default search action
Shuai Zhao 0001
Person information
- affiliation (PhD 2014): Beijing University of Posts and Telecommunications, State Key Laboratory of Networking and Switching Technology, China
Other persons with the same name
- Shuai Zhao — disambiguation page
- Shuai Zhao 0002 — MediaTek, San Jose, CA, USA (and 1 more)
- Shuai Zhao 0003 — Aalborg University, Department of Energy Technology, Denmark (and 2 more)
- Shuai Zhao 0004 — Sun Yat-sen University, China (and 1 more)
- Shuai Zhao 0005 — Tsinghua University, State Key Laboratory of Precision Measurement Technology and Instrument, Department of Precision Instrument, Beijing, China
- Shuai Zhao 0006 — Zhejiang University, College of Computer Science, Hangzhou, China
Refine list
refinements active!
zoomed in on ?? of ?? records
view refined list in
export refined list as
2020 – today
- 2024
- [j43]Jieqian Zhou, Shuai Zhao, Shengjie Li, Bo Cheng, Junliang Chen:
Research on Person Re-Identification through Local and Global Attention Mechanisms and Combination Poolings. Sensors 24(17): 5638 (2024) - [j42]Xu Wang, Hainan Zhang, Shuai Zhao, Hongshen Chen, Zhuoye Ding, Zhiguo Wan, Bo Cheng, Yanyan Lan:
Debiasing Counterfactual Context With Causal Inference for Multi-Turn Dialogue Reasoning. IEEE ACM Trans. Audio Speech Lang. Process. 32: 1125-1132 (2024) - 2023
- [j41]Ruiqiang Liu, Yuheng Kan, Shuai Zhao, Bo Cheng, Zian Ma, Wei Wu:
Turning traffic volume imputation for persistent missing patterns with GNNs. Appl. Intell. 53(1): 491-508 (2023) - [j40]Xu Wang, Hainan Zhang, Shuai Zhao, Hongshen Chen, Bo Cheng, Zhuoye Ding, Sulong Xu, Weipeng Yan, Yanyan Lan:
HiBERT: Detecting the illogical patterns with hierarchical BERT for multi-turn dialogue reasoning. Neurocomputing 524: 167-177 (2023) - [j39]Yi Liang, Shuai Zhao, Bo Cheng, Hao Yang:
TransAM: Transformer appending matcher for few-shot knowledge graph completion. Neurocomputing 537: 61-72 (2023) - [j38]Shengjie Li, Shuai Zhao, Bo Cheng, Junliang Chen:
Part-Aware Framework for Robust Object Tracking. IEEE Trans. Image Process. 32: 750-763 (2023) - [j37]Shuai Zhao, Daxing Zhao, Ruiqiang Liu, Zhen Xia, Bo Cheng, Junliang Chen:
GMAT-DU: Traffic Anomaly Prediction With Fine Spatiotemporal Granularity in Sparse Data. IEEE Trans. Intell. Transp. Syst. 24(11): 13503-13517 (2023) - [j36]Shuai Zhao, Ruiqiang Liu, Bo Cheng, Daxing Zhao:
Classification-Labeled Continuousization and Multi-Domain Spatio-Temporal Fusion for Fine-Grained Urban Crime Prediction. IEEE Trans. Knowl. Data Eng. 35(7): 6725-6738 (2023) - [j35]Shoulu Hou, Wei Ni, Kailan Zhao, Bo Cheng, Shuai Zhao, Zhiguo Wan, Xiulei Liu, Shiping Chen:
Fine-Grained Online Energy Management of Edge Data Centers Using Per-Core Power Gating and Dynamic Voltage and Frequency Scaling. IEEE Trans. Sustain. Comput. 8(3): 522-536 (2023) - [c37]Yingting Li, Ambuj Mehrish, Rishabh Bhardwaj, Navonil Majumder, Bo Cheng, Shuai Zhao, Amir Zadeh, Rada Mihalcea, Soujanya Poria:
Evaluating Parameter-Efficient Transfer Learning Approaches on SURE Benchmark for Speech Understanding. ICASSP 2023: 1-5 - [c36]Yi Liang, Shuai Zhao, Bo Cheng, Hao Yang:
Twin Graph Attention Network with Evolution Pattern Learner for Few-Shot Temporal Knowledge Graph Completion. KSEM (1) 2023: 234-246 - [i6]Yingting Li, Ambuj Mehrish, Shuai Zhao, Rishabh Bhardwaj, Amir Zadeh, Navonil Majumder, Rada Mihalcea, Soujanya Poria:
Evaluating Parameter-Efficient Transfer Learning Approaches on SURE Benchmark for Speech Understanding. CoRR abs/2303.03267 (2023) - 2022
- [j34]Xu Wang, Shuai Zhao, Bo Cheng, Yuwei Yin, Hao Yang:
Explore Modeling Relation Information and Direction Information in KBQA. Neurocomputing 471: 139-148 (2022) - [j33]Shengjie Li, Shuai Zhao, Bo Cheng, Junliang Chen:
Dynamic Particle Filter Framework for Robust Object Tracking. IEEE Trans. Circuits Syst. Video Technol. 32(6): 3735-3748 (2022) - [j32]Shengjie Li, Shuai Zhao, Bo Cheng, Junliang Chen:
Noise-Aware Framework for Robust Visual Tracking. IEEE Trans. Cybern. 52(2): 1179-1192 (2022) - [c35]Yi Liang, Shuai Zhao, Bo Cheng, Yuwei Yin, Hao Yang:
Exploring Entity Interactions for Few-Shot Relation Learning (Student Abstract). AAAI 2022: 13003-13004 - [c34]Jiale Han, Shuai Zhao, Bo Cheng, Shengkun Ma, Wei Lu:
Generative Prompt Tuning for Relation Classification. EMNLP (Findings) 2022: 3170-3185 - [c33]Daxing Zhao, Shuai Zhao, Ruiqiang Liu, Qiuman Xu, Bo Cheng:
Long-term Traffic Prediction Using Time-varying Adjacency Mask and Self-Smoothing Regularization. IJCNN 2022: 1-8 - [c32]Hao Yang, Shimin Tao, Minghan Wang, Min Zhang, Daimeng Wei, Shuai Zhao, Miaomiao Ma, Ying Qin:
CCDC: A Chinese-Centric Cross Domain Contrastive Learning Framework. KSEM (2) 2022: 225-236 - [c31]Yi Liang, Shuai Zhao, Bo Cheng, Yuwei Yin, Hao Yang:
Tackling Solitary Entities for Few-Shot Knowledge Graph Completion. KSEM (1) 2022: 227-239 - [c30]Devamanyu Hazarika, Yingting Li, Bo Cheng, Shuai Zhao, Roger Zimmermann, Soujanya Poria:
Analyzing Modality Robustness in Multimodal Sentiment Analysis. NAACL-HLT 2022: 685-696 - [i5]Yi Liang, Shuai Zhao, Bo Cheng, Yuwei Yin, Hao Yang:
Exploring Entity Interactions for Few-Shot Relation Learning (Student Abstract). CoRR abs/2205.01878 (2022) - [i4]Devamanyu Hazarika, Yingting Li, Bo Cheng, Shuai Zhao, Roger Zimmermann, Soujanya Poria:
Analyzing Modality Robustness in Multimodal Sentiment Analysis. CoRR abs/2205.15465 (2022) - [i3]Jiale Han, Shuai Zhao, Bo Cheng, Shengkun Ma, Wei Lu:
Generative Prompt Tuning for Relation Classification. CoRR abs/2210.12435 (2022) - 2021
- [c29]Tao Zhang, Shuai Zhao, Bo Cheng, Junliang Chen:
ATeDLW: Intelligent Detection of Abnormal Trajectory in Ship Data Service System. SCC 2021: 401-406 - [c28]Xu Wang, Hainan Zhang, Shuai Zhao, Yanyan Zou, Hongshen Chen, Zhuoye Ding, Bo Cheng, Yanyan Lan:
FCM: A Fine-grained Comparison Model for Multi-turn Dialogue Reasoning. EMNLP (Findings) 2021: 4284-4293 - [c27]Xu Wang, Shuai Zhao, Bo Cheng, Jiale Han, Yingting Li, Hao Yang, Ivan Sekulic, Guoshun Nan:
Integrating Subgraph-Aware Relation and Direction Reasoning for Question Answering. ICASSP 2021: 7808-7812 - [i2]Xu Wang, Shuai Zhao, Bo Cheng, Jiale Han, Yingting Li, Hao Yang, Ivan Sekulic, Guoshun Nan:
Integrating Subgraph-aware Relation and DirectionReasoning for Question Answering. CoRR abs/2104.00218 (2021) - [i1]Xu Wang, Hainan Zhang, Shuai Zhao, Yanyan Zou, Hongshen Chen, Zhuoye Ding, Bo Cheng, Yanyan Lan:
FCM: A Fine-grained Comparison Model for Multi-turn Dialogue Reasoning. CoRR abs/2109.10510 (2021) - 2020
- [j31]Tongguang Zhang, Shuai Zhao, Bo Cheng:
Multipath Routing and MPTCP-Based Data Delivery Over Manets. IEEE Access 8: 32652-32673 (2020) - [j30]Tao Zhang, Shuai Zhao, Bo Cheng, Junliang Chen:
Detection of AIS Closing Behavior and MMSI Spoofing Behavior of Ships Based on Spatiotemporal Data. Remote. Sens. 12(4): 702 (2020) - [j29]Shengjie Li, Shuai Zhao, Bo Cheng, Junliang Chen:
Efficient Particle Scale Space for Robust Tracking. IEEE Signal Process. Lett. 27: 371-375 (2020) - [j28]Shengjie Li, Shuai Zhao, Bo Cheng, Erhu Zhao, Junliang Chen:
Robust Visual Tracking via Hierarchical Particle Filter and Ensemble Deep Features. IEEE Trans. Circuits Syst. Video Technol. 30(1): 179-191 (2020) - [j27]Shoulu Hou, Wei Ni, Shuai Zhao, Bo Cheng, Shiping Chen, Junliang Chen:
Frequency-Reconfigurable Cloud Versus Fog Computing: An Energy-Efficiency Aspect. IEEE Trans. Green Commun. Netw. 4(1): 221-235 (2020) - [j26]Shoulu Hou, Wei Ni, Shuai Zhao, Bo Cheng, Shiping Chen, Junliang Chen:
Decentralized Real-Time Optimization of Voltage Reconfigurable Cloud Computing Data Center. IEEE Trans. Green Commun. Netw. 4(2): 577-592 (2020) - [j25]Shoulu Hou, Wei Ni, Shiping Chen, Shuai Zhao, Bo Cheng, Junliang Chen:
Real-Time Optimization of Dynamic Speed Scaling for Distributed Data Centers. IEEE Trans. Netw. Sci. Eng. 7(3): 2090-2103 (2020) - [j24]Bo Cheng, Shoulu Hou, Ming Wang, Shuai Zhao, Junliang Chen:
HSOP: A Hybrid Service Orchestration Platform for Internet-Telephony Networks. IEEE/ACM Trans. Netw. 28(3): 1102-1115 (2020) - [c26]Xu Wang, Shuai Zhao, Bo Cheng, Jiale Han, Yingting Li, Hao Yang, Guoshun Nan:
HGMAN: Multi-Hop and Multi-Answer Question Answering Based on Heterogeneous Knowledge Graph (Student Abstract). AAAI 2020: 13953-13954 - [c25]Ruiqiang Liu, Shuai Zhao, Bo Cheng, Hao Yang, Haina Tang, Taoyu Li:
Deep Spatio-Temporal Multiple Domain Fusion Network for Urban Anomalies Detection. CIKM 2020: 905-914 - [c24]Xu Wang, Shuai Zhao, Jiale Han, Bo Cheng, Hao Yang, Jianchang Ao, Zhenzi Li:
Modelling Long-distance Node Relations for KBQA with Global Dynamic Graph. COLING 2020: 2572-2582 - [c23]Ruiqiang Liu, Shuai Zhao, Bo Cheng, Hao Yang, Haina Tang, Fangfang Yang:
ST-MFM: A Spatiotemporal Multi-Modal Fusion Model for Urban Anomalies Prediction. ECAI 2020: 1922-1929 - [c22]Zhengxing Zhu, Shuai Zhao, Bo Cheng:
Design and Implementation of multi-dimensional History Playback System Based on IoT Data. ICCAE 2020: 161-166 - [c21]Xu Wang, Shuai Zhao, Bo Cheng, Jiale Han, Xiangsheng Wei, Yi Liang, Hao Yang:
DVKCM: Knowledge-guided Conversation Generation with Dynamic Vocabulary. IJCNN 2020: 1-8
2010 – 2019
- 2019
- [j23]Yong-Yang Cheng, Shuai Zhao, Bo Cheng, Xiwei Chen, Junliang Chen:
Modeling and Deploying IoT-Aware Business Process Applications in Sensor Networks. Sensors 19(1): 111 (2019) - [c20]Ying Jin, Shuai Zhao, Yudong Wu:
Geographic Entity Relationship Extraction Model Based on Piecewise Convolution of Residual Network. ICMLSC 2019: 160-165 - [c19]Meng Wang, Bo Cheng, Shuai Zhao, Biyi Li, Wendi Feng, Junliang Chen:
Availability-Aware Service Chain Composition and Mapping in NFV-Enabled Networks. ICWS 2019: 107-115 - [c18]Tao Zhang, Shuai Zhao, Junliang Chen:
Research on Ship Classification Based on Trajectory Association. KSEM (1) 2019: 327-340 - 2018
- [j22]Tongguang Zhang, Shuai Zhao, Bo Cheng, Bingfei Ren, Junliang Chen:
