1.
Pavlova, P. E.; Pachedjieva, B. K.
Investigation on the possibilities of tracking dynamic visibility changes in images Conference
2021, ISBN: 9781665445184.
Abstract | Links | BibTeX | Tags: cst, e
@conference{Pavlova2021,
title = {Investigation on the possibilities of tracking dynamic visibility changes in images},
author = {P. E. Pavlova and B. K. Pachedjieva},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85119019255\&doi=10.1109%2fET52713.2021.9579821\&partnerID=40\&md5=9d42a6b86968d3572ac0584339836ac7},
doi = {10.1109/ET52713.2021.9579821},
isbn = {9781665445184},
year = {2021},
date = {2021-01-01},
urldate = {2021-01-01},
journal = {2021 30th International Scientific Conference Electronics, ET 2021 - Proceedings},
abstract = {This material describes a methodology for tracking the dynamics of weather phenomena in computer images. The investigation is based on parameters used in the currently available techniques for determination of fog, rain, snow and sun. The developed methodology relies on the, mean value, dispersion and correlated color temperature by processing the dark prior channel of colored images. Tracking is done for a set of data derived from restricted fields with different positioning in one image. The occurrence of an event is analysed on in sequences of images obtained in different weather phenomenon. The research is aimed at improving the processing of images at monitoring traffic. © 2021 IEEE.},
keywords = {cst, e},
pubstate = {published},
tppubtype = {conference}
}
This material describes a methodology for tracking the dynamics of weather phenomena in computer images. The investigation is based on parameters used in the currently available techniques for determination of fog, rain, snow and sun. The developed methodology relies on the, mean value, dispersion and correlated color temperature by processing the dark prior channel of colored images. Tracking is done for a set of data derived from restricted fields with different positioning in one image. The occurrence of an event is analysed on in sequences of images obtained in different weather phenomenon. The research is aimed at improving the processing of images at monitoring traffic. © 2021 IEEE.
2.
Budakova, D.; Petrova-Dimitrova, V.; Dakovski, L.
Smart broker agent learning how to reach appropriate goal by making appropriate compromises Conference
vol. 1, 2021, ISBN: 9789897584848.
Abstract | Links | BibTeX | Tags: cst
@conference{Budakova2021181,
title = {Smart broker agent learning how to reach appropriate goal by making appropriate compromises},
author = {D. Budakova and V. Petrova-Dimitrova and L. Dakovski},
editor = {van den Herik J. Steels L. Rocha A.P.},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85103860936\&partnerID=40\&md5=067a1bdd3c8e6ce1a412f6ca31e15c58},
isbn = {9789897584848},
year = {2021},
date = {2021-01-01},
urldate = {2021-01-01},
journal = {ICAART 2021 - Proceedings of the 13th International Conference on Agents and Artificial Intelligence},
volume = {1},
pages = {181-188},
abstract = {In this paper a new Smart Broker Learning Agent (SBLA) has been proposed, which trains to find the most acceptable solution to a given problem, according to the individual requirements and emotions of a particular user. For this purpose, a new structure of the agent has been proposed and reinforcement-learning algorithm has been used. When the scenarios and criteria under consideration are complex, and when mixed emotions arise, it may be necessary to compromise on certain criteria in order to achieve the goal. Then knowledge of the preferences and emotions of the particular user is needed. In these cases, the SBLA does not allow compromises that are unacceptable to this user. The structure and the way of acting of the agent have been considered. The knowledge that the SBLA must have and the process of its formation have been described. The scenarios for solving a specific task and the conducted experiments have been presented. Some contributions, arising from the use of the proposed agent's architecture have been discussed, such as: the opportunity for the agent to explain decisions; to offer the most appropriate solution for each specific user; to avoid unacceptable compromises, to have empathy, and the greater approval of the offered solutions. © 2021 by SCITEPRESS - Science and Technology Publications, Lda. All rights reserved},
keywords = {cst},
pubstate = {published},
tppubtype = {conference}
}
In this paper a new Smart Broker Learning Agent (SBLA) has been proposed, which trains to find the most acceptable solution to a given problem, according to the individual requirements and emotions of a particular user. For this purpose, a new structure of the agent has been proposed and reinforcement-learning algorithm has been used. When the scenarios and criteria under consideration are complex, and when mixed emotions arise, it may be necessary to compromise on certain criteria in order to achieve the goal. Then knowledge of the preferences and emotions of the particular user is needed. In these cases, the SBLA does not allow compromises that are unacceptable to this user. The structure and the way of acting of the agent have been considered. The knowledge that the SBLA must have and the process of its formation have been described. The scenarios for solving a specific task and the conducted experiments have been presented. Some contributions, arising from the use of the proposed agent's architecture have been discussed, such as: the opportunity for the agent to explain decisions; to offer the most appropriate solution for each specific user; to avoid unacceptable compromises, to have empathy, and the greater approval of the offered solutions. © 2021 by SCITEPRESS - Science and Technology Publications, Lda. All rights reserved
3.
