Question

Let $W$ be random matrix and $b$ be vector. Let $x$ be secret vector; let $(y(x))_j = \max(W_j^Tx+b,0)$. Find $x' \in B(x;r)$ s.t $y(x')=y(x)$ whp

score 21 · Answer 1 · 2026-03-25 07:45:36

21

Views

Let $W$ be random matrix and $b$ be vector. Let $x$ be secret vector; let $(y(x))_j = \max(W_j^Tx+b,0)$. Find $x' \in B(x;r)$ s.t $y(x')=y(x)$ whp

Published on 25 Mar 2026 - 7:45

score 71 · Answer 2 · 2020-09-27 04:35:49

71

Views

How to find $q,\beta$ such that $\nabla\cdot[\gamma\nabla u]=0\Leftrightarrow(-\Delta +q)v=0$ for some $v=\beta u $?

Published on 27 Sep 2020 - 4:35

score 146 · Answer 3 · 2020-10-02 10:53:09

146

Views

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Published on 02 Oct 2020 - 10:53

score 67 · Answer 4 · 2020-10-11 00:03:20

67

Views

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score 16 · Answer 5 · 2020-10-15 19:26:19

16

Views

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Published on 15 Oct 2020 - 19:26

score 44 · Answer 6 · 2020-11-02 18:32:01

44

Views

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Published on 02 Nov 2020 - 18:32

score 117 · Answer 7 · 2026-03-25 12:15:07

117

Views

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score 20 · Answer 8 · 2020-11-23 19:27:33

20

Views

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Published on 23 Nov 2020 - 19:27

score 239 · Answer 9 · 2020-12-02 06:57:42

239

Views

Are there any particular reasons why the minimum norm solution should be preferred?

Published on 02 Dec 2020 - 6:57

score 17 · Answer 10 · 2026-03-12 11:32:14

17

Views

What is the main difference between interior and exterior inverse problem?

Published on 12 Mar 2026 - 11:32

score 34 · Answer 11 · 2021-01-11 18:35:02

34

Views

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Published on 11 Jan 2021 - 18:35

score 92 · Answer 12 · 2021-02-02 15:42:50

92

Views

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Published on 02 Feb 2021 - 15:42

score 100 · Answer 13 · 2026-02-24 05:04:25

100

Views

Gaussian deconvolution for rapidly decreasing functions.

Published on 24 Feb 2026 - 5:04

score 38 · Answer 14 · 2026-02-25 12:16:57

38

Views

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Published on 25 Feb 2026 - 12:16

score 29 · Answer 15 · 2021-02-21 05:49:30

29

Views

Variance estimate of solution of inverse problem by nonlinear least squares with multi-dimensional model function?

Published on 21 Feb 2021 - 5:49

List Question

Let $W$ be random matrix and $b$ be vector. Let $x$ be secret vector; let $(y(x))_j = \max(W_j^Tx+b,0)$. Find $x' \in B(x;r)$ s.t $y(x')=y(x)$ whp

How to find $q,\beta$ such that $\nabla\cdot[\gamma\nabla u]=0\Leftrightarrow(-\Delta +q)v=0$ for some $v=\beta u $?

How to extend the Radon transform to $L^2(\mathbb{R}^2)$?

Imaginary zeros of quasipolynomial

Distribution of population size $n$ given binomial sample quantity $x$ and selection probability $\pi$

Wellposedness of differentiation.

Computing a least-squares least-norm solution to image deconvolution

if we represents $\varphi$ as trgonometric polynomial, do we make the solution smoother?

Are there any particular reasons why the minimum norm solution should be preferred?

What is the main difference between interior and exterior inverse problem?

How can I find some $r\in\mathbb{R}$ such that the following matrix has a full rank?

Error propagation in a simple linear model (asked by a non math-major researcher).

Gaussian deconvolution for rapidly decreasing functions.

Identifying specific pattern in a noisy dataset

Variance estimate of solution of inverse problem by nonlinear least squares with multi-dimensional model function?

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