PolyU on Sark Xing

Poster at C&C '26!

Mon, 13 Jul 2026 00:00:00 +0000

I joined the 2026 ACM Conference on Creativity and Cognition as a poster, held at Central Saint Martins, University of the Arts London. The poster is CapSenseBand: Sustaining Cross-disciplinary Creativity when Stitches Must Meet Signals.

Opening

C&C ‘26 at UAL CSM.

Poster

CapSenseBand at C&C ‘26, UAL CSM.

Over the midday break I ran into other colleagues from PolyU Design, Jeffrey and Daniel. We talked for a long while, and I took a lot away from it.

Puffy into a Course and IJHCI!

Thu, 14 May 2026 00:00:00 +0000

Grounding Pedagogical Intents in Embodied AI Teachers: A Human-Centered Framework for Designing and Evaluating Instructional Gestures is online in the International Journal of Human-Computer Interaction. The reading copy, with figures, PDF, and BibTeX, is on the paper page.

This is how I turned my Pictorial work on Puffy into teaching content for Lai Wei’s pedagogical agent gesture design course.

The initial goal of this collaboration was to disseminate my work to a wider community within and beyond Design and let more students learn about it. That ultimately helped the work come to fruition and get published in IJHCI.

Two Journal Articles from the Emo-Sense Project Published!

Sat, 01 Jul 2023 00:00:00 +0000

EmoSense: a wearable technology, uses a three-layer mechanism to convert microgestures (MGs) into digital signals, apply machine learning for MG detection, and assess stress levels based on MG frequency; a pilot study with 16 participants confirms the correlation between stress and MG frequency, as well as the link between stress and other negative emotions.
Emo-MG Framework: achieves outstanding performance in emotion detection by comparing it to baseline and deep learning models.

BibTex

@article{fang2023emosense,
    title = {{{EmoSense}}: {{Revealing True Emotions Through Microgestures}}},
    author = {Fang, Le and Xing, Sark Pangrui and Long, Yonghao and Lee, Kun-Pyo and Wang, Stephen Jia},
    date = {2023},
    journaltitle = {Advanced Intelligent Systems},
    volume = {n/a},
    number = {n/a},
    pages = {2300050},
    doi = {10.1002/aisy.202300050},
    urldate = {2023-07-31},
    langid = {english}
}

BibTex

@article{fang2023emo,
    title = {Emo-{{MG}} Framework: {{LSTM-based}} Multi-Modal Emotion Detection throughElectroencephalography Signals and Micro Gestures},
    author = {Fang, Le and Xing, Sark Pangrui and Ma, Zhengtao and Zhang, Zhijie and Long, Yonghao and Lee, Kun-Pyo and Wang, Stephen Jia},
    date = {2023},
    journaltitle = {International Journal of Human–Computer Interaction},
    volume = {0},
    number = {0},
    eprint = {https://doi.org/10.1080/10447318.2023.2228983},
    pages = {1--17},
    publisher = {{Taylor \& Francis}},
    doi = {10.1080/10447318.2023.2228983}
}

TA for SD5514 Advanced Visualization and Interaction with Jeffrey Ho!

Wed, 22 Mar 2023 00:00:00 +0000

I’m a teaching assistant of SD5514 Advanced Visualization and Interaction with Jeffrey C. F. Ho for ‘23 spring!

The lecture is regarding tangible interaction and information presentation.

My role, as a teaching assistant, includes but not limited to

deliver the same material in two class sessions for different groups of students;
broaden their understanding of tangible interaction and information presentation.

SD5514

One of the two class sessions.

TEI'23 Pictorial Presented!

Wed, 01 Mar 2023 00:00:00 +0000

Our pictorial has been presented on ACM Tangible, Embedded, and Embodied Interaction (TEI) 2023! The preseation video is available on YouTube and the PDF is available on ACM DL.

BibTex

@inproceedings{xing2023puffy,
    title = {Puffy: {{A}} Step-by-Step Guide to Craft Bio-Inspired Artifacts with Interactive Materiality},
    booktitle = {Proceedings of the Seventeenth International Conference on Tangible, Embedded, and Embodied Interaction},
    author = {Xing, Sark Pangrui and Van Dijk, Bart and An, Pengcheng and Bruns, Miguel and Chuang, Yaliang and Wang, Stephen Jia},
    date = {2023},
    series = {{{TEI}} '23},
    pages = {1--14},
    publisher = {{Association for Computing Machinery}},
    doi = {10.1145/3569009.3572800},
    isbn = {978-1-4503-9977-7}
}

Puffy: A Step-by-step Guide to Craft Bio-inspired Artifacts with Interactive Materiality

Sun, 26 Feb 2023 00:00:00 +0000

Pictorial and talk page for Puffy, a bio-inspired artifact with a cilia-mimetic surface that expresses anthropomorphic qualities through shape changes.