Petrova, G.; Spasov, G.; Iliev, I.
A Review on Applications of Low-resolution IR Array Sensors in Ambient-Assisted Living Conference
2021, ISBN: 9781665445184.
Abstract | Links | BibTeX | Tags: cst, e
@conference{Petrova2021,
title = {A Review on Applications of Low-resolution IR Array Sensors in Ambient-Assisted Living},
author = {G. Petrova and G. Spasov and I. Iliev},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85119001857\&doi=10.1109%2fET52713.2021.9579477\&partnerID=40\&md5=efbd9ca279b727cda39d21f38b4dffee},
doi = {10.1109/ET52713.2021.9579477},
isbn = {9781665445184},
year = {2021},
date = {2021-01-01},
urldate = {2021-01-01},
journal = {2021 30th International Scientific Conference Electronics, ET 2021 - Proceedings},
abstract = {The present paper provides a review on applications of Low-resolution IR array sensors in Ambient-Assisted Living (AAL) monitoring systems. The review is focused on three main scenarios: indoor people detecting, localizing and counting; fall detection; indoor human activity detection and recognition. A comparative analysis of the reported results in the latest research studies has been carried out in terms of the type and position of the low-resolution IR array sensors used, the employed methods and image processing techniques and the achieved accuracy. The analysis shows that for fall detection and human activity recognition applications, the IR array sensors with 24times 32 pixels or multiple sensors arrangements with 4times 16, 16times 16 and 24times 32 pixels can provide sufficient accuracy and still preserving user privacy. © 2021 IEEE.},
keywords = {cst, e},
pubstate = {published},
tppubtype = {conference}
}
The present paper provides a review on applications of Low-resolution IR array sensors in Ambient-Assisted Living (AAL) monitoring systems. The review is focused on three main scenarios: indoor people detecting, localizing and counting; fall detection; indoor human activity detection and recognition. A comparative analysis of the reported results in the latest research studies has been carried out in terms of the type and position of the low-resolution IR array sensors used, the employed methods and image processing techniques and the achieved accuracy. The analysis shows that for fall detection and human activity recognition applications, the IR array sensors with 24times 32 pixels or multiple sensors arrangements with 4times 16, 16times 16 and 24times 32 pixels can provide sufficient accuracy and still preserving user privacy. © 2021 IEEE.
4.
Nenchev, M.; Deneva, M.; Marinova, M.
vol. 1859, no. 1, 2021, ISSN: 17426588.
