Abstract: A system, method and a computer readable medium for providing virtual learning of academic topic unrelated to languages in a non-native language of a student. The system includes an input device, which receives user input, a datastore, which stores the academic topic. At least a portion of the academic topic is stored in both native and non-native languages. The system further includes a processor, which obtains the academic topic based on the user input and an output device, which outputs the academic topic provided by the processor to a user. The academic topic is obtained by the processor with sheltered instruction in the non-native language. Upon a user request, the continuous providing of the academic topic is paused and at least one key term of the academic topic is provided in the native language.

Abstract: A system for visually representing user behavior within an interactive voice response (IVR) system of a call processing center generates a complete sequence of events within the IVR system for plural calls to the call processing center, the plurality of calls being recorded from end to end. A call flow of the IVR system is modeled as a non-deterministic finite-state machine, such that a start state of the finite-state machine represents a first prompt of the IVR system, other states of the finite-state machine represent subsequent prompts at which a branching occurs in the call flow of the IVR system, exit conditions are represented as end states, and transitions of the finite-state machine represent transitions between call flow states triggered by data inputted by a user or by internal processing of the IVR system. The complete sequences of events for the plural calls are provided to the finite-state machine to produce a two-way matrix of several counters.