Survey in Textual Entailment
نویسندگان
چکیده
Variability of semantic expression is a fundamental phenomenon of a natural language where same meaning can be expressed by different texts. Natural Language Processing applications like Question Answering, Summarization, Information Retrieval systems etc. often demand a generic framework to capture major semantic inferences in order to deal with the challenges created by this phenomenon. Textual Entailment can provide such framework. Textual Entailment can be defined as the phenomenon of inferring a text from another. Entailment is a directional relation between two texts. This relation holds when the truth of one text fragment follows from the truth of the other. Conventionally, the entailing fragment is called as text and entailed one is called as hypothesis. Textual entailment is classically defined as:
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