artificial intelligence: the theory and development of information systems able to perform tasks that normally require human intelligence
Turing test proposes a scenario in which a man and a computer both pretend to be women or men, and a human interviewer has to identify which is the real human. It tests a machines ability to exhibit intelligent behaviour
strong ai: hypothetical artificial intelligence that matches or exceeds human intelligence - the intelligence of a machine that could successfully perform any intellectual task that a human can
weak ai/narrow ai: performs a useful and specific function that once required human intelligence to perform, and does so at human levels or better
technological advancements have led to advancements in artificial intelligence:
advancements in chip technology
big data
internet and cloud computing
improved algorithm
first stage ai applications: consist mainly of recommendation systems
they learn vast amounts of data to personalize online content for each of us
second stage ai applications: analyze the data that traditional companies have collected and labelled in the past
third stage ai applications: analyze additional data from smart devices and sensors
these sensor enabled smart devices transform physical only entities into physical/digital entities
fourth stage ai applications: integrate the three stages and enable machines to sense and respond to the world around them
expert systems: computer systems that attempt to mimic human experts by applying expertise in a specific domain. it can either support decision makers or completely replace them
expert system problems:
transferring domain expertise from human experts to the expert system can be difficult because humans cannot always explain how they know what they know
automating the process may not be possible
potential liability
machine learning: the ability to accurately perform new, unseen tasks, built on known properties learned from training or historical data that are labelled
deep learning: subset of machine learning in which the system discovers new patterns without being exposed to labelled historical data or training data
neural networks: a set of virtual neurons or central processing units that work in parallel in an attempt to simulate the way the human brain works, in a simplified form
computer vision: the ability of information systems to identify objexts, scenes, and activities in images
natural language processing: the ability of information systems to work with text the way that humans do
speech recognition: focuses on automatically and accurately transcribing human speech
intelligent agent: a software program that assists you, or acts on your behalf, in performing repetitive computer related tasks
information agents: search for information and display it to users
buyer agents/shopping bot: helps customers find the products and services they need on a website
monitoring and surveillance agents/predictive agents: constantly observe and report on some item of interest
user agents/personal agents: take action on your behalf
what is ai?
a subfield of computer science that studies the thought process of humans, recreating effects of those processes through information systems
ai is the theory and development of technology that performs tasks that normally require human intelligence