A survey of transfer learning

Journal of Big Data

Table 4 Heterogeneous transfer learning approaches surveyed in “Heterogeneous transfer learning” section listing various characteristics of each approach

Approach	Transfer category	Source data	Target data	Multiple sources	Generic solution
CLSCL [91]	Symmetric feature	Labeled	Unlabeled
HeMap [105]	Symmetric feature	Labeled	Limited labels		✓
DAMA [121]	Symmetric feature	Labeled	Limited labels	✓	✓
HTLIC [146]	Symmetric feature	Unlabeled	Abundant labels
TTI [92]	Symmetric feature	Labeled	Limited labels
HFA [30]	Symmetric feature	Labeled	Limited labels		✓
SHFA [64]	Symmetric feature	Labeled	Limited labels		✓
ARC-t [58]	Asymmetric feature	Labeled	Limited labels		✓
MOMAP [46]	Asymmetric feature	Labeled	Limited labels	✓
SHFR [145]	Asymmetric feature	Labeled	Limited labels		✓
HDP [77]	Asymmetric feature	Labeled	Unlabeled		✓
HHTL [144]	Asymmetric feature	Labeled	Unlabeled		✓