The CHI’25 sustainability committee received many strong submissions for the Special Recognition for Sustainable Practice, and we are excited to announce the winners. As with last year, we recognized projects based on two tracks: (i) Research with Potential for Sustainable Impact and (ii) Research Teams with Inspirational Research Practices. For each category, a winner and runner-up were selected. Without further ado: 
For Research with Potential for Sustainable Impact:

• [Winner] How CO2STLY Is CHI? The Carbon Footprint of Generative AI in HCI Research and What We Should Do About It. Nanna Inie (IT University of Copenhagen), Jeanette Falk (Aalborg University), and Raghavendra Selvan (University of Copenhagen). Discusses the carbon footprint of generative AI in HCI research, calls for attention to how the recent GenAI trend in HCI research would impact the environment, and proposes best practices.

• [Runner-up] Sustainability, Development, and Human-Computer Interaction. Vishal Sharma (Georgia Institute of Technology) and Neha Kumar (Georgia Tech). This work embraces sustainability not only in its focus but also in its execution. From a broad vision, they uncover understandings, critiques, tensions, and considerations toward advancing scholarship at the intersections of sustainability, development, and HCI.

For Research Teams with Inspirational Research Practices:

• [Winner] Unlocking the Power of Speech: Game-Based Accent and Oral Communication Training for Immigrant English Language Learners via Large Language Models. Yijun Zhao (Zhejiang University), Jiangyu Pan (Zhejiang University), Jiacheng Cao (Zhejiang University), Jiarong Zhang (Zhejiang University), Yan Dong (Zhejiang University), Yicheng Wang (Zhejiang University), Preben Hansen (Stockholm University), and Guanyun Wang (Zhejiang University). To ensure broad accessibility on a range of hardware, this work uses Minecraft to build a “serious game” to help people learn English and discusses sustainable design choices in the execution of this work.

• [Runner-up] Layered Interactions: Exploring Non-Intrusive Digital Craftsmanship Design Through Lacquer Art Interfaces. Yan Dong (Tsinghua University), Hanjie Yu (Tsinghua University), Yanran Chen (Tsinghua University), Zipeng Zhang (Tsinghua University, and Wu Qiong (Tsinghua University. Infusing interactivity into traditional crafting, this work embodies making the old new again, demonstrates the power of interaction design, and provides a holistic perspective.

Congratulations to our winners and runner-up, and thank you to everyone who shared their work with us. If you wish to learn more about these projects, please look for them at CHI’25; the projects receiving these recognitions have also been indicated in the program.

Dear Authors,

Congratulations again on having your work accepted at CHI2025! This email is about your presentations, and if you are not the presenting author, please forward this email to the presenting authors. 

This year, we have an exciting and extensive program, with record numbers of technical contents across all tracks! Among them, Papers, Journals, Alt.chi, and Case studies will have oral presentations. While you might have done presentations at CHI, this year, we have a number of differences, so please read the instructions carefully to ensure a great presentation experience:

• To accommodate a record number of oral presentations, the time slot for each presentation is much shorter than previous years, which is 10 minutes for presentations and 2 minutes for Q&A and there will be a maximum number of 7 presentations in a 90-minute session.  
• This year, we have in-person and remote sessions, but both will be held on-site with in-person session chairs and audience. Remote sessions are for authors who cannot attend in-person to present remotely via Zoom to the on-site audience. 
• Remote attendees cannot join the session live via Zoom but could watch presentation videos asynchronously on the SIGCHI Conference Programmes progressive web application (PWA) and ask questions via PWA. 

As such, as a presenter, you should expect: 

• If you present in-person, it will be very much like previous in-person conferences. There will be an HDMI cable to connect with a project. Please ensure that you bring an adapter for HDMI.
• If you present remotely,  simply join the Zoom link, which you can find in the PWA, as you would for a regular online meeting to give your live presentation to an on-site audience. 

