Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Universal Semi-Supervised Semantic Segmentation   In recent years, the need for semantic segmentation has arisen across several
different applications and environments. However, the expense and redundancy of
annotation often limits the quantity of labels available for training in any
domain, while deployment is easier if a single model works well across domains.
In this paper, we pose the novel problem of universal semi-supervised semantic
segmentation and propose a solution framework, to meet the dual needs of lower
annotation and deployment costs. In contrast to counterpoints such as fine
tuning, joint training or unsupervised domain adaptation, universal
semi-supervised segmentation ensures that across all domains: (i) a single
model is deployed, (ii) unlabeled data is used, (iii) performance is improved,
(iv) only a few labels are needed and (v) label spaces may differ. To address
this, we minimize supervised as well as within and cross-domain unsupervised
losses, introducing a novel feature alignment objective based on pixel-aware
entropy regularization for the latter. We demonstrate quantitative advantages
over other approaches on several combinations of segmentation datasets across
different geographies (Germany, England, India) and environments (outdoors,
indoors), as well as qualitative insights on the aligned representations.

24
The categories of this paper are: dg-ga
7
The categories of this paper are: hep-th
6
The categories of this paper are: astro-ph
15
The categories of this paper are: nucl-ex
37
The categories of this paper are: supr-con
0
The categories of this paper are: hep-ph
5
The categories of this paper are: gr-qc
14
The categories of this paper are: math-ph
19
The categories of this paper are: eess
21
The categories of this paper are: adap-org
36
The categories of this paper are: cmp-lg
22
The categories of this paper are: chao-dyn
8
The categories of this paper are: hep-ex
18
The categories of this paper are: econ
11
The categories of this paper are: hep-lat
34
The categories of this paper are: chem-ph