“Computers are incredibly fast, accurate, and stupid. Human beings are incredibly slow, inaccurate, and brilliant.

Together they are powerful beyond imagination.” – Albert Einstein

WellPoint and IBM Announce Agreement to Put Watson to Work in Health Care

INDIANAPOLIS and ARMONK, N.Y., Sept. 12, 2011 /PRNewswire/ — WellPoint, Inc. (NYSE: WLP), and IBM (NYSE: IBM) announced an agreement today to create the first commercial applications of the IBM Watson technology. Under the agreement, WellPoint will develop and launch Watson-based solutions to help improve patient care through the delivery of up-to-date, evidence-based health care for millions of Americans. IBM will develop the base Watson healthcare technology on which WellPoint’s solution will run.

Watson, named after IBM founder Thomas J. Watson, is a computing system built by a team of IBM scientists who set out to accomplish a grand challenge – build a computing system that rivals a human’s ability to answer questions posed in natural language with speed, accuracy and confidence.  Earlier this year, Watson competed and won against two of the most celebrated players ever to appear on Jeopardy!. This historic match is being rebroadcast over three days, beginning today.

Watson’s ability to analyze the meaning and context of human language, and quickly process vast amounts of information to suggest options targeted to a patient’s circumstances, can assist decision makers, such as physicians and nurses, in identifying the most likely diagnosis and treatment options for their patients.

In recent years, few areas have advanced as rapidly as health care. For physicians, incorporating hundreds of thousands of articles into practice and applying them to patient care is a significant challenge. Watson can sift through an equivalent of about 1 million books or roughly 200 million pages of data, and analyze this information and provide precise responses in less than three seconds.

Using this extraordinary capability WellPoint is expected to enable Watson to allow physicians to easily coordinate medical data programmed into Watson with specified patient factors, to help identify the most likely diagnosis and treatment options in complex cases. Watson is expected to serve as a powerful tool in the physician’s decision making process.

Medical conditions such as cancer, diabetes, chronic heart or kidney disease are incredibly intricate. New solutions incorporating Watson are being developed to have the ability to look at massive amounts of medical literature, population health data, and even a patient’s health record, in compliance with applicable privacy and security laws, to answer profoundly complex questions. For example, we envision that new applications will allow physicians to use Watson to consult patient medical histories, recent test results, recommended treatment protocols and the latest research findings loaded into Watson to discuss the best and most effective courses of treatment with their patients.

“There are breathtaking advances in medical science and clinical knowledge, however; this clinical information is not always used in the care of patients. Imagine having the ability to take in all the information around a patient’s medical care — symptoms, findings, patient interviews and diagnostic studies. Then, imagine using Watson analytic capabilities to consider all of the prior cases, the state-of-the-art clinical knowledge in the medical literature and clinical best practices to help a physician advance a diagnosis and guide a course of treatment,” said Sam Nussbaum, M.D., WellPoint’s Chief Medical Officer. “We believe this will be an invaluable resource for our partnering physicians and will dramatically enhance the quality and effectiveness of medical care they deliver to our members.”

Watson may help physicians identify treatment options that balance the interactions of various drugs and narrow among a large group of treatment choices, enabling physicians to quickly select the more effective treatment plans for their patients. It is also expected to streamline communication between a patient’s physician and their health plan, helping to improve efficiency in clinical review of complex cases. It could even be used to direct patients to the physician in their area with the best success in treating a particular illness…

Watson is an artificial intelligence computer system capable of answering questions posed in natural language, developed in IBM‘s DeepQA project by a research team led by principal investigator David Ferrucci. Watson was named after IBM’s first president, Thomas J. Watson.

In 2011, as a test of its abilities, Watson competed on the quiz show Jeopardy!, in the show’s only human-versus-machine match-up to date. In a two-game, combined-point match, broadcast in three Jeopardy! episodes February 14–16, Watson beat Brad Rutter, the biggest all-time money winner on Jeopardy!, and Ken Jennings, the record holder for the longest championship streak (75 days). Watson received the first prize of $1 million, while Ken Jennings and Brad Rutter received $300,000 and $200,000, respectively. Jennings and Rutter pledged to donate half their winnings to charity, while IBM divided Watson’s winnings between two charities.

Watson consistently outperformed its human opponents on the game’s signaling device, but had trouble responding to a few categories, notably those having short clues containing only a few words. For each clue, Watson’s three most probable responses were displayed by the television screen. Watson had access to 200 million pages of structured and unstructured content consuming four terabytes of disk storage, including the full text of Wikipedia.Watson was not connected to the Internet during the game.

Watson is a question answering (QA) computing system built by IBM.IBM describes it as “an application of advanced Natural Language Processing, Information Retrieval, Knowledge Representation and Reasoning, and Machine Learning technologies to the field of open domain question answering” which is “built on IBM’s DeepQA technology for hypothesis generation, massive evidence gathering, analysis, and scoring.”

According to IBM:

Watson is a workload optimized system designed for complex analytics, made possible by integrating massively parallel POWER7 processors and the IBM DeepQA software to answer Jeopardy! questions in under three seconds. Watson is made up of a cluster of ninety IBM Power 750 servers (plus additional I/O, network and cluster controller nodes in 10 racks) with a total of 2880 POWER7 processor cores and 16 Terabytes of RAM.

Each Power 750 server uses a 3.5 GHz POWER7 eight core processor, with four threads per core. The POWER7 processor’s massively parallel processing capability is an ideal match for Watson’s IBM DeepQA software which is embarrassingly parallel (that is a workload that is easily split up into multiple parallel tasks).

According to John Rennie, Watson can process 500 gigabytes, the equivalent of a million books, per second. IBM’s master inventor and senior consultant Tony Pearson estimated 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. According to Rennie, the content was stored in Watson’s RAM for the game because data stored on hard drives are too slow to access

Watson’s software was written in both Java and C++ and uses Apache Hadoop framework for distributed computing, Apache UIMA (Unstructured Information Management Architecture) framework, IBM’s DeepQA software and SUSE Linux Enterprise Server 11 operating system. “[…] more than 100 different techniques are used to analyze natural language, identify sources, find and generate hypotheses, find and score evidence, and merge and rank hypotheses.”

The sources of information for Watson include encyclopedias, dictionaries, thesauri, newswire articles, and literary works. Watson also used databases, taxonomies, and ontologies. Specifically, DBPedia, WordNet, and Yago were used.

The IBM team provided Watson with millions of documents, including dictionaries, encyclopedias, and other reference material that it could use to build its knowledge. Although Watson was not connected to the Internet during the game, it contained 200 million pages of structured and unstructured content consuming four terabytes of disk storage, including the full text of Wikipedia.

Source:  Wiki


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