FEP: High Fidelity Experiment Platform for Mobile Networks. IEEE Access 6: 3858-3871 (2018) - [j21]Tongguang Zhang, Shuai Zhao, Bo Cheng, Maurizio Farina, Jiwei Huang, Junliang Chen, Bingfei Ren, Shoulu Hou:
Lightweight SOA-Based Multi-Engine Architecture for Workflow Systems in Mobile Ad Hoc Networks. IEEE Access 6: 14212-14222 (2018) - [j20]Shengjie Li, Shuai Zhao, Bo Cheng, Erhu Zhao, Junliang Chen:
Lightweight Particle Filter for Robust Visual Tracking. IEEE Access 6: 32310-32320 (2018) - [j19]Yong-Yang Cheng, Shuai Zhao, Bo Cheng, Shoulu Hou, Yulong Shi, Junliang Chen:
Modeling and Optimization for Collaborative Business Process Towards IoT Applications. Mob. Inf. Syst. 2018: 9174568:1-9174568:17 (2018) - [j18]Shengjie Li, Shuai Zhao, Bo Cheng, Junliang Chen:
Accelerated Particle Filter for Real-Time Visual Tracking With Decision Fusion. IEEE Signal Process. Lett. 25(7): 1094-1098 (2018) - [j17]Bo Cheng, Shuai Zhao, Junyan Qian, Zhongyi Zhai, Junliang Chen:
Lightweight Service Mashup Middleware With REST Style Architecture for IoT Applications. IEEE Trans. Netw. Serv. Manag. 15(3): 1063-1075 (2018) - [c17]Bo Cheng, Shuai Zhao, Junliang Chen:
Remote Monitoring and Control Web Service for Internet of Heating. COMPSAC (1) 2018: 785-786 - [c16]Sizhen Li, Shuai Zhao, Bo Cheng, Hao Yang:
An End-to-End Multi-task Learning Model for Fact Checking. FEVER@EMNLP 2018: 138-144 - [c15]Yong-Yang Cheng, Shuai Zhao, Bo Cheng, Junliang Chen:
A Service-Based Fog Execution Environment for the IoT-Aware Business Process Applications. ICWS 2018: 323-326 - [c14]Bo Cheng, Shuai Zhao, Meng Niu, Junliang Chen:
Agile IoT service communication and orchestration platform using event driven SOA paradigm. INFOCOM Workshops 2018: 1-2 - [c13]Tao Zhang, Shuai Zhao, Junliang Chen:
Ship Trajectory Outlier Detection Service System Based on Collaborative Computing. SERVICES 2018: 15-16 - 2017
- [j16]Shuai Zhao, Le Yu, Bo Cheng:
Probabilistic Community Using Link and Content for Social Networks. IEEE Access 5: 27189-27202 (2017) - [j15]Bo Cheng, Zhongyi Zhai, Shuai Zhao, Junliang Chen:
LSMP: A Lightweight Service Mashup Platform for Ordinary Users. IEEE Commun. Mag. 55(4): 116-123 (2017) - [j14]Shuai Zhao, Le Yu, Bo Cheng, Junliang Chen:
IoT Service Clustering for Dynamic Service Matchmaking. Sensors 17(8): 1727 (2017) - [j13]Bo Cheng, Shuai Zhao, Shangguang Wang, Junliang Chen:
Lightweight Mashup Middleware for Coal Mine Safety Monitoring and Control Automation. IEEE Trans Autom. Sci. Eng. 14(2): 1245-1255 (2017) - [j12]Bo Cheng, Shuai Zhao, Changbao Li, Junliang Chen:
A Web Services Discovery Approach Based on Mining Underlying Interface Semantics. IEEE Trans. Knowl. Data Eng. 29(5): 950-962 (2017) - [j11]Shou-lu Hou, Shuai Zhao, Bo Cheng, Shiping Chen, Yong-Yang Cheng, Junliang Chen:
A Distributed Deployment Algorithm of Process Fragments With Uncertain Traffic Matrix. IEEE Trans. Netw. Serv. Manag. 14(3): 690-701 (2017) - [j10]Bo Cheng, Ming Wang, Shuai Zhao, Zhongyi Zhai, Da Zhu, Junliang Chen:
Situation-Aware Dynamic Service Coordination in an IoT Environment. IEEE/ACM Trans. Netw. 25(4): 2082-2095 (2017) - [c12]Tao Zhang, Shuai Zhao:
Application of Batch and Stream Collaborative Computing in Urban Traffic Data Processing. ICA3PP 2017: 725-734 - [c11]Yong-Yang Cheng, Shuai Zhao, Bo Cheng, Shou-lu Hou, Xiulei Zhang, Junliang Chen:
