Quy Nguyen trungquy

Why did you do this?

Relax, I only have one Sunday to work on idea, literally my weekend project. So I tried Deepseek to see if it can help. Surprisingly, it works and it saves me another weekend...

What is your setup?

Just chat.deepseek.com (cost = free) with prompts adapted from this gist.

Does it work in one-shot or I have to prompt it multiple times?

Steps to create Textured Mesh from Point Cloud using Meshlab

Get your PointCloud into MeshLab

Import the pointcloud file in ".ply" file format in Meshlab. Before importing make sure you do some pre-processing / cleaning on point cloud so as to ease the process of meshing.

Point Cloud Simplification and Normals Computation

Next we need to reduce the number of point samples for smooth meshing.
- So go to Filters -> Point Set -> Point Cloud Simplification. Enter Number of samples circa 5% of original number of points. Make sure Best Sample Heuristic is checked.
After point cloud simplification, make sure to select Simplified point cloud in the Show Layer Dialog on the right hand side. If not visible, it can be opened by navigating to View -> Show Layer Dialog. Now we need to compute normals for point set.
So go to Filters -> Point Set -> Compute normals for point sets . Enter Neighbour num between 10 - 100. Initially try with 10 and

High-Performance Matrix Multiplication

This is a short post that explains how to write a high-performance matrix multiplication program on modern processors. In this tutorial I will use a single core of the Skylake-client CPU with AVX2, but the principles in this post also apply to other processors with different instruction sets (such as AVX512).

Intro

Matrix multiplication is a mathematical operation that defines the product of

Install Notes - Dell XPS 13 (9370) 2018

The laptop works well on Archlinux. A few notes based on the installation guide for the previous version.

Intel GPU Power Saving

Per the Arch wiki, more power can be saved by creating /etc/modprobe.d/i915.confwith the following content:

options i915 modeset=1 enable_rc6=1 enable_fbc=1 enable_guc_loading=1 enable_guc_submission=1 enable_psr=1

$ wget -e robots=off -r -np 'http://example.com/folder/'

-e robots=off causes it to ignore robots.txt for that domain
-r makes it recursive
-np = no parents, so it doesn't follow links up to the parent folder

1. Get your IP Address

echo `ifconfig $(netstat -nr | grep -e default -e "^0\.0\.0\.0" | head -1 | awk '{print $NF}') | grep -e "inet " | sed -e 's/.*inet //' -e 's/ .*//' -e 's/.*\://'`

	name: "DetectNet"
	layer {
	name: "train_data"
	type: "Data"
	top: "data"
	include {
	phase: TRAIN
	}
	data_param {
	batch_size: 2

	import tensorflow as tf
	from tensorflow.python.framework import ops
	from tensorflow.python.ops import gen_nn_ops

	@ops.RegisterGradient("GuidedRelu")
	def _GuidedReluGrad(op, grad):
	return tf.select(0. < grad, gen_nn_ops._relu_grad(grad, op.outputs[0]), tf.zeros(grad.get_shape()))

	if __name__ == '__main__':
	with tf.Session() as sess: