Visitantes

Powered By Blogger

Pesquisar neste Blog

sábado, 9 de janeiro de 2016

My Brief Guide to Big Data and Predictive Analytics for non-experts

Ronald van Loon ‏@Ronald_vanLoon 
My Brief Guide to Big Data and Predictive Analytics for non-experts | #BigData#PredictiveA… http://bit.ly/1N01U9l  

UIT cria primeiro padrão oficial para Big Data

UIT cria primeiro padrão oficial para Big Data
http://cio.com.br/tecnologia/2015/12/21/uit-cria-primeiro-padrao-oficial-para-big-data/

Common Errors in Machine Learning due to Poor Statistics Knowledge

Common Errors in Machine Learning due to Poor Statistics Knowledge


Por 
  •    -  
  • Probably the worst error is thinking there is a correlation when that correlation is purely artificial. Take a data set with 100,000 variables, say with 10 observations. Compute all the (99,999 * 100,000) / 2 cross-correlations. You are almost guaranteed to find one above 0.999. This is best illustrated in may article How to Lie with P-values (also discussing how to handle and fix it.)

    3852501387

    This is being done on such a large scale, I think it is probably the main cause of fake news, and the impact is disastrous on people who take for granted what they read in the news or what they hear from the government. Some people are sent to jail based on evidence tainted with major statistical flaws. Government money is spent, propaganda is generated, wars are started, and laws are created based on false evidence. Sometimes the data scientist has no choice but to knowingly cook the numbers to keep her job. Usually, these “bad stats” end up being featured in beautiful but faulty visualizations: axes are truncated, charts are distorted, observations and variables are carefully chosen just to make a (wrong) point.

    Read the full article here

  • Announcing a New Free Primer on Web Analytics | Web Analytics Action Hero

    http://www.analyticshero.com/2014/10/02/announcing-a-new-free-primer-on-web-analytics/

    Announcing a New Free Primer on Web Analytics | Web Analytics Action Hero

    http://www.analyticshero.com/2014/10/02/announcing-a-new-free-primer-on-web-analytics/

    Announcing a New Free Primer on Web Analytics | Web Analytics Action Hero

    http://www.analyticshero.com/2014/10/02/announcing-a-new-free-primer-on-web-analytics/

    A Data-Backed Approach: The Top 100 Big Data Experts to Follow in 2016

     
    A Data-Backed Approach: The Top 100 Big Data Experts to Follow in 2016
    https://www.maptive.com/the-top-100-big-data-experts/

    Elencamos 10 tendências para o uso de Big Data nas empresas

     
    Oracle Brasil compartilhou:
    Elencamos 10 tendências para o uso de Big Data nas empresas. Olha só:http://goo.gl/8mRoZS. Via @computerworldbr