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Social Sensing by Lance Kaplan, Tarek Abdelzaher, Dong Wang

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Chapter 7

Resolving conflicting observations and non-binary claims

Abstract

As we discussed in previous chapters, there are some limitations of the basic maximum likelihood estimation (MLE) model we introduced in Chapter 5. Two of them are: (1) the reported observations from different sources on the same claim are assumed to be corroborating. In another word, they do not contradict with each other. (2) The claims are assumed to be binary only. However, the above assumptions may not always hold in various kinds of social sensing applications. Interesting questions emerge: how to generalize the MLE model to explicitly handle conflicting observations from sources and non-binary claims? In this chapter, we reviewed two generalizations of the ...

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