Abstract | Links | BibTeX | Tags: cst, ee
@conference{Nenchev2021,
title = {Competitive light beam splitters based on complex interference wedged structures that use low-reflectivity components (Fresnel reflection)},
author = {M. Nenchev and M. Deneva and M. Marinova},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85104268254\&doi=10.1088%2f1742-6596%2f1859%2f1%2f012021\&partnerID=40\&md5=4f64ec553e7218abb7f9e286fda2d476},
doi = {10.1088/1742-6596/1859/1/012021},
issn = {17426588},
year = {2021},
date = {2021-01-01},
urldate = {2021-01-01},
journal = {Journal of Physics: Conference Series},
volume = {1859},
number = {1},
abstract = {We demonstrate that interference wedge structures suitably composed of wedged purely glass elements using Fresnel reflection only can be effectively employed for realization of competitive light beam splitters and filters (especially for high-power laser beams). The theoretical analysis, simulation and experimental testing show that for appropriately chosen parameters and for a suitably composed interference complex such structures can achieve a controlled variable transmission in a wide range (99%-~30%) and reflection from ~2% to ~70%. The traditional realization of purely glass splitters ensures no more than ~20% reflectivity. The splitters proposed are very compact sheet-like elements (e.g., 5×3×0.2 cm) and the splitting is implemented by sliding in the splitter's plane. Thus, the propagation direction of the formed beams is preserved. The incident beam on the purely glass splitter (no dielectric or metallic mirrors) can be of high power and the influence of the air humidity is strongly reduced; also, cleaning the filter surfaces presents no difficulties. A single splitter can work in a wide range of wavelengths (IR, visible) without polarization dependence for incident angles up to ~20°. © 2021 Published under licence by IOP Publishing Ltd.},
keywords = {cst, ee},
pubstate = {published},
tppubtype = {conference}
}
We demonstrate that interference wedge structures suitably composed of wedged purely glass elements using Fresnel reflection only can be effectively employed for realization of competitive light beam splitters and filters (especially for high-power laser beams). The theoretical analysis, simulation and experimental testing show that for appropriately chosen parameters and for a suitably composed interference complex such structures can achieve a controlled variable transmission in a wide range (99%-~30%) and reflection from ~2% to ~70%. The traditional realization of purely glass splitters ensures no more than ~20% reflectivity. The splitters proposed are very compact sheet-like elements (e.g., 5×3×0.2 cm) and the splitting is implemented by sliding in the splitter's plane. Thus, the propagation direction of the formed beams is preserved. The incident beam on the purely glass splitter (no dielectric or metallic mirrors) can be of high power and the influence of the air humidity is strongly reduced; also, cleaning the filter surfaces presents no difficulties. A single splitter can work in a wide range of wavelengths (IR, visible) without polarization dependence for incident angles up to ~20°. © 2021 Published under licence by IOP Publishing Ltd.
5.
Mecheva, T. A.; Kakanakov, N. R.
Traffic flow model based on real data Conference
2021, ISBN: 9781665445184.
Abstract | Links | BibTeX | Tags: cst
@conference{Mecheva2021,
title = {Traffic flow model based on real data},
author = {T. A. Mecheva and N. R. Kakanakov},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85118967065\&doi=10.1109%2fET52713.2021.9579596\&partnerID=40\&md5=1d3ccb4282f0f6b1892e5e41f540e246},
doi = {10.1109/ET52713.2021.9579596},
isbn = {9781665445184},
year = {2021},
date = {2021-01-01},
urldate = {2021-01-01},
journal = {2021 30th International Scientific Conference Electronics, ET 2021 - Proceedings},
abstract = {Simulation models are vital in the process of design, evaluation, and predicting modern traffic systems. The selection of appropriate data and their adaptation to the simulator is one of the toughest tasks in transport simulation. The article presents a simple two-step model for traffic flow generation based on real data from road cameras. The privilege of the presented model in comparison to classic four-step model is its simplicity and the ability to operate with a small amount of data. The model is implemented over an area of three main intersections in the central Plovdiv. In the first step the origin and destination flows are calculated via Python. At the second step the road network and the calculated flows are set up to AIMSUN traffic simulator. The generated traffic flow is compared to the data from real measurements. The evaluation of the data shows that additional adjustment of the model is required. Directions for improvement are proposed: data purification before calculating traffic demand, investigation of model applicability with data from alternative measurements, and setting the traffic lights in dynamic mode. © 2021 IEEE.},
keywords = {cst},
pubstate = {published},
tppubtype = {conference}
}
Simulation models are vital in the process of design, evaluation, and predicting modern traffic systems. The selection of appropriate data and their adaptation to the simulator is one of the toughest tasks in transport simulation. The article presents a simple two-step model for traffic flow generation based on real data from road cameras. The privilege of the presented model in comparison to classic four-step model is its simplicity and the ability to operate with a small amount of data. The model is implemented over an area of three main intersections in the central Plovdiv. In the first step the origin and destination flows are calculated via Python. At the second step the road network and the calculated flows are set up to AIMSUN traffic simulator. The generated traffic flow is compared to the data from real measurements. The evaluation of the data shows that additional adjustment of the model is required. Directions for improvement are proposed: data purification before calculating traffic demand, investigation of model applicability with data from alternative measurements, and setting the traffic lights in dynamic mode. © 2021 IEEE.
