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Posts by Krista Fischer

Hmm… mul sihuke asi suht tavaline. Või siis ajab koer üles mingi 3:30 ja pärast und ei tule.

2 weeks ago 1 0 0 0
Venn diagram illustration of set relations for two sets: intersection, union, symmetric difference, relative and absolute complement

Venn diagram illustration of set relations for two sets: intersection, union, symmetric difference, relative and absolute complement

Cheeky plaque celebrating John Venn in Cambridge. Two overlapping circles, one labeled "Mathematician, Philosopher & Anglican priest", the other labeled "Really strong beard game", with "John Venn" in the intersection.

Cheeky plaque celebrating John Venn in Cambridge. Two overlapping circles, one labeled "Mathematician, Philosopher & Anglican priest", the other labeled "Really strong beard game", with "John Venn" in the intersection.

Venn diagram showing the components of a good visualization: Information, story, goal, visual form and their intersections.
From: Information is Beautiful

Venn diagram showing the components of a good visualization: Information, story, goal, visual form and their intersections. From: Information is Beautiful

B/W photo of John Venn with a long scraggly beard

B/W photo of John Venn with a long scraggly beard

#TodayinHistory #dataviz #Onthisday #OTD 📊
💀 Apr 04, 1923 John Venn died in Cambridge, England 🇬🇧

1880: Developed the eponymous Venn diagrams to represent logical relationships

2 weeks ago 12 3 2 1

Näidake mulle teismelist, kes tahaks igapäevaselt tundide viisi oma vanematega suhelda.

2 months ago 10 0 1 0

NB! The Estonian doctoral school will support the participation of PhD students and academic staff from Estonian universities.

2 months ago 1 0 0 0
SPE Tartu 2026

Need to boost your epidemiology & stats skills in R? Join "Statistical Practice in Epidemiology using R" at the University of Tartu, Estonia, June 1–5, 2026. More info: bendixcarstensen.com/SPE/ (By the way: early June is probably the most beautiful time to visit Estonia)

2 months ago 1 1 1 0
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Dr. Gladys West, Mathematician Whose Work Made GPS Possible, Dies at 95 ALEXANDRIA, VA — Dr. Gladys West, the pioneering mathematician whose work laid the foundation for modern GPS technology, has died. She passed away

Dr. Gladys West, the pioneering mathematician whose work laid the foundation for modern GPS technology, has died. She was 95.

3 months ago 27237 9604 550 501

Between
what I think,
what I want to say,
what I believe I say,
what I actually say,
what you want to hear,
what you believe you hear,
what you really hear,
what you want to understand,
what you believe you understand,
what you actually understand,

there are 10 possibilities for us to have diffi...

3 months ago 2 1 1 0
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Kui majaomanik peab lükkama, siis on nii nagu Tartus täna.

3 months ago 1 0 1 0

Seal ei tasu liiga sügavalt järgi mõelda. Iseenesest ei ole
teravilja koristamine ka elava taime kahjustamine, sest kõrs on kuivanud ja küps seeme kukuks ise ka välja. Aga pigem tundub sellise agenda moodi, et üritatakse võimalikult vähe Maa ressursse tarbida ja inimkond vaikselt välja suretada.

3 months ago 1 0 0 0
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Tore lugemine. “Kui Frodo poleks riske võtnud, oleks Sauron maailma hävitanud ning „Sõrmuste isand“ oleks üks ütlemata igav raamat.”

3 months ago 2 0 0 0

Et kui mehed sellisel moel käituvad, siis süüdi on ikka naised ise… et nad kohe politseile avaldust ei tee?

4 months ago 7 0 1 0
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Putukakalender 2026 | Kirjastus Lugu ja lumm 2026. aasta putukakalender pakub lihtsat ilu, mida Loodus on loonud lihtsa mustri ja väheste värvidega. Kalendrisse on lisatud valik putukatega seotud folkloori maailma rahvastelt.

Kui tundub et mõnel sõbral on just üks putukakalender puudu, siis siit saab: lugujalumm.ee/toode/putuka... (Urmas Tartese pildid). Mina juba mõned tellisin, väga ilusad pildid.

4 months ago 4 2 1 0

Sugu on inimesel dokumendis, seda on enamikel juhtudel lihtne tuvastada. Rahvusega on keerulisem, mõni ei oska iseenda rahvust ka määratleda. Milleks sellist ebamäärast asja raporteerida?

4 months ago 5 0 2 0

Sellest on raamatuidki kirjutatud. David Lodge “Small world”/“Väike maailm” (on eesti keelde tõlgitud). Soovitan lugeda.

