Django editing view/template for Froala form

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shotgun500

Guest
shotgun500 Asks: Django editing view/template for Froala form
I wanna use Froala editor form for creating and editing articles in my site. I can create any article with this form/can get data from editor, but i don't know how to insert article data from DB through view function into {{ form }} in my template. How to do this?

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Custom loss function for regression

Filip Asks: Custom loss function for regression
I am trying to write a custom loss function for a machine learning regression task. What I want to accomplish is following:

  • Reward higher preds, higher targets
  • Punish higher preds, lower targets
  • Ignore lower preds, lower targets
  • Ignore lower preds, higher targets

All ideas are welcome, pseudo code or python code works good for me.

This is what I tried so far, it does not work so well I think it is because it does not take high targets into account (just high preds):

Code:
def mae_high(inp, targ):
    inp, targ = flatten_check(inp, targ)
    thresh = np.percentile(inp.detach().numpy(), 50)
    mask = inp > thresh
    high_preds = torch.masked_select(inp, mask)
    high_targ = torch.masked_select(targ, mask)
    return torch.abs(high_preds - high_targ).mean()

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How would I prove this?

alwayscurious Asks: How would I prove this?
if there is a polynomial-time, additive 80-approximation algorithm for the Minimum Vertex Cover problem, then P = NP.

What i am thinking is, since we already know that the Min vertex cover + 80 vertices which spans vertex cover can be solved in polynomial time and then we need to find V-80 vertices from V ( V is total number of vertices in vertex cover) which is also vertex cover. this can also be done in polynomial time. Therefore the Min. Vertex Cover Problem can be solved in polynomial time. Therefore, P=NP.

I feel like this is wrong explanation. Any help is appreciated.

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[Solved] how to avoid too curly contours in QGIS?

Usha Asks: how to avoid too curly contours in QGIS?
I had point data in DXF and generated contours using QGIS. The contours had smaller islands and the contours in itself are too curly. I smoothed the contours too and I could avoid those unwanted island by rejecting contours of certain length enter image description here but how to avoid unwanted curliness in the single elevation contour. I am very new to QGIS and I don't know python too. I have attached an image of part of my contour here. I have marked the curly contours with blue while I expect them to be straight like marked in red. enter image description here

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[Solved] SearchCursor in arcpy, help!

Hannah Asks: SearchCursor in arcpy, help!
I'm pretty new to programming and am blocked on the correct way to format a SearchCursor that I need. I've attached a subset of my data below. I'm looking for a way to get arcpy to print out a list of counties(Adams, Alamosa, etc.) for each species if the cell value is equal to a 4 or 5. I'm pretty stuck on the correct wording and syntax to use to get it to print out a list of field names based on an integer cell value as well as the species name. Any help would be great!

I also attached a screenshot of my current code.... it's definitely all sorts of wrong but I'm not sure where to go next. enter image description here enter image description here

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[Solved] Color gradient in raster symbology using ArcGIS Pro

Beck Asks: Color gradient in raster symbology using ArcGIS Pro
I'm using ArcGIS Pro 2.8. I have a raster, shown below, whose data I would like to show in a smooth, detailed manner, like in the second raster shown. I recognize that the second raster has a much smaller range (the first one has a range of about 713-1363, while the second has a range of 1-353).

Is there a way for me to show the detail in the first raster?

The blocky, larger-ranged raster

The smooth, detailed raster, which has a range of 1-353

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The car continues clicking when the key is turned, but the car would not start

  • jeffrey
  • Physics
  • Replies: 0
jeffrey Asks: The car continues clicking when the key is turned, but the car would not start
The car continues clicking when the key is turned, but the car would not start..

Please click here to see the symptom I recorded.

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Suppose $G=\left\langle x, y, t|x^7=y^7=t^3=1, txt^{-1}=x^2, tyt^{-1}=y\right\rangle$. Show that $y\in Z(G)$.

Dick Grayson Asks: Suppose $G=\left\langle x, y, t|x^7=y^7=t^3=1, txt^{-1}=x^2, tyt^{-1}=y\right\rangle$. Show that $y\in Z(G)$.
The Problem: Suppose $G=\left\langle x, y, t|x^7=y^7=t^3=1, txt^{-1}=x^2, tyt^{-1}=y\right\rangle$. Show that $y\in Z(G)$.

My Attempt: Clearly $y$ commutes with $t$, so $y$ commutes with $t^2$ as well. Thus to show $y\in Z(G)$, it suffices to show that $y$ commutes with $x$. But I struggle to prove that $xy=yx$. It seems a rather silly place to get stuck-any HINT would be greatly appreciated.

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