default search action
Henny Admoni
Person information
Refine list
refinements active!
zoomed in on ?? of ?? records
view refined list in
export refined list as
2020 – today
- 2024
- [j19]Stephanie Valencia, Mark Steidl, Michael L. Rivera, Cynthia L. Bennett, Jeffrey P. Bigham, Henny Admoni:
Nonverbal Communication through Expressive Objects. Commun. ACM 67(1): 123-131 (2024) - [j18]Pranay Gupta, Abhijat Biswas, Henny Admoni, David Held:
Object Importance Estimation Using Counterfactual Reasoning for Intelligent Driving. IEEE Robotics Autom. Lett. 9(4): 3648-3655 (2024) - [c58]Benjamin A. Newman, Christopher Jason Paxton, Kris Kitani, Henny Admoni:
Bootstrapping Linear Models for Fast Online Adaptation in Human-Agent Collaboration. AAMAS 2024: 1463-1472 - [c57]Abhijat Biswas, Badal Arun Pardhi, Caleb Chuck, Jarrett Holtz, Scott Niekum, Henny Admoni, Alessandro Allievi:
Gaze Supervision for Mitigating Causal Confusion in Driving Agents. AAMAS 2024: 2159-2161 - [c56]Stephanie Valencia, Jessica Huynh, Emma Y. Jiang, Yufei Wu, Teresa Wan, Zixuan Zheng, Henny Admoni, Jeffrey P. Bigham, Amy Pavel:
COMPA: Using Conversation Context to Achieve Common Ground in AAC. CHI 2024: 915:1-915:18 - [c55]Henny Admoni, Wafa Johal, Daniel Szafir, Anara Sandygulova:
Designing an Introductory HRI Course. HRI (Companion) 2024: 1302-1304 - [c54]Nina Marie Moorman, Michelle Zhao, Henny Admoni, Reid G. Simmons, Matthew C. Gombolay:
HRI '24: Workshop on Aging in Place. HRI (Companion) 2024: 1344-1345 - [c53]Ravi Pandya, Michelle Zhao, Changliu Liu, Reid G. Simmons, Henny Admoni:
Multi-Agent Strategy Explanations for Human-Robot Collaboration. ICRA 2024: 17351-17357 - [c52]Abhijat Biswas, Badal Arun Pardhi, Caleb Chuck, Jarrett Holtz, Scott Niekum, Henny Admoni, Alessandro Allievi:
Gaze Supervision for Mitigating Causal Confusion in Driving Agents. IV 2024: 2331-2338 - [c51]Jessie Yuan, Janavi Gupta, Akhil Padmanabha, Zulekha Karachiwalla, Carmel Majidi, Henny Admoni, Zackory Erickson:
Towards an LLM-Based Speech Interface for Robot-Assisted Feeding. UIST (Adjunct Volume) 2024: 39:1-39:4 - [c50]Akhil Padmanabha, Jessie Yuan, Janavi Gupta, Zulekha Karachiwalla, Carmel Majidi, Henny Admoni, Zackory Erickson:
VoicePilot: Harnessing LLMs as Speech Interfaces for Physically Assistive Robots. UIST 2024: 116:1-116:18 - [i19]Henny Admoni, Daniel Szafir, Wafa Johal, Anara Sandygulova:
Paper index: Designing an introductory HRI course (workshop at HRI 2024). CoRR abs/2403.05588 (2024) - [i18]Akhil Padmanabha, Jessie Yuan, Janavi Gupta, Zulekha Karachiwalla, Carmel Majidi, Henny Admoni, Zackory Erickson:
VoicePilot: Harnessing LLMs as Speech Interfaces for Physically Assistive Robots. CoRR abs/2404.04066 (2024) - [i17]Benjamin A. Newman, Christopher Jason Paxton, Kris Kitani, Henny Admoni:
Bootstrapping Linear Models for Fast Online Adaptation in Human-Agent Collaboration. CoRR abs/2404.10733 (2024) - [i16]Suresh Kumaar Jayaraman, Reid G. Simmons, Aaron Steinfeld, Henny Admoni:
