Experiments for NTCIR-8 Technical Trend Map Creation Subtask at Hitachi
Yusuke Sato, Makoto Iwayama · 2010
This paper reports on an experiment to evaluate the extraction of effect expressions from patents and papers (in Japanese) at the subtask of Technical Trend Map Creation in NTCIR-8 Patent Mining Task. To obtain a more detailed structure for the expressions, we defined that effect expressions consist of TARGET, SCALE and IMPACT elements. We created training data based on these elements and assigned tags by supervised learning. Then, on the basis of conversion rules and dependency relationships, we converted these independently defined tags to the ATTRIBUTE, VALUE and EFFECT tags. Categories and Subject Descriptors