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Transcript of Machine Learning
Computers can unconsciously evolve programs to do things that no human could consciously program......
In machine learning, information processors perform tasks of sorting,assembling,assimilating and classifying information.
Even though we programmed these algorithms,what actually happens when it unfolds live,we don't control any more.
Arthur Samuel (1959) :
Machine Learning: Field of study that gives computers the ability to
learn without being explicitly programmed.
Machine Learning and Quantum Algorithms
Tom Mitchell (1998) :
Well-posed Learning Problem: A computer program is said to
learn from experience E
with respect to some task T and
some performance measure P
, if its performance on T, as measured by P, improves with experience E.
Quantum Machine Learning
Take time logarithmic in the number of vectors, an exponential speed-up over classical algorithms ( polynomial time ).
Quantum machine learning allows enhanced privacy
Quantum Computing & Quantum computer
Quantum machine learning is about manipulating and classifying large amounts of data that is presented in arrays(rectors) and arrays of arrays(tensor products)
Quantum computers are good at manipulating vectors and tensor products in high-dimensional spaces.
The paper provides supervised and unsupervised quantum machine learning algorithms for cluster assignment and cluster finding.
Take time logarithmic in the number of dimensions, an exponential speed-up over classical algorithms ( polynomial time).
Estimating metrics between vectors in N-dimensional vector spaces
Assigning N-dimensional vectors to one of several clusters of M states
Only O(log(MN)) quantum data-base states are required to perform cluster assignment, while O(MN) are required to uncover the actual data.
The data-base user can still obtain information about the desired patterns, while the data-base owner is assured that the user has only accessed an exponentially small fraction of the data base.