Reinforcement Learning (RL) approaches to deal with finding an optimal reward based policy to act in an environment (Charla en Inglés)
However, what has led to their widespread use is its combination with deep neural networks (DNN) i.e., deep reinforcement learning (Deep RL). Recent successes on not only learning to play games but also superseding humans in it and academia-industry research collaborations like for manipulation of objects, locomotion skills, smart grids, etc. have surely demonstrated their case on a wide variety of challenging tasks.
With application spanning across games, robotics, dialogue, healthcare, marketing, energy and many more domains, Deep RL might just be the power that drives the next generation of Artificial Intelligence (AI) agents!
Deep Reinforcement Learning Talk at PI School. Covering following contents as:
1- Deep Reinforcement Learning
2- QLearning
3- Deep QLearning (DQN)
4- Google Deepmind Paper (DQN for ATARI)
Deep Reinforcement Learning and Its ApplicationsBill Liu
What is the most exciting AI news in recent years? AlphaGo!
What are key techniques for AlphaGo? Deep learning and reinforcement learning (RL)!
What are application areas for deep RL? A lot! In fact, besides games, deep RL has been making tremendous achievements in diverse areas like recommender systems and robotics.
In this talk, we will introduce deep reinforcement learning, present several applications, and discuss issues and potential solutions for successfully applying deep RL in real life scenarios.
https://www.aicamp.ai/event/eventdetails/W2021042818
Reinforcement Learning (RL) approaches to deal with finding an optimal reward based policy to act in an environment (Charla en Inglés)
However, what has led to their widespread use is its combination with deep neural networks (DNN) i.e., deep reinforcement learning (Deep RL). Recent successes on not only learning to play games but also superseding humans in it and academia-industry research collaborations like for manipulation of objects, locomotion skills, smart grids, etc. have surely demonstrated their case on a wide variety of challenging tasks.
With application spanning across games, robotics, dialogue, healthcare, marketing, energy and many more domains, Deep RL might just be the power that drives the next generation of Artificial Intelligence (AI) agents!
Deep Reinforcement Learning Talk at PI School. Covering following contents as:
1- Deep Reinforcement Learning
2- QLearning
3- Deep QLearning (DQN)
4- Google Deepmind Paper (DQN for ATARI)
Deep Reinforcement Learning and Its ApplicationsBill Liu
What is the most exciting AI news in recent years? AlphaGo!
What are key techniques for AlphaGo? Deep learning and reinforcement learning (RL)!
What are application areas for deep RL? A lot! In fact, besides games, deep RL has been making tremendous achievements in diverse areas like recommender systems and robotics.
In this talk, we will introduce deep reinforcement learning, present several applications, and discuss issues and potential solutions for successfully applying deep RL in real life scenarios.
https://www.aicamp.ai/event/eventdetails/W2021042818
This presentation contains an introduction to reinforcement learning, comparison with others learning ways, introduction to Q-Learning and some applications of reinforcement learning in video games.
Reinforcement learning is an area of machine learning inspired by behaviorist psychology, concerned with how software agents ought to take actions in an environment so as to maximize some notion of cumulative reward.
YouTube: https://youtu.be/LzaWrmKL1Z4
** Python Data Science Training: https://www.edureka.co/python **
In this PPT on “Reinforcement Learning Tutorial” you will get an in-depth understanding about how reinforcement learning is used in the real world. I’ll be covering the following topics in this session:
Introduction to Machine Learning
What is Reinforcement Learning?
Reinforcement Learning with an analogy
Reinforcement Learning process
Reinforcement Learning Counter-Strike example
Reinforcement Learning Definitions
Reinforcement Learning Concepts
Markov’s Decision Process
Understanding Q-Learning
Demo
Check out our Python Training Playlist: https://goo.gl/Na1p9G
Follow us to never miss an update in the future.
YouTube: https://www.youtube.com/user/edurekaIN
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The lecture slides in DSAI 2018, National Cheng Kung University. It's about famous deep reinforcement learning algorithm: Actor-Critc. In this slides, we introduce advantage function, A3C/A2C.
Hello~! :)
While studying the Sutton-Barto book, the traditional textbook for Reinforcement Learning, I created PPT about the Multi-armed Bandits, a Chapter 2.
If there are any mistakes, I would appreciate your feedback immediately.
Thank you.