Here are the instructions for the presentation:

• Before the presentation, please use PWA to double-check the time/date.
  • For an in-person presentation, also double check the room of the session you are presenting. 
  • For a remote presentation, confirm the Zoom link given in the PWA for the allocated session. Only remote presenters in the session would be allowed to enter by the session chair or SVs during the session. 
• Arrive 20 min before the session starts, check in with your session chair, and test the presentations, leaving plenty of time to fix issues if any. 
  • For an in-person presentation, you will use your own laptop to connect to a projector via HDMI. Please ensure that you bring an adapter for HDMI. Please also bring a copy of your presentation on a USB drive as a backup.
    • There is a dedicated computer in each room to perform auto-captioning. Note that you cannot use that computer to connect to a projector.
  • For a remote presentation, make sure you can connect and present via the Zoom link, and please also have your presentation videos readily available as a backup in case of any technical issues. 
• Please finish within your allocated time which is 12 minutes in total, with 10 minutes for presentation and 2 minutes for Q&A.  If you do not stop and use up all the 12 minutes, there will be no time for Q&A, and you will be cut off by the session chair at the 12 minutes to allow the next presenter to set up
  • For an in-person presentation, pay attention to the session chair’s countdown signals, at the 3, 1, 0 minutes prior 10 minutes to give some time for Q&A.
  • If it is a remote presentation, you will be responsible for keeping track of your time and will also be cut off at the 12 minutes.
• As the time for Q&A in a session is very short this year, you are encouraged to make use of coffee or lunch breaks if you attend the conference in-person. Please also make sure of PWA to interact and carry on discussions, to compensate for the short Q&A time.

How to show your slides in the in-person meeting room

For in-person presenters:

An HDMI cable is on or around a presenter’s table, which is directly connected to a project in the meeting room. You must use this HDMI cable to connect your laptop to show your slides in the meeting room, which is very much like previous in-person conferences.

For remote presenters:

All presenters must join a Zoom meeting for their presentation. Presenters will share their screen on the Zoom meeting to show their slides, which is the same as other Zoom meetings. A laptop that is running Zoom Rooms (meetings) and is connected to a projector in the room, will show your slides via Zoom meetings. 

Even if you cannot connect to a project, please use another computer (e.g., ones owned by other presenting authors). It is a good practice to have a copy of your presentation material in your USB key.

We look forward to your presentations at CHI2025. If you have any questions, please let us know via tpc@chi2025.acm.org.

Koji Yatani and Sharon Ding

CHI2025 Technical Program Chairs

Venue

PACIFICO Yokohama North Yokohama, Japan
1-chōme-1-1 Minatomirai, Nishi Ward, Yokohama, Kanagawa 220-0012, Japan

CHI Registration Check-in
You will receive an email from info@eventstack.com with your registration QR code on Friday, April 25th. Bring this to the Registration Desk located in North 1F of the PACIFICO Yokohama to scan with the registration scanners for event check-in and pick up your badge.

Welcome

Whether it be in-person or online, we are excited to have you join CHI 2025!

Workshops will take place on April 26th and April 27th.

Courses and main conference content will occur from April 28th to May 1st.

Be sure to attend the Opening Plenary at National Hall on Monday, April 28th at 8:45 JST. National Hall is located on the southern end of the PACIFICO Yokohama complex and can be accessed via a pedestrian walkway from PACIFICO Yokohama North.

There is a lot of helpful information at https://chi2025.acm.org/ to help you plan your days either virtually (online) or in person at CHI.

Conference Program

The full conference program can be found on the Progressive Web App (PWA): https://programs.sigchi.org/chi/2025.

Attending CHI 2025 in-person in Yokohama

In-person CHI 2025 will take place at the PACIFICO Yokohama North, in Yokohama, Japan. CHI 2025 events are located all throughout the Center with registration check-in being placed in the main hall foyer.

Be sure to first check in at registration to get your CHI 2025 badge and bring your QR Code!

Registration Check-in and Hours

Check-in for your CHI badge early! Do so on Sunday to avoid long lines on Monday morning! Photo identification is required to check-in. Be sure to bring any kind of photo ID – passport, student ID, driver’s license, etc. – for registration check-in.

Registration and Badge Pick Up Hours Onsite

Saturday – 8:00 to 16:00
Sunday – 8:00 to 20:00
Monday – 7:00 to 19:00
Tuesday – 8:00 to 17:30
Wednesday – 8:30 to 16:00
Thursday – 8:30 to 11:00

We highly encourage you to pick up your badge Saturday or Sunday. Historically, we have seen long lines on Monday morning. We don’t want anyone to miss the Opening Plenary, so come get your badge early.

