Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: H-FL: A Hierarchical Communication-Efficient and Privacy-Protected
  Architecture for Federated Learning   The longstanding goals of federated learning (FL) require rigorous privacy
guarantees and low communication overhead while holding a relatively high model
accuracy. However, simultaneously achieving all the goals is extremely
challenging. In this paper, we propose a novel framework called hierarchical
federated learning (H-FL) to tackle this challenge. Considering the degradation
of the model performance due to the statistic heterogeneity of the training
data, we devise a runtime distribution reconstruction strategy, which
reallocates the clients appropriately and utilizes mediators to rearrange the
local training of the clients. In addition, we design a compression-correction
mechanism incorporated into H-FL to reduce the communication overhead while not
sacrificing the model performance. To further provide privacy guarantees, we
introduce differential privacy while performing local training, which injects
moderate amount of noise into only part of the complete model. Experimental
results show that our H-FL framework achieves the state-of-art performance on
different datasets for the real-world image recognition tasks.

8
The categories of this paper are: hep-ex
14
The categories of this paper are: math-ph
26
The categories of this paper are: bayes-an
2
The categories of this paper are: math
17
The categories of this paper are: q-fin
24
The categories of this paper are: dg-ga
36
The categories of this paper are: cmp-lg
3
The categories of this paper are: physics
30
The categories of this paper are: q-alg
18
The categories of this paper are: econ
27
The categories of this paper are: comp-gas
20
The categories of this paper are: acc-phys
23
The categories of this paper are: solv-int
0
The categories of this paper are: hep-ph
19
The categories of this paper are: eess
32
The categories of this paper are: atom-ph