Right around the 5 minute mark she discusses teacher accountability models, how they have accountability for the teachers, but there is no accountability for the model.
Thursday, 18 May 2017
Algorithms: Friend of Foe of the Average Guy?
Thought some of you, if you have 15 minutes to spare (and it works well to listen while doing something else, the visuals don't add much; I folded laundry while listening/watching), might enjoy this video by Cathy O'Neil, author of Weapons of Math Destruction. She talks about algorithms and how they are used -- and how they hurt people, hurt a democracy.
Right around the 5 minute mark she discusses teacher accountability models, how they have accountability for the teachers, but there is no accountability for the model.
Right around the 5 minute mark she discusses teacher accountability models, how they have accountability for the teachers, but there is no accountability for the model.
Could Germany's secret weapon be big data in 2014?
Any soccer fans? Back in Turkey, soccer, or the football in there, is a very popular game. I grew up playing soccer all the time and watching the legends of European and Latin American football. After I came to the States it has been difficult for me to catch up with the results as, between you and me, grad school doesn't let you have that kind of luxury, and of course the time difference.
You probably heard how FSU football team made use of the GPS technology to collect data on the players' heart rates, acceleration, and speed around 2013-2014 - good times (more on this). Well, Germany may have used a similar technology back in 2014 during the World Cup. It was a very successful tournament for Germany as they beat 5-time winner Brazil with a shocking score of 7-1. Of course the success of the team depends on hard work mostly, but it has been reported that the German Football Association was in collaboration with a software company called SAP AG in the beginning of the tournament. The company was using the data from previous games and reporting it to the German team so that the team can be best prepared against the rivals (more on this). It is not sure that it was the big data which helped Germany against Brazil or it was Brazil's bad performance but data is everywhere and it is possible to make use of it for decision making. What do you think? Details are here.
You probably heard how FSU football team made use of the GPS technology to collect data on the players' heart rates, acceleration, and speed around 2013-2014 - good times (more on this). Well, Germany may have used a similar technology back in 2014 during the World Cup. It was a very successful tournament for Germany as they beat 5-time winner Brazil with a shocking score of 7-1. Of course the success of the team depends on hard work mostly, but it has been reported that the German Football Association was in collaboration with a software company called SAP AG in the beginning of the tournament. The company was using the data from previous games and reporting it to the German team so that the team can be best prepared against the rivals (more on this). It is not sure that it was the big data which helped Germany against Brazil or it was Brazil's bad performance but data is everywhere and it is possible to make use of it for decision making. What do you think? Details are here.
Monday, 15 May 2017
Correlate things ... because you can?
It's certainly possible to run -- and find! -- correlations between any number of things, but we all hopefully) know that correlation does not indicate causality, or really that one item has anything to do with the other. Sometimes correlations indicate things that co-occur in a meaningful way (they may not have a causal relationship but rather a common underlying cause), and other times correlations are just random.
Tyler Vigen has a blog -- and now a book -- that identifies all manner of spurious correlations. Y'know, like the correlation between Japanese passenger cars sold in the US and suicides by crashing motor vehicles. The correlation is real! The numbers don't lie! But we need the be careful about interpreting it.
Check it out! Which is your favorite?
http://www.tylervigen.com/spurious-correlations
You can even discover your own. For example, what correlates with sunlight in FL? Find the answers here: http://tylervigen.com/discover?type_select=sunlight&var_select=Florida&exclude_county=on
Tyler Vigen has a blog -- and now a book -- that identifies all manner of spurious correlations. Y'know, like the correlation between Japanese passenger cars sold in the US and suicides by crashing motor vehicles. The correlation is real! The numbers don't lie! But we need the be careful about interpreting it.
Check it out! Which is your favorite?
http://www.tylervigen.com/spurious-correlations
You can even discover your own. For example, what correlates with sunlight in FL? Find the answers here: http://tylervigen.com/discover?type_select=sunlight&var_select=Florida&exclude_county=on
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