iiinova — where your digital self keeps evolving

Dennis Kao @professorkao.bsky.social · 22/09/2025

Arrrrr.... Happy belated #InternationalTalkLikeAPirateDay, which was this past Friday... ☠️ Link: public.tableau.com/app/profile/...

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Reposted by Dennis Kao

Katie Mack @astrokatie.com · 19/06/2025

Chatbots — LLMs — do not know facts and are not designed to be able to accurately answer factual questions. They are designed to find and mimic patterns of words, probabilistically. When they’re “right” it’s because correct things are often written down, so those patterns are frequent. That’s all.

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Dennis Kao @professorkao.bsky.social · 11/05/2025

Happy #AAPIHeritageMonth & #AsianHeritageMonth! Here's my viz for this week's #MakeoverMonday & #APITug project, highlighting the prevalence of Asian restaurants and cuisine in the US. #TableauPublic 🔗: public.tableau.com/app/profile/...

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Dennis Kao @professorkao.bsky.social · 08/05/2025

As we near summer, one of the things I always look forward to are the music festivals! So I've updated my viz "Blues and Jazz Festivals of Canada", showcasing almost 40 festivals across the country... Link: tabsoft.co/3EHnjYT Happy Festival-ing!!!! 🎶 🎺 🍻

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Dennis Kao @professorkao.bsky.social · 02/05/2025

#30DayChartChallenge 2025... it's a wrap! 30 days... 30 visualizations... At some point, I hope to share some of my reflections... but for now, thank you for all your support! 🙏 Congrats to all of the participants! It was great seeing all of your work! Link: public.tableau.com/app/profile/...

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Dennis Kao @professorkao.bsky.social · 30/04/2025

#30DayChartChallenge Day 30 National Geographic I love NG... and re: maps, NG is the gold standard! I decided to redo my "Penguins of Antarctica" viz/map and hope I do NG justice... Feedback always appreciated! Link: public.tableau.com/app/profile/...

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Dennis Kao @professorkao.bsky.social · 29/04/2025

#30DayChartChallenge Day 29 Extraterrestrial Had a bit of fun with this one... here's my "crop circle" chart highlighting some findings from the Sky Canada Report... 🛸 Let me know what you think! 🙏 Link: public.tableau.com/app/profile/...

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Dennis Kao @professorkao.bsky.social · 28/04/2025

Can't believe it's almost over... #30DayChartChallenge Day 28 Inclusion The theme made me think of the special education field... so here's my viz, highlighting the increase in autistic students enrolled in Ontario schools. Feedback always appreciated! Link: public.tableau.com/app/profile/...

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Dennis Kao @professorkao.bsky.social · 27/04/2025

#30DayChartChallenge Day 27 Noise Naturally, I thought of one of my favorite noise rock bands in the 80s & 90s, The Jesus and Mary Chain... ... and decided to visualize the MIDI data of their song, Head On. 🤘 Link: public.tableau.com/app/profile/...

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Dennis Kao @professorkao.bsky.social · 26/04/2025

#30DayChartChallenge Day 26 Monochrome Really leaned into today's theme... In 2024, 20% of Canadians expressed a lack of purpose or meaning in life (or in other words, were "bored"). So here's a bar chart... Feedback always appreciated! Link: public.tableau.com/app/profile/...

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Dennis Kao @professorkao.bsky.social · 25/04/2025

#30DayChartChallenge Day 25 Risk Each year, an average of 4,000 Canadians die by suicide... and the risk for men is about 3 times higher than women. Help is available... Speak with someone today! #StarttheConversation #EndTheStigma Link: public.tableau.com/app/profile/...

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Dennis Kao @professorkao.bsky.social · 25/04/2025

#30DayChartChallenge Day 24 World Health Organization Here's my viz, looking at unmet medical care needs among seniors in the European Union. I went with a sort-of small multiples/heat map hybrid... Let me know if it works... feedback always appreciated!🙏 Link: public.tableau.com/app/profile/...

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Dennis Kao @professorkao.bsky.social · 23/04/2025

#30DayChartChallenge Day 23 Log Scale Learned log scale in school years ago, but TBH, I don't really know how to use or interpret it 😅 But here you go... a simple viz of COVID cases in Ontario from Jan 2020 to June 2024. Feedback always appreciated! 🙏 Link: public.tableau.com/app/profile/...

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Dennis Kao @professorkao.bsky.social · 22/04/2025

#30DayChartChallenge Day 22 Stars Here's a fun visualization highlighting the 8 Canadians who have won the Oscar for acting... Feedback always appreciated!🙏 Link: public.tableau.com/app/profile/...

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Dennis Kao @professorkao.bsky.social · 21/04/2025

#30DayChartChallenge Day 21 Fossils Here's my viz looking at average gas prices in Canada from 2020 to the present... Feedback always appreciated! 🙏 Link: public.tableau.com/app/profile/...

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Dennis Kao @professorkao.bsky.social · 21/04/2025

#30DayChartChallenge Day 20 Urbanization I designed a visualization, i.e. a dumbbell chart, looking at the urban-rural differences in quality of life among Canadians. Feedback always appreciated! 🙏 Link: public.tableau.com/app/profile/...

