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Fórum ktorého cieľom je agregácia správ a vedeckých článkov o neduhoch digitálneho veku ako napr.

- kyberšikana (cyber-bullying)
- závislosť na počítačoch, smartphonoch, sociálnych sieťach atď.
- digitálna demencia, digitálna anorexia atď.
- vplyv používania digitálnych technológií na fyzické (napr. deformacia muskulatúry, poškodenie zraku atď.) či psychické (depresie, štiepenie osobnosti, samovražedné sklony) zdravie jednotlivca

Mnohé z informácií z tohto fóra pravdepodobne využijem pri mojej profesúre v oblasti Digitálneho Vzdelávania. Z tohto dôvodu sú obzvlášť vítané príspevky tématizujúce vyššie vymenované neduhy vo vzťahu k deťom, adolescentom resp. študentom.

Vďaka za pomoc

Link 1: https://www.childrenssociety.org.uk/cyberbullying-inquiry

Link 2: https://cyberpsychology.eu/

 pht      26.02.2019 - 10:37:18 [5K] , level: 1, UP   NEW

je tam tolko vystiznej 2019 temnoty ze neviem co vypichnut

 evad      26.02.2019 - 23:15:56 , level: 2, UP   NEW
je to hrozne

 chaplin      26.02.2019 - 11:21:36 (modif: 26.02.2019 - 11:23:50), level: 2, UP   NEW !!CONTENT CHANGED!!
po praci v korporate je toto dreamjob, dufam ze dobre platia
edit: prachy nic moc, no

 lazyShepherd      08.02.2019 - 11:54:34 (modif: 08.02.2019 - 11:56:53), level: 1, UP   NEW  HARDLINK !!CONTENT CHANGED!!

Napad nepovolit mobil v case ked rodina ide spat sa mi celkom pozdava.

Ak to patri inam ... dajte vediet.

~ What a time to be alive... ~

 pht      23.01.2019 - 22:41:54 (modif: 23.01.2019 - 22:42:49) [4K] , level: 1, UP   NEW !!CONTENT CHANGED!!


1/ Lemme do a 1-slide presentation since I'm feeling job sick. Title: How to Actually Manage Attention Without Smashing Your Phone and Retreating to a Log Cabin

2/ Premise: FOMO is good. Being plugged in is good. There is valuable info at all levels from twitter gossip to philosophy books. You should stay plugged in. You can manage anxiety and beat the House without resorting to shaming social platforms into managing attention for you. That's a terrible yielding of agency.

3/ Inspiration from 2 sources: The famous quote "small minds discuss people, average minds discuss events, great minds discuss ideas" ( = y axis) and Richard Hamming's idea of scheduling "Great Thoughts" calendar time in You and Your Research

4/ What the "unplug for self-care" crowd doesn't get is that you are part of a Giant Social Computer in the Cloud (GSCITC) computing the future. The level and latency at which you consume information and act on it determines your "job" in the social computer. Your shitposting and FOMO are functional.

5/ The reason the unplugging doesn't work for most people is not that the Evil Platform Companies are trying to hack your attention and turn you into a helpless addict (though they are) but because you rationally realize you need a job in the GSCITC.

6/ If you don't manage your information economy career, you will default to the lowest-level job in the social computer: processing very low-latency information with small-minded cognition (bottom left) for small bets. It's the equivalent of low-level bug reporting/testing.

7/ This isn't a bad thing. A big groupmind composed of lots of small minds doing small-minded cognition can compute very profound things. It's just that your individual role in it is small. You can't see past the "people" and "events" level implications, but the emergent GSCITC can. Still, you can and should aspire to more.

8/ The way to manage your attention is not to "unplug" or do some sort of bullshit Classical Liberal virtue signaling crap of "I only read Ancient Greek authors" but to be sensitive to your current mind size (small to great) and consciously target the zone you want to be in, moving fluidly between small/great mind.