CHI Plushie Hours

CHI Plushies can only be purchased and picked up in Japan at the Merchandise counter located at Registration in North 1F. Shipping is not available for CHI Merchandise. If you are virtual, connect with a friend going to CHI in-person to have them purchase merchandise for you! Please note that CHI Plushies can only be purchased with a credit card. Merchandise is limited in availability.

All times listed below are in JST:
Tuesday – 10:30 to 16:00
Wednesday – 10:30 to 16:00

CHI Pavillion Hours (North 1F: G1-G8)

Monday, 28 April 18:00 – 20:00 (Welcome Reception)
Tuesday, 29 April 10:00 – 17:00 (Job Fair 15:40 – 16:20)
Wednesday, 30 April 10:00 – 17:00 (Job Fair 15:40 – 16:20)
Thursday, 1 May 10:00 – 12:00

Don’t Miss the Action in the CHI Pavilion!

Make sure to explore the CHI Pavilion, where you’ll find our amazing sponsors and exhibitors, plus Interactivity demos, posters, the Invited Talks Theatre, Global Plaza, SIGCHI Lounge, and much more!

Participating in the CHI Interactivity Demos?

You’ll need to complete the ACM demo participation waiver to take part. To save time on site and experience more demos, we strongly encourage you to fill it out in advance: https://forms.office.com/r/5RSsCwYh9Q

Attending CHI 2025 Virtually and In-Person

The Progressive Web App (PWA) – CHI Virtual Platform

The PWA is where all the content of the conference is available. It is also where you will officially ask questions. Please note that paper sessions are not streamed synchronously but the video presentations can be watched and discussed at any time by all attendees whether you are registered virtual or in-person. More information about the hybrid experience: https://chi2025.acm.org/for-attendees/hybrid-experience/

CHI Communication is on Discord!

Discord is used for General Discussions, e.g., general research discussions and social chatting during CHI 2025. It requires a personal account to log in. A personal account can be created for free at https://discord.com/. With this you can join the CHI 2025 Discord here: https://discord.gg/connect-at-CHI2025. Please note that the Hybrid Team will not be officially active on Discord until April 26th. If you are completely new to Discord – this is a helpful resource to get started: Beginner’s Guide to Discord

• Upon entering the Discord, please accept the Code of Conduct in #code-of-conduct, and message the CHI25 Bot with the email address used for registration to gain full access to all CHI 2025 channels. (A detailed walk-through to joining Discord can be found here: https://chi2025.acm.org/for-attendees/hybrid-experience/online-tools-used-in-chi-2025/)Ask any questions that you may have at the #help-desk channel regarding the hybrid experience or mail the hybrid chairs at hybrid@chi2025.acm.org
• The following channels are initially setup
  • #code-of-conduct (read this carefully)
  • #first-steps (guides you through the onboarding process)
  • #hybrid-faq (has some FAQ about the hybrid aspects of CHI)
  • #chi-lobby (open discussion floor)
  • #meeting-people-online (to connect with other remote attendees)
  • #meeting people-onsite (to connect with other on-site attendees)

If you want to ask questions regarding a particular paper or other content item, please use PWA, as outlined above.

Useful Information for CHI In-Person CHI Attendees

We are seeing historically high registration numbers for this year’s in-person conference, Here are some tips to make the most of your experience:

• If a session is too full, you are welcome to stand on the perimeter of the room
• All paper presentations have been pre-recorded and are available to watch on the PWA (see above)
• Engage with authors through PWA or Discord for questions you don’t get to ask in-person
• Keep accessibility-labeled seating available to those who need it
• Learn more about Japanese culture
  • Zen, yoga, and tea ceremonies are being offered for $12 each during the conference. Find more details here:
    https://chi2025.acm.org/travel/getting-around-yokohama/#culture
  • Tatami and calligraphy sessions are being offered during the opening reception on Monday night (no charge, first-come-first-served basis)
  • Kanna-kezuri (wood shaving) demonstration will be in the CHI pavilion during coffee breaks on Wednesday (no charge, first-come-first-served basis)
  • An origami booth will be set up in the CHI pavilion, available during all CHI Pavilion hours (no charge)
• Free Wi-Fi is available at the airport and CHI venue, but we recommend setting up mobile internet and installing a translation app to help with things like reading menus and asking for help.
• For easy travel, add a Suica, PASMO, or ICOCA card to your phone and charge it with ¥5,000–¥10,000. It works for most trains in Japan and even some stores.
• Some medications (e.g., ADHD or sleep aids) are restricted in Japan—check permit requirements here: https://www.mhlw.go.jp/english/policy/health-medical/pharmaceuticals/01.html

