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ONTOCOM Revisited: Towards Accurate Cost Predictions for Ontology Development Projects

ONTOCOM Revisited: Towards Accurate Cost Predictions for Ontology Development Projects,10.1007/978-3-642-02121-3_21,Elena Paslaru Bontas Simperl,Igor

ONTOCOM Revisited: Towards Accurate Cost Predictions for Ontology Development Projects   (Citations: 4)
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Reliable methods to assess the costs and benefits of ontologies are an important instrument to demonstrate the tangible business value of semantic technologies within enterprises, as an argument to encourage their wide-scale adoption. The economic aspects of ontologies have been investigated in previous work of ours. With ONTOCOM we proposed a cost estimation model for ontologies and ontology development projects. This paper revisits this model and presents its latest achievements. We report on a comprehensive calibration of ONTOCOM based on a considerably larger data set of 148 ontology development projects. The calibration used a combination of statistical methods, ranging from preliminary data analysis to regression and Bayes analysis, and resulted a significant improvement of the prediction quality of up to 50%. In addition, the availability of a representative data set allowed us to identify meaningful directions for customizing the generic cost model along particular types of ontologies, and ontology-like structures as those specific to the emerging Web 3.0. Last but not least, we developed a software tool that allows ontology development project managers to easily use and adapt and to systematically calibrate the model, thus facilitating its adoption in real-world projects.
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    • ...Ontology reuse reduces costs and development effort [1]...
    • ...This ranking is also influenced by a parameter α ∈ [0, 1] that the user can provide to combine global trust (GTR) and distrust (GDR )t o a GlobalCombinedRank (GCR)...
    • ...Input: on ∈ O, xk ∈ X,GTRonxk ,GDRonxk ,Fonxk ,Ionxk ,α i ∈ [0, 1] ,a i ∈ A Output :S orted Reviews...
    • ...Input: on ∈ O, xk ∈ X,GTRonxk ,GDRonxk ,α ∈ [0, 1] Output :S orted Reviews...

    Holger Lewenet al. Extending Open Rating Systems for Ontology Ranking and Reuse

    • ...2. For many recommendation scenarios domain knowledge is required in addition to data about users and items, however knowledge engineering is expensive, which characterises the knowledge acquisition problem [19, 4, 68]...
    • ...This adds the knowledge acquisition problem[19], which is characterised by the high effort of knowledge engineering [68]: In order to provide recommendations in knowledge intensive recommendation scenarios, a knowledge base about the recommendation domain and the users needs to be acquired...
    • ...While no other empirical analysis of the challenges of implementing Semantic Web applications exist, the ONTOCOM project [68] provides a detailed cost estimation model for ontology development projects...

    Benjamin Heitmann. ARCHITECTURE AND METHODOLOGIES FOR ADAPTIVE PERSONALISATION ON THE WEB...

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