Seungho Nam

KTimeML: Specification of Temporal and Event Expressions in Korean Text

TimeML, TimeBank, and TTK (TARSQI Project) have been playing an important role in enhancement of IE, QA, and other NLP applications. TimeML is a specification language for events and temporal expressions in text. This paper presents the problems and solutions for porting TimeML to Korean as a part of the Korean TARSQI Project. We also introduce the KTTK which is an automatic markup tool of temporal and event-denoting expressions in Korean text.

Problematic Set-Denoting Temporal Expressions in the Framework of ISO-TimeML

This study investigates how to represent set-denoting temporal expressions with ISO-Time ML, a state-of-the-art framework for representing time expressions. Specifically, we will show its limitations, caused by characteristics of TIMEX3, i) the freq attribute can not represent both the frequency of time points and the time granularity at the same time. ii) set expressions structurally containing another set expressions can not be annotated in the current framework. iii) value attribute can not contain values of complex set-denoting expressions. iv) there are set-expressions that have no set marker. These limitations reveal that TIMEX3 needs to be modified or extended to represent those problematic temporal expressions.