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arxiv: 2411.09209 · v5 · submitted 2024-11-14 · 💻 cs.CV

JoyVASA: Portrait and Animal Image Animation with Diffusion-Based Audio-Driven Facial Dynamics and Head Motion Generation

Pith reviewed 2026-05-23 16:52 UTC · model grok-4.3

classification 💻 cs.CV
keywords audio-driven facial animationdiffusion transformerdecoupled representationhead motion generationportrait animationanimal face animationmultilingual support
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The pith

Decoupling static 3D faces from audio-driven motions enables animation of any portrait or animal face.

A machine-rendered reading of the paper's core claim, the machinery that carries it, and where it could break.

The paper introduces a two-stage method for audio-driven facial animation. First, it separates static 3D facial structure from dynamic expressions to allow flexible combination. Second, it uses a diffusion transformer to create motion sequences from audio without depending on the character's identity. This setup supports longer videos and extends the animation to animal faces using the same process. A generator then renders the final video from the static representation and motions.

Core claim

JoyVASA separates dynamic facial expressions from static 3D facial representations in the first stage, allowing any static 3D face to pair with generated motions. In the second stage, a diffusion transformer generates motion sequences directly from audio in an identity-independent manner. The generator then renders high-quality animations, extending the method to animal faces seamlessly.

What carries the argument

The decoupled facial representation framework that separates dynamic facial expressions from static 3D facial representations, combined with an identity-independent diffusion transformer for motion generation from audio.

If this is right

  • Longer videos become possible by reusing the same motion sequence with different static representations.
  • Animal faces can be animated using the same audio-to-motion generator without retraining.
  • Multilingual audio support is achieved through training on mixed Chinese and English data.
  • Inter-frame continuity improves because motions are generated as sequences rather than frame-by-frame.

Where Pith is reading between the lines

These are editorial extensions of the paper, not claims the author makes directly.

  • Similar decoupling could apply to animating full human bodies or objects if 3D representations are available.
  • The identity-independent motion might allow mixing motions from different audio sources for creative editing.

Load-bearing premise

That combining any static 3D facial representation with the generated motion sequences produces high-quality animations without introducing artifacts or breaking consistency between frames.

What would settle it

A test where a generated motion sequence is applied to a new static 3D animal or human face and the resulting video shows visible artifacts, flickering, or mismatched expressions.

Figures

Figures reproduced from arXiv: 2411.09209 by Guoxin Wang, Jintao Fei, Jun Zhao, Minyu Gao, Pei Xie, Sheng Shi, Xuyang Cao, Yang Yao.

Figure 1
Figure 1. Figure 1: Inference Pipeline of the proposed JoyVASA. [PITH_FULL_IMAGE:figures/full_fig_p002_1.png] view at source ↗
Figure 2
Figure 2. Figure 2: Training process of the audio-driven motion sequence generation. The audio feature and real motion sequences [PITH_FULL_IMAGE:figures/full_fig_p004_2.png] view at source ↗
Figure 3
Figure 3. Figure 3: Visualization results of different methods on the celebV-HQ test dataset. [PITH_FULL_IMAGE:figures/full_fig_p007_3.png] view at source ↗
Figure 4
Figure 4. Figure 4: Visualization results of different portraits driven by the same audio input on the Openset dataset. Note that [PITH_FULL_IMAGE:figures/full_fig_p008_4.png] view at source ↗
read the original abstract

Audio-driven portrait animation has made significant advances with diffusion-based models, improving video quality and lipsync accuracy. However, the increasing complexity of these models has led to inefficiencies in training and inference, as well as constraints on video length and inter-frame continuity. In this paper, we propose JoyVASA, a diffusion-based method for generating facial dynamics and head motion in audio-driven facial animation. Specifically, in the first stage, we introduce a decoupled facial representation framework that separates dynamic facial expressions from static 3D facial representations. This decoupling allows the system to generate longer videos by combining any static 3D facial representation with dynamic motion sequences. Then, in the second stage, a diffusion transformer is trained to generate motion sequences directly from audio cues, independent of character identity. Finally, a generator trained in the first stage uses the 3D facial representation and the generated motion sequences as inputs to render high-quality animations. With the decoupled facial representation and the identity-independent motion generation process, JoyVASA extends beyond human portraits to animate animal faces seamlessly. The model is trained on a hybrid dataset of private Chinese and public English data, enabling multilingual support. Experimental results validate the effectiveness of our approach. Future work will focus on improving real-time performance and refining expression control, further expanding the applications in portrait animation. The code is available at: https://github.com/jdh-algo/JoyVASA.

