ISYS 300 -- Week 9 Browsing & Output Representation

1. ISYS 300 -- Week 9Browsing & Output Representation Dr. Xia Lin Associate Professor College of Information Science and Technology Drexel University

2. Effective Information Retrieval • Iteration • Relevance Feedback • Use User's Profiles • Browsing/Interactive Searching • Graphical Display of Search Results

3. Browsing • Browsing is an act of human information seeking • a mental process of identifying and choosing information • a dynamic process that varies in time and depends on intermediate results. • a part of process of decision making, problem solving, etc.

4. Browsing for Information Retrieval • A kind of searching process in which the initial search criteria or goals are only partly defined • general-purpose web browsing • An art of not knowing what one wants until one finds it • visual recognition • content recognition

5. Browsing for Information Retrieval • A learning activity that emphasizes structures and interactive process • exploratory • movements based on feedback • A process of finding and navigating in a unknown or unfamiliar information space • becoming aware of new contents • finding unexpected results

6. Search or Browse? • Would you like to search using a search engine or would you like to browse from pages to pages (or through a hierarchy)? • Depend on what?

7. Search or Browse?

8. Factors of browsing • Purposes • Fact retrieval • Concept formation or interpretation • Current awareness • Tasks • Well-defined tasks • Ill-defined tasks • number of items to browse

9. Factors of browsing • Individual characteristics • Motivation • Experience and knowledge • Cognitive styles • Context • Subject disciplines • Organizational schemes • Nature of text/information • Medium • Does the system support browsing?

10. IR Systems that support browsing • Good navigation tools • Easy to move from one item to another • Links • good structures • fast access • Easy to back track • Correct any errors • make new selections

11. IR Systems that support browsing • Good displays • easy to read • meaningful orders of retrieval results • graphical presentation • Meaningful content organization • contextual hierarchical structures • Grouping of related items • Contextual landmarks

12. “why just browse when you can fly?” • HotSauce is an innovative 3D fly-through interface for navigating information spaces. It was developed, largely as a one-man effort, by Ramanathan V. Guha while at Apple Research in the mid-1990s. HotSauce was a specific 3D spatialization of the Meta Content Framework (MCF) also developed by Guha.

13. HotSauce

14. Visual Search Engines • TheBrain • Mooter • Kartoo • MapStan • Grokker • ToughGraph • StarNight • NewsLink

15. WebBrainhttp://www.webbrain.com/

16. Mooter: http://www.mooter.com/

17. Kartoo: http://www.kartoo.com/

18. MapStan: http://search.mapstan.com/

19. Grokker http://www.groxis.com/service/grok/g_products.html

20. Touchgraph • http://www.touchgraph.com/

21. Galaxy of News Rennison 95

22. Galaxy of News Rennison 95

23. Starrynight from RHIZOME

24. KartOO.com

26. Concept Visualization • AltaVista LiveTopic • HiBrowse Interface • SemioMap • Hyperbolic Trees • Visual Thesaurus • Visual Concept Explorer

27. Alta Vista’s LiveTopic

28. ConceptSpace

29. HiBrowse Interface

30. SemioMap

31. Inxight.com

32. Topic Maps • Highwire: http://www.highwire.org

33. Visual Thesaurus

34. Visual Concept Explorer

35. Concept Mapping

37. MedLine Search

38. Is Web easy to browsing? • How many pages do you browse after a search? • Getting loss in the web? • Don’t know where you are • Don’t know why you get here? • Don’t know how to get to the place you want to be • The Web is not visible !

39. Architecting Browsable Websites • Design site structures • Metaphor Exploration • Organizational metaphors • Functional metaphors • Visual metaphors • Define Navigation • Global navigation • Local navigation • Design Document

40. Information Architecture • To support browsing, a good structure is essential. • A new field of study is focusing on structures of information: • Information Structure

41. Information Architecture • "Information architecture involves the design of organization and navigation systems to help people find and manage information more successfully."

42. Information Architecture • Information architecture is the science of figuring out what you want your site to do and then constructing a blueprint before you dive in and put the thing together. • Information Architecture Tutorial by John Shiple

43. Information Architecture • Deals with the construction of a structure or the organization of information. • In a traditional library, information architecture is a combination of the catalog system and the physical design of the building. • On the Web, information architecture is a combination of organizing a site's content into categories and creating an interface to support those categories.

44. Information Architecture • Focuses on structures • Display structures and link structures • Content and semantic structures. • The integration of displays and contents. • Focuses on USABILITY • Searching • Browsing • Navigation

45. What do real architects think of information architecture? Architects vs. Information Architects • Architects deal with space • Is information in space or space in information? • Architects deal with structures • Physical structures in the physical space. • Liquid structures in the information space. • Architects deal with designs • Construction of the environment people physically interact with • Design of virtual environment people interact with.

46. Focusing on Design • Information Architecture deals with • Information Design • Navigation Design • Interaction Design • Visual Design • User Design • Experience Design

47. Output presentation • Two major issues • What information to present? • How to organize the output items? • Information in the output display • Traditional databases • Document reference numbers (unique number) • Citations (author, title, source) • Document surrogate (citation plus abstract and/or indexing terms) • fulltext

48. On the web • title, url • First few sentences/related sentences/summaries • Dates / page sizes • Degree of relevance • special links • “find similar one” • Types of links • Related categories

49. What other information you may wish to have in the retrieval output? • Citations (or links from this document)? • Critique or evaluation? • Access information (how many times it was accessed in last 6 months)? • Links to this document • Author contact information ? • Why documents were retrieved?

50. Output organization • Linear • a list of documents • listed by • best match • alphabetical orders • dates • order of selected fields (authors, titles, web sites)