A Study of Meta Search Interface for Retrieving Disaster Related Emergencies

To acquire the basic information about Emergent events is essential for government agencies as well as individuals to get well informed or to participate in relevant disasters relief activities. This paper presents a software interface model for intelligently retrieving emergent events on the internet through a Meta search engine interface. Particularly, we propose an H-T-E (Hazard, Trigger and Event) query expansion approach to get high relevance of ever updating event series, which expands the original query keywords by flexibly combining the event trigger words and hazard words together with the event theme terms. We build our interface in java based on the open source project Carrot2.The experimental results show that the proposed method can bring about increased accuracy and extra features not supplied by commercial search engines.