Editorial analysis

A structured set of objections, weighed in public.

Desk editor's note, referee report, simulated authors' rebuttal, and a circularity audit. Tearing a paper down is the easy half of reading it; the pith above is the substance, this is the friction.

Referee Report

2 major / 1 minor

Summary. The paper presents JoyVASA, a two-stage diffusion-based method for audio-driven facial animation of portraits and animals. Stage 1 introduces a decoupled facial representation that separates static 3D facial features from dynamic expressions, allowing any static representation to be paired with generated motions for longer videos. Stage 2 trains a diffusion transformer to produce identity-independent motion sequences directly from audio. A generator then renders the final animation. The method is trained on a hybrid private Chinese and public English dataset for multilingual support and claims seamless extension to animal faces. The abstract states that experimental results validate the approach, and code is released.

Significance. If the central claims hold, the decoupling of static 3D representation from identity-independent motion generation could improve training efficiency, support longer sequences, and enable cross-species animation without per-identity retraining. The hybrid dataset for multilingual capability and public code release are concrete strengths that would aid reproducibility and adoption if quantitative validation is supplied.

major comments (2)
  1. [Abstract] Abstract: The manuscript states that 'Experimental results validate the effectiveness of our approach' but supplies no quantitative metrics, ablation studies, error analysis, comparison tables, or figures. This absence is load-bearing because the central claims concern improved video quality, lipsync accuracy, inter-frame continuity, and seamless animal-face extension.
  2. [Abstract] Abstract (decoupled representation and motion generation): The claim that 'combining any static 3D facial representation with dynamic motion sequences' yields high-quality animations without artifacts or loss of continuity rests on an unexamined assumption. No analysis, experiments, or failure-case discussion addresses inter-frame consistency or artifact introduction when swapping static representations, which directly underpins the extension to animal faces and longer videos.
minor comments (1)
  1. [Abstract] Abstract: The statement that the model 'extends beyond human portraits to animate animal faces seamlessly' is presented without any supporting examples, qualitative results, or discussion of domain-specific challenges (e.g., differing facial topology).

Simulated Author's Rebuttal

2 responses · 0 unresolved

We thank the referee for the constructive feedback on the abstract and the central claims. We address each major comment point-by-point below.

read point-by-point responses
  1. Referee: [Abstract] Abstract: The manuscript states that 'Experimental results validate the effectiveness of our approach' but supplies no quantitative metrics, ablation studies, error analysis, comparison tables, or figures. This absence is load-bearing because the central claims concern improved video quality, lipsync accuracy, inter-frame continuity, and seamless animal-face extension.

    Authors: The abstract serves as a concise summary; the full manuscript contains a dedicated Experiments section with quantitative metrics, ablation studies, comparison tables, and figures evaluating video quality, lipsync accuracy, and continuity. To make the validation explicit in the abstract itself, we will revise it to reference key results (e.g., specific metrics on lipsync and quality). revision: yes

  2. Referee: [Abstract] Abstract (decoupled representation and motion generation): The claim that 'combining any static 3D facial representation with dynamic motion sequences' yields high-quality animations without artifacts or loss of continuity rests on an unexamined assumption. No analysis, experiments, or failure-case discussion addresses inter-frame consistency or artifact introduction when swapping static representations, which directly underpins the extension to animal faces and longer videos.

    Authors: The two-stage design trains the diffusion transformer on identity-independent motions and uses a generator that accepts arbitrary static 3D representations as input, enabling the claimed flexibility. We agree that explicit analysis of swapping is needed to support the animal-face and long-video claims. We will add a new subsection with quantitative inter-frame consistency metrics, artifact analysis, and failure cases for cross-identity and cross-species swaps. revision: yes

Circularity Check

0 steps flagged

No significant circularity detected

full rationale

The provided abstract and description present JoyVASA as a two-stage framework: a decoupled facial representation separating static 3D identity from dynamic expressions, followed by an identity-independent diffusion transformer generating motion sequences from audio. No equations, fitted parameters, or self-citations are shown that would reduce any claimed prediction or result to an input quantity by construction. The extension to animal faces is asserted as a direct consequence of the decoupling, without evidence of self-definitional loops or renamed empirical patterns. The derivation chain is self-contained against external benchmarks and does not rely on load-bearing self-citations or ansatzes smuggled via prior work.

