In addition, to better solve the heterogeneity issues in the presented layered cloud platform, ontology has been used as a promising way to address data representation, knowledge, and application heterogeneity, and an ontology-based security service framework is designed for supporting security and privacy preservation in the process of interactions/interoperations.
One approach of solving the channel heterogeneity among the users is to make use of hierarchy in data [14].
Because it solves the transport equation stochastically, complicated geometry may be modeled exactly and therefore heterogeneity even at the most detailed level does not challenge the method.
Current histo-clinical prognostic factors and the factors predictive for response to a given therapy are not sufficient to solve this heterogeneity, basing the choice of adjuvant chemotherapy regimen upon the risks of relapse and toxicity, comorbidities and physician's experience, rather than upon the probability of efficiency.
Cognitive radio (CR), which enables secondary users (SUs) to temporarily utilize in an opportunistic fashion the non-in-use spectrum bands allocated to the primary users (PUs) of the spectrum, has been proposed as a promising technology to improve spectrum usage and solving the problem of heterogeneity of radio devices [1].
Risk stratification systems based on histoclinical features exist, but are not perfect to solve the actual prognostic heterogeneity of disease.
Another methodology worth to be mentioned is the one using "state transition diagram" [ 38, 39] which aims to solve the problem of heterogeneity and multiscale modeling and the link between mathematical and computer models [ 40].
The proposed method including an priority-based robust image block transmission scheme is specifically designed for solving the instability and the heterogeneity of the mobile cloud environment, and an index-support image set reduction algorithm is introduced for reducing the data transfer cost involved.
To solve the problem of reservoir heterogeneity, gel treatments are widely used in oilfields (Zitha and Darwish 1999; Thomas et al. 2000; Bai et al. 2007a, b; Wang et al. 2008; Al-Muntasheri and Zitha 2009; Wu et al. 2011).
