Retrieval in Digital Libraries

Slide 2

What is Retrieved?

What are the ‘Sources of Evidence’ for Retrieval?

Retrieval Processes (how are needs expressed?)

Content-Centered Retrieval as Matching Document Representations to Query Representations

User-Centered Information-Seeking Process

Text Retrieval

Approaches to Text Retrieval

Full-Text Search

Inverted File

Vectors

Latent Semantic Indexing

Link Analysis: Citations
(relevance based on author judgments)

Link Analysis

Link parameters

Algorithms

Combining Multiple Sources of Evidence

Document Alternatives

Multimedia: Features for Indexing

Example: Color Histogram

Information-Seeking Process Revisited

Interactive Systems: Agile Views

Digital Library IR Challenges

DL IR Challenges (cont’)

Resources