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Significance

Analyses the huge amounts of data.Understands human language and meaning

at massive scaleGenerates evidence based hypothesisLearns from the responses(Extended corpus)

Architecture

HARDWARE

Hardware

Watson is made up of a cluster of ninety IBM Power 750 servers with a total of 2880 POWER7 processor cores and 16 Terabytes of RAM.

Watson can process 500 gigabytes, the equivalent of a million books, per second. 

Watson's hardware cost at about $3 million and with 80 TeraFLOPs would be placed 94th on the Top 500 Supercomputers list, and 49th in the Top 50 Supercomputers list. 

The content was stored in Watson's RAM for the game because data stored on hard drives are too slow to access.

Software

Suse linux enterprise server Apache UIMA Ibm’s deepQa S/w Java ,c++,prolog

Comparision With Human Players

Watson's basic working principle is to parse keywords in a clue while searching for related terms as responses. This gives Watson some advantages and disadvantages compared with humanJeopardy! players. 

Watson has deficiencies in understanding the contexts of the clues. As a result, human players usually generate responses faster than Watson, especially to short clues. 

Watson's programming prevents it from using the popular tactic of buzzing before it is sure of its response. Watson has consistently better reaction time on the buzzer once it has generated a response, and is immune to human players' psychological tactics.

Future Uses

The goal is to have computers start to interact in natural human terms across a range of applications and processes, understanding the questions that humans ask and providing answers that humans can understand and justify.“

clinical decision support system to aid the diagnosis and treatment of patients.

Cancer treatment.

Conclusion

Cognitive computing, as the new field is called, takes computing concepts to a whole new level.

Its not just a answering machine New technology that can interpret the content and context of human

language and analyze massive amounts of data will help. IBM Watson was developed as a sophisticated question and answer system to compete on Jeopardy! But now, IBM Watson is at work in healthcare.

Watson can help loan officers, portfolio managers, financial advisers, customer service representatives and other financial services professionals do their jobs better.

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