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366 15 Combining Information Consider the diagnosis problem of the patient suffering from a headache introduced at the beginning ...

15.5 Dempster-Shafer Theory 367 If X and Y are elementary D-S distributions which can be combined, then the combination Z is als ...

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16 The Bayesian Web 16.1 Introduction The Semantic Web is an extension of the World Wide Web in which infor- mation is given a w ...

370 16 The Bayesian Web Fuse BNs obtained from disparate sources by identifying variables that measure the same phenomenon Reco ...

16.3 Extending the Semantic Web 371 Meta-Analysis. Multiple BNs can be combined to form new BNs. This is a very different form ...

372 16 The Bayesian Web Figure 16.1 The Semantic Web architecture. 16.4 Ontologies for Bayesian Networks The first requirement f ...

16.4 Ontologies for Bayesian Networks 373 <VAR NAME="Cold" TYPE="discrete"> <DESCRIPTION>Patient has mild upper resp ...

374 16 The Bayesian Web <DIST TYPE="discrete"> <CONDSET> <CONDELEM NAME="Flu"/> <CONDELEM NAME="Cold"/> ...

16.4 Ontologies for Bayesian Networks 375 The CPDs are the most complex elements. In general, a CPD is a list of PDs. The list i ...

376 16 The Bayesian Web While one would think that the notion of a random variable is unambigu- ous, in fact it is a combination ...

16.4 Ontologies for Bayesian Networks 377 Figure 16.3 Ontology for conditional probability distributions. Each CPE specifies a w ...

378 16 The Bayesian Web tributions. The uniform distribution is on the unit interval and the normal has mean 0 and variance 1. O ...

17 Answers to Selected Exercises ANSWER TO EXERCISE1.1 <bio_sequence element_id="U83302" sequence_id="MICR83302" organism_nam ...

380 17 Answers to Selected Exercises ANSWER TO EXERCISE1.3 <physical_unit name="millisecond"> <factor prefix="milli" un ...

381 </component> <component name="ionic_current"> <variable name="I_ion" interface="out" physical_unit="microA_pe ...

382 17 Answers to Selected Exercises <element name=’atomArray’> <complexType> <sequence> <element ref=’t:at ...

383 in the molecule schema to <attribute name=’elementType’ type=’elementTypeType’ use=’optional’/> whereelementTypeTypeis ...

384 17 Answers to Selected Exercises <simpleType name="DNASequence"> <list itemType="DNABase"/> </simpleType> ...

385 ANSWER TO EXERCISE4.2 Using the ontology in the sample answer above, nitrous oxide would be the following: ...