1. Information Storage Analysis & Retrieval group www.rmit.edu.au/compsci/infostorage

2. Research Focus Web search and text information retrieval Data mining & machine learning XML & Image/Video search Music retrieval Search effectiveness Efficiency RMIT University©2011 CS&IT - ISAR 2

3. Applications Our in-house search engine is Zettair –The fastest open source search engine in the world… –…and one of the most highly effective. Organizing international evaluation campaigns on search of –web services –Wikipedia –web pages RMIT University©2011 CS&IT - ISAR 3

4. Research staff & collaborations Research staff –Shane Culpepper, Simon Puglisi, Mark Sanderson, Falk Scholer, Jamie Thom, Sandra Uitdenbogerd, Jenny Zhang Collaborations –Companies –Sensis, Viocorp, Funnelback, Circus Oz –Academia –UMass Amherst, QUT, Macquarie University, University of Chile, University of Sheffield RMIT University©2011 CS&IT - ISAR 4

5. RMIT University©2011 CS&IT - ISAR 5 Data Mining sentiment analysis bioinformatics text mining machine learning –Efficient pattern discovery algorithms –Effective and novel learning models Jenny Zhang

6. Algorithms for Massive Data RMIT University©2011 CS&IT - ISAR 6 Research Strengths:  Space Efficient Data Structures  Data Compression  Text Processing and Indexing  Natural Language Processing  Distributed / Parallel Programming Shane Culpepper Possible Student Projects: Algorithms for Real-time Search  Algorithms for Real-time Search  Machine Driven Search  Data Compression Algorithms  Data Streaming Algorithms  Persistent and Parallel Data Structures  Language Independent Text Indexing  IR Applications of Self-Indexes  Applying NLP in Information Retrieval

7. Applications of Metadata and Multimedia Retrieval Accounting for Sustainability Representing and querying knowledge about sustainability indicators using XML, RDF, OWL, SPARQL The Circus Oz Living Archive Combination of – content based image and video retrieval – tagging of video RMIT University©2011 CS&IT - ISAR 7 James Thom

8. Social Information Search Mark Sanderson

9. Search interfaces and result presentation Measurement of performance User-based evaluation – what is a “useful” answer? Effective summarisation of documents Search Effectiveness RMIT University©2011 CS&IT - ISAR 9 Mark Sanderson, Audrey Tam, Falk Scholer