This language explosion clearly forces researchers to focus on the challenging problem of being able to analyze and understand text written in any language.
their main difference, instead, lies in the range of translations which are assumed to be valid: that is, while CL-LS assumes no predefined sense inventory (i.e., any translation can be potentially correct), CL-WSD makes use of a sense inventory built on the basis of the Europarl corpus (Koehn, 2005).