Search results for "decision fusion"

showing 4 items of 4 documents

Facial geometry and speech analysis for depression detection.

2017

Depression is one of the most prevalent mental disorders, burdening many people world-wide. A system with the potential of serving as a decision support system is proposed, based on novel features extracted from facial expression geometry and speech, by interpreting non-verbal manifestations of depression. The proposed system has been tested both in gender independent and gender based modes, and with different fusion methods. The algorithms were evaluated for several combinations of parameters and classification schemes, on the dataset provided by the Audio/Visual Emotion Challenge of 2013 and 2014. The proposed framework achieved a precision of 94.8% for detecting persons achieving high sc…

Decision support systemFacial expressionDepressive DisorderDepressionSpeech recognition05 social sciencesNearest neighbourClassification scheme02 engineering and technologyFacial geometryBinary operationFace0502 economics and business0202 electrical engineering electronic engineering information engineeringDecision fusionHumansSpeech020201 artificial intelligence & image processingPsychologyClassifier (UML)050203 business & managementAlgorithmsAnnual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference
researchProduct

A decision support system based on multisensor data fusion for sustainable greenhouse management

2018

The sustainable exploitation of natural resources is nowadays an important challenge for governments and institutions, considering the expected increase of the world population. In order to respond to this emergent criticality, the principles of green economy have been introduced in the European policy discussion to achieve a good compromise between the sustainability and the profitability of productions by increasing the efficiency of farming operations. Such approach poses some technical and financial challenges for small-sized enterprises because they generally do not possess adequate internal knowledge, nor they can acquire external expertise due to their budget restrictions. Decision S…

Decision support systemStrategy and ManagementContext (language use)02 engineering and technologyIndustrial and Manufacturing EngineeringGreen economyContextual designSettore ING-IND/17 - Impianti Industriali Meccanici0202 electrical engineering electronic engineering information engineeringEconomicsDecision support systemGeneral Environmental ScienceGreen economyPrecision agricultureRenewable Energy Sustainability and the EnvironmentManagement scienceSettore AGR/09 - Meccanica AgrariaIntegrated pest management04 agricultural and veterinary sciencesSensor fusionRisk analysis (engineering)Sustainability040103 agronomy & agriculture0401 agriculture forestry and fisheries020201 artificial intelligence & image processingProfitability indexDecision fusionPrecision agricultureWireless sensor network
researchProduct

Joint local quantization and linear cooperation in spectrum sensing for cognitive radio networks

2014

—In designing cognitive radio networks (CRNs), protecting the license holders from harmful interference while maintaining acceptable quality-of-service (QoS) levels for the secondary users is a challenge effectively mitigated by cooperative spectrum sensing schemes. In this paper, cooperative spectrum sensing in CRNs is studied as a three-phase process composed of local sensing, reporting, and decision/data fusion. Then, a significant tradeoff in designing the reporting phase, i.e., the effect of the number of bits used in local sensing quantization on the overall sensing performance is identified and formulated. In addition, a novel approach is proposed to jointly optimize the linear soft-…

non-ideal reporting channelcognitive radio (CR)quantizationdecision fusioncooperative spectrum sensing
researchProduct

Linear fusion of interrupted reports in cooperative spectrum sensing for cognitive radio networks

2015

Interrupted reporting has recently been introduced as an effective method to increase the energy efficiency of cooperative spectrum sensing schemes in cognitive radio networks. In this paper, joint optimization of the reporting and fusion phases in a cooperative sensing with interrupted reporting is considered. This optimization aims at finding the best weights used at the fusion center to construct a linear fusion of the received interrupted reports, jointly with Bernoulli distributions governing the statistical behavior of the interruptions. The problem is formulated by using the deflection criterion and as a nonconvex quadratic program which is then solved for a suboptimal solution, in a…

ta113Mathematical optimizationFusionta213Artificial neural networkComputer sciencedecision fusioncooperative spectrum sensingBernoulli's principleCognitive radionon-ideal reporting channelscorrelationcognitive radio (CR)Quadratic programmingEfficient energy use2015 IEEE 26th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC)
researchProduct