Lecture slides in DASI spring 2018, National Cheng Kung University, Taiwan. The content is about deep reinforcement learning: policy gradient including variance reduction and importance sampling
Slides from my presentation of Richard Sutton and Andrew Barto's "Introduction to Reinforcement Learning Chapter 1"
Video (https://www.youtube.com/watch?v=4SLGEq_HZxk&t=2s)
발표자: 곽동현(서울대 박사과정, 현 NAVER Clova)
강화학습(Reinforcement learning)의 개요 및 최근 Deep learning 기반의 RL 트렌드를 소개합니다.
발표영상:
http://tv.naver.com/v/2024376
https://youtu.be/dw0sHzE1oAc
Deep Reinforcement Learning: Q-LearningKai-Wen Zhao
This slide reviews deep reinforcement learning, specially Q-Learning and its variants. We introduce Bellman operator and approximate it with deep neural network. Last but not least, we review the classical paper: DeepMind Atari Game beats human performance. Also, some tips of stabilizing DQN are included.
This slide described about Deep sarsa, Deep Q-learning, and DQN, and used for Reinforcement Learning study group's lecture, where is belonged to Korea Artificial Intelligence Laboratory.
TensorFlow and Deep Learning Tips and TricksBen Ball
Presented at https://www.meetup.com/TensorFlow-and-Deep-Learning-Singapore/events/241183195/ . Tips and Tricks for using Tensorflow with Deep Reinforcement Learning.
See our blog for more information at http://prediction-machines.com/blog/
This presentation contains an introduction to reinforcement learning, comparison with others learning ways, introduction to Q-Learning and some applications of reinforcement learning in video games.
Reinforcement learning is an area of machine learning inspired by behaviorist psychology, concerned with how software agents ought to take actions in an environment so as to maximize some notion of cumulative reward.
YouTube: https://youtu.be/LzaWrmKL1Z4
** Python Data Science Training: https://www.edureka.co/python **
In this PPT on “Reinforcement Learning Tutorial” you will get an in-depth understanding about how reinforcement learning is used in the real world. I’ll be covering the following topics in this session:
Introduction to Machine Learning
What is Reinforcement Learning?
Reinforcement Learning with an analogy
Reinforcement Learning process
Reinforcement Learning Counter-Strike example
Reinforcement Learning Definitions
Reinforcement Learning Concepts
Markov’s Decision Process
Understanding Q-Learning
Demo
Check out our Python Training Playlist: https://goo.gl/Na1p9G
Follow us to never miss an update in the future.
YouTube: https://www.youtube.com/user/edurekaIN
Instagram: https://www.instagram.com/edureka_learning/
Facebook: https://www.facebook.com/edurekaIN/
Twitter: https://twitter.com/edurekain
LinkedIn: https://www.linkedin.com/company/edureka
The lecture slides in DSAI 2018, National Cheng Kung University. It's about famous deep reinforcement learning algorithm: Actor-Critc. In this slides, we introduce advantage function, A3C/A2C.
Hello~! :)
While studying the Sutton-Barto book, the traditional textbook for Reinforcement Learning, I created PPT about the Multi-armed Bandits, a Chapter 2.
If there are any mistakes, I would appreciate your feedback immediately.
Thank you.
Lecture slides in DASI spring 2018, National Cheng Kung University, Taiwan. The content is about deep reinforcement learning: policy gradient including variance reduction and importance sampling
Slides from my presentation of Richard Sutton and Andrew Barto's "Introduction to Reinforcement Learning Chapter 1"
Video (https://www.youtube.com/watch?v=4SLGEq_HZxk&t=2s)
발표자: 곽동현(서울대 박사과정, 현 NAVER Clova)
강화학습(Reinforcement learning)의 개요 및 최근 Deep learning 기반의 RL 트렌드를 소개합니다.
발표영상:
http://tv.naver.com/v/2024376
https://youtu.be/dw0sHzE1oAc
Deep Reinforcement Learning: Q-LearningKai-Wen Zhao
This slide reviews deep reinforcement learning, specially Q-Learning and its variants. We introduce Bellman operator and approximate it with deep neural network. Last but not least, we review the classical paper: DeepMind Atari Game beats human performance. Also, some tips of stabilizing DQN are included.
This slide described about Deep sarsa, Deep Q-learning, and DQN, and used for Reinforcement Learning study group's lecture, where is belonged to Korea Artificial Intelligence Laboratory.
TensorFlow and Deep Learning Tips and TricksBen Ball
Presented at https://www.meetup.com/TensorFlow-and-Deep-Learning-Singapore/events/241183195/ . Tips and Tricks for using Tensorflow with Deep Reinforcement Learning.
