Introduction to Artifical Intelligence Jitendra Malik U.C. Berkeley Jitendra Malik U.C. Berkeley.
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Transcript of Introduction to Artifical Intelligence Jitendra Malik U.C. Berkeley Jitendra Malik U.C. Berkeley.
Introduction to Artifical Intelligence
Introduction to Artifical Intelligence
Jitendra Malik
U.C. Berkeley
Jitendra Malik
U.C. Berkeley
BRAINBRAIN
Imaging the BrainImaging the Brain
Some facts…Some facts…
• 100 Billion neurons
• On average, connected to 1 K others
• Neurons are slow. Firing rates < 100 Hz.
• Can be classified into– Sensory – Motor– Central
• 100 Billion neurons
• On average, connected to 1 K others
• Neurons are slow. Firing rates < 100 Hz.
• Can be classified into– Sensory – Motor– Central
Sensory SystemsSensory Systems
• Vision (nearly 30-50% )
• Audition (nearly 10%)
• Somatic
• Chemical– Taste– Olfaction
• Vision (nearly 30-50% )
• Audition (nearly 10%)
• Somatic
• Chemical– Taste– Olfaction
Motor SystemsMotor Systems
• Locomotion
• Manipulation
• Speech
• Locomotion
• Manipulation
• Speech
Central SystemsCentral Systems
• Reasoning and problem solving
• Language
• ……..
• Reasoning and problem solving
• Language
• ……..
NEURONNEURON
Trends in biological and machine brain evolution
Trends in biological and machine brain evolution
Hans Moravec: ROBOTHans Moravec: ROBOT
Moravec’s argumentMoravec’s argument
• 1 neuron = 1000 instructions/sec• 1 synapse = 1 byte of information• Human brain then processes 10^14 IPS and
has 10^14 bytes of storage• In 2000, we have 10^9 IPS and 10^9 bytes
on a desktop machine• In 25 years, assuming Moore’s law we
obtain human level computing power
• 1 neuron = 1000 instructions/sec• 1 synapse = 1 byte of information• Human brain then processes 10^14 IPS and
has 10^14 bytes of storage• In 2000, we have 10^9 IPS and 10^9 bytes
on a desktop machine• In 25 years, assuming Moore’s law we
obtain human level computing power
How Intelligence could have begun…
How Intelligence could have begun…
• V. Braitenberg: Vehicles, Experiments in Synthetic Psychology
• V. Braitenberg: Vehicles, Experiments in Synthetic Psychology
Agents and EnvironmentsAgents and Environments
Reflex agent with stateReflex agent with state
Goal-oriented agentGoal-oriented agent
Utility-based agentUtility-based agent