Politicize and Depoliticize: A Study of Semantic Shifts on People's Daily Fifty Years' Corpus via Distributed Word Representation Space

The semantic meanings of words are always changing with time. In this paper, we focus on semantic shifts, a certain type of semantic change, which indicates the meaning changes of a bunch of words that are influenced by social trends in specific time period. By training distributed word representation spaces for segmented time periods in diachronic corpus and mapping them into a universal semantic space, the semantic shifts of a certain cluster of words can be reflected as an offset vector in the universal space.