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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Dennis Kao @professorkao.bsky.social · 20/06/2025

You have a great set of…. labels…🤭

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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 · 12/06/2025

Montreal allows its seniors to travel for free, via any mode (bus, metro, river taxi, paratransit, etc.) in the central part of the city (Zone A)... www.stm.info/en/info/fare...

stm.info

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Dennis Kao @professorkao.bsky.social · 21/05/2025

Oh yeah... my R is a bit rusty, but looking forward to it!!

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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 · 03/05/2025

Thanks Brittany! Actually your approach is more impressive... I thought it would be easier (& efficient). So most days, I just duplicated the dashboard, swapped the chart & revised the title/description.

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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 · 01/05/2025

This is my first election as a Canadian citizen... Are there rules about taking down signs after the election? Barbara Bal signs everywhere...

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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

Thanks Brittany! Such a great little technique & I really love how compact the bar chart is. I thought the vertical labeling was a nice touch... it might be handy or helpful especially if someone starts adding a 3rd or even a 4th bar to the mix... 😉

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

No idea.😅 It could be a function of greater awareness, improved diagnosis, population growth, changes in school inclusion policies, etc. Interestingly, if you look at all special education enrollment, about 50% remain unidentified for a specific exceptionality... so the # might be higher

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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 · 27/04/2025

Thanks Kit! I generally use Tableau to do my data visualizations... You're right... The survey asks about their level (scale of 0-10) of meaning or purpose in life. But in my mind, there might be some overlap, so I was just using it as a proxy for "boredom." I also considered using "loneliness"...

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

A tile world map AND pie charts... very risky... 😅

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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

Thanks Morgan! Great catch! I forgot to fix the range across the three groups... They probably should be... they are now.

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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 · 22/04/2025

That's right... the information is drawn form the Canadian Social Survey

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

Inspired by Nir Smilga's viz and blog "Small Multiples with Grayed Out Categories" smilganir.medium.com/small-multip...

smilganir.medium.com

Small multiples with grayed out categories

Background

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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

That would be interesting... I'm not sure... I'm still a bit new to accessing Stats Can data. And the tables I used just distinguished "urban" and "rural" areas.

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

Thanks Nisse! Stats Can defines "rural" as any area outside a "census Metropolitan Area" (> 100K, aka urban) and a "census agglomeration" (> 10K, aka suburb)...

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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 · 21/04/2025

That makes sense! Thanks for the feedback!

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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

Thanks Cedric! It means a lot!

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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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