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Dennis Kao @professorkao.bsky.social · 20/04/2025

#30DayChartChallenge Day 19 Smooth A bit late... I designed a visualization showing the poverty rates for Canada's major cities from 2015 to 2022. Feedback always appreciated! 🙏 Link: public.tableau.com/app/profile/...

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Dennis Kao @professorkao.bsky.social · 19/04/2025

#30DayChartChallenge Day 18 El País The charts I found on El País seemed simple & clean... Following this approach, here's my viz highlighting the issue of "hidden homelessness" which impacted over 1.7 million Canadians in 2022. Feedback appreciated!🙏 Link: public.tableau.com/app/profile/...

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Dennis Kao @professorkao.bsky.social · 17/04/2025

#30DayChartChallenge Day 17 Birds I was planning to wait until next Friday, April 25th, which is WORLD PENGUIN DAY... but given the prompt, here's my viz of the estimated 44 million penguins living around Antarctica. Feedback always appreciated! 🙏 Link: public.tableau.com/app/profile/...

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Dennis Kao @professorkao.bsky.social · 16/04/2025

#30DayChartChallenge Day 16 Negative I created a simple chart visualizing the daily minimum temperatures in Ottawa this year. It's been a bit cold this past winter (and spring)... Feedback always appreciated! 🙏 Link: public.tableau.com/app/profile/...

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Dennis Kao @professorkao.bsky.social · 15/04/2025

#30DayChartChallenge Day 15 Complicated My viz touches upon the difficult topic of death, but an issue with significant implications for public health and health care. Feedback always appreciated 🙏 Link: public.tableau.com/app/profile/...

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Dennis Kao @professorkao.bsky.social · 14/04/2025

#30DayChartChallenge Day 14 Kinships My viz touches on the issue of sandwich caregiving. In 2020, 1.8 million Canadians were "sandwiched" between providing care to both an care-dependent adult & their children. Feedback always appreciated!🙏 Link: public.tableau.com/app/profile/...

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Dennis Kao @professorkao.bsky.social · 13/04/2025

#30DayChartChallenge Day 13 Clusters My viz looks at the networks of immigrants to Canada, which can look different based on the age they immigrated to the country. Tried to be a bit more creative this time... 😅 Feedback always appreicated! 🙏 Link: public.tableau.com/app/profile/...

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Dennis Kao @professorkao.bsky.social · 12/04/2025

#30DayChartChallenge Data 12 Data.gov I visualized the # of people (pedestrians, car, train, or bus) crossing the border from Canada into the US since the 1990s. Definitely coming back to this, when more 2025 data is available.😁 Feedback appreciated!🙏 Link: public.tableau.com/app/profile/...

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Dennis Kao @professorkao.bsky.social · 11/04/2025

#30DayChartChallenge Day 11 Stripes I was thinking climate stripes, but also unwittingly thought of the old striped prison uniforms. So I created a simple visualization highlight the overrepresentation of Indigenous people in Canada's corrections system. Link: public.tableau.com/app/profile/...

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Dennis Kao @professorkao.bsky.social · 10/04/2025

#30DayChartChallenge Day 10 Multimodal I designed a simple bar chart that highlights the pool of refugees waiting to be resettled in Canada each year, based on data from the United Nations Refugee Agency (UNHCR). Feedback always appreciated! 🙏 Link: public.tableau.com/app/profile/...

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Dennis Kao @professorkao.bsky.social · 09/04/2025

#30DayChartChallenge Day 9 (Diverging) Here's a diverging chart on the self-reported health of Canadian seniors, based the Commonwealth Fund's 2021 International Health Policy Survey of Older Adults Feedback always appreciated! 🙏 Link: public.tableau.com/app/profile/...

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Dennis Kao @professorkao.bsky.social · 08/04/2025

Starting to run out of steam... For Day 8 of the #30DayChartChallenge (histograms), here's a quick viz of the age distributions of Ontario, Canada from 2000 to 2024. And for a bit of "splash," I highlighted the modes.😅 Feedback always appreciated! 🙏 Link: public.tableau.com/app/profile/...

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Dennis Kao @professorkao.bsky.social · 08/04/2025

#30DayChartChallenge Day 7 Outliers (1 week done!) Here's a chart visualizing the IMDB ratings (& outliers) for one of my favorite food shows, Kodoku No Gurume (or Solitary Gourmet), about a Japanese businessman looking for the next place to eat. Link: public.tableau.com/app/profile/...

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Dennis Kao @professorkao.bsky.social · 07/04/2025

#30DayChartChallenge Day 6 Florence Nightingale A bit late... but here's a simple coxcomb or "rose" chart comparing the availability of long-term care (LTC) beds in Canada, by province/territory. Feedback always appreciated!🙏 Link: public.tableau.com/app/profile/...

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Dennis Kao @professorkao.bsky.social · 05/04/2025

#30DayChartChallenge Day 5 Ranking I designed a bump chart showing Canada's top 10 immigrant populations, by country of birth, from 2001 to 2021. Thanks @flerlagekev.bsky.social for the curvy bump chart template!!! Feedback also appreciated! 🙏 Link: public.tableau.com/app/profile/...

