Showing posts with label brookbaseball. Show all posts
Showing posts with label brookbaseball. Show all posts

Monday, June 20, 2016

WAIBI DISSECTION


WAIBI SAID: HEY!! CHOOSE THE OPPORTUNE  PLAYER, NOT THE OPPORTUNISTIC ONE!!


ABOUT DATABASE ON BROOKSBASEBALL

As we have advanced in our previous articles, WAIBI Sabermetric System is focused on the qualitative evaluation of the players, not on their historical performance. For these reasons the system discards (or tries to dismiss as accurately as possible) the inconsistencies that arise in the application of the conventional notation system, in which we identified “Default” and “Average” as its fundamental syndromes. 
We have been developing the first phase of the system, but without possessing  a database that meets the necessary characteristics for our work, we have relied on other existing, which provide a fairly detailed data flow. So we've selected BrooksBaseball.
The choice has been justified in the distribution of data which can separate or identify the actions of each player progressively (whether batter or pitcher), so, we can delete multiple "default" data. Remember that even though “default” data doesn’t depend directly from Pitcher_vs_Hitter relation, it affects significantly the numbers of each player, distorting the decoding and final accuracy in the analysis. However, other "default" data distort the interpretation, (and therefore, the real idea about the quality of a specific player) could not be eliminated. This happens because the error is created directly from the annotation rules in force in the Official Baseball Rules.








For WAIBI, the distribution of each data (action) play by play  is indispensable. The essence of its functionality isn’t in the details of the phenomenon (as in most of the current sabermetric stats) but in the details of the pieces that make up the phenomenon, and how  intermesh one with the other. This makes it undoubtely more accurate to evaluate the quality of a specific player, even from this initial stage of implementation. The first Waibi rule is all about avoiding as much as possible what we recognize as Average Syndrome. However, the database implemented by BrooksBaseball, or at least the version we have accessed, contains a series of erroneous or incomplete informations that are hindering  the successful processing of all data. For example, the classification of "Des" and "PDes" columns (the first is the description of the final result of each “at-bat”, and the second is for each launch) often suggest absurdities in the conventionality of the game. For example,  “hits” situations, “extra-base hits”, “groundouts” and others, sometimes end in “called strikes” or “balls” instead of “In play no out” or similar. There’s some descriptions blank. “Hit by pitch” with “In play no out”. Even “Homers” are described 4 times as “foul”, in the latest throw of turn. There’re also “out” situations  recorded as hits in the conventional play by play score, just to mention some examples.
Despite this, BrooksBaseball is a complex data base, with a large number of interesting graphics. It contains invaluable information. We believe it’s an ideal site to assess specific players trends. This facilitates the characterization of them. In The Book, Tom Tango refers the illustrative concept of "La Famiglia". The charts and diagrams in BrooksBaseball allow us to interpret  this concept quite rightly, being able to discern by a deeper study, which are the fathers, brothers, children and grandchildren of each "Famiglia". In this way, the incongruity of some data, or even its absence, would not affect the interpretation, because of the enormous size of the sample, to evaluated  numerically something as inespecific as the trend. It's like the difference between a mortar and a rifle precision: both are great, the choice depends on the mission.