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Technical side of Watson, David Boloker by Mind Map: Technical side of Watson, David Boloker
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Technical side of Watson, David Boloker

Motivation

Offload more of the decision maker tasks to the engine

Strategy

read lots of texts

analyze subject-verb-object

build semantic network

find patterns

Keywords match isn't enough

need

Arch

decompose the question

run many many searches

generate hypothesis

evidence sourcing

deep evidence scoring

sythesis

apply machine learning model to get final confidence

output answer & confidence

Had iterations in architecture, each time improving accuracy

till they got 87%

HW

2890 cores

90 severs

16TB RAM

20TB disk

Challenges

Real language is full of slang, & metaphores

History

PIQUANT

OpenEuphyra

uses UIMA for SOA

100 annotators

reveal different kind of features

arch high-level

learn

Question analysis

Primary search

Shallow & deep scoring

Merging & ranking

Demo

Audience question

Demo machine uses only 7 servers

About

CTO, Emerging Technologies, IBM