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Open AccessProceedings Article

QMIX: Monotonic Value Function Factorisation for Deep Multi-Agent Reinforcement Learning

TLDR
QMIX employs a network that estimates joint action-values as a complex non-linear combination of per-agent values that condition only on local observations, and structurally enforce that the joint-action value is monotonic in the per- agent values, which allows tractable maximisation of the jointaction-value in off-policy learning.
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This article is published in International Conference on Machine Learning.The article was published on 2018-07-03 and is currently open access. It has received 505 citations till now. The article focuses on the topics: Reinforcement learning & Monotonic function.

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Citations
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QPLEX: Duplex Dueling Multi-Agent Q-Learning

TL;DR: In this paper, a duplex dueling structure encodes the individual-global-max (IGM) principle into the neural network architecture and thus enables efficient value function learning, which significantly outperforms state-of-the-art baselines.
Journal Article

Revisiting Parameter Sharing in Multi-Agent Deep Reinforcement Learning

TL;DR: It is shown that increasing centralization during learning arbitrarily mitigates the slowing of convergence due to nonstationarity and gives a formal proof of a set of methods that allow parameter sharing to serve in environments with heterogeneous agents.
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Multiple Landmark Detection using Multi-Agent Reinforcement Learning

TL;DR: A new detection approach for multiple landmarks based on multi-agent reinforcement learning based on the hypothesis that the position of all anatomical landmarks is interdependent and non-random within the human anatomy, thus finding one landmark can help to deduce the location of others.
Posted Content

Weighted QMIX: Expanding Monotonic Value Function Factorisation.

TL;DR: This work proposes two weighting schemes and proves that they recover the correct maximal action for any joint action $Q$-values, and therefore for $Q^*$ as well.
Proceedings Article

Modelling the Dynamic Joint Policy of Teammates with Attention Multi-agent DDPG

TL;DR: Attention Multi-Agent Deep Deterministic Policy Gradient (ATT-MADDPG) as mentioned in this paper extends DDPG with an attention mechanism to explicitly model the dynamic joint policy of teammates in an adaptive manner.
References
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Long short-term memory

TL;DR: A novel, efficient, gradient based method called long short-term memory (LSTM) is introduced, which can learn to bridge minimal time lags in excess of 1000 discrete-time steps by enforcing constant error flow through constant error carousels within special units.
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Human-level control through deep reinforcement learning

TL;DR: This work bridges the divide between high-dimensional sensory inputs and actions, resulting in the first artificial agent that is capable of learning to excel at a diverse array of challenging tasks.
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Empirical evaluation of gated recurrent neural networks on sequence modeling

TL;DR: These advanced recurrent units that implement a gating mechanism, such as a long short-term memory (LSTM) unit and a recently proposed gated recurrent unit (GRU), are found to be comparable to LSTM.

Deep reinforcement learning with double Q-learning

TL;DR: In this article, the authors show that the DQN algorithm suffers from substantial overestimation in some games in the Atari 2600 domain, and they propose a specific adaptation to the algorithm and show that this algorithm not only reduces the observed overestimations, but also leads to much better performance on several games.
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Learning from delayed rewards

TL;DR: The invention relates to a circuit for use in a receiver which can receive two-tone/stereo signals which is intended to make a choice between mono or stereo reproduction of signal A or of signal B and vice versa.
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