TEI'23 Pictorial Accepted!

Fri, 25 Nov 2022 00:00:00 +0000

The Puffy pictorial gets accepted by ACM TEI ‘23 and will be presented in Warsaw, Poland (Feb 26 - Mar 1, 2023)! A preprint has now published on arXiv, and below you could find the details of the publication.

Fig. Email of Acceptance

BibTex

@misc{xing2022puffy,
    title={Puffy: A Step-by-step Guide to Craft Bio-inspired Artifacts with Interactive Materiality},
    author={Sark Pangrui Xing and Bart van Dijk and Pengcheng An and Miguel Bruns and Yaliang Chuang and Stephen Jia Wang},
    year={2022},
    eprint={2211.14746},
    archivePrefix={arXiv},
    primaryClass={cs.HC}
}

Preprint ACM TEI 2023 Website

Self-hosted OOCSI Deployed!

Wed, 03 Nov 2021 00:00:00 +0000

Available at oocsi.sarkxing.design!

As we shift from designing interactions with products to smart things, designs have started to involve prototyping with inter- and intra connectivity. To facilitate the design process for designers who might have little knowledge in networking, Dr Mathias Funk initiated and open-sourced a message-based communicating protocol namely OOCSI. It can be run on cross platforms/environments and has libraries or bindings for different languages (i.e., Processing, Java/Android, Python, REST, Websocket (Javascript), Arduino/ESP (C/C++)). With the support of these languages, OOCSI can be accessed on major platforms on either desktops (Windows, Mac, Linux), mobiles (iOS, Android) and embedded systems (Raspberry Pi, ESP, …). However, since the server that OOCSI runs on locates in Eindhoven NL, the physical distance, a few thousand kilometers away from Hong Kong, one single request-response could take up to 1000ms. To address that, I cloned and deployed the OOCSI-web repository on my Virtual Private Server (VPS), configuring with Tencent CDN to ensure global connectivity, particularly for mainland China visitors. The delay has significantly dropped down to 45ms!

1/4 Marathon in Hong Kong!

Sun, 24 Oct 2021 00:00:00 +0000

Brief

Nearly two-year postponement of the 1/4 Marathon Rotterdam 2020 due to Covid-19, the “#demooiste 40 jaar (the prettiest)” anniversary edition, was finally held in Oct 23&24, 2021 in Rotterdam, the Netherlands! However, I had left from the Netherlands for Hong Kong and wasn’t able to join the event in person. What a pity!

Luckily my good friend, Sami, locating in Kassel, Germany picked up the bib number for me! So I was able to wear it on my shirt and virtually attend the event. So sweet! See the image below. :p

First Reimbursement@PolyU!

Thu, 16 Sep 2021 00:00:00 +0000

Brief

All PolyU RPg students, irrespective of funding source, will be provided with Associated Money during the normal study period (with a reference amount of HK$20,000/year for full-time student) to support expenses for their studies and research activities.¹

I have owned an Apple Silicon MacBook Air, and expect to spend the associated money, as quoted above, for a monitor instead of buying an all-in-one computer device. As required by the department, I must provide strong justification for purchasing the proposed item.

TA for SD5969 Transformative Technologies with Stephen Wang!

Tue, 14 Sep 2021 00:00:00 +0000

I’m a teaching assistant of SD5969 Transformative Technologies with Prof. Stephen J. Wang for ‘21 fall Multimedia & Entertainment Technology (MSc)!

The lecture is regarding to use the cutting edge technologies to transform design concepts for the digital era. Specifically, students are required to use various sensing technologies to collect bodily data and representing them in novel, creative, and intriguing means.

My role, as a teaching assistant, includes but not limited to

PhD@PolyU SD Kick-off!

Mon, 30 Aug 2021 00:00:00 +0000

Today, I officially commenced my PhD study at The Hong Kong Polytechnic University, School of Design!

Jocky Club Innovation Tower

Building of the School of Design designed by Zaha Hadid!