We investigate whether the value of time (VOT) depends on when corresponding preferences are measured: in advance, just before, or after period for which being evaluated. find that VOT is highest elicited before period. This an indication affected by time-inconsistent, and more specifically, present-biased preferences. argue this result may explain why valuations based stated preference (SP) da...

We present a novel approach to weakly supervised semantic class learning from the web, using a single powerful hyponym pattern combined with graph structures, which capture two properties associated with pattern-based extractions: popularity and productivity. Intuitively, a candidate is popular if it was discovered many times by other instances in the hyponym pattern. A candidate is productive ...