6.
Mecheva, T; Kakanakov, N
Cybersecurity in intelligent transportation systems Journal Article
In: Computers, vol. 9, no. 4, pp. 1-12, 2020, ISSN: 2073431X, (cited By 0).
Abstract | Links | BibTeX | Tags: cst
@article{Mecheva20201,
title = {Cybersecurity in intelligent transportation systems},
author = {T Mecheva and N Kakanakov},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85092441448\&doi=10.3390%2fcomputers9040083\&partnerID=40\&md5=695507274a3ee8ac9c66098512cfc13f},
doi = {10.3390/computers9040083},
issn = {2073431X},
year = {2020},
date = {2020-01-01},
journal = {Computers},
volume = {9},
number = {4},
pages = {1-12},
publisher = {MDPI AG},
abstract = {Intelligent Transportation Systems (ITS) are emerging field characterized by complex data model, dynamics and strict time requirements. Ensuring cybersecurity in ITS is a complex task on which the safety and efficiency of transportation depends. The imposition of standards for a comprehensive architecture, as well as specific security standards, is one of the key steps in the evolution of ITS. The article examines the general outlines of the ITS architecture and security issues. The main focus of security approaches is: configuration and initialization of the devices during manufacturing at perception layer; anonymous authentication of nodes in VANET at network layer; defense of fog-based structures at support layer and description and standardization of the complex model of data and metadata and defense of systems, based on AI at application layer. The article oversees some conventional methods as network segmentation and cryptography that should be adapted in order to be applied in ITS cybersecurity. The focus is on innovative approaches that have recently been trying to find their place in ITS security strategies. These approaches includes blockchain, bloom filter, fog computing, artificial intelligence, game theory and ontologies. In conclusion, a correlation is made between the commented methods, the problems they solve and the architectural layers in which they are applied. © 2020 by the authors. Licensee MDPI, Basel, Switzerland.},
note = {cited By 0},
keywords = {cst},
pubstate = {published},
tppubtype = {article}
}
Intelligent Transportation Systems (ITS) are emerging field characterized by complex data model, dynamics and strict time requirements. Ensuring cybersecurity in ITS is a complex task on which the safety and efficiency of transportation depends. The imposition of standards for a comprehensive architecture, as well as specific security standards, is one of the key steps in the evolution of ITS. The article examines the general outlines of the ITS architecture and security issues. The main focus of security approaches is: configuration and initialization of the devices during manufacturing at perception layer; anonymous authentication of nodes in VANET at network layer; defense of fog-based structures at support layer and description and standardization of the complex model of data and metadata and defense of systems, based on AI at application layer. The article oversees some conventional methods as network segmentation and cryptography that should be adapted in order to be applied in ITS cybersecurity. The focus is on innovative approaches that have recently been trying to find their place in ITS security strategies. These approaches includes blockchain, bloom filter, fog computing, artificial intelligence, game theory and ontologies. In conclusion, a correlation is made between the commented methods, the problems they solve and the architectural layers in which they are applied. © 2020 by the authors. Licensee MDPI, Basel, Switzerland.
