Up-to-date methods of automatic time expression resolution in natural language texts

The article is concerned with temporal information extraction from natural language text by means of time expression resolution. The paper studies the up-to-date achievements in the area mostly for English. Methods and techniques applied in the western automatic text processing systems are discussed, as well as the problem of using similar approaches for Russian.
Challenging issues are revealed, related to anaphora, deixis and ellipsis in temporal expressions. (In Russian).