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Augmenting (personal) IR

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Presentation on theme: "Augmenting (personal) IR"— Presentation transcript:

1 Augmenting (personal) IR
Readings Review Two Topic Discussions Evaluation Papers returned & discussed Wildcard Week ideas Papers and Projects checkin time

2 What do we mean by augment?
Douglas Englebart’s system GUI Interaction Connectivity Management Improve upon Extend user capabilities Do what you want, but faster “Do what I mean, not what I say” What are some ways to augment?

3 What is Personalization?
In computing? Optimized System specific In interfaces? Modes of interaction Appropriate for user level For IR? Results Time Mode (Relevance) Feedback

4 Personalized IR system design
How would you design a personal IR system? Who would use it? How would you learn about them? Interests Sources Preferences How do you evaluate a personal system? Understanding users is the key to personalizing search or search interfaces.

5 Letizia Interleaving browsing with (automated) search
Augmented browsing = less searching? Understanding your usage preferences “Behavior based” Letizia explores for you “doing concurrent, autonomous exploration of links from the user’s current position” p1 PageRank for individuals? PageRank for the exact situation? Smart crawling based on a profile?

6 Letizia’s Inferences What you do tells the systems your interests and habits List of keywords about your interests Persistence of interest issues Shifts Time to restate interest Automated queries, keyword matches Doesn’t get in the way (much) What about the interface? Making Web search better?

7 Siteseer “Personalized navigation for the Web” Isn’t this a CF system?
Bookmarks are key indicators of interest Category fits Implicit recommendations

8 How to personalize the Web: WBI
Interests are bookmarks or home pages Links Text Proxy-like between the user the Web Agent like functions Monitor - records features Editor - tweaks retrieved information Generator - request to response Autonomous agent - triggers

9 Outride Data mining for personalized search
Fast model fitting for profiles Search keyword augmentation Interests Preferences “Contextual Computing” Just in time information Situational More than content analysis “Author relevancy”

10 Personalized Search Efficiency
Contextualization Activity Availability Individualization User goals (models of Iseek) (Past) behavior Interface Awareness and customization

11 Personalization vs. Customization
What’s the difference? For a system, for a user Interaction methods, selection methods My.yahoo.com vs. amazon.com AskJeeves vs. a Reference Librarian

12 Topic Presentations What do these systems seem to offer?
How would you use them? What’s different than you expected? Better or Worse? From your deign ideas?

13 WIRED System Evaluations
Install IR software Set up documents for indexing What types of documents Sizes, formats, time to index? Perform some searches Note search functionality Describe (screen shot?) interface for search Examine results Describe (screen shot?) results page/screen Rotate, use subset of documents Note differences in queries What model, index, system do you think the system uses (based on class discussions & readings)?


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