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rlm@436
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1 Here I demonstrate the power of using embodied artificial intelligence
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rlm@436
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2 to attack the /action recognition/ problem, which is the challenge of
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rlm@436
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3 recognizing actions performed by a creature given limited data about
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rlm@437
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4 the creature's actions, such as a video recording. I solve this
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rlm@437
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5 problem in the case of a worm-like creature performing actions such as
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rlm@524
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6 curling and wiggling.
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rlm@432
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7
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rlm@436
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8 To attack the action recognition problem, I developed a computational
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rlm@441
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9 model of empathy (=EMPATH=) which allows me to recognize actions using
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rlm@441
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10 simple, embodied representations of actions (which require rich
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rlm@524
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11 sensory data), even when that sensory data is not actually available.
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rlm@524
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12 The missing sense data is ``imagined'' by the system by combining
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rlm@524
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13 previous experiences gained from unsupervised free play. The worm is a
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rlm@524
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14 five-segment creature equipped with touch, proprioception, and muscle
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rlm@524
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15 tension senses. It recognizes actions using only proprioception data.
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rlm@432
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16
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rlm@436
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17 In order to build this empathic, action-recognizing system, I created
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rlm@436
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18 a program called =CORTEX=, which is a complete platform for embodied
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rlm@436
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19 AI research. It provides multiple senses for simulated creatures,
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rlm@524
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20 including vision, touch, proprioception, muscle tension, and hearing.
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rlm@524
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21 Each of these senses provides a wealth of parameters that are
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rlm@436
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22 biologically inspired. =CORTEX= is able to simulate any number of
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rlm@436
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23 creatures and senses, and provides facilities for easily modeling and
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rlm@436
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24 creating new creatures. As a research platform it is more complete
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rlm@436
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25 than any other system currently available.
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