1. A computer-based method for predicting escalations for web-based searching, comprising: extracting one or more escalation features from a webpage using a processor in a computing device; running the one or more escalation features through a classifier trained to estimate a likelihood of escalation; and generating an escalation likelihood result from running the trained classifier, the escalation likelihood result comprising one of: an estimation that a subsequent search query will comprise an escalation when compared to a previous search query; and an estimation that a subsequent webpage selection will comprise an escalation when compared to a previous webpage selection.