Search results for "hierarchical cluster analysi"

showing 3 items of 3 documents

Comparative analysis of eight cytotoxicity assays evaluated within the ACuteTox Project.

2013

A comparative analysis of eight cytotoxicity assays [the 3T3 and normal human keratinocytes Neutral Red Uptake (NRU) assay, the primary rat hepatocytes, human HepG2 and 3T3 MU assay, and the human A.704, SH-SY5Y and HepG2 cells propidium iodide (PI) assay] included in several work packages of the EU Integrated Project ACuteTox, has been carried out. The aim was to evaluate whether cells originating from liver, kidney and brain provided different in vitro acute toxicity results, and the influence of primary liver cells versus cell lines originated from the same tissue. Spearman rank correlation analysis and Hierarchical Cluster Analysis were performed based on the IC50 (50% inhibitory concen…

Neutral redCell SurvivalCytotoxicityBiologyToxicologyConcentration-response analysischemistry.chemical_compoundMiceCell Line TumorToxicity Tests AcuteAnimalsHumansMTT assayPropidium iodideCytotoxicityCells CulturedAcute toxicityCytotoxinsIn vitro toxicologyCorrelation analysisGeneral Medicine3T3 CellsMolecular biologyAcute toxicityRatsHierarchical Cluster AnalysischemistryCell cultureToxicityImmunologyIn vitro assaysHepatocytesToxicology in vitro : an international journal published in association with BIBRA
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A quantitative analysis of Educational Data through the Comparison between Hierarchical and Not-Hierarchical Clustering

2017

Many research papers have studied the problem of taking a set of data and separating it into subgroups through the methods of Cluster Analysis. However, the variables and parameters involved in Cluster Analysis have not always been outlined and criticized, especially in the field of Science Education. Moreover, in the field of Science Education, a comparison between two different Clustering methods is not discussed in the literature. Conceptions of students about modeling in physic are investigated by using an open-ended questionnaire. The questionnaire is analyzed through Clustering methods. The clustering results obtained by using the two methods are compared and show a good coherence bet…

Not-hierarchical cluster analysi3304Settore FIS/08 - Didattica E Storia Della Fisicacomputer.software_genre01 natural sciencesScience educationEducationSet (abstract data type)010104 statistics & probability0101 mathematicsCluster analysisEvaluationScience educationHierarchical cluster analysiPoint (typography)Applied Mathematics05 social sciencesModeling050301 educationCoherence (statistics)Settore MAT/04 - Matematiche Complementarivaluation hierarchical cluster analysis modeling not-hierarchical cluster analysis science educationField (geography)Hierarchical clusteringQuantitative analysis (finance)Data mining0503 educationcomputer
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DISCOVER POTENTIAL SEGMENTS OF WINE SHOPS BASING ON SALES STRATEGIES BY CLUSTER ANALYSIS

2015

The HORECA channel is a very important for promoting high-quality wines. In fact, through this distribution channel, consumers can experience wines before purchasing, taste them also with foods and receive additional information. Market segmentation is very crucial for businesses; therefore specific criteria must be applied for a successful segmentation. In this study wine shop segmentation was carried out by explorative hierarchical Cluster Analysis in order to discover potential segments of wine shops and wine bars based on their sales strategies. Moreover, wine shop(s) role in dissemination of information about quality wines was investigated. A census was carried out in a selected Italia…

business segmentation; target of consumers; census survey; hierarchical cluster analysis; HORECA channelhierarchical cluster analysiHORECA channelSettore AGR/01 - Economia Ed Estimo Ruralecensus surveybusiness segmentationtarget of consumer
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