See our blog for more information at http://prediction-machines.com/blog/
We present the first deep learning model to successfully learn control policies directly from high-dimensional sensory input using reinforcement learning. The model is a convolutional neural network, trained with a variant of Q-learning, whose input is raw pixels and whose output is a value function estimating future rewards. WeapplyourmethodtosevenAtari2600gamesfromtheArcadeLearningEnvironment,withnoadjustmentofthearchitectureorlearningalgorithm. We findthat itoutperforms all previous approachesonsix ofthe games and surpasses a human expert on three of them.
It will give a short overview of Reinforcement Learning and its combination with Neural Networks (Deep Reinforcement Learning) in a brief and simple way
Matineh Shaker, Artificial Intelligence Scientist, Bonsai at MLconf SF 2017MLconf
Deep Reinforcement Learning with Shallow Trees:
In this talk, I present Concept Network Reinforcement Learning (CNRL), developed at Bonsai. It is an industrially applicable approach to solving complex tasks using reinforcement learning, which facilitates problem decomposition, allows component reuse, and simplifies reward functions. Inspired by Sutton’s options framework, we introduce the notion of “Concept Networks” which are tree-like structures in which leaves are “sub-concepts” (sub-tasks), representing policies on a subset of state space. The parent (non-leaf) nodes are “Selectors”, containing policies on which sub-concept to choose from the child nodes, at each time during an episode. There will be a high-level overview on the reinforcement learning fundamentals at the beginning of the talk.
Bio: Matineh Shaker is an Artificial Intelligence Scientist at Bonsai in Berkeley, CA, where she builds machine learning, reinforcement learning, and deep learning tools and algorithms for general purpose intelligent systems. She was previously a Machine Learning Researcher at Geometric Intelligence, Data Science Fellow at Insight Data Science, Predoctoral Fellow at Harvard Medical School. She received her PhD from Northeastern University with a dissertation in geometry-inspired manifold learning.
Multi objective optimization and Benchmark functions resultPiyush Agarwal
Implemented Strength Pareto Evolutionary Algorithm (SPEA 2) and Non Dominated Sorting Genetic Algorithm (NSGA II) in MATLAB, Guide Assistant Prof. Divy Kumar, MNNIT Allahabad.
The two algorithms are use to solve multiobjective functions. Tested the algorithms on all the benchmark functions.
Applied both the algorithms to solve Portfolio Optimization satisfying different types of constraints to derive the optimal portfolio.
Financial Trading as a Game: A Deep Reinforcement Learning Approach謙益 黃
An automatic program that generates constant profit from the financial market is lucrative for every market practitioner. Recent advance in deep reinforcement learning provides a framework toward end-to-end training of such trading agent. In this paper, we propose an Markov Decision Process (MDP) model suitable for the financial trading task and solve it with the state-of-the-art deep recurrent Q-network (DRQN) algorithm. We propose several modifications to the existing learning algorithm to make it more suitable under the financial trading setting, namely 1. We employ a substantially small replay memory (only a few hundreds in size) compared to ones used in modern deep reinforcement learning algorithms (often millions in size.) 2. We develop an action augmentation technique to mitigate the need for random exploration by providing extra feedback signals for all actions to the agent. This enables us to use greedy policy over the course of learning and shows strong empirical performance compared to more commonly used ε-greedy exploration. However, this technique is specific to financial trading under a few market assumptions. 3. We sample a longer sequence for recurrent neural network training. A side product of this mechanism is that we can now train the agent for every T steps. This greatly reduces training time since the overall computation is down by a factor of T. We combine all of the above into a complete online learning algorithm and validate our approach on the spot foreign exchange market.
Short walk-through on building learning agents.
Reinforcement learning covers a family of algorithms with the purpose of maximize a cumulative reward that an agent can obtain from an environment.
It seems like training crows to collect cigarette butts in exchange for peanuts, or paraphrasing an old say, the carrot and stick metaphor for cold algorithms instead of living donkeys.
See more on https://gfrison.com
Jay Yagnik at AI Frontiers : A History Lesson on AIAI Frontiers
We have reached a remarkable point in history with the evolution of AI, from applying this technology to incredible use cases in healthcare, to addressing the world's biggest humanitarian and environmental issues. Our ability to learn task-specific functions for vision, language, sequence and control tasks is getting better at a rapid pace. This talk will survey some of the current advances in AI, compare AI to other fields that have historically developed over time, and calibrate where we are in the relative advancement timeline. We will also speculate about the next inflection points and capabilities that AI can offer down the road, and look at how those might intersect with other emergent fields, e.g. Quantum computing.
