By John Debenham, Carles Sierra (auth.), Christian Huemer, Pasquale Lops (eds.)
This booklet constitutes the refereed complaints of the thirteenth overseas convention on digital trade and net applied sciences (EC-Web) held in Vienna, Austria, in September 2012.
The 15 complete and 4 brief papers authorized for EC-Web, chosen from forty five submissions, have been conscientiously reviewed in accordance with their originality, caliber, relevance, and presentation. they're equipped into topical sections on recommender platforms, safeguard and belief, mining and semantic prone, negotiation, and brokers and enterprise services.
Read Online or Download E-Commerce and Web Technologies: 13th International Conference, EC-Web 2012, Vienna, Austria, September 4-5, 2012. Proceedings PDF
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Extra resources for E-Commerce and Web Technologies: 13th International Conference, EC-Web 2012, Vienna, Austria, September 4-5, 2012. Proceedings
Example text
Thus, the monitor is an important component of the framework. The automated risk-computation mechanism works in tandem the monitor to enable PAEAN to prognosticate the potential risks of SLA violation without any manual intervention. The most significant task that our framework is able to do is repairing the fault without any manual intervention. PAEAN integrates adaptation mechanism that acts proactively to repair the fault. The paper is structured as follows: in Section 2, we present a motivating example, which shows the potential risk associating a business transaction at run-time.
This property may be used not only on time dimensions, but on all dimensions that represent a concept of the real world with a fixed structure. For example, the geographical distribution inside one country is similar among all DWs: an address contains a city, cities are organized in comunes, grouped into regions, and so on. By using this property, we can consider the dimension hierarchies as directed labeled graphs, where the label of each edge is the cardinality-ratio among different elements. Figure 2(a) is a directed labeled graph that represents the time dimension of the first schema (S1 ), while Fig.
We described the adaptation using an example shown in Fig 3. Fig. 3. A workflow model composed of services and their status of execution Fig. 3 shows a running workflow model composed of services that have different states, entailing: completed, delayed, failed, and not started. If a service in the workflow model fails or delays, the adaptation mechanism initiates the adaptation action. In Fig. 3, the state of service S2 has shown delayed or failed. We use two states of the same service to explain two cases.