... metric-based framework for the task of automatic taxonomy induction. The framework incrementally clus-ters terms based on ontology metric, a score indicating semantic distance; and transforms the ... of a tax-onomy. For a taxonomy T(C,R), we define its information function as: ∑∈<=CycxcyxyxccdTInfo,,),()( (1) Similarly, we define the information function for an abstraction ... me-ronym patterns; PR, the probabilistic framework by Snow et al. (2006); and ME, the metric-based framework proposed in this paper. To have a fair comparison, for PR, we estimate the conditional...