Any Help Needed? Contact:
chiregistration@executivevents.com

1-888-526-1242 USA/Canada Toll Free
1-303-530-4683 International Direct Dial

We look forward to seeing you all at CHI 2025!

Jaydon Farao, Thippaya Chintakovid, and Jordan Aiko Deja, CHI 2025 Global Plaza Chairs

In the conference’s recent editions, the CHI Conference organizers have introduced the Global Inclusion and Equity Initiative (also known as Global Plaza) to make the conference one step closer to being more welcoming to newcomers and inclusive to all. The organizers recognize that participants, especially those from the Global South, experience additional challenges and need extra support to join and participate with the broader CHI community. In this edition, Global Inclusion and Equity is even more emphasized, given the location of the conference.

In response to this, CHI 2025 Global Inclusion and Equity Chairs are partnering with the SIGCHI EC to create a space open to attendees that can host both the 2025 edition of Global Plaza and the SIGCHI Lounge.

We invite you to continue reading below to find out more about this initiative.

The success of the past Global Plazas

The CHI 2022 organizing committee aimed to make SIGCHI’s flagship conference more inclusive and equitable than ever before. To achieve this, they launched the Global Inclusion and Equity Initiative, led by Susan Dray, Annu Sible Prabhakar, Cuauhtemoc Rivera-Loaiza, Marisol Wong-Villacres, and Eiad Yafi, with the invaluable collaboration of Jones Yeboah. The initiative’s key outcome was the Global Plaza (GP) project, designed to create a space—both virtual and physical—for idea exchange and cross-collaboration among attendees.

We are now here to present the 2025 edition, themed “A Sanctuary of Connection and Purpose.” Reflecting the spirit of Yokohama, the Global Plaza serves as a welcoming space for collaboration and meaningful connections. It invites everyone to gather, explore, and share ideas in a warm, inclusive environment—a transformative portal to the conference experience. This year, it will happen alongside SIGCHI EC activities in a shared space with the SIGCHI Lounge.

What’s in store for this year

This year, we’re expanding the Global Inclusion and Equity Initiative with new features that enhance inclusivity across multiple aspects of the CHI conference—not just within the Global Plaza space. Our goal remains the same: to create a welcoming environment for those who need it most, particularly attendees from underrepresented backgrounds.

In addition, with the SIGCHI EC, we’re broadening our efforts to support people at all career stages and to recognize the diverse identities that shape our community. To foster meaningful connections and accessibility, we’ve curated a series of events for this edition, available both in-person and virtually.

Global Plaza Sessions

• Fireside chats with first-time authors.
• Behind the scenes of a paper from conception to publication.
• Conversations with SIGCHI executive members and researchers from other regions
• To ensure a very pleasant registration experience, we now have distinguished between Given Names and Preferred Names and giving registered participants the options of which to use especially on applicable documents (e.g. badge, invoices).
• An engaging experience that motivates participants to get to know as many people through the human bingo format. Watch out, we have a special guaranteed prize to the first two participants who will complete these.

SIGCHI Lounge Sessions

• Practitioners’ Corner to share insights, discuss challenges, and network with attendees, fostering collaboration between academia and practice in HCI.
• Peer Connect for meeting people from across the globe and knowing more about their projects and interests by connecting remote gatherings in various universities with in person attendees.
• Conferences AMA, where attendees can engage with the VP for Conferences, ask questions, and gain insights into conference planning and decision-making.
• Conferences Town Hall Follow-Up is a session where the VP and AC for Conferences address attendee questions, discuss key takeaways, and provide updates on conference-related topics.