7.
Pavlova, P E; Pachedjieva, B K
Institute of Electrical and Electronics Engineers Inc., 2020, ISBN: 9781728174266, (cited By 0).
Abstract | Links | BibTeX | Tags: cst, e
@conference{Pavlova2020,
title = {Methodology for numerical assessments of the quality of cloud fields images used in time mutability method},
author = {P E Pavlova and B K Pachedjieva},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85097077784\&doi=10.1109%2fET50336.2020.9238283\&partnerID=40\&md5=3a7c42178bcd4270b32024f9fd51e79c},
doi = {10.1109/ET50336.2020.9238283},
isbn = {9781728174266},
year = {2020},
date = {2020-01-01},
journal = {2020 29th International Scientific Conference Electronics, ET 2020 - Proceedings},
publisher = {Institute of Electrical and Electronics Engineers Inc.},
abstract = {The methodology described below supports the time mutability method for estimating cloud drift velocity. A technique for determination numerical values of the contrast and impulse noise level in images of cloud fields is presented. The contrast for the entire image and the level of the impulse noise for the entire image and in addition-in angular directions have been calculated in accordance with the method for drift velocity estimation. The evaluations have been realized by special developed software modules. © 2020 IEEE.},
note = {cited By 0},
keywords = {cst, e},
pubstate = {published},
tppubtype = {conference}
}
The methodology described below supports the time mutability method for estimating cloud drift velocity. A technique for determination numerical values of the contrast and impulse noise level in images of cloud fields is presented. The contrast for the entire image and the level of the impulse noise for the entire image and in addition-in angular directions have been calculated in accordance with the method for drift velocity estimation. The evaluations have been realized by special developed software modules. © 2020 IEEE.
8.
Pachedjieva, B K; Pavlova, P E
Institute of Electrical and Electronics Engineers Inc., 2020, ISBN: 9781728174266, (cited By 0).
Abstract | Links | BibTeX | Tags: cst, e
@conference{Pachedjieva2020,
title = {Stochastic objects velocity estimation using Modified Time Mutability Method, based on two-dimensional images},
author = {B K Pachedjieva and P E Pavlova},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85097062584\&doi=10.1109%2fET50336.2020.9238177\&partnerID=40\&md5=5c643c35c3c2cdc7dc22e5d166f958ce},
doi = {10.1109/ET50336.2020.9238177},
isbn = {9781728174266},
year = {2020},
date = {2020-01-01},
journal = {2020 29th International Scientific Conference Electronics, ET 2020 - Proceedings},
publisher = {Institute of Electrical and Electronics Engineers Inc.},
abstract = {The time mutability method allows estimation of drift velocity of stochastic objects basing on sequences of their images. A procedure for constructing and selecting rotational radial-sections from two-dimensional images through which a velocity field can be constructed is proposed. The constructed sections are applied to determine the velocity field of a cloud field based on a series of its two-dimensional images. Numerical examples, illustrated by graphic material, have been shown. © 2020 IEEE.},
note = {cited By 0},
keywords = {cst, e},
pubstate = {published},
tppubtype = {conference}
}
The time mutability method allows estimation of drift velocity of stochastic objects basing on sequences of their images. A procedure for constructing and selecting rotational radial-sections from two-dimensional images through which a velocity field can be constructed is proposed. The constructed sections are applied to determine the velocity field of a cloud field based on a series of its two-dimensional images. Numerical examples, illustrated by graphic material, have been shown. © 2020 IEEE.
9.
Kanevskiy, M; Borisova, E; Mironova, I; Konnova, S; Galitskaya, A; Khorovodov, A; Agranovich, I; Pavlova, P; Avramov, L; Semyachkina-Glushkovskaya, O
Stress-induced gastric adenocarcinoma: Fluorescent and electrical measurements Journal Article
In: Journal of Optoelectronics and Advanced Materials, vol. 22, no. 5-6, pp. 316-322, 2020, ISSN: 14544164, (cited By 0).
Abstract | Links | BibTeX | Tags: cst
@article{Kanevskiy2020316,
title = {Stress-induced gastric adenocarcinoma: Fluorescent and electrical measurements},
author = {M Kanevskiy and E Borisova and I Mironova and S Konnova and A Galitskaya and A Khorovodov and I Agranovich and P Pavlova and L Avramov and O Semyachkina-Glushkovskaya},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85090525717\&partnerID=40\&md5=212d0dbefcdd10081ef9492d2f96b481},
issn = {14544164},
year = {2020},
date = {2020-01-01},
journal = {Journal of Optoelectronics and Advanced Materials},
volume = {22},
number = {5-6},
pages = {316-322},
publisher = {National Institute of Optoelectronics},
abstract = {We studied gender differences in gastric tumor in rats using original model of gastric adenocarcinoma and photodiagnostics with delta-aminolevulinic acid, and impedance measurements of the stomach, liver and red blood cells in rats of both genders. Highly heterogeneous gastric adenocarcinoma in rats of both genders was induced by means of a prolonged exposure to social and chemical stresses. Exogenous fluorescence mapping using 5-aminolevulinic acid / protoporphyrin IX was performed on the developed tumors, and the suspicious areas were investigated and compared with the surrounding intact tissues by electrical bio-impedancemetry techniques. The histological data revealed significant gender differences in as the number of male rats with neoplasia was higher by a factor of 1.5. Exogenous fluorescence maps were detected in gastric cancerous areas, but no gender correlation was observed. Significant gender differences were revealed when bioelectrical impedance and polarization coefficients patterns were measured. In some cases, photodiagnosis yielded a false-positive exogenous fluorescence due to dye accumulation in benign and inflammatory mucosal areas and the application of additional methods, such as impedance measurement of gastric tissues and red blood cells might prove to be a promising way of improving the diagnostic efficiency of photodiagnosis, including gender-related aspects. © 2020 National Institute of Optoelectronics. All rights reserved.},
note = {cited By 0},
keywords = {cst},
pubstate = {published},
tppubtype = {article}
}
We studied gender differences in gastric tumor in rats using original model of gastric adenocarcinoma and photodiagnostics with delta-aminolevulinic acid, and impedance measurements of the stomach, liver and red blood cells in rats of both genders. Highly heterogeneous gastric adenocarcinoma in rats of both genders was induced by means of a prolonged exposure to social and chemical stresses. Exogenous fluorescence mapping using 5-aminolevulinic acid / protoporphyrin IX was performed on the developed tumors, and the suspicious areas were investigated and compared with the surrounding intact tissues by electrical bio-impedancemetry techniques. The histological data revealed significant gender differences in as the number of male rats with neoplasia was higher by a factor of 1.5. Exogenous fluorescence maps were detected in gastric cancerous areas, but no gender correlation was observed. Significant gender differences were revealed when bioelectrical impedance and polarization coefficients patterns were measured. In some cases, photodiagnosis yielded a false-positive exogenous fluorescence due to dye accumulation in benign and inflammatory mucosal areas and the application of additional methods, such as impedance measurement of gastric tissues and red blood cells might prove to be a promising way of improving the diagnostic efficiency of photodiagnosis, including gender-related aspects. © 2020 National Institute of Optoelectronics. All rights reserved.
10.
Tsvetkov, V; Spasov, G; Petrova, G
IoT solution for monitoring of data in the visible and infrared spectrum Conference
Institute of Electrical and Electronics Engineers Inc., 2020, ISBN: 9781728174266, (cited By 0).
