Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Multi-Source Domain Adaptation Based on Federated Knowledge Alignment   Federated Learning (FL) facilitates distributed model learning to protect
users' privacy. In the absence of labels for a new user's data, the knowledge
transfer in FL allows a learned global model to adapt to the new samples
quickly. The multi-source domain adaptation in FL aims to improve the model's
generality in a target domain by learning domain-invariant features from
different clients. In this paper, we propose Federated Knowledge Alignment
(FedKA) that aligns features from different clients and those of the target
task. We identify two types of negative transfer arising in multi-source domain
adaptation of FL and demonstrate how FedKA can alleviate such negative
transfers with the help of a global features disentangler enhanced by embedding
matching. To further facilitate representation learning of the target task, we
devise a federated voting mechanism to provide labels for samples from the
target domain via a consensus from querying local models and fine-tune the
global model with these labeled samples. Extensive experiments, including an
ablation study, on an image classification task of Digit-Five and a text
sentiment classification task of Amazon Review, show that FedKA could be
augmented to existing FL algorithms to improve the generality of the learned
model for tackling a new task.

26
The categories of this paper are: bayes-an
36
The categories of this paper are: cmp-lg
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The categories of this paper are: adap-org
13
The categories of this paper are: quant-ph
14
The categories of this paper are: math-ph
15
The categories of this paper are: nucl-ex
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The categories of this paper are: patt-sol
12
The categories of this paper are: nucl-th
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The categories of this paper are: solv-int
7
The categories of this paper are: hep-th
22
The categories of this paper are: chao-dyn
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The categories of this paper are: supr-con
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The categories of this paper are: funct-an
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The categories of this paper are: hep-ph
3
The categories of this paper are: physics
5
The categories of this paper are: gr-qc