9/ There are THREE ways to fail at this: a) Thinking you can be Great Minded all the time. b) Trying to be Great Minded purely on a low-latency information diet (upper-left red box) c) Trying to consume a high-latency information diet without aspiring to more than small-minded thoughts (lower-right red box)

10/ The first failure mode manifests as trying to consume only information at your target level. Like only reading The Economist and journal papers, and trying to produce only in institutional modes. This will fail. You need some information diet input from ALL levels to work at ANY level

11/ The second failure mode manifests as trying to have Great Thoughts on a diet of pure low-latency live information (upper-left red box). This failure mode is common among people who take the investing/seeking-alpha (signal to bet on that hasn't already been priced in by markets) attitude to information too literally.

12/ The final failure mode is trying to keep up with all the information at all latencies at a small-minded level (lower-right red box) Reading every trending tweet and every bestselling big history book and everything in between, but ALL at the same small-minded level (ie as people gossip or play-by-play event tracking). Unsustainable.

13/ Each failure mode is an information diet that leads to patterns of betting that fail to deliver a positive return long-term. It's not addictive FOMOing that kills you, but not being able to translate the information consumption/production choices you're making into winning bets.

14/ The stable consumption/production positions are along what I've labeled the turnpike (a term borrowed from economics). You can move focus up and down along the turnpike. Higher latency requires higher abstraction levels/bigger minds to extract value. Get off the turnpike and your bad returns will start to kill you.

15/ Trying to "float" your attention at a focused point on the turnpike rather than distributing attention all along it is the other way to fail. It's better than being off the turnpike entirely, but still not sustainable.

16/ The danger in executing this turnpike roadmap strategy is that your mind-level might choose you rather than you choosing your mind-level. If you choose to be small-minded today, that's good. If you find you are always small-minded and can't ever break up into mediocre, that's bad. So is always being great-minded and never being able to break downwards.

17/ This is a bit like weight training. You have to increase the weights slowly and perhaps train your attention to exhaustion a bit. If you're in small mind zone and can only consume/produce tweets, try an essay. See how far you get. Strength-train attention from 10s to 10min.

18/ You can and should go the other way as well. If you can only read big philosophy books by dead people and processing the chaotic churn of a Toxic Day on Twitter is too much for you, try handling it for 15 minutes, then an hour. Try posting instead of just reading. This is like low-weights/high-volume endurance training. Harder than it looks.

19/ Note that this atrophying of attention and latency limits will happen REGARDLESS of whether evil designers are trying to hack your attention and keep you phase-locked into their preferred 10s latency information loop. Their designs are in fact the LOAD you're training against

20/ The fact of the matter is that information distribution has become free/cheap, so the firehose is going to have flows at all timescales, time constants, and abstraction levels no matter what designers and advertisers want or don't want. It's the information firehose itself that's creating this environment not evil designers.

21/ Blaming/shaming platform UX designers is giving them way too much credit. There's just too much actual information being put out there at too high a rate, and you do in fact have meaningful access to almost all of it.

22/ There is of course a time, place, and role for unplugging from information flows entirely, and doing whatever low/zero information refractory period activity you prefer to recover, from domestic blissing to meditation. Not shown on graph.

23/ But while that has a role to play in mental health, make no mistake: you do need a job in the giant social computer, and that involves consuming and acting on information at all levels on the turnpike, in a time-bound, temporally constrained way.

24/ The idea of a profane/secular "temporal" plane and a sacred/religious timeless/eternal plane is a medieval idea invented to justify the power of powerful intercessionary religious orgs. Don't reproduce that bad pattern.

25/ LONG before the digital media companies tried to pwn your attention by overloading it at difficult latency ranges, religious institutions tried to pwn you by suckering you into checking out of "temporal" matters by labeling them sinful/profane or whatever. This is utter bs.

26/ That is in fact the original attention hack: powerful religious leaders telling smart people to check out and unplug from information flows. That way, they get the power.

27/ If you think about it, it is very shady indeed that you're supposed to meditate on low-actionable-information information streams like a flickering candle. Good start, and a necessary part of attention training. But if you stay there, you're playing someone else's game.

28/ This game is based on the opposite fear to FOMO which I call FOBO. If FOMO is Fear of Missing Out, FOBO is Fear Of Being Ordinary. What do I mean by that and why is retreating from digital information streams a mark of FOBO?

