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In this paper, the authors describe an approach for detection and visualization of coordinate term relationships over time and their evolution using temporal data available on the Web. Coordinate terms are terms with the same hypernym and they often represent rival or peer relationships of underlying objects. The authors have built a system that portrays the evolution of coordinate terms in an easy and intuitive way based on data in an online news archive collection spanning more than 100 years. With the proposed method, it is possible to see the changes in the peer relationships between objects over time together with the context of these relationships.
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