4 months ago 2 0 1 0

Pigem panen tähele, et mallukas on 17.kohal, aga esimene teadlane (TA president) 45. kohal. Üldsegi vaid paar teadlast kogu nimekirjas (on EKA rektor, aga puudub TÜ rektor).

4 months ago 24 2 2 0

Kui mõjukust arvestada selle järgi, et mitu inimest üle maailma temast kuulnud on, siis Pärt on kindlasti esikohal.

4 months ago 3 0 1 0
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17 October: Conference “150 Years of Data Visualisation in Tartu: A Tribute to Wilhelm Lexis” The conference on 17 October marks the 150th anniversary of the publication of a landmark work in statistics, demography, and data visualisation.

The Lexis conference is already tomorrow (also a Zoom option available). math.ut.ee/en/WLconfere...

6 months ago 2 0 0 0

Autokool on kasulik asi kindlasti, aga niigi tihedasse gümnaasiumiprogrammi lisades tuleks ta ju millegi muu arvelt. Mida me siis vähemaks võtame - matemaatikat, eesti keelt, ajalugu? Las see jääda ikkagi vaba aja ettevõtmiseks, gümnaasiumi ajal või ka pärast seda.

6 months ago 4 0 1 0

Seevastu Keskerakonna Tartu programmis on, et autokool võiks olla osa gümnaasiumiorogrammist…Huvitav kas nad noortelt ka küsisid?

6 months ago 9 0 4 0
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17 October: Conference “150 Years of Data Visualisation in Tartu: A Tribute to Wilhelm Lexis” The conference on 17 October marks the 150th anniversary of the publication of a landmark work in statistics, demography, and data visualisation.

Do you know that Wilhelm Lexis published his "Introduction to the Theory of Population Statistics", containing the famous Lexis diagram, 150 years ago, while working at Tartu University? We are organizing a small conference to celebrate: math.ut.ee/en/WLconfere...

6 months ago 7 0 0 0

"The ideal subject of totalitarian rule is not the convinced Nazi or the dedicated communist, but people for whom the distinction between fact and fiction, true and false, no longer exists." - Hannah Arendt

6 months ago 50 13 2 0

Oxfordi teadlaste arvutatud meetmete indeksi järgi olid suurem osa ajast (v.a 2020 märts-aprill) Eesti meetmed Rootsi omadest leebemad.

8 months ago 7 0 0 0

Hint: what would you conclude if you leave out the yellow group? Or keep just the blue group of cities?

8 months ago 4 0 0 0
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A graph used by our minister of finance to support his claim that expensive food prices are caused (!) by too much retail space (Tallinn). I will use that example in my statistics classes on causal inference.

8 months ago 9 2 2 0

Tartus pool tundi :)

8 months ago 0 0 0 0

Alumise graafiku punase ja rohelise joone võrdlus ei päde, sest punasel on päevased maksimumid, rohelisel päevaste maksimumide mediaan pika aja jooksul. Punase joone võiks siis ka juba asendada 2003-2023 päevaste maksimumide mediaaniga. (Punase joone võrdlus halli ribaga on aga pädev küll. )

8 months ago 5 0 0 0
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In 1875, when his book with Lexis diagram was published (Introduction to the Theory of Population Statistics) he worked at the University of Dorpat, that is now Tartu University, Estonia - that was 150 years ago!

9 months ago 1 0 0 0
Diagram showing the idea behind the lexis diagram. A grid of Age by Year showing diagonals of Cohort

Diagram showing the idea behind the lexis diagram. A grid of Age by Year showing diagonals of Cohort

Schematic diagram of a Lexis Diagram. Y axis is Age, X is calendar year. A blue diagonal gives the cohort of people born in a given year over time.

Schematic diagram of a Lexis Diagram. Y axis is Age, X is calendar year. A blue diagonal gives the cohort of people born in a given year over time.

Photo of Wilhelm Lexis

Photo of Wilhelm Lexis

#TodayinHistory #dataviz #Onthisday #OTD 📊
🎂Jul 17, 1837 Wilhelm Lexis born in Eschweilier, Germany 🇩🇪

1875: The Lexis diagram, showing relations among age (cohort), calendar time, and life spans of individuals simultaneously. Makes ALL key demographics visible

9 months ago 6 1 1 0

Ainuke kord kui laulupeo ajal päike päriselt välja tuli korraks, oli ühe kõige religioossema laulu ajal (“Oh Aadam sino essitus”). Usklik inimene võiks hoopis selles mingit märki näha. Aga noh, deemonid ja põrgu on ju põnevamad.

9 months ago 9 0 0 0

Ja mis point on valimistel, kus valime oma huve esindavad poliitikud, kes aga ei hakka ise juhtima, vaid määravad apoliitilise valitsuse?

9 months ago 12 0 3 0