29/ When you are plugged into the GSCITC, you are part of a great computational fluidization of human cognition. You're just one instance in a liquid cloud of human intelligence, your thoughts entangled with those of others in a giant ongoing computation. It's a kind of computational civic duty, like voting. Sometimes it is fun, other times it is not, but it always important.

30/ This fluidization is a different emergent social phenomenon from the homogenization achieved by Organization Man corporations. Instead of being a faceless interchangeable part, you are a unique entangled particle in a quantum soup.

31/ The cost though is that even if your contributions are unique and your personal payoff makes it worthwhile if you do it right, the one thing the liquid cloud can't offer you is individual recognition. You are an ordinary Borg drone even if you are not interchangeable.

32/ No matter how brilliant the output of the collective intelligence/group mind -- and at its best Twitter in particular can be sublime in its sum-greater-than-parts output -- there is no easy way to disentangle and proudly claim your contribution to the distributed computation.

33/ Trying to claim credit for your part is a not-even-wrong thing to try. This is why ironically adding a joke trademark™ symbol to evocative turns of phrase is a thing on social media. This and other behaviors are early markers of how we're adapting to being incorporated into the GSCITC hive mind.

34/ The GSCITC is not a homogenizer of effort or imagination, but it IS a homogenizer of egos and identities. What you do counts. Who you are doesn't. You are an ordinary part of an extraordinary process.

35/ This is the heart of FOBO. Fear of Being Ordinary. Fear of being just another entangled particle in the GSCITC. Fear of your ego dissolving into the collective ego. Fear of having "nothing to show" for playing a part, despite it being sustainable.

36/ Waldenponding, I strongly suspect, is driven more by FOBO and ego-attachment than by any real fear of having your mind, productive potential, and rewards destroyed by "hacked attention."

37/ Personally, I can attribute more than half my income in the last few years to being strongly plugged in all the time, so rewards certainly didn't suffer. Half my good ideas for writing came from being plugged in, so neither did productive potential. And I don't think I'm any dumber for having been plugged in. About 42% smarter in fact.

38/ Sure, the challenge of managing the stress and anxiety is high, but then, so is the corresponding kind of stress working inside a traditional organization. There is no reason to expect the stress on your "free" attention to be lower than on your industrially organized attention.

39/ If you are a genius who rises to Level 25 Omega Super Adept in a monastery in the mountains, who knows everything there is to know about candle flames, that's kinda... very convenient for the Pope and the King. Smart person out of the way in a log cabin learning Candleology out of FOBO.

40/ A real adept oughta be able to meditate on the angriest, most toxic twitter stream, consume the bile, and turn it into nectar: actionable insight you can bet on in the real world.

41/ A real adept ought to have strength-trained attention so they can spend an hour either reading a tweetstream or a once-in-a-generation history-disrupting philosophy book. No hack designer or advertiser should be able to lock them down in the 0.1-10 second range.

42/ So stop blaming the media platforms for your own wallowing in small-minded twitter gossip about people. Strength train to the point where you decide whether to be there or elsewhere. May the FOMO be with you, and may you have the strength to resist FOBO.

43/ If, after recognizing the yin-yang dynamic of FOMO and FOBO, and the fact that both getting entangled in information flows and retreating from them are behaviors that can be pwned by others, you still want to do a bit of Waldenponding that is fine.

44/ Whether you choose a Soft or Hard Waldenponding, and whether you choose it as an occasional break or a regularly scheduled retreat, just recognize that it is not a self-evidently more "moral" attitude then getting your mind all dirty and entangled in the "toxic" information streams.

45/ We are all now part of a powerful global social computer in the cloud that is possibly the only mechanism we have available to tackle the big problems of the world that industrial age mechanisms are failing to cope with. We might as well get good at it. Do your part. Stay as plugged in as you can.

 dno      01.12.2018 - 20:12:42 (modif: 01.12.2018 - 20:13:37) [10K] , level: 1, UP   NEW  HARDLINK !!CONTENT CHANGED!!


