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09/03/07 - Similarity Scores
are a method of comparing basketball players to other players, with
the intent of discovering who the single most similar historical
player is to a certain player.
This method have been used to determine career paths and projected
statistics for players. The logic behind this line of thought is
simple: players often follow similar career trajectories to their
most similar players, so the historical similar players' performance
in years after the active player's current age should be a good
predictor of that active player's future production.
Similarity scores are also used extensively in many
statistical forecasting programs but is not used by the
eBA Basketball Statistics Creative
Analysis System.
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25/02/07: "...In many ways, the excessive
reliance on stats to assess Basketball performances is the
sports-related counterpart to that gloomy analysis. Stats dissolve
all the passion, energy and dynamics of each game in abstract,
numeric quantities that could easily lead one to believe that every
game is just like the other.
Recent attempts to put together
comprehensive statistical indexes capable of "objectively" measuring
players and teams performances - to the point where we could simply
check the numbers and dispense with the game themselves - are the
paroxysm of Basketball positivism. The multifaceted, rich aspects
that constitute the very essence of Basketball are set aside in the
name of an irrational belief in an abstract formula.
Usually the perpetrators of such heresies are guys who smugly claim that their
stats clearly rebuke "conventional wisdom". At its worst,
statistical analysis of pro sports degenerate into a set of foolish
statements that are at best extremely dubious and yet are treated as
"scientific claims".
Grown men who should really know better dish out atrocious
claims such as "Rodman produced more wins that Michael Jordan"....
A polemical opnion of Pedro a brazilian journalist in his blog posterized |
21/02/07 - Steals Statistical Register:
Kendall Ponder wrote in the Basketball Coaching Forum: "I decided years ago to give the
steal to whoever came up with the ball..... Both the player who tips the ball and the
player who was in correct defensive position to come up with the ball made positive plays
to get the ball. I don't split steals but I do give half a steal if a player ties up the
ball. It doesn't happen enough to make a difference is a players avg steals per game but it
makes sense to me to do it that way....."
Rick Allison answers: "I'm sorry if this may seem offensive, but...the last post
(and some other previous) is what I find intriguing and,
unfortunately, widely prevalent in the world of Basketball
coaching/training (actually, the world in general). That is, people
expressing less than informed opinions in a manner that suggests
that they are somehow valid, without providing adequate evidence of
what authority or proof supports their assertion. It is closely
akin (I believe) to the coaching style of "just do it that way
because I said so".
So what are you basing your assertion on? You said, "I really
don't like personal interpretation for stats", yet it seems that is
what you are doing unless you have access to a different (than NCAA)
official statistician' s manual that supports your assertion. The
rationale that we don't give a player a steal if he/she strips a
ball and the opponent retains possession is not valid reasoning,
because a steal implies a change of possession which did not occur
in your rationale example.
I respect your opinion (well-intentioned) , but this is a good
example of the kind of influence that fosters the spread of
misinformation. We must all strive to be more informed when we make
assertions in this way. Re-check your sources and rationale, if
possible. Now, sometimes we base our opinions on what we think is
valid information, but later turns out to be otherwise. I've also
been a victim of this... we all make mistakes... nothing wrong with
that (I believe)...but how you present your assertions is important.
I know this comes off as a "holier than thou" post and some
might find it offensive, but I think it is important and needs to be
said in this forum. Too often, coaches think that because they have
been coaching for many, many years, that assertions they make should
not be questioned or that they don't ever have to check the rule
book or other sources. It never hurts to check your assumptions and
assertions." Rick Allison from LoneStar Basketball Academy.
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18/02/07: Due to the growth in the number of registered members in
eBA Stats.com and daily visitors to the site and the clinics,
we are experiencing some technical difficulties with our file hosting server.
They affect the uptime availability and response time of our site...
Photograph: Steve Cannon at orlandosentinel.com
so, it is the right moment for a time out and a player change...
For the next days, we'll be working on moving all this site to our new server: with higher processing power and more space
for each one of our four ( 4 ! ) sites ( see below ).
We are also doing some more integration work between our old files and our new editors and the new server.
In concordance with our success in the eBA ONLINE Courses & Clinics during 2006,
we are programming and developing new contents for the current academic year 2007.
Therefore, we are working hard also to keep this site operating during these weeks:
Please, stand by ! We'll return in a few days back to full speed with four new independently located sites:
eBA-Stats ~
eBA-Clinic ~
eBA-Forum and
eBA-Word... Thank You !
The new Basketball Statistics Register Course in eBA ONLINE,
begin on Monday 5, March 2007 - 21:00 GMT:
there are no more available vacancies !
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15/02/07 - Stats don’t lie.
Seriously. If Joe Blow scores 20 points in a game, he scores 20
points. If he does it on 10 for 36 shooting with 12 turnovers, and
Johnny Analyst praises Joe Blow’s brilliant offensive performance,
then it’s Johnny Analyst doing the lying, not the stats.
Offensive and defensive rebounding are different things.
I mean, it was 14 years ago that the NCAA began distinguishing between offensive and defensive rebounds.
It was a major advancement in stats keeping. Yet, with the exception of Fran Fraschilla,
analysts will simply refer to a team’s “rebounding” either qualitatively or quantitatively,
which often is misleading. These are two distinct, albeit related, skills.
Offensive rebounding requires individual effort. Defensive rebounding is more team oriented.
Florida is a great defensive rebounding team. They are not a great rebounding team -
they are less than great on the offensive end. (Ken Pomeroy)
Opinion encountered in the Ken Pomeroy Blog
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03/02/07: Question: "Player is dribbling down the
side of the court. During the dribble, he stops touching the ball
and allows the ball to bounce a couple of times inbounds parallel to
the sideline, as his right foot goes out of bounds a few times. He
gets back inbounds and takes control of the ball again and continues
the dribble. Is the call out of bounds, even if he did not have
control of the ball while his foot was out ? If positive, which is the stats register ?"
( posted by peter_ball )
Answer: He's out. The key is that he still did have
player control because he was dribbling. If there is a situation
where the player had touched the ball but did not have control he
may go out and return to be the first to touch it or get control. In
the play you described there was no loss of player control.
eBA Statistical Register:
Unforced Turnover if the player was not forced to go out of bounds;
and
Forced Turnover if the defensive pressure of an opponent forced the
player out of bounds.
More Statistics Questions
& Answers: Go to eBA Forum
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