The receiver operating characteristic area under curve is a way to measure the performance of a classification model, may be created using algorithms like Logistic Regression.
ROC-AUC is basically a graph where we plot true positive rate on y-axis and false positive rate on x-axis.
https://botbark.com/2019/12/30/print-roc-auc-receiver-operating-characteristic-area-under-curve/
Could someone give me an explanation of a Receiver Operating Characteristic in regards to how validates binary classifiers? I've taken a look at the Wikipedia page but I'm a bit confused on the basic essence of the concept. Also, what specifically differentiates this from Area Under the Curve?
https://towardsdatascience.com/receiver-operating-characteristic-curves-demystified-in-python-bd531a4364d0
A step by step explanation of how to derive the ROC curve using Python examples.
I know that the ROC curve shows how well a binary classifier works, depending on a threshold value. It basically shows the lower we set the threshold to get "True", the more true positives we get, but also the more false positives we get.
I understand the "characteristic" part. But why "receiver operating"?
Problem: https://i.imgur.com/Ih2mBev.png
I'm trying to create this graph: https://en.wikipedia.org/wiki/Receiver_operating_characteristic
Given f(x|H_0) and f(x|H_1) and a threshold "beta", how do I find P_d and P_f ? P_d is the probability that it is correctly identified (true positive rate), and P_f is the probability that it is incorrectly identified (false positive rate).
I have Zweig's article and another one by Alemayehu, but am having trouble grasping the concept. If this is not appropriate for /r/statistics I apologize (its not homework help, more trying to understand how to interpret and use the ROC curve). Thanks for any input you can lend.
Is there anything good to read as an overview of how to prevent a transmitting rig from damaging nearby receivers?
I gather this commonly comes up in activities like Field Day. I'm more specifically interested in operating on HF (and possibly other bands) when I have receivers of various kinds (skimmers, beacon monitors etc) tuned to various bands.
Hi, first of all, please excuse my mistakes since english is not my first language. I'm just an electrical engineering major trying to finish her bachelor thesis. I'm having a hard time finding some parameters for my thesis and as my last resort, I have come to reddit for help. Does anyone know the typical noise figure, noise floor, noise temperature, and the SIR (signal-to-interference ratio) of a Direct Broadcast Satellite (DBS) receivers operating in the C -band? And if you could provide a reference, it would be great. Any help would be very much appreciated :)
When it comes to BI what are the characteristics of a company that really has their sh*t together and operates well compared to other companies that are simply posturing?
For me it boils down to the overall maturity of the leadership and an awareness to adapt to the times well by planning properly and treating their employees well.
But I might be wrong and welcome your different perspectives.
It's been so long since I last set up the receiver that I know I am probably missing something very simple to enable the headphone jack.
3 days ago a circuit breaker tripped and it took awhile to reset it (numerous attempts, left it in the on position and then the power returned on its own about 10mins later). It wasn't until the next night when I went to use my headphones that I realized the receiver was off. Turned it back on to then discover no sound. The panel said "analog" and I tried the signal select button but nothing. I knew this would be a project for another day.
Today I got the manual out, looked at the output from my TV and remembered I was using optical digital audio. I restored that to the TV component and sound was restored to the speakers (which I had turned all the way down because volume control doesn't affect headphone levels). However, nothing came from the headphones. Well, nothing steady. I get little snippets of sound.
So, anyone got some troubleshooting advice? At the moment, the headphones are the ONLY thing I use the receiver for these days (CD player died last year and haven't bothered with a new one yet) so I really don't want to buy a new receive just to use a $15 pair of headphones....
UPDATE - FIXED!
As I suspected, it was something trivial: the Speaker selector needs to be set to "B" in order to deliver sound only to the headphone jack. Headphones back on! [Ironically, I had one of the YouTube videos that are just people reading responses to various Reddit sub questions as I futzed with it until finding the right combo].
Hello.
I ride a 2009 R12GSA, and am hoonigan enough to hate the OE silencer. I've also just signed a mortgage and obtained myself a fiancee. Thank god I got this GS before she realized how much it cost.
In the interests of saving cash, I note the plethora of cheap silencers available on the eBay for other engines/frames.
My understanding of natural aspiration exhaust design is that the higher the scavenging, the better. However, there is a limit to this, and the limit is the amount of air flow for which the ECU has been programmed to account, rather the ceiling is how much volume of air the ECU can provide spark, fuel, and timing values for.
I also note that there is no Power Commander, or similar, for my engine. Presumably the engine already runs close enough to heat soak that additional tuning is a lost cause.
I don't honestly care how it looks to have a non-standard silencer on my GS. Am I going to do damage components if I use, say, a ZX-12R silencer instead?
Many thanks
Hey, all. Never posted before, so sorry for the simple formatting, and also a new player, so sorry if this has already been said or is nonsense, but just wanted to give a small little PSA for OCD players like me. First time I cleared Westminster I really didn't get an assassin feel to my operative like I wanted, I think some of you know what I mean: when the character really doesn't match what you envisioned, you know? Well, turns out there's a really easy fix for it. Both physical traits and skills can be re-rolled with 5 to ten minutes work.
This game does not have a save-file feature, but a save-slot feature, so as soon as you get the operative, that's it, your stuck, but, what you can do is save right before the region mission, exit to main menu, then upload to cloud, then complete the mission. If you don't like your new operative, just download from cloud and start again!
Now I know what some of you are thinking, that sounds like a lot of work, but I kind of discovered a great joy in it: 'cause the first time I do a mission, it's always a bit messy. So I've really come to enjoy streamlining and making the best, coolest, "was-never-therest" run possible. Most of the region missions take from 5 to ten minutes (the ones I've done so far, at least) and when you get the hang of a mission, it gets real easy to look cool. Plus, some of them really ARE simple and easy like the aforementioned Westminster which is just running around a maze with a spiderbot. Took me 3 tries but I got the Dalton-type character I really wanted.
Hope this helps!
EDIT 1: I'm now pretty convinced the stats on "skilled operatives" are fixed by looking at screens from other games. So the PSA goes for appearance only, I believe. Still: just got an elderly Indian hoolingan, so it's a nice option to have...
EDIT 2: MoronicIdiot529 has confirmed that this is only a PC possibility, it dopes not work on XBOX. PS status still undefined.
EDIT 3: Have also confirmed another little save exploit on PC. In order to have saves at different points in the game you can also start new games to the point of saving (so until you leave the safe house with an agent for the first time), then leave the game, go to the save folder (3353 on the Ubisoft savegames folder) and replace the new game with your old/main save). The first slot is 2.sav, the second 3.sav and the third 4.sav. So if you're playing on 1, but would like
... keep reading on reddit ➡