 evad      22.11.2018 - 15:38:05 (modif: 22.11.2018 - 16:26:06) [17K] , level: 1, UP   NEW  HARDLINK !!CONTENT CHANGED!!
pokial si to sledoval pozorne, mohol si si vsimnut, ze ide o system (socialnych) odmien, inak stary dobry behaviorizmus revisited - presnejsie operantne podmienovanie - Skinner. proste v online soc sietach mas lajky, kacka, followy atd, co su instantne odmeny (dopamin, pocit stastia), a tie najviac funguju, ked su udelovane nie vzdy po kazdej reakcii na podnet, ale iba obcas, ked je tam nejaka nepredvidatelnost. point je, ze jednak tych odmien dostavame nepomerne viac, nez bolo normalne v zivote pred internetom a taktiez ich pridel je scasti podmieneny tym, ako su dane systemy naprogramovane.

v irl socialnej interakcii jednak nemas tolko odmien (ok obcas ta niekto pochvali, niekto sa na teba usmeje, niekto ta zavola von, vyzna ti lasku a pod), lebo udelit lajk alebo dat kacko je ovela jednoduchsie ako niekomu zavolat alebo s niekym irl rozpravat a najst dovod pre ktory ho mozno napr pochvalit. a hlavne vies to ovela lepsie kontrolovat.

proste soc siete nam davaju ovela vacsiu davku odmien nez irl interakcie a v patterne ktory podnecuje zavislost (podobne ako hracie automaty). vytvara tzv "short term feedback loops". v tom je obrovsky rozdiel oproti irl.

... a to este nehovorime o tom mnozstve ludi, ktori boli od detstva deprivovani v zmysle nedostatku uznania (odmien) od svojho najblizsieho okolia. tato skupina nie je mala a je extremne zranitelna, vyslovene bazi po uznani...

e: typo

e2: mozno to chce male doplnenie ako tomu rozumiem v zmysle operantneho podmienovania:

Podnet - je celkove nasa pritomnost na soc sieti, plus vidime ako ostatni dostavaju odmeny
Reakcia na podnet - su nase prispevky, statusy, fotky apod
Odmena - su kacka, lajky atd
tzv "spevnenie" - znamena zvysena pravdepodobnost reakcie na podnet, nastava vtedy, ak dostaneme odmenu, pricom silnejsie spevnenie nastava pri nepravidelnych odmenach
"short term feedback loop" - je vlastne cely tento kolobeh: cim viac sme na soc sieti, tym viac vidime ako ostatni dostavaju odmeny, produkujeme viac vlastnych reakcii a tiez (obcas) dostavame odmeny, a tym viac sme na socialnej sieti

Dalej sem este vstupuje aj fenomen zastupneho spevnenia - staci ze vidime ako su ostatni za nieco odmeneni a aj to spevnuje nase reakcie

 Prospero      16.11.2018 - 11:44:02 (modif: 16.11.2018 - 12:03:20) [8K] , level: 1, UP   NEW !!CONTENT CHANGED!!
Someone or something or some combination of people and things is using YouTube to systematically frighten, traumatise, and abuse children, automatically and at scale, and it forces me to question my own beliefs about the internet, at every level.

A friend who works in digital video described to me what it would take to make something like this: a small studio of people (half a dozen, maybe more) making high volumes of low quality content to reap ad revenue by tripping certain requirements of the system (length in particular seems to be a factor). According to my friend, online kids’ content is one of the few alternative ways of making money from 3D animation because the aesthetic standards are lower and independent production can profit through scale. It uses existing and easily available content (such as character models and motion-capture libraries) and it can be repeated and revised endlessly and mostly meaninglessly because the algorithms don’t discriminate — and neither do the kids.

These videos, wherever they are made, however they come to be made, and whatever their conscious intention (i.e. to accumulate ad revenue) are feeding upon a system which was consciously intended to show videos to children for profit. The unconsciously-generated, emergent outcomes of that are all over the place.

To expose children to this content is abuse. We’re not talking about the debatable but undoubtedly real effects of film or videogame violence on teenagers, or the effects of pornography or extreme images on young minds, which were alluded to in my opening description of my own teenage internet use. Those are important debates, but they’re not what is being discussed here. What we’re talking about is very young children, effectively from birth, being deliberately targeted with content which will traumatise and disturb them, via networks which are extremely vulnerable to exactly this form of abuse. It’s not about trolls, but about a kind of violence inherent in the combination of digital systems and capitalist incentives. It’s down to that level of the metal.

