Title
Instance-Level Heterogeneous Domain Adaptation For Limited-Labeled Sketch-To-Photo Retrieval
Abstract
Although sketch-to-photo retrieval has a wide range of applications, it is costly to obtain paired and rich-labeled ground truth. Differently, photo retrieval data is easier to acquire. Therefore, previous works pre-train their models on rich-labeled photo retrieval data (i.e., source domain) and then fine-tune them on the limited-labeled sketch-to-photo retrieval data (i.e., target domain). However, without co-training source and target data, source domain knowledge might be forgotten during the fine-tuning process, while simply co-training them may cause negative transfer due to domain gaps. Moreover, identity label spaces of source data and target data are generally disjoint and therefore conventional category-level Domain Adaptation (DA) is not directly applicable. To address these issues, we propose an Instance-level Heterogeneous Domain Adaptation (IHDA) framework. We apply the fine-tuning strategy for identity label learning, aiming to transfer the instance-level knowledge in an inductive transfer manner. Meanwhile, labeled attributes from the source data are selected to form a shared label space for source and target domains. Guided by shared attributes, DA is utilized to bridge cross-dataset domain gaps and heterogeneous domain gaps, which transfers instance-level knowledge in a transductive transfer manner. Experiments show that our method has set a new state of the art on three sketch-to-photo image retrieval benchmarks without extra annotations, which opens the door to train more effective models on limited-labeled heterogeneous image retrieval tasks.
Year
DOI
Venue
2021
10.1109/TMM.2020.3009476
IEEE TRANSACTIONS ON MULTIMEDIA
Keywords
DocType
Volume
Task analysis, Training data, Data models, Image retrieval, Connectors, Training, Entropy, Domain adaptation, cross-modal image retrieval, sketch, person re-identification
Journal
23
ISSN
Citations 
PageRank 
1520-9210
0
0.34
References 
Authors
0
6
Name
Order
Citations
PageRank
Fan Yang119648.38
Yang Wu28418.42
Zheng Wang335236.33
Xiang Li434582.16
Sakriani Sakti525765.02
Satoshi Nakamura61099194.59