Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: LabOR: Labeling Only if Required for Domain Adaptive Semantic
  Segmentation   Unsupervised Domain Adaptation (UDA) for semantic segmentation has been
actively studied to mitigate the domain gap between label-rich source data and
unlabeled target data. Despite these efforts, UDA still has a long way to go to
reach the fully supervised performance. To this end, we propose a Labeling Only
if Required strategy, LabOR, where we introduce a human-in-the-loop approach to
adaptively give scarce labels to points that a UDA model is uncertain about. In
order to find the uncertain points, we generate an inconsistency mask using the
proposed adaptive pixel selector and we label these segment-based regions to
achieve near supervised performance with only a small fraction (about 2.2%)
ground truth points, which we call "Segment based Pixel-Labeling (SPL)". To
further reduce the efforts of the human annotator, we also propose "Point-based
Pixel-Labeling (PPL)", which finds the most representative points for labeling
within the generated inconsistency mask. This reduces efforts from 2.2% segment
label to 40 points label while minimizing performance degradation. Through
extensive experimentation, we show the advantages of this new framework for
domain adaptive semantic segmentation while minimizing human labor costs.

18
The categories of this paper are: econ
20
The categories of this paper are: acc-phys
30
The categories of this paper are: q-alg
4
The categories of this paper are: cond-mat
34
The categories of this paper are: chem-ph
8
The categories of this paper are: hep-ex
16
The categories of this paper are: stat
0
The categories of this paper are: hep-ph
11
The categories of this paper are: hep-lat
9
The categories of this paper are: nlin
2
The categories of this paper are: math
25
The categories of this paper are: patt-sol
15
The categories of this paper are: nucl-ex
29
The categories of this paper are: funct-an
12
The categories of this paper are: nucl-th
5
The categories of this paper are: gr-qc