This, I think, is my point: The system is complicit in the abuse.

And right now, right here, YouTube and Google are complicit in that system.

a este jeden k teme, tiez riadne peklicko: https://www.nytimes.com/2017/11/04/business/media/youtube-kids-paw-patrol.html

 psycho      16.11.2018 - 23:29:31 , level: 2, UP   NEW
nechapem, ake videa su abuse? ani v clanku som nenasiel vysvetlenie aky typ videi udajne traumatizuje

videl som akurat nejaky kusok videa kde bola zena prezlecena za elzu a muz za spidermana a robili uplne nahodne cinnosti a ze toto deti pozeraju lebo tam nieco hladaju - cim to je zle?

akoze videl som rodicov ktori daju ipad s youtubom 4-rocnemu decku a cely den ho nechaju pozerat na to, a to decko aj bolo trosku mentalne zaostale, ale nerozumiem preco by to mala byt chyba videi, ved ak to niekoho bavi tak nech to pozera, ja by som to prikladal chybe rodicov ze nerozvijaju dieta a nechaju ho to pozerat, ale to je opat problem ze aj takito rodicia su mentalne zaostali ludia, tak je prirodzene ze nechaju aj deti stavat sa zaostalymi, ale akoze hadzat vinu na videa? nechapem (ale mozno mi v clanku uslo nieco s cim by som suhlasil)

 ulkas      16.11.2018 - 20:25:30 , level: 2, UP   NEW
toto bolo veli aktualne pred rokom. vtedy sa to vo velkom riesilo.

viem, ze youtube potom trosku pomenil filtre a zacal vela toho uplne uleteneho kontentu mazat (injekcna striekacka do tehotnej frozen kralovnej atd), ale niektore veci mu stale nejdu (napriklad miesanie postav a roznych svetov - hulk so supermanom a tlapkovou patrolou).
osobne mozem povedat, ze je to teraz uz lepsie, ale cert nikdy nespi a neustale exploituju moznosti.

napriklad co som ja odpozoroval, je ze frcia domace vide3a - ako sa deti hraju, ako sa doma strielaju tymi nerf pistolami, ako si doma skladaju lego, alebo poskakuju deti prezlecene za opice. lenze, tento kontent, hoci urcite lepsi nez autogenerovane sracky, je tiez dost blby - napriklad ak sa tam decka biju o hracky, pripadne tie skakajuce opice si zacnu robit zle. na toto ziaden filter nepomoze. treba len pekne sediet s edtmi za tym youtubom, a hned vysvetlovat. lebo moze byt aj cele 20min video fajn, ale v jednom momente tam bude scenka. a pokial za tym tiez nesedis 20min plnych, tak nemozes vediet, co si z toho dieta vezme a ako sa zacne spravat.

 ziman      16.11.2018 - 20:12:45 , level: 2, UP   NEW
uff, mega clanok

 ziman      16.11.2018 - 20:16:01 [3K] , level: 3, UP   NEW
What concerns me is not just the violence being done to children here, although that concerns me deeply. What concerns me is that this is just one aspect of a kind of infrastructural violence being done to all of us, all of the time, and we’re still struggling to find a way to even talk about it, to describe its mechanisms and its actions and its effects.

 Prospero      21.09.2018 - 11:42:36 [5K] , level: 1, UP   NEW
Abstract: The use of electronic media has increased substantially and is already observable in
young children. The present study explored associations of preschoolers’ use of electronic media
with age, gender, and socio-economic status, investigated time trends, and examined reciprocal
longitudinal relations between children’s use of electronic media and their behavioral difficulties. The study participants included 527 German two- to six-year-old children whose parents had provided information on their use of electronic media and their behavioral difficulties at two time points, with approximately 12 months between baseline and follow-up. The analyses revealed that older vs. younger children, as well as children from families with a lower vs. higher socio-economic status, were more often reported to use electronic media. Furthermore, the usage of mobile phones increased significantly between 2011 and 2016. Most interestingly, baseline usage of computer/Internet predicted more emotional and conduct problems at follow-up, and baseline usage of mobile phones was associated with more conduct problems and hyperactivity or inattention at follow-up. Peer relationship problems at baseline, on the other hand, increased the likelihood of using computer/Internet and mobile phones at follow-up. The findings indicate that preschoolers’ use of electronic media, especially newer media such as computer/Internet and mobile phones, and their behavioral difficulties are mutually related over time.