Axiom & Free-Parameter Ledger

0 free parameters · 0 axioms · 0 invented entities

Abstract-only review supplies no information on free parameters, axioms, or invented entities.

pith-pipeline@v0.9.0 · 5806 in / 1010 out tokens · 39596 ms · 2026-05-23T16:52:29.688069+00:00 · methodology

discussion (0)

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Reference graph

Works this paper leans on

45 extracted references · 45 canonical work pages · 1 internal anchor

  1. [1]

    Geneface++: Generalized and stable real-time audio-driven 3d talking face generation

    Zhenhui Ye, Jinzheng He, Ziyue Jiang, Rongjie Huang, Jiawei Huang, Jinglin Liu, Yi Ren, Xiang Yin, Zejun Ma, and Zhou Zhao. Geneface++: Generalized and stable real-time audio-driven 3d talking face generation. arXiv preprint arXiv:2305.00787, 2023

  2. [2]

    Hallo2: Long-Duration and High-Resolution Audio-Driven Portrait Image Animation,

    Jiahao Cui, Hui Li, Yao Yao, Hao Zhu, Hanlin Shang, Kaihui Cheng, Hang Zhou, Siyu Zhu, and Jingdong Wang. Hallo2: Long-duration and high-resolution audio-driven portrait image animation. arXiv preprint arXiv:2410.07718, 2024

  3. [3]

    AniPortrait: Audio-Driven Synthesis of Photorealistic Portrait Animation,

    Huawei Wei, Zejun Yang, and Zhisheng Wang. Aniportrait: Audio-driven synthesis of photorealistic portrait animation. arXiv preprint arXiv:2403.17694, 2024

  4. [4]

    Loopy: Taming audio- driven portrait avatar with long-term motion dependency

    Jianwen Jiang, Chao Liang, Jiaqi Yang, Gaojie Lin, Tianyun Zhong, and Yanbo Zheng. Loopy: Taming audio- driven portrait avatar with long-term motion dependency. arXiv preprint arXiv:2409.02634, 2024

  5. [5]

    Vlogger: Multimodal diffusion for embodied avatar synthesis

    Enric Corona, Andrei Zanfir, Eduard Gabriel Bazavan, Nikos Kolotouros, Thiemo Alldieck, and Cristian Smin- chisescu. Vlogger: Multimodal diffusion for embodied avatar synthesis. arXiv preprint arXiv:2403.08764 , 2024

  6. [6]

    Emo: Emote portrait alive - generating expressive portrait videos with audio2video diffusion model under weak conditions, 2024

    Linrui Tian, Qi Wang, Bang Zhang, and Liefeng Bo. Emo: Emote portrait alive - generating expressive portrait videos with audio2video diffusion model under weak conditions, 2024. 9 JoyV ASA A PREPRINT

  7. [7]

    Emotalker: Emotionally editable talking face generation via diffusion model

    Bingyuan Zhang, Xulong Zhang, Ning Cheng, Jun Yu, Jing Xiao, and Jianzong Wang. Emotalker: Emotionally editable talking face generation via diffusion model. In ICASSP 2024-2024 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), pages 8276–8280. IEEE, 2024

  8. [8]

    Digital avatars: Promoting independent living for older adults

    Manuel F Bertoa, Nathalie Moreno, Alejandro Perez-Vereda, David Bandera, José M Álvarez-Palomo, and Carlos Canal. Digital avatars: Promoting independent living for older adults. Wireless Communications and Mobile Computing, 2020(1):8891002, 2020

  9. [9]

    Talking face generation with multilingual tts

    Hyoung-Kyu Song, Sang Hoon Woo, Junhyeok Lee, Seungmin Yang, Hyunjae Cho, Youseong Lee, Dongho Choi, and Kang-wook Kim. Talking face generation with multilingual tts. In Proceedings of the IEEE/CVF Conference on Computer Vision and Pattern Recognition, pages 21425–21430, 2022