Understanding Robot Minds: Leveraging Machine Teaching for Transparent Human-Robot Collaboration Across Diverse Groups. CoRR abs/2404.15472 (2024) - [i15]Michelle Zhao, Reid G. Simmons, Henny Admoni, Andrea Bajcsy:
Conformalized Teleoperation: Confidently Mapping Human Inputs to High-Dimensional Robot Actions. CoRR abs/2406.07767 (2024) - [i14]Michael S. Lee, Reid G. Simmons, Henny Admoni:
Closed-loop Teaching via Demonstrations to Improve Policy Transparency. CoRR abs/2406.11850 (2024) - [i13]Benjamin A. Newman, Pranay Gupta, Kris Kitani, Yonatan Bisk, Henny Admoni, Christopher Jason Paxton:
DegustaBot: Zero-Shot Visual Preference Estimation for Personalized Multi-Object Rearrangement. CoRR abs/2407.08876 (2024) - [i12]Michelle Zhao, Reid G. Simmons, Henny Admoni, Aaditya Ramdas, Andrea Bajcsy:
Conformalized Interactive Imitation Learning: Handling Expert Shift and Intermittent Feedback. CoRR abs/2410.08852 (2024) - [i11]Jessie Yuan, Janavi Gupta, Akhil Padmanabha, Zulekha Karachiwalla, Carmel Majidi, Henny Admoni, Zackory Erickson:
Towards an LLM-Based Speech Interface for Robot-Assisted Feeding. CoRR abs/2410.20624 (2024) - 2023
- [j17]Michelle Zhao, Fade R. Eadeh, Thuy-Ngoc Nguyen, Pranav Gupta, Henny Admoni, Cleotilde Gonzalez, Anita Williams Woolley:
Teaching agents to understand teamwork: Evaluating and predicting collective intelligence as a latent variable via Hidden Markov Models. Comput. Hum. Behav. 139: 107524 (2023) - [j16]Henny Admoni, Karinne Ramirez-Amaro:
IDEA: A New Initiative to Foster Diversity and Inclusion in the Robotics and Automation Society [Women in Engineering]. IEEE Robotics Autom. Mag. 30(4): 88-90 (2023) - [c49]Abhijat Biswas, Henny Admoni:
Characterizing Drivers' Peripheral Vision via the Functional Field of View for Intelligent Driving Assistance. CogSci 2023 - [c48]Michelle D. Zhao, Reid G. Simmons, Henny Admoni:
Learning Human Contribution Preferences in Collaborative Human-Robot Tasks. CoRL 2023: 3597-3618 - [c47]Benjamin A. Newman, Christopher Jason Paxton, Kris Kitani, Henny Admoni:
Towards Online Adaptation for Autonomous Household Assistants. HRI (Companion) 2023: 506-510 - [c46]Abhijat Biswas, Henny Admoni:
Characterizing Drivers' Peripheral Vision via the Functional Field of View for Intelligent Driving Assistance. IV 2023: 1-8 - [i10]Ravi Pandya, Michelle Zhao, Changliu Liu, Reid G. Simmons, Henny Admoni:
Multi-Agent Strategy Explanations for Human-Robot Collaboration. CoRR abs/2311.11955 (2023) - [i9]Pranay Gupta, Abhijat Biswas, Henny Admoni, David Held:
Object Importance Estimation using Counterfactual Reasoning for Intelligent Driving. CoRR abs/2312.02467 (2023) - 2022
- [j15]Benjamin A. Newman, Reuben M. Aronson, Siddhartha S. Srinivasa, Kris Kitani, Henny Admoni:
HARMONIC: A multimodal dataset of assistive human-robot collaboration. Int. J. Robotics Res. 41(1): 3-11 (2022) - [j14]Abhijat Biswas, Allan Wang, Gustavo Silvera, Aaron Steinfeld, Henny Admoni:
SocNavBench: A Grounded Simulation Testing Framework for Evaluating Social Navigation. ACM Trans. Hum. Robot Interact. 11(3): 26:1-26:24 (2022) - [j13]Adam Norton, Henny Admoni, Jacob W. Crandall, Tesca Fitzgerald, Alvika Gautam, Michael A. Goodrich, Amy Saretsky, Matthias Scheutz, Reid G. Simmons, Aaron Steinfeld, Holly A. Yanco:
Metrics for Robot Proficiency Self-assessment and Communication of Proficiency in Human-robot Teams. ACM Trans. Hum. Robot Interact. 11(3): 29:1-29:38 (2022) - [c45]Tesca Fitzgerald, Pallavi Koppol, Patrick Callaghan, Russell Quinlan Jun Hei Wong, Reid G. Simmons, Oliver Kroemer, Henny Admoni:
INQUIRE: INteractive Querying for User-aware Informative REasoning. CoRL 2022: 2241-2250 - [c44]Gustavo Silvera, Abhijat Biswas, Henny Admoni:
DReyeVR: Democratizing Virtual Reality Driving Simulation for Behavioural & Interaction Research. HRI 2022: 639-643 - [c43]Michelle Zhao, Reid G. Simmons, Henny Admoni:
Coordination With Humans Via Strategy Matching. IROS 2022: 9116-9123 - [c42]Michael S. Lee, Henny Admoni, Reid G. Simmons:
Reasoning about Counterfactuals to Improve Human Inverse Reinforcement Learning. IROS 2022: 9140-9147 - [c41]Ada Virginia Taylor, Roman Kaufman, Michael Huang, Henny Admoni:
Group Activity Recognition in Restaurants to Address Underlying Needs: A Case Study. RO-MAN 2022: 236-243 - [c40]Ada Virginia Taylor, Ellie Mamantov, Henny Admoni:
Observer-Aware Legibility for Social Navigation. RO-MAN 2022: 1115-1122 - [c39]Reuben M. Aronson, Henny Admoni:
Gaze Complements Control Input for Goal Prediction During Assisted Teleoperation. Robotics: Science and Systems 2022 - [i8]Gustavo Silvera, Abhijat Biswas, Henny Admoni:
DReyeVR: Democratizing Virtual Reality Driving Simulation for Behavioural & Interaction Research. CoRR abs/2201.01931 (2022) - [i7]Michael S. Lee, Henny Admoni, Reid G. Simmons:
Reasoning about Counterfactuals to Improve Human Inverse Reinforcement Learning. CoRR abs/2203.01855 (2022) - [i6]Allan Wang, Abhijat Biswas, Henny Admoni, Aaron Steinfeld:
Towards Rich, Portable, and Large-Scale Pedestrian Data Collection. CoRR abs/2203.01974 (2022) - [i5]Michelle Zhao, Reid G. Simmons, Henny Admoni:
Coordination with Humans via Strategy Matching. CoRR abs/2210.15099 (2022) - 2021
- [j12]Hadas Kress-Gazit, Kerstin Eder, Guy Hoffman, Henny Admoni, Brenna Argall, Rüdiger Ehlers, Christoffer Heckman, Nils Jansen, Ross A. Knepper, Jan Kretínský, Shelly Levy-Tzedek, Jamy Li, Todd D. Murphey, Laurel D. Riek, Dorsa Sadigh:
Formalizing and guaranteeing human-robot interaction. Commun. ACM 64(9): 78-84 (2021) - [j11]Juan Pablo Vásconez, Henny Admoni, Fernando Alfredo Auat:
A methodology for semantic action recognition based on pose and human-object interaction in avocado harvesting processes. Comput. Electron. Agric. 184: 106057 (2021) - [j10]Michael S. Lee, Henny Admoni, Reid G. Simmons:
Machine Teaching for Human Inverse Reinforcement Learning. Frontiers Robotics AI 8: 693050 (2021) - [j9]Benjamin A. Newman, Reuben M. Aronson, Kris Kitani, Henny Admoni:
Helping People Through Space and Time: Assistance as a Perspective on Human-Robot Interaction. Frontiers Robotics AI 8: 720319 (2021) - [j8]Zhao Han, Daniel Giger, Jordan Allspaw, Michael S. Lee, Henny Admoni, Holly A. Yanco:
Building the Foundation of Robot Explanation Generation Using Behavior Trees. ACM Trans. Hum. Robot Interact. 10(3): 26:1-26:31 (2021) - [c38]Yaxin Hu, Lingjie Feng, Bilge Mutlu, Henny Admoni:
Exploring the Role of Social Robot Behaviors in a Creative Activity. Conference on Designing Interactive Systems 2021: 1380-1389 - [c37]Stephanie Valencia, Mark Steidl, Michael L. Rivera, Cynthia L. Bennett, Jeffrey P. Bigham, Henny Admoni:
Aided Nonverbal Communication through Physical Expressive Objects. ASSETS 2021: 43:1-43:11 - [c36]Stephanie Valencia, Michal Luria, Amy Pavel, Jeffrey P. Bigham, Henny Admoni:
Co-designing Socially Assistive Sidekicks for Motion-based AAC. HRI 2021: 24-33 - [c35]Calvin Z. Qiao, Maram Sakr, Katharina Muelling, Henny Admoni:
Learning from Demonstration for Real-Time User Goal Prediction and Shared Assistive Control. ICRA 2021: 3270-3275 - [c34]Pallavi Koppol, Henny Admoni, Reid G. Simmons:
Interaction Considerations in Learning from Humans. IJCAI 2021: 283-291 - [c33]Yuchen Cui, Pallavi Koppol, Henny Admoni, Scott Niekum, Reid G. Simmons, Aaron Steinfeld, Tesca Fitzgerald:
Understanding the Relationship between Interactions and Outcomes in Human-in-the-Loop Machine Learning. IJCAI 2021: 4382-4391 - [c32]Reuben M. Aronson, Nadia Almutlak, Henny Admoni:
Inferring Goals with Gaze during Teleoperated Manipulation. IROS 2021: 7307-7314 - [i4]Abhijat Biswas, Allan Wang, Gustavo Silvera, Aaron Steinfeld, Henny Admoni:
SocNavBench: A Grounded Simulation Testing Framework for Evaluating Social Navigation. CoRR abs/2103.00047 (2021) - 2020
- [c31]Stephanie Valencia, Amy Pavel, Jared Santa Maria, Seunga (Gloria) Yu, Jeffrey P. Bigham, Henny Admoni:
Conversational Agency in Augmentative and Alternative Communication. CHI 2020: 1-12 - [c30]Reuben M. Aronson, Henny Admoni:
Eye Gaze for Assistive Manipulation. HRI (Companion) 2020: 552-554 - [c29]Sarthak Ahuja, Henny Admoni, Aaron Steinfeld:
Learning Vision-Based Physics Intuition Models for Non-Disruptive Object Extraction. IROS 2020: 8161-8168 - [c28]Ada Virginia Taylor, Ayaka Matsumoto, Elizabeth J. Carter, Alexander Plopski, Henny Admoni:
Diminished Reality for Close Quarters Robotic Telemanipulation. IROS 2020: 11531-11538 - [c27]Benjamin A. Newman, Abhijat Biswas, Sarthak Ahuja, Siddharth Girdhar, Kris Makoto Kitani, Henny Admoni:
Examining the Effects of Anticipatory Robot Assistance on Human Decision Making. ICSR 2020: 590-603 - [i3]Hadas Kress-Gazit, Kerstin Eder, Guy Hoffman, Henny Admoni, Brenna Argall, Rüdiger Ehlers, Christoffer Heckman, Nils Jansen, Ross A. Knepper, Jan Kretínský, Shelly Levy-Tzedek, Jamy Li, Todd D. Murphey, Laurel D. Riek, Dorsa Sadigh:
Formalizing and Guaranteeing* Human-Robot Interaction. CoRR abs/2006.16732 (2020)
2010 – 2019
- 2019
- [c26]Reuben M. Aronson, Henny Admoni:
