EAN: 9783031011306

SYNTHESIS LECTURES ON INFORMATION CONCEPTS RETR...

Improvements in network bandwidth along with dramatic drops in digital storage and processing
costs have resulted in the explosive growth of multimedia (combinations of text  image  audio 
and video) resources on the Internet and in digital repositories. A suite of computer
technologies delivering speech  image  and natural language understanding can automatically
derive descriptive metadata for such resources. Difficulties for end users ensue  however  with
the tremendous volume and varying quality of automated metadata for multimedia information
systems. This lecture surveys automatic metadata creation methods for dealing with multimedia
information resources  using broadcast news  documentaries  and oral histories as examples.
Strategies for improving the utility of such metadata are discussed  including computationally
intensive approaches  leveraging multimodal redundancy  folding in context  and leaving
precision-recall tradeoffs under user control. Interfaces building from automatically generated
metadata are presented  illustrating the use of video surrogates in multimedia information
systems. Traditional information retrieval evaluation is discussed through the annual National
Institute of Standards and Technology TRECVID forum  with experiments on exploratory search
extending the discussion beyond fact-finding to broader  longer term search activities of
learning  analysis  synthesis  and discovery. Table of Contents: Evolution of Multimedia
Information Systems: 1990-2008   Survey of Automatic Metadata Creation Methods   Refinement of
Automatic Metadata   Multimedia Surrogates   End-User Utility for Metadata and Surrogates:
Effectiveness  Efficiency  and Satisfaction

Aktuelle Preise zur EAN 9783031011306

Produktinformationen zur 9783031011306