  10. [10]

    Improving user experience of virtual health assistants: scoping review

    Rachel G Curtis, Bethany Bartel, Ty Ferguson, Henry T Blake, Celine Northcott, Rosa Virgara, and Carol A Maher. Improving user experience of virtual health assistants: scoping review. Journal of medical Internet research, 23(12):e31737, 2021

  11. [11]

    Chatanything: Facetime chat with llm-enhanced personas

    Yilin Zhao, Xinbin Yuan, Shanghua Gao, Zhijie Lin, Qibin Hou, Jiashi Feng, and Daquan Zhou. Chatanything: Facetime chat with llm-enhanced personas. arXiv preprint arXiv:2311.06772, 2023

  12. [12]

    Building llm-based ai agents in social virtual reality

    Hongyu Wan, Jinda Zhang, Abdulaziz Arif Suria, Bingsheng Yao, Dakuo Wang, Yvonne Coady, and Mirjana Prpa. Building llm-based ai agents in social virtual reality. In Extended Abstracts of the CHI Conference on Human Factors in Computing Systems, pages 1–7, 2024

  13. [13]

    Stylesync: High-fidelity generalized and personalized lip sync in style-based generator, 2023

    Jiazhi Guan, Zhanwang Zhang, Hang Zhou, Tianshu Hu, Kaisiyuan Wang, Dongliang He, Haocheng Feng, Jingtuo Liu, Errui Ding, Ziwei Liu, and Jingdong Wang. Stylesync: High-fidelity generalized and personalized lip sync in style-based generator, 2023

  14. [14]

    Echomimic: Lifelike audio-driven portrait animations through editable landmark conditioning, 2024

    Zhiyuan Chen, Jiajiong Cao, Zhiquan Chen, Yuming Li, and Chenguang Ma. Echomimic: Lifelike audio-driven portrait animations through editable landmark conditioning, 2024

  15. [15]

    Hallo: Hierarchical audio-driven visual synthesis for portrait image animation, 2024

    Mingwang Xu, Hui Li, Qingkun Su, Hanlin Shang, Liwei Zhang, Ce Liu, Jingdong Wang, Yao Yao, and Siyu zhu. Hallo: Hierarchical audio-driven visual synthesis for portrait image animation, 2024

  16. [16]

    Joyhallo: Digital human model for mandarin

    Sheng Shi, Xuyang Cao, Jun Zhao, and Guoxin Wang. Joyhallo: Digital human model for mandarin. arXiv preprint arXiv:2409.13268, 2024

  17. [17]

    Liveportrait: Efficient portrait animation with stitching and retargeting control

    Jianzhu Guo, Dingyun Zhang, Xiaoqiang Liu, Zhizhou Zhong, Yuan Zhang, Pengfei Wan, and Di Zhang. Liveportrait: Efficient portrait animation with stitching and retargeting control. arXiv preprint arXiv:2407.03168, 2024

  18. [18]

    A lip sync expert is all you need for speech to lip generation in the wild

    KR Prajwal, Rudrabha Mukhopadhyay, Vinay P Namboodiri, and CV Jawahar. A lip sync expert is all you need for speech to lip generation in the wild. In Proceedings of the 28th ACM international conference on multimedia, pages 484–492, 2020

  19. [19]

    Dinet: Deformation inpainting network for realistic face visually dubbing on high resolution video

    Zhimeng Zhang, Zhipeng Hu, Wenjin Deng, Changjie Fan, Tangjie Lv, and Yu Ding. Dinet: Deformation inpainting network for realistic face visually dubbing on high resolution video. In Proceedings of the AAAI Conference on Artificial Intelligence, volume 37, pages 3543–3551, 2023

  20. [20]

    Synctalkface: Talking face generation with precise lip-syncing via audio-lip memory

    Se Jin Park, Minsu Kim, Joanna Hong, Jeongsoo Choi, and Yong Man Ro. Synctalkface: Talking face generation with precise lip-syncing via audio-lip memory. In AAAI, pages 2062–2070. Association for the Advancement of Artificial Intelligence, 2022

  21. [21]

    Sadtalker: Learning realistic 3d motion coefficients for stylized audio-driven single image talking face animation

