Risø 29/1/1999 http://www.dcs.gla.ac.uk/~mark/talks/ 1

Mark Dunlop

My view of Information Retrieval

Current research topics

Some future directions

UNIVERSITYof

GLASGOW

Risø 29/1/1999 http://www.dcs.gla.ac.uk/~mark/talks/ 2

My view of basic IR

Compare

Initial query

Find me documents

about Alice and

conversations.

Ranked

Document

Representations

Documents

Document

Representations

Instantiate

User’s

information

need

Write

Author’s

Ideas

Query

Representation

Re-rank

Index1

Index2

Mark

Relevant

Risø 29/1/1999 http://www.dcs.gla.ac.uk/~mark/talks/ 3

Current research topics

IR oriented Using additional information to enhance queries Expected Search Duration evaluation model Evaluation in general

HCI oriented Usability of mobile computing devices

Risø 29/1/1999 http://www.dcs.gla.ac.uk/~mark/talks/ 4

Enhancing queries

Use of contextual info My thesis Vassillis Harmandas’s WIRE system Theodore Dalamagas’s HIM system

Cross session/historic info Robert Villa’s PhD

Risø 29/1/1999 http://www.dcs.gla.ac.uk/~mark/talks/ 5

Simple thesis model

Risø 29/1/1999 http://www.dcs.gla.ac.uk/~mark/talks/ 6

WIRE

Risø 29/1/1999 http://www.dcs.gla.ac.uk/~mark/talks/ 7

HIM

Risø 29/1/1999 http://www.dcs.gla.ac.uk/~mark/talks/ 8

Expected Search Duration

Aims to predict time to complete stereotypical search tasks add user interface aspects to the test-collection

(TC) evaluation approach

Built on combining expanded versions of Cooper’s Expected Search Length TC measure Green and Benyon’s ERMIA interface modelling

Future: test predictions and “package”

Risø 29/1/1999 http://www.dcs.gla.ac.uk/~mark/talks/ 9

ERMIA model of Alta Vista

Risø 29/1/1999 http://www.dcs.gla.ac.uk/~mark/talks/ 10

Sample ESD graph

Risø 29/1/1999 http://www.dcs.gla.ac.uk/~mark/talks/ 11

Evaluation

Mira (CEU funded working group)

Organisation of workshops and conference Experiments with Steve Draper on testing

different classic HCI evaluation approaches

Gauguin Potential follow on bid for EU network

Risø 29/1/1999 http://www.dcs.gla.ac.uk/~mark/talks/ 12

Mobile Computing 1

Paraglide - newly funded EPSRC project

Palm held anaesthesia record assistant Design & evaluation of gestural interfaces Use of contextual analysis to limit input space With Phil Gray and Martin Gardner

Ramblin Gumption - moving understanding

Developing grant bid on novel input techniques for “limited display devices”

With Phil Gray and Steve Brewster

Risø 29/1/1999 http://www.dcs.gla.ac.uk/~mark/talks/ 13

Mobile Computing 2

Undergraduate projects Alphasliders Starfield displays Dictionary aided text entry on a mobile phone

Mobile workshops Glasgow 98 INTERACT 99

Risø 29/1/1999 http://www.dcs.gla.ac.uk/~mark/talks/ 14

Additional future directions

Developing an encompassing model of contextual information Personal info/contexts/descriptions? Transparent use of context info (e.g. open documents)? Robert’s historical info?

Bringing authors into the evaluation process Applying HCI theories in IREmbedding IR in devices