The Shared Space as a Sanctuary

This year, the Global Plaza and the SIGCHI Lounge will be vibrant hubs of connection and engagement at the conference. This space will host multiple sessions, beginning after the exhibit openings on Monday and concluding before the Closing Keynote on Thursday.

When sessions are not in progress, the SIGCHI Lounge serves as a welcoming space for attendees to connect, reflect, and build meaningful relationships throughout the conference. Whether you seek structured discussions or informal conversations, these spaces offer a dynamic and inclusive environment for all.

Schedule of Sessions

Everyone at CHI is welcome to join these sessions. The sessions are hybrid, so even those who are not physically present can interact with in-person attendees during the sessions. Given that CHI 2025 is happening in Yokohama, Japan, we do our best to find the time zones that can best accommodate various groups across the globe.

More info on these sessions will be announced soon.

Call for collaboration in the Global Plaza

If you think you can help and have an interest in collaborating in the Global Plaza sanctuary, please reach out to us by signing up through this link for Global Plaza sessions: https://www.surveymonkey.com/r/F7WR5WX or contact us at global@chi2025.acm.org.

For more details about SIGCHI Lounge sessions, feel free to contact the SIGCHI EC at sigchi-4all@acm.org.

We would also appreciate it if you could help us spread the word about this blog post and the survey link above.

Join Us in Creating a Sanctuary of Connection

The Global Plaza and the SIGCHI Lounge are more than just a space—they are a refuge for meaningful interactions, a place where bridges are built and connections flourish. To make this sanctuary even more inclusive, we invite volunteers who share our vision of a globally connected CHI Conference.

Whether you’d like to welcome virtual attendees, spread the word about Global Plaza Sanctuary and the SIGCHI Lounge, lead sessions in your native language, or bring fresh ideas to enrich the experience, we and the SIGCHI EC would love to have you.

Author: Himanshu Verma (Analytics Chair)

Date: 2025-02-26

NB — The numbers might not always work out here, there are missing data from the analyses due to conflicts.

This blog post covers outcomes from the CHI 2025 Program Committee (PC) meeting, which took place from the 13-15th January 2025.

After the first round of reviews, 1,969 submissions were invited to submit revisions. Of these invited submissions, 1,933 were resubmitted. External reviewers and Associate Chairs (ACs) asynchronously reviewed and discussed these revised submissions and made individual binary accept/reject decisions. Submissions were then discussed in subcommittees at the PC meeting, where final accept/reject decisions were made. Please refer to the previous blog post for an analysis of the submissions after the first round of reviews.

Acceptance Rates By Subcommittee

Submissions to the CHI Papers track are made to one of eighteen subcommittees. These subcommittees have a topic focus (e.g., Health, Design, User Experience). In our previous blog post, we discussed submission rates and the distribution of first-round rejections (X1) and revise and resubmits (RR). The final range of acceptance rates were between 18.4% (Games & Play) and 32% (Specific Application Areas). Figure 1 shows the acceptance rates for each subcommittee.

Figure 1: Acceptance rates by subcommittee for CHI 2025 papers.

If we further examine the acceptance rates across the subcommittees, we see that the Games & Play subcommittee had the lowest acceptance rate of 18.4%, followed by User Experience (19%) and Computational Interaction (21%). Furthermore, Accessibility (30.8%), Critical Computing (31.1%), and Specific Application Areas (32%) had the highest acceptance rates. Table 1 provides an overview of the number of submissions and the respective acceptance rates for the various subcommittees.

Table 1: Overall acceptance rates by subcommittee, ordered by acceptance rates.

Primary Subcommittee	# Accepted Submissions	# Submissions	% Acceptance
Games & Play	30	163	18.4
User Experience	62	326	19.0
Computational Interaction	61	291	21.0
Design	80	372	21.5
Health	80	351	22.8
Understanding People (Mixed)	62	256	24.2
Understanding People (Quant)	78	318	24.5
Visualization	46	188	24.5
Interacting with Devices	81	328	24.7
Learning	85	343	24.8
Interaction Beyond the Individual	47	184	25.5
Understanding People (Qual)	85	324	26.2
Privacy	62	234	26.5
Blending Interaction	90	331	27.2
Developing Novel Devices	34	122	27.9
Accessibility	100	325	30.8
Critical Computing	83	267	31.1
Specific Applications	82	256	32.0

Next, considering the completed revised and resubmitted papers, Figure 2 shows the number of submissions in each subcommittee that were either conditionally accepted (A2) or rejected (X2).

