Search found 11 matches

by Kalman
Sat Aug 12, 2006 3:46 am
Forum: Stardust@home Discussion
Topic: Tiny embedded grains. Specks. Inclusions
Replies: 29
Views: 25818

I think that losing a few percents from specificity is not so much problem, if your sensitivity stays high. It means that you have a good chance to recognize the real thing meanwhile you produce some false positives. I have a guess that the database is full of false positives for now, so it does'not...
by Kalman
Fri Aug 11, 2006 1:07 pm
Forum: Stardust@home Community
Topic: Thoughts on science, scores, and naming
Replies: 9
Views: 9668

Re: Thoughts on science, scores, and naming

That's why I wish we could get some CLEAR guidance on these faint tracks or "inclusions". I spend a lot of time on these, especially when they are visable thru a significant number of layers in a movie. ... My scan time could be cut in half If we knew for sure these were manufacturing inclusions, a...
by Kalman
Fri Aug 11, 2006 3:04 am
Forum: Stardust@home Discussion
Topic: "I think I've found a track, what do you think?"
Replies: 1355
Views: 972166

http://stardustathome.ssl.berkeley.edu/myevents_viewer.php?id=862370V1 You can see what looks like a thin track going in at an angle, then a clear, black speck at the bottom of the track. As far as dust goes, this is pretty cool. If this isn't a real one, I'll be surprised. It really looks good. Th...
by Kalman
Thu Aug 10, 2006 12:08 pm
Forum: Stardust@home Discussion
Topic: Tiny embedded grains. Specks. Inclusions
Replies: 29
Views: 25818

In addition, multiple "dots" started showing up in a single movie and after I considered the number of expected particles to be found, it was my supposition that these might not be tracks- but more than likely (elsewhere described) "inclusions" ... Since there have already been a number of these th...
by Kalman
Thu Aug 10, 2006 11:30 am
Forum: Stardust@home Discussion
Topic: Stardust@home Suggestion Thread
Replies: 276
Views: 316670

My method is to start it slowly. I spend even a minute with the first few movies, pulling the focus up and down.
It helps accomodating my eyes. After all, why hurry? I am 34. :lol:
by Kalman
Thu Aug 10, 2006 11:14 am
Forum: Stardust@home Discussion
Topic: Multiple viewings of FOVs: statistical analysis, conclusions
Replies: 8
Views: 9721

Random numbers for the tracking tool, but linear numbers for the MyEvents would not have broken all the links in the discussions. I must revise my viewpoint. It is very likely that the 5 digit numbers stand only for marked movies. And it would explain, why numbers are increasing continuously. Soone...
by Kalman
Wed Aug 09, 2006 12:50 pm
Forum: Stardust@home Discussion
Topic: Tiny embedded grains. Specks. Inclusions
Replies: 29
Views: 25818

Some addition: It is reasonable that researchers don't have a clear idea about how must be a track look like. But they should have some experience on the possible impurity of the aerogel, because it can be well studied on earth. Still there is not any warning in the tutorial like "be aware of little...
by Kalman
Wed Aug 09, 2006 12:36 pm
Forum: Stardust@home Discussion
Topic: Multiple viewings of FOVs: statistical analysis, conclusions
Replies: 8
Views: 9721

Re: Multiple viewings of FOVs: statistical analysis, conclus

The large number of views per movie suggests that we are dealing with a much smaller set of real movies loaded so far into the database made available for volunteer viewing. That number of real scans is between 3.8e6/76 and 5.1e6/76 or 50000 to 67000. Well, you justified me in my conclusion. I figu...
by Kalman
Wed Aug 09, 2006 12:11 pm
Forum: Stardust@home Discussion
Topic: Tiny embedded grains. Specks. Inclusions
Replies: 29
Views: 25818

Tiny embedded grains. Specks. Inclusions

Hi! As I have browsed your candidate movies, I've noticed a kind of object again and again. They don't look like a classic track on calibration images, but they are definitely below the surface of aerogel. I call them tiny embedded grains (TEG's, hmmm?), but I recognized that many others walk into t...
by Kalman
Wed Aug 09, 2006 9:01 am
Forum: Stardust@home Discussion
Topic: Who gets "new" movies?
Replies: 21
Views: 20179

Well you have to realize that the viewing software is designed to send newly flagged tracks to many other viewers (up to 100 was the original plan) so that many sets of eyes would judge anything flagged as a track. So One discovery, can cause that movie to get sent to a hundred viewers or more. In ...
by Kalman
Wed Aug 09, 2006 8:30 am
Forum: Stardust@home Discussion
Topic: "I think I've found a track, what do you think?"
Replies: 1355
Views: 972166

what are you guys thinking about this one? http://stardustathome.ssl.berkeley.edu/myevents_viewer.php?movie_id=35073 I think it is an out of focus movie, the surface is somewhere at the last slide. My thumb rule is when something is sharp on the surface, it is almost surely not a track. But who kno...