    Wenxuan Zhang, Xiaodong Cun, Xuan Wang, Yong Zhang, Xi Shen, Yu Guo, Ying Shan, and Fei Wang. Sadtalker: Learning realistic 3d motion coefficients for stylized audio-driven single image talking face animation. In CVPR, pages 8652–8661, 2023

  22. [22]

    DreamTalk: When Emotional Talking Head Generation Meets Diffusion Probabilistic Models,

    Yifeng Ma, Shiwei Zhang, Jiayu Wang, Xiang Wang, Yingya Zhang, and Zhidong Deng. Dreamtalk: When expressive talking head generation meets diffusion probabilistic models. arXiv preprint arXiv:2312.09767, 2023

  23. [23]

    VividTalk: One-Shot Audio-Driven Talking Head Generation Based on 3D Hybrid Prior,

    Xusen Sun, Longhao Zhang, Hao Zhu, Peng Zhang, Bang Zhang, Xinya Ji, Kangneng Zhou, Daiheng Gao, Liefeng Bo, and Xun Cao. Vividtalk: One-shot audio-driven talking head generation based on 3d hybrid prior. arXiv preprint arXiv:2312.01841, 2023

  24. [24]

    Moda: Mapping-once audio-driven portrait animation with dual attentions

    Yunfei Liu, Lijian Lin, Fei Yu, Changyin Zhou, and Yu Li. Moda: Mapping-once audio-driven portrait animation with dual attentions. In Proceedings of the IEEE/CVF International Conference on Computer Vision , pages 23020–23029, 2023

  25. [25]

    Hierarchical cross-modal talking face generation with dynamic pixel-wise loss

    Lele Chen, Ross K Maddox, Zhiyao Duan, and Chenliang Xu. Hierarchical cross-modal talking face generation with dynamic pixel-wise loss. In CVPR, pages 7832–7841, 2019

  26. [26]

    Neural voice puppetry: Audio-driven facial reenactment

    Justus Thies, Mohamed Elgharib, Ayush Tewari, Christian Theobalt, and Matthias Nießner. Neural voice puppetry: Audio-driven facial reenactment. In Computer Vision–ECCV 2020, pages 716–731. Springer, 2020. 10 JoyV ASA A PREPRINT

  27. [27]

    Audio-driven talking face video generation with learning-based personalized head pose, 2020

    Ran Yi, Zipeng Ye, Juyong Zhang, Hujun Bao, and Yong-Jin Liu. Audio-driven talking face video generation with learning-based personalized head pose, 2020

  28. [28]

    One-shot free-view neural talking-head synthesis for video conferencing

    Ting-Chun Wang, Arun Mallya, and Ming-Yu Liu. One-shot free-view neural talking-head synthesis for video conferencing. In Proceedings of the IEEE/CVF conference on computer vision and pattern recognition, pages 10039–10049, 2021

  29. [29]

    Pirenderer: Controllable portrait image generation via semantic neural rendering

    Yurui Ren, Ge Li, Yuanqi Chen, Thomas H Li, and Shan Liu. Pirenderer: Controllable portrait image generation via semantic neural rendering. In Proceedings of the IEEE/CVF international conference on computer vision, pages 13759–13768, 2021

  30. [30]

    V ASA-1: Lifelike Audio-Driven Talking Faces Generated in Real Time,

    Sicheng Xu, Guojun Chen, Yu-Xiao Guo, Jiaolong Yang, Chong Li, Zhenyu Zang, Yizhong Zhang, Xin Tong, and Baining Guo. Vasa-1: Lifelike audio-driven talking faces generated in real time. arXiv preprint arXiv:2404.10667, 2024

  31. [31]

    Megaportraits: One-shot megapixel neural head avatars

    Nikita Drobyshev, Jenya Chelishev, Taras Khakhulin, Aleksei Ivakhnenko, Victor Lempitsky, and Egor Zakharov. Megaportraits: One-shot megapixel neural head avatars. In Proceedings of the 30th ACM International Conference on Multimedia, pages 2663–2671, 2022

  32. [32]

    A morphable model for the synthesis of 3d faces

    V olker Blanz and Thomas Vetter. A morphable model for the synthesis of 3d faces. InSeminal Graphics Papers: Pushing the Boundaries, Volume 2, pages 157–164. 2023

  33. [33]