Presentato al sesto WebMeetup del Machine Learning / Data Science Meetup Roma: https://www.meetup.com/it-IT/Machine-Learning-Data-Science-Meetup/events/273089965/
Presentazione per il sesto WebMeetup del Machine Learning / Data Science Meetup Roma: https://www.meetup.com/it-IT/Machine-Learning-Data-Science-Meetup/events/273089965/
Paolo Galeone - Dissecting tf.function to discover auto graph strengths and s...MeetupDataScienceRoma
Original presentation available on GitHub: https://pgaleone.eu/tf-function-talk/
Meetup: https://www.meetup.com/it-IT/Machine-Learning-Data-Science-Meetup/events/264338606/
Multimodal AI Approach to Provide Assistive Services (Francesco Puja)MeetupDataScienceRoma
Presentazione dal Meetup del Machine Learning / Data Science Meetup di Roma - Giugno 2019:
https://www.meetup.com/it-IT/Machine-Learning-Data-Science-Meetup/events/262120815/
Presentazione dal Meetup del Machine Learning / Data Science Meetup di Roma - Giugno 2019:
https://www.meetup.com/it-IT/Machine-Learning-Data-Science-Meetup/events/262120815/
Zero, One, Many - Machine Learning in Produzione (Luca Palmieri)MeetupDataScienceRoma
Talk dal Meetup del Machine Learning / Data Science Meetup di Roma - Giugno 2019:
https://www.meetup.com/it-IT/Machine-Learning-Data-Science-Meetup/events/262120815/
Adjusting primitives for graph : SHORT REPORT / NOTESSubhajit Sahu
Graph algorithms, like PageRank Compressed Sparse Row (CSR) is an adjacency-list based graph representation that is
Multiply with different modes (map)
1. Performance of sequential execution based vs OpenMP based vector multiply.
2. Comparing various launch configs for CUDA based vector multiply.
Sum with different storage types (reduce)
1. Performance of vector element sum using float vs bfloat16 as the storage type.
Sum with different modes (reduce)
1. Performance of sequential execution based vs OpenMP based vector element sum.
2. Performance of memcpy vs in-place based CUDA based vector element sum.
3. Comparing various launch configs for CUDA based vector element sum (memcpy).
4. Comparing various launch configs for CUDA based vector element sum (in-place).
Sum with in-place strategies of CUDA mode (reduce)
1. Comparing various launch configs for CUDA based vector element sum (in-place).
16. Expectedfuturerewards
Any goal can be represented as a sum of intermediate rewards.
[ ∣ ] = [ + γ + + … ∣ ]∑
∞
t=0
γ
t
Rt St R0 R1 γ
2
R2 St
15
17. Tools
1. Policy:
2. Value function:
3. Model:
We have to pick at least 1 of the 3.
π(a|s)
Q(s, a)
(P, R)
16
18. Policy
A policy de nes how the agent behaves.
It takes as input a state and output an action.
It can be stochastic, or deterministic.
17
19. Valuefunction
A value function estimates how much reward the agent can achieve.
It takes as input a (state,action), and output values.
One for each possible action.
18
20. Model
A model is the Agent representation of the environment.
Takes as input a state and output (next_state,reward).
19
24. Repeat
1. Prediction: Compute the value of the expected reward from until the
terminal state.
2. Control: Act greedly with respect to the predicted values.
st
23
28. Updaterule
In rabbits, humans and machines we get the same algorithm:
while True:
Q[t] = Q[t-1] + alpha * (Q_target - Q[t-1])
27
29. Q-Learning[Watkins,1989]
The agent does not have a model of the environment.
Perform actions following a standard policy.
Predict using the target policy.
Which makes it an "o -policy", model-free method.
28
30. Lossfunction
Building on what we learn from the rabbit.
The learning goal is to minimize the following loss function:
Putting all together we get...
Q_target = r + gamma * np.argmax( Q(s, A))
Loss = 1/n * np.sum( (Q_target - Q(s,a))^2)
29
35. DeepMindideas
1. Di erent neural networks for Q and Q_target
2. Estimate Q_target using past experiences
3. Update Q_target every C steps
4. Clip rewards between -1 and 1
34
36. Network
Input: an image of shape [None, 42, 42, 4]
4 Conv2D 32 lters, 4x4 kernel
1 Hidden layer of size 256
1 Fully connected layer of size action_size
35