THE SEARCH VALUE CURVE

THE SEARCH VALUE CURVE:

The curve represents Explicit, Implicit and Tacit search.

Explicit Search – Information Recovery: I know what I want, bring me it – The answer is the in the top results. “Give me the annual report for XYZ Corp” . Text links.

Implicit Search – Information Discovery: I know what I want to know about – The answer is in the interplay of the results. “What business are we doing with Microsoft?” Tag coulds, Entities.

Tacit Search – Structure from the unstructured. Recommendations: Tell me something I don’t know – User to User. Article to Article. User to Article. Trends. Alerting.

“What should I be aware of?”

SCALABILITY:

BUILT FOR OFF THE SHELF COMMODITY HARDWARE.

GRID COMPUTING STRUCTURE WITH NOTION OF ROWS AND COLUMNS.

WE INCREASE THE NUMBER OF COLUMNS TO INDEX MORE DOCUMENTS MORE QUICKLY.

WE INCREASE THE NUMBER OF ROWS TO SERVE MORE QUERIES .

LET SAY WE HAVE AN INTRANET AND AFTER TIME WE EXPERIENCE A GROWTH IN THE NUMBER OF WEBPAGES TO BE INDEXED – INITIALLY WE DIDN’T PROVISION FOR THIS – WE CAN SIMPLY PLUG IN A NEW SERVER COLUMN AND DOUBLE THE INDEX VOLUME & UPDATE RATE.

NOW LETS SAY WITH THE INCREASED CONTENT MORE USERS GET INTERESTED AND THE NUMBER OF QUERIES PER SECOND CLIMBS.

WE SIMPLY PLUG IN A NEW ROW TO DOUBLE QPS (QUERIES PER SECOND).

A NEW ROW ALSO ALLOWS FOR FAULT TOLERANCE.