Data streams are a very important source of information for both researchers and ordinary
users. Data streams might be video or audio streams or might be a stream of sensor
readings, satellite images, etc. Saving data streams in digital libraries add the advantages of
using digital libraries from archival, preservation, administration, access control, etc. to this
information. For this specific type of digital libraries, event based retrieval provides an
alternative, yet very natural way of retrieving information. People tend to remember or search�…

Detta streams are a very inportant source of infornation for both researchers and ordinary
users. Đata sireams might be video or audio streams or night be a stream of sensor
readings, satellite inages, etc. Saving data streams in digital libraries add the advantages of
tusing digitai libraries fron archival, preservation, administration, access control, etc to this
information. For this specific type of digital libraries, event-based retrieval provides an
alternative, yet a very natural way of retrieving information. People tend to renember or�…