際際滷

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Machine
learning
1
Agenda
 Motivation behind ML
 Concept of the ML
 Technique of the ML
2
Motivation
 Whats Machine learning ?
 Where using Machine learning ?
 The future of Machine learning ?
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Part 1 : Concept of the ML
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Concept
 Sequential logic and Machine learning
 Types of Algorithms
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5
Sequential logic and Machine learning
Sequential logic Machine learning
Input
Output
label
Model
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6
Type of learning
 Supervised
 Unsupervised
 Reinforced
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7
Supervised
 Input data are already labeled
 Model train by iterating
 Commun exemples :
1) Regression (predicting value)
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8
2) Classification (predicting Label)
Supervised
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9
Unsupervised
 Input data are not labeled
 Model deducer structures
 Commun exemples :
1) Clustering
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Unsupervised
2) Dimensionality Reduction
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Reinforcement
 Learn by using a reward function
 Commun exemples :
1) Games
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Part 2 : Technique of the ML
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Technique
 The machine learning process
 Real example
 Share tools for you
 Touch and play with some tools (Practical)
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Get Data
 Need lots of data
 Lots of excellent ones are online
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Clean , prepare data
 Convert into appropriate format (using python)
 Label the data
 Distort data to generalize you model
 Make a good model first to avoid problems
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Train model
 Very computationally expensive(GPU,CPU,TPU)
 Only experts can configure from scratch (using cloud)
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Testing
 Typically saving some train data for testing
 Test for worst state for highest purpose
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Improve
 Iterative and increase accuracy
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Real example
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Google Translate
Tools for you
 Programming languages : R , Python (recommended )
 Platform : Any typing editor
 Framework : Tenserflow lib
 Clouds : floydhub (free to test) Google cloud , amazon or azure (train model)
 Maths : Linear algebra , Calculus , probability and statistic
 Library and Competition : https://www.kaggle.com/
 Lecture (courses) : Coursera , Udacity
 Books : building machine learning systems with python (for beginners)
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Bye
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