Figure 2: Number of revised and resubmitted submissions in each subcommittee with decision for CHI 2025.

Figure 3 and Table 2 below show the analysis for the revised and resubmitted (R&R) articles along with the decision, i.e., conditional acceptance (A2) and rejection (X2), across the different subcommittees. The lowest acceptance rates for R&R were within the Games & Play (51.7%), Privacy (58.5%), and User Experience (58.5%) subcommittees. However, the highest acceptance rates for R&R were within the Visualization (70.8%), Understanding People (Qualitative) (71.4%), and Specific Application Areas (77.4%) subcommittees.

Figure 3: Acceptance rates by subcommittee when considering only revised and resubmitted papers for CHI 2025.

Table 2: Acceptance rates by subcommittee when considering only revised and resubmitted papers for CHI 2025, ordered by acceptance rates.

Primary Subcommittee	# Conditional Accepts	# Rejects	% Acceptance
Games & Play	30	28	51.72
Privacy	62	44	58.49
User Experience	62	44	58.49
Developing Novel Devices	34	23	59.65
Design	80	53	60.15
Interacting with Devices	81	53	60.45
Blending Interaction	90	53	62.94
Understanding People (Quant)	78	44	63.93
Learning	85	47	64.39
Accessibility	100	51	66.23
Computational Interaction	61	31	66.30
Understanding People (Mixed)	63	31	67.02
Health	80	39	67.23
Interaction Beyond the Individual	47	21	69.12
Critical Computing	83	36	69.75
Visualization	46	19	70.77
Understanding People (Qual)	85	34	71.43
Specific Applications	82	24	77.36

Reviewer Recommendations

Each paper in the CHI Papers track receives recommendations from reviewers (including 1AC, 2AC, and external reviewers). Although these recommendations may resemble scores, they are not actually scores. As a result, we cannot analyze the mean scores for different submissions. However, we can examine the mix of recommendations received for each submission and visualize how they correlate with the final decision. In particular, do all accepted papers have a “clean sweep” of recommendations for acceptance? Or, what is the mix of recommendations for rejected submissions? Figure 4 visualizes these patterns for revised and resubmitted (R&R) submissions that received final recommendations—as either accept or reject—from four reviewers.

Figure 4: Cumulative reviewer recommendations for papers invited to revise and resubmit to CHI 2025 that received four recommendations.

Not all revised and resubmitted papers received four recommendations from four reviewers (1AC, 2AC, and two external reviewers), including (a) 11 submissions that received two final recommendations, (b) 135 submissions that received three final recommendations, (c) 137 submissions that received five final recommendations, and (d) 2 submissions that received six final recommendations. Figure 5 illustrates the distribution of reviewer recommendations for papers that received five recommendations for the revised and resubmitted papers. These submissions correspond to cases where a 3AC was brought in to assist in decision making or when a conflict arose. Moreover, Table 3 highlights submissions (which were revised and resubmitted) that did not receive four reviewer recommendations.

Figure 5: Cumulative reviewer recommendations for papers invited to revise and resubmit to CHI 2025 that received five recommendations. These submissions correspond to cases where a 3AC was brought in to assist in decision making or when a conflict arose.

Table 3: Reviewer recommendation counts for papers invited to revise and resubmit to CHI 2025 that did not receive four recommendations.

Decision	# Accept Recommendations	# Reject Recommendations	Total # Recommendations	# Submissions
Accept	3	0	3	94
Reject	2	3	5	50
Reject	1	4	5	33
Reject	0	3	3	29
Accept	4	1	5	23
Reject	0	5	5	13
Accept	3	2	5	9
Accept	2	1	3	8
Accept	2	0	2	7
Accept	5	0	5	7
Reject	0	2	2	4
Reject	1	2	3	4
Reject	3	2	5	2
Reject	0	6	6	1
Reject	3	3	6	1