, DAT detaches from the MSNs consequently causing rhodamine B release and allowing drug detection. The nanosensor shows a detection limit of 5.2 µM and it is able to detect the MDPV drug both in sali…
POMDP problēmu risināšana, izmantojot vēsturiskus elementus, un tās optimizācija
2017
Elvja Egles Bakalaura darba „POMDP problēmu risināšana, izmantojot vēsturiskus elementus, un tās optimizācija” ietvaros tika izpētīti daļēji novērojami Markova lēmuma procesu (POMDP) algoritmi. Balstoties uz Jāņa Zutera zinātniski pētniecisko raksta saturu „Sequence Q-Learning: a Memory-based Method Towards Solving POMDP”, kurā ir aprakstīta POMDP risināšanas ideja, tika izstrādāts līdzvērtīgs mašīnmācīšanās algoritms, saskaņā ar rakstā sniegto informāciju. Bakalaura darba ietvaros tika pētīta šī Algoritma efektivitāte, kā arī apskatītas un piedāvātas vairākas iespējas tā tālākai pilnveidei. Programmētais darbs tika pievērsts konkrētai problēmai, kurai bija novērojama labāka ātrdarbība ar n…
A framework to induce self-regulation through a metacognitive tutor
2010
A new architectural framework for a metacognitive tutoring system is presented that is aimed to stimulate self regulatory behavior in the learner. The new framework extends the cognitive architecture of TutorJ that has been already proposed by some of the authors. TutorJ relies mainly on dialogic interaction with the user, and makes use of a statistical dialogue planner implemented through a Partially Observable Markov Decision Process (POMDP). A suitable two-level structure has been designed for the statistical reasoner to cope with measuring and stimulating metacognitive skills in the user. Suitable actions have been designed to this purpose starting from the analysis of the main question…
A Cognitive Dialogue Manager for Education Purposes
2011
A conversational agent is a software system that is able to interact with users in a natural way, and often uses natural language capabilities. In this chapter, an evolution of a conversational agent is presented according to the definition of dialogue management techniques for the conversational agents. The presented conversational agent is intended to act as a part of an educational system. The chapter outlines the state-of-the-art systems and techniques for dialogue management in cognitive educational systems, and the underlying psychological and social aspects. We present our framework for a dialogue manager aimed to reduce the uncertainty in users’ sentences during the assessment of hi…