Context Acquisition
Knowing learners’ surrounding context in a ubiquitous learning environment is referred to as context acquisition.
Context acquisition can be realized by a process of getting values of the properties defined in the learner
ontology and service ontology. We classify context into current context and past context; the current context
reflects the run time environment while the past context reflects a historical execution path. Context acquisition
is mainly for detecting current context. When new context has been detected, the current context will become
past context and storage as learner ontology. As a result, we can treat learner ontology as a set of past context
which can be used for deriving preferences, portfolio, and behavioral patterns.