 Prospero      21.09.2018 - 13:24:36 , level: 2, UP   NEW
pre tých čo nemajú čas to čítať celé odporúčam najmä tabulku 2 na strane 7, dosť mazec

 mitb      21.09.2018 - 14:15:08 [3K] , level: 3, UP   NEW
stale sa imho mozno spytat, ci ta skodlivost spociva priamo v digitalnych mediach, alebo su digitalne media skor prejavom hlbsieho problemu. priamo napisem, ze osamely clovek, pripadne clovek, ktory sa citi neakceptovany, niekde na spodku spolocenskej hierarchie, takyto clovek trpi stresom a ma tendenciu sa spravat sposobom, ktory jeho problemy prehlbuje, do toho patria spomenute emocne problemy, alebo telesny stav trvaleho stresu.
napriklad, kedy necha rodic svoje dieta dlhodobo s tabletom? ked nan nema cas, alebo chut, ergo dava mu najavo, ze ho vylucuje z hry, ktoru prave hra. preco su mozno mladi chlapci na zaciatku puberty nachylnejsi k zavislosti na hrach? pretoze ich rovesnicky ich odmietaju, sucasne hry im davaju uspokojenie.

 Prospero      19.09.2018 - 15:59:49 , level: 1, UP   NEW
Children are experiencing an increase in sedentary lifestyle as a result of the rising utilization of technology, i.e. smartphones. With the prolonged use of smartphones, increased concerns have been raised regarding constant neck flexion, neck movements limitation, and decreases in pulmonary function due to potential changes in spinal posture. Therefore, the purpose of this research thesis was to evaluate changes in craniovertebral angles (CVA), cervical range of motion (ROM), and pulmonary function among boys and girls 8 to 13 years of age who use smartphones. A cross-sectional study was conducted on a sample of 50 participants (24 boys and 26 girls) with mean age 10.5±1.6 years and mean body mass index (BMI) 18.6±3.0 kg/m2. Participants were assigned to 2 groups based on their scores on the Smartphone Addiction Scale Short Version for Adolescents (SAS-SV): addicted group (score > 32, n=32) and non-addicted group (score ≤ to 32, n=18). The CVA was measured to evaluate the changes in the cervical spine. Forced vital capacity (FVC), forced expiratory volume in 1 second (FEV1), ratio of forced expiratory volume in 1 second to forced vital capacity (FEV1/FVC), and peak expiratory flow (PEF) were measured to evaluate pulmonary function. Maximal voluntary ventilation (MVV), maximum inspiratory pressures (MIP), and maximum expiratory pressures (MEP) were measured to assess respiratory muscles’ strength. A significant difference in CVA measures was found between both groups; girls (p=0.02) and boys (p=0.03). Cervical ROM in extension was limited in addicted boys (p=0.04). Also, in addicted boys, FVC and FEV1 were significantly lower (p=0.04 and p=0.05 respectively). FEV6% showed a significant lower value in addicted boys, compared to non-addicted boys (p=0.02). While addicted girls had significantly lower values in MIP when compared to non-addicted girls (p=0.05). We conclude that frequent use of smartphones could negatively affect cervical posture, as well as respiratory biomechanics among boys and girls. Pulmonary dysfunction has found to be associated with FHP as a result of constant neck flexion while viewing the phone. Therefore, education on proper posture while using the smartphone and education on the effects of prolonged usage of smartphones are necessary to preserve craniocervical function.

