Dynamic Coalitions denote a temporary collaboration between different entities to achieve a common goal. A key feature that distinguishes Dynamic Coalitions from static coalitions is Dynamic Membership, where new members can join and others can leave after a coalition is set. This thesis studies workflows in Dynamic Coalitions, by analyzing their features, highlighting their unique characterist...

Event extraction systems typically locate the role fillers for an event by analyzing sentences in isolation and identifying each filler independently of others. We argue that more accurate requires a view larger context to decide whether entity is related relevant event. propose bottom-up approach initially identifies candidate then uses information as well discourse properties model textual co...