A Distributed Event-Centric Collaborative Workflows Development System for IoT Application. ICDCS 2017: 2547-2550 - [c10]Tongguang Zhang, Shuai Zhao, Bingfei Ren, Yulong Shi, Bo Cheng, Junliang Chen:
Performance enhancement of multipath TCP in mobile Ad Hoc networks. ICNP 2017: 1-2 - [c9]Tongguang Zhang, Shuai Zhao, Yulong Shi, Bingfei Ren, Bo Cheng, Junliang Chen:
The implementation of improved MPTCP in MANETs. ICNP 2017: 1-2 - [c8]Yimeng Feng, Bo Cheng, Shuai Zhao, Zhongyi Zhai, Zhaoning Wang, Meng Niu, Junliang Chen:
Poster: MobiTemplate: A Template-based Rapid Cross-Platform Mobile Application Development Environment. MobiSys 2017: 150 - [c7]Yong-Yang Cheng, Shuai Zhao, Bo Cheng, Junliang Chen:
A Resource Oriented Modeling Approach for the Internet of Things: A Business Process Perspective. MoDELS (Satellite Events) 2017: 465-467 - 2016
- [j9]Li Duan, Yang Zhang, Shiping Chen, Shuai Zhao, Shiyao Wang, Dongxi Liu, Ren Ping Liu, Bo Cheng, Junliang Chen:
Automated Policy Combination for Secure Data Sharing in Cross-Organizational Collaborations. IEEE Access 4: 3454-3468 (2016) - [j8]Shuai Zhao, Le Yu, Bo Cheng:
An Event-Driven Service Provisioning Mechanism for IoT (Internet of Things) System Interaction. IEEE Access 4: 5038-5051 (2016) - [j7]Shuai Zhao, Bo Cheng, Le Yu, Shou-lu Hou, Yang Zhang, Junliang Chen:
Internet of Things Service Provisioning Platform for Cross-Application Cooperation. Int. J. Web Serv. Res. 13(1): 1-22 (2016) - [j6]Shuai Zhao, Le Yu, Bo Cheng:
A Real-Time Web of Things Framework with Customizable Openness Considering Legacy Devices. Sensors 16(10): 1596 (2016) - [j5]Bo Cheng, Da Zhu, Shuai Zhao, Junliang Chen:
Situation-Aware IoT Service Coordination Using the Event-Driven SOA Paradigm. IEEE Trans. Netw. Serv. Manag. 13(2): 349-361 (2016) - [c6]Shou-lu Hou, Shuai Zhao, Bo Cheng, Yong-Yang Cheng, Junliang Chen:
Fragmentation and Optimal Deployment for IoT-Aware Business Process. SCC 2016: 657-664 - [c5]Bo Cheng, Shuai Zhao, Changbao Li, Junliang Chen:
MISDA: Web Services Discovery Approach Based on Mining Interface Semantics. ICWS 2016: 332-339 - [c4]Tongguang Zhang, Shuai Zhao, Bo Cheng, Junliang Chen:
SEEM: simulation experimental environments for mobile applications in MANETs: poster. MobiCom 2016: 454-455 - [c3]Bingfei Ren, Chuanchang Liu, Bo Cheng, Shuangxi Hong, Shuai Zhao, Junliang Chen:
EasyGuard: enhanced context-aware adaptive access control system for android platform: poster. MobiCom 2016: 458-459 - 2015
- [j4]Shuai Zhao, Yang Zhang, Le Yu, Bo Cheng, Yang Ji, Junliang Chen:
A multidimensional resource model for dynamic resource matching in internet of things. Concurr. Comput. Pract. Exp. 27(8): 1819-1843 (2015) - [j3]Jie Guo, Bo Cheng, Shuai Zhao, Junliang Chen:
Cross-Platform Android/iOS-Based Smart Switch Control Middleware in a Digital Home. Mob. Inf. Syst. 2015: 627859:1-627859:12 (2015) - [j2]Bo Cheng, Shuai Zhao, Haina Tang:
Wireless Machine to Machine Monitoring Using Cross-Platform Smart Phone for District Heating. Wirel. Pers. Commun. 83(2): 1229-1250 (2015) - 2014
- [j1]Shuai Zhao, Yang Zhang, Bo Cheng, Junliang Chen:
A Feedback-corrected Collaborative Filtering for Personalized Real-world Service Recommendation. Int. J. Comput. Commun. Control 9(3): 356-369 (2014) - [c2]Le Yu, Bin Wu, Shuai Zhao, Bai Wang:
Overlapping community detection in large networks from a data fusion view. ASONAM 2014: 118-121 - 2012
- [c1]Shuai Zhao, Yang Zhang, Junliang Chen:
An Ontology-Based IoT Resource Model for Resources Evolution and Reverse Evolution. ICSOC 2012: 779-789
Coauthor Index
manage site settings
To protect your privacy, all features that rely on external API calls from your browser are turned off by default. You need to opt-in for them to become active. All settings here will be stored as cookies with your web browser. For more information see our F.A.Q.
Unpaywalled article links
Add open access links from to the list of external document links (if available).
Privacy notice: By enabling the option above, your browser will contact the API of unpaywall.org to load hyperlinks to open access articles. Although we do not have any reason to believe that your call will be tracked, we do not have any control over how the remote server uses your data. So please proceed with care and consider checking the Unpaywall privacy policy.
Archived links via Wayback Machine
For web page which are no longer available, try to retrieve content from the of the Internet Archive (if available).
Privacy notice: By enabling the option above, your browser will contact the API of archive.org to check for archived content of web pages that are no longer available. Although we do not have any reason to believe that your call will be tracked, we do not have any control over how the remote server uses your data. So please proceed with care and consider checking the Internet Archive privacy policy.
Reference lists
Add a list of references from , , and to record detail pages.
load references from crossref.org and opencitations.net
Privacy notice: By enabling the option above, your browser will contact the APIs of crossref.org, opencitations.net, and semanticscholar.org to load article reference information. Although we do not have any reason to believe that your call will be tracked, we do not have any control over how the remote server uses your data. So please proceed with care and consider checking the Crossref privacy policy and the OpenCitations privacy policy, as well as the AI2 Privacy Policy covering Semantic Scholar.
Citation data
Add a list of citing articles from and to record detail pages.
load citations from opencitations.net
Privacy notice: By enabling the option above, your browser will contact the API of opencitations.net and semanticscholar.org to load citation information. Although we do not have any reason to believe that your call will be tracked, we do not have any control over how the remote server uses your data. So please proceed with care and consider checking the OpenCitations privacy policy as well as the AI2 Privacy Policy covering Semantic Scholar.
OpenAlex data
Load additional information about publications from .
Privacy notice: By enabling the option above, your browser will contact the API of openalex.org to load additional information. Although we do not have any reason to believe that your call will be tracked, we do not have any control over how the remote server uses your data. So please proceed with care and consider checking the information given by OpenAlex.
last updated on 2024-10-23 20:36 CEST by the dblp team
all metadata released as open data under CC0 1.0 license
see also: Terms of Use | Privacy Policy | Imprint