 Prospero      28.08.2018 - 14:26:08 [15K] , level: 1, UP   NEW
Our smartphones enable—and encourage—constant connection to information, entertainment, and each other. They put the world at our fingertips, and rarely leave our sides. Although these devices have immense potential to improve welfare, their persistent presence may come at a cognitive cost. In this research, we test the “brain drain” hypothesis that the mere presence of one’s own smartphone may occupy limited-capacity cognitive resources, thereby leaving fewer resources available for other tasks and undercutting cognitive performance. Results from two experiments indicate that even when people are successful at maintaining sustained attention—as when avoiding the temptation to check their phones—the mere presence of these devices reduces available cognitive capacity. Moreover, these cognitive costs are highest for those highest in smartphone dependence. We conclude by discussing the practical implications of this smartphone-induced brain drain for consumer decision-making and consumer welfare.

binary riot
 binary riot      30.08.2018 - 14:38:22 (modif: 30.08.2018 - 14:38:56), level: 2, UP   NEW !!CONTENT CHANGED!!
hej citalal som to davnejsie, odvtedy telefon vzdy odkladam a obcas o tejto study poviem aj druhej strane stylom ze "Hey, interesting fact, ..." :)

 kybu      30.08.2018 - 13:16:38 (modif: 30.08.2018 - 13:19:01) [1K] , level: 2, UP   NEW !!CONTENT CHANGED!!
Neviem, ci je to velmi relevantne, ale ja som zistil, ze mam podstatne mensie nutkanie pozerat na mobil odkedy mam hodinky prepojene s mobilom, ktore vibruju, ked pride nejaka notifikacia.

 orwin      29.08.2018 - 12:40:06 [4K] , level: 2, UP   NEW
Pre ludi co publikuju bar charty s odseknutou y-osou je urcite v pekle specialne miesto

 urza      05.09.2018 - 15:35:22 [1K] , level: 3, UP   NEW

 Prospero      30.08.2018 - 12:20:48 (modif: 30.08.2018 - 12:29:21), level: 3, UP   NEW !!CONTENT CHANGED!!
Príspevok aký si napísal môže napísať len človek ktorý nemá úplne jasno o tom, ako sa v modernej vede vyhodnocujú výsledky experimentov. A systém "nahodím dáta do tabuliek, vygenerujem stĺpčeky či koláčiky a očkom porovnám" to nieje.

Pre modernú vedu je kľúčové niečo, čo sa volá štatistika. Možno si už o tom počul, niekedy to spominaju aj osvietenejší novinári. Nuž a v drvivej väčšine štatistických testov nieje dôležité, resp. hrá len sekundárnu rolu, aký veľký (v absolútnych či relatívnych číslach) je nárast či pokles, ale či je onen pokles tzv. štatisticky signifikantný. To jest, či možno dôveryhodne tvrdiť, že jedna premenenná (napr. pritomnost smartphonu na Tvojom pracovnom stole) vplýva na druhú premennú (kapacita pracovnej pamate Tvojej mysle).

A práve o tom sú v tom všetky tie slovíčka ako ANOVA, p-hodnota, pair-wise test. Tie sú skutočnými výsledkami toho článku, a nie "náhľady" o bar chartoch s odseknutou y-osovou hodné excelového experta a la Rišo Sulík.

Odporúčam začať tu: https://cs.wikipedia.org/wiki/P-hodnota a svoj názor na "ľudí čo publikujú bar charty s odseknutou y-osou" zásadne skorigovať. Keď už z nijakého iného dôvodu tak preto, že je úplne, ale úplne mimo.

 orwin      03.09.2018 - 12:30:53 [7K] , level: 4, UP   NEW
Prepac, ale jedine k comu som sa vyjadril bola spominana vizualizacia dat, ktora je minimalne velmi zavadzajuca. Mozem ti tiez odporucit nejaku literaturu, pre pripad ze by si mal chut nastudovat si o tejto teme nieco viac. Zacal by som uplnou klasikou Edward Tufte - The Visual Display of Quantitative Information. Konkretne odporucam hned druhu kapitolu - Graphical Integrity

Samotne zavery clanku nikde nespochybnujem. Prave naopak, mrzi ma ze v takejto zaujimavej studii su pouzite tretotriedne grafy, preto mi to nedalo neozvat sa. Som vystudovany aplikovany matematik a analyze dat sa venujem profesionalne uz niekolko rokov. Cize dakujem za vysvetlenie a odporucania, ale o statistickom testovani hypotez mam toho nastudovaneho viac nez dost.