    Expression invariant 3d face recognition with a morphable model

    Brian Amberg, Reinhard Knothe, and Thomas Vetter. Expression invariant 3d face recognition with a morphable model. In 2008 IEEE International Conference on Automatic Face & Gesture Recognition, pages 1–6. IEEE, 2008

  34. [34]

    Learning a model of facial shape and expression from 4d scans

    Tianye Li, Timo Bolkart, Michael J Black, Hao Li, and Javier Romero. Learning a model of facial shape and expression from 4d scans. ACM Trans. Graph., 36(6):194–1, 2017

  35. [35]

    Disentangled representation learning for 3d face shape, 2019

    Zi-Hang Jiang, Qianyi Wu, Keyu Chen, and Juyong Zhang. Disentangled representation learning for 3d face shape, 2019

  36. [36]

    Emoportraits: Emotion-enhanced multimodal one-shot head avatars

    Nikita Drobyshev, Antoni Bigata Casademunt, Konstantinos V ougioukas, Zoe Landgraf, Stavros Petridis, and Maja Pantic. Emoportraits: Emotion-enhanced multimodal one-shot head avatars. In CVPR, pages 8498–8507, 2024

  37. [37]

    First order motion model for image animation

    Aliaksandr Siarohin, Stéphane Lathuilière, Sergey Tulyakov, Elisa Ricci, and Nicu Sebe. First order motion model for image animation. Advances in neural information processing systems, 32, 2019

  38. [38]

    wav2vec 2.0: A framework for self-supervised learning of speech representations

    Alexei Baevski, Yuhao Zhou, Abdelrahman Mohamed, and Michael Auli. wav2vec 2.0: A framework for self-supervised learning of speech representations. Advances in neural information processing systems, 33:12449– 12460, 2020

  39. [39]

    Capture, learning, and synthesis of 3d speaking styles

    Daniel Cudeiro, Timo Bolkart, Cassidy Laidlaw, Anurag Ranjan, and Michael J Black. Capture, learning, and synthesis of 3d speaking styles. In CVPR, pages 10101–10111, 2019

  40. [40]

    Diffposetalk: Speech-driven stylistic 3d facial animation and head pose generation via diffusion models

    Zhiyao Sun, Tian Lv, Sheng Ye, Matthieu Lin, Jenny Sheng, Yu-Hui Wen, Minjing Yu, and Yong-jin Liu. Diffposetalk: Speech-driven stylistic 3d facial animation and head pose generation via diffusion models. ACM Transactions on Graphics (TOG), 43(4):1–9, 2024

  41. [41]

    Flow-guided one-shot talking face generation with a high-resolution audio-visual dataset

    Zhimeng Zhang, Lincheng Li, Yu Ding, and Changjie Fan. Flow-guided one-shot talking face generation with a high-resolution audio-visual dataset. In CVPR, Jun 2021

  42. [42]

    Celebv-hq: A large-scale video facial attributes dataset

    Hao Zhu, Wayne Wu, Wentao Zhu, Liming Jiang, Siwei Tang, Li Zhang, Ziwei Liu, and Chen Change Loy. Celebv-hq: A large-scale video facial attributes dataset. In ECCV, pages 650–667. Springer, 2022

  43. [43]

    Q-Align: Teaching LMMs for Visual Scoring via Discrete Text-Defined Levels

    Haoning Wu, Zicheng Zhang, Weixia Zhang, Chaofeng Chen, Liang Liao, Chunyi Li, Yixuan Gao, Annan Wang, Erli Zhang, Wenxiu Sun, et al. Q-align: Teaching lmms for visual scoring via discrete text-defined levels. arXiv preprint arXiv:2312.17090, 2023

  44. [44]

    Out of time: Automated lip sync in the wild

    Joon Son Chung and Andrew Zisserman. Out of time: Automated lip sync in the wild. In ACCV Workshops, 2016

  45. [45]

    FVD: A new metric for video generation

    Thomas Unterthiner, Sjoerd van Steenkiste, Karol Kurach, Raphaël Marinier, Marcin Michalski, and Sylvain Gelly. FVD: A new metric for video generation. In Deep Generative Models for Highly Structured Data, ICLR 2019 Workshop, New Orleans, Louisiana, United States, May 6, 2019. OpenReview.net, 2019. 11