Semantic gaze labeling for human-robot shared manipulation. ETRA 2019: 2:1-2:9 - [c25]Alexander Plopski, Ada Virginia Taylor, Elizabeth Jeanne Carter, Henny Admoni:
InvisibleRobot: Facilitating Robot Manipulation Through Diminished Reality. ISMAR Adjunct 2019: 165-166 - 2018
- [j7]Rosario Scalise, Shen Li, Henny Admoni, Stephanie Rosenthal, Siddhartha S. Srinivasa:
Natural language instructions for human-robot collaborative manipulation. Int. J. Robotics Res. 37(6): 558-565 (2018) - [j6]Shervin Javdani, Henny Admoni, Stefania Pellegrinelli, Siddhartha S. Srinivasa, J. Andrew Bagnell:
Shared autonomy via hindsight optimization for teleoperation and teaming. Int. J. Robotics Res. 37(7): 717-742 (2018) - [c24]Reuben M. Aronson, Thiago Santini, Thomas C. Kübler, Enkelejda Kasneci, Siddhartha S. Srinivasa, Henny Admoni:
Eye-Hand Behavior in Human-Robot Shared Manipulation. HRI 2018: 4-13 - [i2]Benjamin A. Newman, Reuben M. Aronson, Siddhartha S. Srinivasa, Kris Kitani, Henny Admoni:
HARMONIC: A Multimodal Dataset of Assistive Human-Robot Collaboration. CoRR abs/1807.11154 (2018) - 2017
- [j5]Henny Admoni, Julie A. Shah, Siddhartha S. Srinivasa:
Editorial: Special Issue on Human-Robot Interaction. Int. J. Robotics Res. 36(5-7): 459-460 (2017) - [j4]Henny Admoni, Brian Scassellati:
Social eye gaze in human-robot interaction: a review. J. Hum. Robot Interact. 6(1): 25-63 (2017) - [c23]Shen Li, Rosario Scalise, Henny Admoni, Siddhartha S. Srinivasa, Stephanie Rosenthal:
Evaluating critical points in trajectories. RO-MAN 2017: 1357-1364 - [i1]Shervin Javdani, Henny Admoni, Stefania Pellegrinelli, Siddhartha S. Srinivasa, J. Andrew Bagnell:
Shared Autonomy via Hindsight Optimization for Teleoperation and Teaming. CoRR abs/1706.00155 (2017) - 2016
- [j3]Henny Admoni:
Nonverbal communication in socially assistive human-robot interaction. AI Matters 2(4): 9-10 (2016) - [j2]Álvaro Castro González, Henny Admoni, Brian Scassellati:
Effects of form and motion on judgments of social robots' animacy, likability, trustworthiness and unpleasantness. Int. J. Hum. Comput. Stud. 90: 27-38 (2016) - [c22]Henny Admoni, Siddhartha S. Srinivasa:
Predicting User Intent Through Eye Gaze for Shared Autonomy. AAAI Fall Symposia 2016 - [c21]Henny Admoni, Thomas Weng, Bradley Hayes, Brian Scassellati:
Robot Nonverbal Behavior Improves Task Performance In Difficult Collaborations. HRI 2016: 51-58 - [c20]Henny Admoni, Thomas Weng, Brian Scassellati:
Modeling communicative behaviors for object references in human-robot interaction. ICRA 2016: 3352-3359 - [c19]Stefania Pellegrinelli, Henny Admoni, Shervin Javdani, Siddhartha S. Srinivasa:
Human-robot shared workspace collaboration via hindsight optimization. IROS 2016: 831-838 - [c18]Shen Li, Rosario Scalise, Henny Admoni, Stephanie Rosenthal, Siddhartha S. Srinivasa:
Spatial references and perspective in natural language instructions for collaborative manipulation. RO-MAN 2016: 44-51 - [c17]Apurv Suman, Rebecca Marvin, Elena Corina Grigore, Henny Admoni, Brian Scassellati:
Prior behavior impacts human mimicry of robots. RO-MAN 2016: 1057-1062 - 2015
- [c16]Henny Admoni, Brian Scassellati:
Robot Nonverbal Communication as an AI Problem (and Solution). AAAI Fall Symposia 2015: 2-4 - 2014
- [c15]Henny Admoni, Brian Scassellati:
Nonverbal Behavior Modeling for Socially Assistive Robots. AAAI Fall Symposia 2014 - [c14]Henny Admoni, Christopher Datsikas, Brian Scassellati:
Speech and Gaze Conflicts in Collaborative Human-Robot Interactions. CogSci 2014 - [c13]Ahsan Nawroj, Mariya Toneva, Henny Admoni, Brian Scassellati:
An Exploration of Social Grouping in Robots: Effects of Behavioral Mimicry, Appearance, and Eye Gaze. CogSci 2014 - [c12]Henny Admoni, Anca D. Dragan, Siddhartha S. Srinivasa, Brian Scassellati:
Deliberate delays during robot-to-human handovers improve compliance with gaze communication. HRI 2014: 49-56 - [c11]Henny Admoni, Brian Scassellati:
Data-Driven Model of Nonverbal Behavior for Socially Assistive Human-Robot Interactions. ICMI 2014: 196-199 - [c10]Henny Admoni:
Toward a data-driven generative behavior model for human-robot interaction. MARS@MobiSys 2014: 1 - [c9]Henny Admoni, Brian Scassellati:
Demo: toward a data-driven generative behavior model for human-robot interaction. MARS@MobiSys 2014: 19-20 - [c8]Henny Admoni, Taskin Padir, Junehwa Song, Daniel M. Lofaro:
Panel: future research trends in robotics technologies. MARS@MobiSys 2014: 51 - 2013
- [c7]Henny Admoni, Bradley Hayes, David Feil-Seifer, Daniel Ullman, Brian Scassellati:
Dancing With Myself: The effect of majority group size on perceptions of majority and minority robot group members. CogSci 2013 - [c6]Henny Admoni, Bradley Hayes, David Feil-Seifer, Daniel Ullman, Brian Scassellati:
Are you looking at me?: perception of robot attention is mediated by gaze type and group size. HRI 2013: 389-396 - [c5]Solace Shen, Astrid M. Rosenthal-von der Pütten, Henny Admoni, Matt Beane, Caroline E. Harriott, Yasuhiko Hato, Yunkyung Kim, Daniel A. Lazewatsky, Matt Marge, Robin Read, Marynel Vázquez, Steve Vozar:
HRI pioneers workshop 2013. HRI 2013: 439-440 - 2012
- [c4]Henny Admoni, Brian Scassellati:
A Multi-Category Theory of Intention. CogSci 2012 - 2011
- [c3]Henny Admoni, Caroline Bank, Joshua Tan, Mariya Toneva, Brian Scassellati:
Robot gaze does not reflexively cue human attention. CogSci 2011 - [c2]Eric Aaron, Juan Pablo Mendoza, Henny Admoni:
Integrated Dynamical Intelligence for Interactive Embodied Agents. ICAART (2) 2011: 296-301 - 2010
- [j1]Eric Aaron, Henny Admoni:
Action selection and task sequence learning for hybrid dynamical cognitive agents. Robotics Auton. Syst. 58(9): 1049-1056 (2010)
2000 – 2009
- 2009
- [c1]Eric Aaron, Henny Admoni:
A Framework for Dynamical Intention in Hybrid Navigating Agents. HAIS 2009: 18-25
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 2024-12-01 00:19 CET by the dblp team
all metadata released as open data under CC0 1.0 license
see also: Terms of Use | Privacy Policy | Imprint