Abstract | Links | BibTeX | Tags: cst, e
@conference{Tsvetkov2020,
title = {IoT solution for monitoring of data in the visible and infrared spectrum},
author = {V Tsvetkov and G Spasov and G Petrova},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85097105673\&doi=10.1109%2fET50336.2020.9238289\&partnerID=40\&md5=d82b7d4199384b330e7f8dee1c7aca2f},
doi = {10.1109/ET50336.2020.9238289},
isbn = {9781728174266},
year = {2020},
date = {2020-01-01},
journal = {2020 29th International Scientific Conference Electronics, ET 2020 - Proceedings},
publisher = {Institute of Electrical and Electronics Engineers Inc.},
abstract = {In this paper a cost-effective combination between infrared and visible camera for thermal imaging applicable in Ambient Assisted Living (AAL) and object monitoring in smart homes is presented and demonstrated. In recent years, we have witnessed a rapid surge in assisted living technologies. Internet of Things (IoT) is a platform where every day devices become smarter, everyday processing becomes intelligent, and every day communication becomes informative. Our implementation is based on four layers IoT architecture. The user interface provides an option for manual adjustment of the image alignment from infrared and visible cameras. Apart from manual procedure, a procedure for the automatic alignment of the images of the both cameras have been developed. The time necessary for the image data processing by the microcontroller which gathers data from the sensors or by the gateway device is estimated. © 2020 IEEE.},
note = {cited By 0},
keywords = {cst, e},
pubstate = {published},
tppubtype = {conference}
}
In this paper a cost-effective combination between infrared and visible camera for thermal imaging applicable in Ambient Assisted Living (AAL) and object monitoring in smart homes is presented and demonstrated. In recent years, we have witnessed a rapid surge in assisted living technologies. Internet of Things (IoT) is a platform where every day devices become smarter, everyday processing becomes intelligent, and every day communication becomes informative. Our implementation is based on four layers IoT architecture. The user interface provides an option for manual adjustment of the image alignment from infrared and visible cameras. Apart from manual procedure, a procedure for the automatic alignment of the images of the both cameras have been developed. The time necessary for the image data processing by the microcontroller which gathers data from the sensors or by the gateway device is estimated. © 2020 IEEE.
11.
Pazhev, G; Spasov, G; Shopov, M; Petrova, G
On the use of blockchain technologies in smart home applications Conference
vol. 878, no. 1, Institute of Physics Publishing, 2020, ISSN: 17578981, (cited By 0).
Abstract | Links | BibTeX | Tags: cst, e
@conference{Pazhev2020,
title = {On the use of blockchain technologies in smart home applications},
author = {G Pazhev and G Spasov and M Shopov and G Petrova},
editor = {Shakev Ahmed N S Nikolov V. Petrov M.},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85089004112\&doi=10.1088%2f1757-899X%2f878%2f1%2f012023\&partnerID=40\&md5=4e5341aa8ee1b31b85ef7d86d0a162cb},
doi = {10.1088/1757-899X/878/1/012023},
issn = {17578981},
year = {2020},
date = {2020-01-01},
journal = {IOP Conference Series: Materials Science and Engineering},
volume = {878},
number = {1},
publisher = {Institute of Physics Publishing},
abstract = {The paper presents an implementation of a smart home architecture with two gateways based on collaboration of blockchain technology and Internet of Things (IoT) Message oriented middleware (MOM) architecture for management of internal home appliances. A basic overview of IoT MOM, MQTT (Message Queue Telemetry Transfer) protocol and blockchain architectures is made and the key characteristics and consensus algorithms are presented. Some challenges and the Ethereum smart contracts concept of the blockchain technology are discussed. © 2020 IOP Publishing Ltd. All rights reserved.},
note = {cited By 0},
keywords = {cst, e},
pubstate = {published},
tppubtype = {conference}
}
The paper presents an implementation of a smart home architecture with two gateways based on collaboration of blockchain technology and Internet of Things (IoT) Message oriented middleware (MOM) architecture for management of internal home appliances. A basic overview of IoT MOM, MQTT (Message Queue Telemetry Transfer) protocol and blockchain architectures is made and the key characteristics and consensus algorithms are presented. Some challenges and the Ethereum smart contracts concept of the blockchain technology are discussed. © 2020 IOP Publishing Ltd. All rights reserved.
