[Solved]: Identifying events related to dates in a paragraph

Problem Detail: 

Is there an algorithmic approach to identify that dates given in a paragraph correlate to particular events (phrases) in the paragraph?

Example, consider the following paragraph:

In June 1970, the great leader took the oath. But it was only after May 1972, post the death of the Minister of State, that he took over the reins of the country. While he enjoyed popular support until Mid-1980, his influence began to fall thereafter.

Is there an algorithm (deterministic or stochastic)# that can generate a 2-tuple (date, event), where the event is implied, by the paragraph, to have occured on the date? In the above case:

• (June 1970, great leader took oath)

• (May 1972, took over the reins)

  or better yet

• (May 1972, the great leader took over the reins)
• (1980, fall in influence)

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#Later addition

Asked By : check123

Answered By : Suresh

In general, the problem of identifying dates and other temporal markers in text is called the problem of extracting temporal references. The search linked will take you to papers related to this.

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Question Source : http://cs.stackexchange.com/questions/221