USAAR-CHRONOS: Crawling the Web for Temporal Annotations

Abstract

This paper describes the USAAR-CHRONOS participation in the Diachronic Text Evaluation task of SemEval-2015 to identify the time period of historical text snippets. We adapt a web crawler to retrieve the original source of the text snippets and determine the publication year of the retrieved texts from their URLs. We report a precision score of >90% in identifying the text epoch. Additionally, by crawling and cleaning the website that hosts the source of the text snippets, we present Daikon, a corpus that can be used for future work on epoch identification from a diachronic perspective.

USAAR at SemEval-2016 Task 13: Hyponym Endocentricity

“…The Wikipedia List of Lists of Lists (LOLOL) is a crowdsourced list of lists of terms. We adapted the customized crawler 4 (Tan et al, 2014;Tan and Ordan, 2015) to crawl for tables or bullet points in the Wikipedia subpages of the LOLOL for the food domain. We started the crawl from these seed pages under the bullet point of https://en.wikipedia.org/wiki/ List of lists of lists#Food and drink.…”