Quantcast
  • Register
PhysicsOverflow is a next-generation academic platform for physicists and astronomers, including a community peer review system and a postgraduate-level discussion forum analogous to MathOverflow.

Welcome to PhysicsOverflow! PhysicsOverflow is an open platform for community peer review and graduate-level Physics discussion.

Please help promote PhysicsOverflow ads elsewhere if you like it.

News

PO is now at the Physics Department of Bielefeld University!

New printer friendly PO pages!

Migration to Bielefeld University was successful!

Please vote for this year's PhysicsOverflow ads!

Please do help out in categorising submissions. Submit a paper to PhysicsOverflow!

... see more

Tools for paper authors

Submit paper
Claim Paper Authorship

Tools for SE users

Search User
Reclaim SE Account
Request Account Merger
Nativise imported posts
Claim post (deleted users)
Import SE post

Users whose questions have been imported from Physics Stack Exchange, Theoretical Physics Stack Exchange, or any other Stack Exchange site are kindly requested to reclaim their account and not to register as a new user.

Public \(\beta\) tools

Report a bug with a feature
Request a new functionality
404 page design
Send feedback

Attributions

(propose a free ad)

Site Statistics

205 submissions , 163 unreviewed
5,047 questions , 2,200 unanswered
5,345 answers , 22,709 comments
1,470 users with positive rep
816 active unimported users
More ...

  What is known about Higgs LHC machine learning algorithm for identifying Higgs events?

+ 6 like - 0 dislike
955 views

Recently many LHC-affiliated organizations and otherwise announced the Higgs ML learning challenge (in May) running over the summer. There are many competing teams and significant results posted already.

Is this contest duplicating analysis that has been done inside LHC teams already, looking for better Higgs-related statistical classification than "in-house" algorithms? If so, what is known about the nature/performance of "in-house" algorithms? Is any of that published? Especially wondering how it compares with the same contest metric.

[1] Kaggle Higgs learning challenge
[2] Higgs ML challenge site
[3] Learning to discover: the Higgs boson machine learning challenge

This post imported from StackExchange Physics at 2015-10-23 17:26 (UTC), posted by SE-user vzn
asked Jun 21, 2014 in Experimental Physics by vzn (80 points) [ no revision ]
retagged Oct 23, 2015
Pointedly there isn't a "the LHC algorithm". Each experiment runs it's own analysis and will have their own algorithm (or more likely algorithms). The field shares the basic skillset for writing and running these things, but the state of the art is always pressing forward and a better Higgstrap can mean being first to publish some important new measurement, so the details come out after the experiment has milked some value our of each improvement (this is also how you show that it was an improvement...).

This post imported from StackExchange Physics at 2015-10-23 17:26 (UTC), posted by SE-user dmckee
understood ofc there are many algorithms/experiments. however the competition is for a very specific scenario of something like Higgs decay into two taus. has that analysis been published by insiders (LHC teams)? is that different than detection of the Higgs? what algorithm did they use there? etc

This post imported from StackExchange Physics at 2015-10-23 17:26 (UTC), posted by SE-user vzn
I'm not a collider guy and have moved on from the job I had recently where I worked next to a couple and saw a bunch of their talks, so I'm not up on the details of what has been released. I'm a little out of my depth on anything at those energies, but I would expect that mode to be a bit tricky because there is a lot of variability in the missing $p_T$ and many ways the $\tau$s can manifest in the detector.

This post imported from StackExchange Physics at 2015-10-23 17:26 (UTC), posted by SE-user dmckee

1 Answer

+ 3 like - 0 dislike

The best solutions of the challenge are available in these papers:

http://jmlr.org/proceedings/papers/v42/

This post imported from StackExchange Physics at 2015-10-23 17:26 (UTC), posted by SE-user Roberto Diaz Morales
answered Sep 16, 2015 by Roberto Diaz Morales (30 points) [ no revision ]

Your answer

Please use answers only to (at least partly) answer questions. To comment, discuss, or ask for clarification, leave a comment instead.
To mask links under text, please type your text, highlight it, and click the "link" button. You can then enter your link URL.
Please consult the FAQ for as to how to format your post.
This is the answer box; if you want to write a comment instead, please use the 'add comment' button.
Live preview (may slow down editor)   Preview
Your name to display (optional):
Privacy: Your email address will only be used for sending these notifications.
Anti-spam verification:
If you are a human please identify the position of the character covered by the symbol $\varnothing$ in the following word:
p$\hbar$ysicsOverf$\varnothing$ow
Then drag the red bullet below over the corresponding character of our banner. When you drop it there, the bullet changes to green (on slow internet connections after a few seconds).
Please complete the anti-spam verification




user contributions licensed under cc by-sa 3.0 with attribution required

Your rights
...