[MINI] The Curse of Dimensionality
Data Skeptic26 Kesä 2015

[MINI] The Curse of Dimensionality

More features are not always better! With an increasing number of features to consider, machine learning algorithms suffer from the curse of dimensionality, as they have a wider set and often sparser coverage of examples to consider. This episode explores a real life example of this as Kyle and Linhda discuss their thoughts on purchasing a home.

The curse of dimensionality was defined by Richard Bellman, and applies in several slightly nuanced cases. This mini-episode discusses how it applies on machine learning.

This episode does not, however, discuss a slightly different version of the curse of dimensionality which appears in decision theoretic situations. Consider the game of chess. One must think ahead several moves in order to execute a successful strategy. However, thinking ahead another move requires a consideration of every possible move of every piece controlled, and every possible response one's opponent may take. The space of possible future states of the board grows exponentially with the horizon one wants to look ahead to. This is present in the notably useful Bellman equation.

Tämä jakso on lisätty Podme-palveluun avoimen RSS-syötteen kautta eikä se ole Podmen omaa tuotantoa. Siksi jakso saattaa sisältää mainontaa.

Jaksot(601)

Practicing and Communicating Data Science with Jeff Stanton

Practicing and Communicating Data Science with Jeff Stanton

Jeff Stanton joins me in this episode to discuss his book An Introduction to Data Science, and some of the unique challenges and issues faced by someone doing applied data science. A challenge to any ...

24 Loka 201436min

[MINI] The T-Test

[MINI] The T-Test

The t-test is this week's mini-episode topic. The t-test is a statistical testing procedure used to determine if the mean of two datasets differs by a statistically significant amount. We discuss how ...

17 Loka 201417min

Data Myths with Karl Mamer

Data Myths with Karl Mamer

This week I'm joined by Karl Mamer to discuss the data behind three well known urban legends. Did a large blackout in New York and surrounding areas result in a baby boom nine months later? Do sublimi...

10 Loka 201448min

Contest Announcement

Contest Announcement

The Data Skeptic Podcast is launching a contest- not one of chance, but one of skill. Listeners are encouraged to put their data science skills to good use, or if all else fails, guess! The contest w...

8 Loka 201412min

[MINI] Selection Bias

[MINI] Selection Bias

A discussion about conducting US presidential election polls helps frame a converation about selection bias.

3 Loka 201414min

[MINI] Confidence Intervals

[MINI] Confidence Intervals

Commute times and BBQ invites help frame a discussion about the statistical concept of confidence intervals.

26 Syys 201411min

[MINI] Value of Information

[MINI] Value of Information

A discussion about getting ready in the morning, negotiating a used car purchase, and selecting the best AirBnB place to stay at help frame a conversation about the decision theoretic principal known ...

19 Syys 201414min

Game Science Dice with Louis Zocchi

Game Science Dice with Louis Zocchi

In this bonus episode, guest Louis Zocchi discusses his background in the gaming industry, specifically, how he became a manufacturer of dice designed to produce statistically uniform outcomes.  Duri...

17 Syys 201447min

Suosittua kategoriassa Tiede

rss-mita-tulisi-tietaa
rss-poliisin-mieli
tiedekulma-podcast
rss-duodecim-lehti
menologeja-tutkimusmatka-vaihdevuosiin
docemilia
rss-astetta-parempi-elama-podcast
rss-tiedetta-vai-tarinaa
rss-lapsuuden-rakentajat-podcast
utelias-mieli
sotataidon-ytimessa
radio-antro
filocast-filosofian-perusteet
rss-ranskaa-raakana
rss-kasvatuspsykologiaa-kaikille
rss-sosiopodi