 Prospero      04.09.2018 - 11:15:12 (modif: 04.09.2018 - 11:15:24), level: 5, UP   NEW !!CONTENT CHANGED!!
Predpokladam ze napr. take loglog krivky Ti v takom pripade vadia tiez?

 orwin      04.09.2018 - 15:09:26 , level: 6, UP   NEW
Preco by mali? Pri log-log plotoch zobrazujes vztah medzi dvoma numerickymi premennymi. Podobne ako v priklade, ktory spominas tu: https://kyberia.sk/id/8539096 V oboch pripadoch je uplne ok zobrazit len relevantne casti osi.
V clanku sa snazia vizualizovat jednu premennu pre 3 rozne skupiny, co je uplne ina aplikacia

 dd      03.09.2018 - 21:31:34 , level: 5, UP   NEW
lol, si sa dozvedel o sebe.

Mr. Darcy
 Mr. Darcy      30.08.2018 - 14:14:17 (modif: 30.08.2018 - 14:14:51), level: 4, UP   NEW !!CONTENT CHANGED!!
je vyjadreny dost agresivne alebo cierno-humorne, ale nie je mimo

 Prospero      30.08.2018 - 14:20:22 (modif: 30.08.2018 - 14:20:45), level: 5, UP   NEW !!CONTENT CHANGED!!
Samozrejme ze je...Ked porovnavas napr. oteplenie planety Zem, tak do chartov tiez nedavas vsetko od absolutnej nuly (0Kelvina) az po rozpatie ktore Ta zaujima (pruser o ktory bezi v ekologii je zvysenie teploty planety o cca 1-2 K niekde v intervale 286 - 290 Kelvina), zaujimaju Ta delty len v intervale na ktory sa sustredis, co na ne vplyva atd. Keby si mal davat na chart vsetko od nuly, tak si ziadny rozdiel vizualne nemas sancu vsimnut, pricom ten rozdiel tam je, je statisticky signifikantny a niekedy moze rozhodovat o byti a nebyti celej jednej planety.

Mr. Darcy
 Mr. Darcy      30.08.2018 - 14:22:13 (modif: 30.08.2018 - 14:27:52) [1K] , level: 6, UP   NEW !!CONTENT CHANGED!!
mozes to zobrazit aj v inom grafe. si zaseknuty v svojej obhajobe.

(a konkretne v tvojom vymyslenom priklade ta zaujima delta proti udajom/priemerom za nejake obdobie, nie oproti 0K)

 Prospero      30.08.2018 - 14:38:00 (modif: 30.08.2018 - 14:48:19), level: 7, UP   NEW !!CONTENT CHANGED!!
Iste, jasne, a ked Ta zaujima napr. vplyv konzumacie mlieka / antibiotik / whatever na vysku jedinca homo sapiens sapiens tak musis do chartov istotne zaznacovat vsetko od 0cm az po 200cm, pretoze liliputani, elfovia, permonici a embrya su pre dany vyskum nesmierne relevantne bytosti...

Taktiez ked studujes vplyv faktoru X na IQ jedinca homo sapiens sapiens tak je istotne potrebne do vizualizacie vysledkov zaznacovat vsetko od nuly, pretoze IQ osoby ktora je v podstate mrtva (alebo taky imbecil ze nevie povedat "MU") je pre vyskum vplyvu faktoru X na IQ homo sapiens sapiens je nesmierne, ale nesmierne relevantne...

Inhale deeply young man...'Bo Tvoja averzia voci vsetkemu co hovorim Ti zacina zahmlievat mysel aj v oblastiach kde bol predtym nezahmleny...

 SimaSima      04.09.2018 - 08:56:14 , level: 8, UP   NEW
Prospero, vies toho rozhodne vela. Ale ten sposob, akym to cloveku napises. Nie je moc prijemny. Ako keby my vsetci sme boli debili, len ty si ten osvieteny. Co si mozno koniec-koncov aj myslis.

 Prospero      06.09.2018 - 13:30:46 , level: 9, UP   NEW
Simsim, osobne si myslím že sa mýliš, ale keďže viem že akákoľvek moja snaha presvedčiť Ťa o opaku by priniesla účinok skôr opačný, nebudem Ťa radšej presviedčať o ničom, istotne nie ja, istotne nie tu, a istotne nie teraz.

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