The actuality modality in the framework of the information extraction for texts written in a natural language

The article deals with the ”actuality” of the information extracted from the texts written in a natural language. The first part of the article is devoted to the basic notions we are using, such as proposition, modality and the speaker. In the second part the notion “actuality” is defined by describing its main components. The third part contains the list of the most important contexts for the basic case of “actuality”. (In Russian).