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Viewing 15 posts - 16 through 30 (of 31 total)
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  • in reply to: How the total score is calculated on Leader Board #2713
    thejbills
    Keymaster

    Running the max and min numbers.

    Max score
    Max regression score: 1.0
    Max classification score: 1.0
    Max total score: 1.0

    Min score
    Min regression score: 0
    Min classification score: -5.0
    Min total score: -2.5

    in reply to: Adding a New Team Member for the PHM Challenge #2712
    thejbills
    Keymaster
    in reply to: Adding a New Team Member for the PHM Challenge #2711
    thejbills
    Keymaster

    Please just email us the request with the new team memeber’s information.

    in reply to: How the total score is calculated on Leader Board #2710
    thejbills
    Keymaster

    Hi Qin,

    As stated in the main description “Classification and regression predictions will be scored separately, and the final score is the mean score of all predictions.”

    in reply to: understanding the training dataset #2706
    thejbills
    Keymaster

    Design torque is not a measured variable, thus it’s not in the X_train.csv (features) file. And the goal is to predict the torque margin which is a function of the design torque. Torque margin is given in the y_train.csv (targets) file.

    thejbills
    Keymaster

    Our scoring function actually uses the parameters you supply including the scale (I’ll update the description language). But the scoring functions corrects area and peak probability.

    If the area is not 1 it’s normalized to 1.
    Then
    If the max probability is greater than 1, it’s normalized to one.

    in reply to: understanding the training dataset #2699
    thejbills
    Keymaster

    From the data challenge problem descrition page

    Each engine is instrumented to capture the outside air temperature, mean gas temperature, power available, indicated airspeed, net power, and compressor speed.

    oat = outside air temperature
    mgt = mean gas temperature
    pa = power available
    ias = indicated airspeed
    np = net power
    ng = compressor speed (that one’s not as obvious)

    in reply to: Where can I find the Leader Board? #2698
    thejbills
    Keymaster

    FYI, the leader board is up. All participants should have recieved an email notifying them.

    in reply to: the number of engines #2681
    thejbills
    Keymaster

    There is. We originaly had 6 engines, but we were able to get another one. There are 4 engines in the training dataset.

    in reply to: the number of engines #2680
    thejbills
    Keymaster

    There is. We originaly had 6 engines, but we were able to get another one. There are 4 engines in the training dataset.

    thejbills
    Keymaster

    You are correct!

    The idea is to strongly penalize predicting that the engine is okay when infact it’s not. This is a false negative.

    For the reference of others reading this.

    Positive refers to the faulty state
    Negative referes to the healty state

    False positive = predicting faulty engine when it is healthy
    False negative = predicting healthy engine when it is faulty

    in reply to: Is sample_id the same as id? #2678
    thejbills
    Keymaster

    What we’ve shown on the webpage is generic. Please use the id that aligns with the observation in each file.

    in reply to: Where can I find the Leader Board? #2677
    thejbills
    Keymaster

    It’s not up yet! There have been some delays. I’ll see where we stand at try to get it up and running.

    in reply to: Welcome to the 2024 PHM Conference Data Challenge #2663
    thejbills
    Keymaster

    Hi Hanqisu,

    We are further pursuing methods of explainability this year. Last year, we had participants submit a discreet distribution with a confidence metric. This year, we are building on that to ask for a continuous distribution (which is required for a regression analysis). As indicated in the writeup, the scoring algorithm evaluates the probability of your estimate at the exact torque margin.

    If you like, we can incorporate a delta function, which will allow you to submit an exact value. However, if this value is off even by a little, you’ll get a score of 0 because you’ll have predicted a probability of zero. If you consider the problem, there are better ways to submit a PDF that will give you a better chance (and get closer to what you’re trying to achieve).

    in reply to: submission area changed #2533
    thejbills
    Keymaster

    imp101, you are not a registered participant. Thus you don’t have access to the submission page. We have received some registration request with incorrect user names and email addresses. If you have already tried to register, it is possible that one of these was your registration. Please submit a registration with the same username and email address that you use for the phmsociety.org site.

Viewing 15 posts - 16 through 30 (of 31 total)