12.
Kostadinov, A. N.; Kolev, K. I.
Application of a differentiated instruction approach in computer systems education Conference
2020, ISBN: 9781728175317.
Abstract | Links | BibTeX | Tags: cst
@conference{Kostadinov2020,
title = {Application of a differentiated instruction approach in computer systems education},
author = {A. N. Kostadinov and K. I. Kolev},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85099877150\&doi=10.1109%2fELECTRONICA50406.2020.9305107\&partnerID=40\&md5=d212542f7ead5c96330776723c682c75},
doi = {10.1109/ELECTRONICA50406.2020.9305107},
isbn = {9781728175317},
year = {2020},
date = {2020-01-01},
urldate = {2020-01-01},
journal = {11th National Conference with International Participation, ELECTRONICA 2020 - Proceedings},
abstract = {Sometimes there is a difference in students' level of knowledge on the topics included in their university courses. The lecturer should present material to all participants regardless of their background. We have selected a differentiated instruction approach to cope with mentioned problem. This method has been used in Reconfigurable Logic, VLSI Design as well as Computer Modeling subjects. The obtained results show that all students benefit from this approach. © 2020 IEEE.},
keywords = {cst},
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Sometimes there is a difference in students' level of knowledge on the topics included in their university courses. The lecturer should present material to all participants regardless of their background. We have selected a differentiated instruction approach to cope with mentioned problem. This method has been used in Reconfigurable Logic, VLSI Design as well as Computer Modeling subjects. The obtained results show that all students benefit from this approach. © 2020 IEEE.
13.
Boeva, V; Angelova, M; Devagiri, V M; Tsiporkova, E
Bipartite Split-Merge Evolutionary Clustering Journal Article
In: Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), vol. 11978 LNAI, pp. 204-223, 2019, ISSN: 03029743, (cited By 0).
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14.
Boeva, V; Angelova, M; Tsiporkova, E
A split-merge evolutionary clustering algorithm Conference
vol. 2, 2019, ISBN: 9789897583506, (cited By 1).
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15.
Garcia-Martin, E; Lavesson, N; Grahn, H; Casalicchio, E; Boeva, V
Hoeffding trees with nmin adaptation Conference
2019, ISBN: 9781538650905, (cited By 0).
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16.
Abghari, S; Boeva, V; Lavesson, N; Grahn, H; Ickin, S; Gustafsson, J
A Minimum Spanning Tree Clustering Approach for Outlier Detection in Event Sequences Conference
2019, ISBN: 9781538668047, (cited By 0).
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17.
Shopov, M; Kakanakova, I; Kakanakov, N; Mateev, B
An mHealth application for female fertility assistance Conference
2019, ISBN: 9789532900910, (cited By 0).
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title = {An mHealth application for female fertility assistance},
author = {M Shopov and I Kakanakova and N Kakanakov and B Mateev},
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18.
Spasov, G; Tsvetkov, V; Petrova, G
Using IR array MLX90640 to build an IoT solution for ALL and security smart systems Conference
2019, ISBN: 9781728125749, (cited By 0).
@conference{Spasov2019,
title = {Using IR array MLX90640 to build an IoT solution for ALL and security smart systems},
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19.
Spasov, G; Kutseva, M; Petrova, G; Tsvetkov, V
A Smart Solution for Electrical Power Monitoring Based on MCP39F501 Sensor Conference
2019, ISBN: 9781728125749, (cited By 0).
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title = {A Smart Solution for Electrical Power Monitoring Based on MCP39F501 Sensor},
author = {G Spasov and M Kutseva and G Petrova and V Tsvetkov},
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note = {cited By 0},
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20.
Atanassov, I
Proportionate (m,k)-firm Scheduling for Multiprocessor Systems Conference
2019, ISBN: 9781450371933, (cited By 0).
@conference{Atanassov2019,
title = {Proportionate (m,k)-firm Scheduling for Multiprocessor Systems},
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date = {2019-01-01},
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