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Dennis Kao @professorkao.bsky.social · 04/04/2025

#30DayChartChallenge Day 4 Big or Small Today's theme made me think of population pyramids for some reason...😅 so I visualized them for Canada & its provinces & territories, based on #StatsCan 2024 population estimates. Feedback always appreciated!🙏 Link: public.tableau.com/app/profile/...

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Dennis Kao @professorkao.bsky.social · 03/04/2025

#30DayChartChallenge Day 3 Circular Here's a Voronoi chart (a circular one 😅) visualizing what social workers do, ranging from working with individuals ("micro") to working at the community, organizational, or policy levels ("macro). Link: public.tableau.com/app/profile/...

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Dennis Kao @professorkao.bsky.social · 02/04/2025

#30DayChartChallenge Day 2 Slope Canada's racialized population more than doubled from 3.9M to 8.9M between 2001 & 2021. I designed a slope chart that breaks down this change by visible minority groups, highlighting the 5 largest groups in 2021. Link: public.tableau.com/app/profile/...

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Dennis Kao @professorkao.bsky.social · 01/04/2025

#30DayChartChallenge Day 1 Fractions Not committing whatsoever, but here's a quick waffle chart commemorating #WorldBipolarDay (March 30)... Bipolar disorder affects ~700K or 2.1% of Canadians aged 15+ & is one of the leading causes of disability. Link: public.tableau.com/app/profile/...

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Dennis Kao @professorkao.bsky.social · 14/03/2025

Grateful & honored that 4 of my visualizations/maps are longlisted for the Data Visualization Society's Information is Beautiful 2024 Awards... and to be included among such amazing work! Thank you so much! 😁 #IIBAwards Check out the showcase! www.informationisbeautifulawards.com/showcase?act...

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Dennis Kao @professorkao.bsky.social · 29/01/2025

Happy Lunar New Year!!! And here's a quick new map of the "snake-like" Panlong Ancient Road with its over 600 hairpin turns... Tools: @tableaupublic.bsky.social @qgis.fosstodon.org.ap.brid.gy Data: @openstreetmap.bsky.social Link to workbook: tabsoft.co/42ycPZj

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Dennis Kao @professorkao.bsky.social · 17/01/2025

My Tableau (Mapping) Journey visualized... Thanks everyone for all of your support over the past 4+ years. 🙏 Tools: #TableauPublic @figma.com Stream Graph Tool: @ladataviz.com Link to workbook: tabsoft.co/3DY0405

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Dennis Kao @professorkao.bsky.social · 03/01/2025

No... I'm not at all bummed that I'm not going to Hawaii with my family today... and oh, here's another map! 🥴 Tools: #TableauPublic (design/visualization), #QGIS (data prep) Data: OpenStreetMap, State of Hawaii Link: public.tableau.com/app/profile/...

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Dennis Kao @professorkao.bsky.social · 12/12/2024

A bit late, but December 1st represented my four-year Tableau anniversary. It's been quite the journey... thank you #DataFam for all your support! 🙏 My first viz... Dec 1, 2020: public.tableau.com/app/profile/... And my last... Nov 24, 2024: public.tableau.com/app/profile/...

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Dennis Kao @professorkao.bsky.social · 25/11/2024

My wife & daughter will be going to Hawaii early Jan, but I can't go...😢 So I'm planning to live vicariously through creating a few maps😅 Here's the 1st map, featuring the elevation & mountain peaks of Oahu... Link: tabsoft.co/4fG9U4F Feedback always appreciated!🙏

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Dennis Kao @professorkao.bsky.social · 22/11/2024

Honored to share my latest #VizforSocialGood, highlighting the amazing work of the Association for the Prevention of Torture to track the world's progress in torture prevention since the UN's 1984 Commission Against Torture. #TableauPublic link: tabsoft.co/4fVGTS4 Feedback always appreciated!🙏

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Reposted by Dennis Kao

Nicole Mark (she/her) @nicoledesignsdata.com · 10/11/2024

An open letter to the Tableau community nicolemark.medium.com/an-open-lett...

nicolemark.medium.com

An open letter to the Tableau community

Dear #DataFam,

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Dennis Kao @professorkao.bsky.social · 05/11/2024

I'm so excited & honored to be speaking at next week's Delhi Tableau User Group mtg, about my perpetual pursuit of "mappiness"😄🗺️ Date: Thursday, Nov 14th To register & join virtually: usergroups.tableau.com/events/detai... And of course, that means another map!😅 LMKWYT! tabsoft.co/3NWwObw

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Dennis Kao @professorkao.bsky.social · 31/10/2024

Here's my #IronViz 2025 entry featuring a show about a businessman wandering the neighborhoods of Japan, looking for his next meal... Kodoku No Gurume / Solitary Gourmet 😋 Link to interactive version: tabsoft.co/3C7nYVO #TableauPublic #DataPlusTV

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Dennis Kao @professorkao.bsky.social · 11/10/2024

Tonight... outside our front door 🤩

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