Deep Reinforcement Learning for Network Provisioning in Elastic Optical Networks
Why this work is in the frame
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Bibliographic record
Abstract
We design an effective and scalable Deep Reinforcement Learning (DRL) approach for the Routing, Modulation and Spectrum Assignment (RMSA) problem in elastic optical networks. We use Convolutional Neural Networks (CNN) to embed the state and Deep Neural Networks (DNN) to learn the policy. We propose a novel state representation and reward function that interestingly guide the agent on assigning appropriate routes and spectrum by incorporating information on the spectrum utilisation and spectrum fragmentation. This gives the agent information about the consequence or cost of each action across the network, reducing the level of knowledge abstraction required for the agent. To show the effectiveness of the reward function and the importance of well-designed state representations, we have designed two state representations: the first with aggregation of spectrum occupancy information and the second without aggregation. The Proximal Policy Optimization (PPO) algorithm is investigated with an actor critic model where an entropy bonus is added to the loss function to ensure sufficient exploration. The proposed solution is compared with a greedy heuristic and a PPO with standard reward and state representation. Numerical results show that the proposed model provides very good solutions and works well on dataset instances with large topologies (up to 75 nodes). The proposed PPO outperformed the baseline algorithms by obtaining the largest throughput on all test instances. In addition, its spectrum usage has the lowest fragmentation.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it