Jingbiao's Blog

「Hinc lucem et pocula sacra」

Threshold Moving - Finding optimal threshold for classification

Introduction Balanced class A class label is being predicted within a classification task. Most of the time, a threshold of 0.5 is used. Larger than 0.5 for one class (1), smaller than 0.5 for ano...

Posted by Jingbiao on August 22, 2021, 1 minute to read

Argparser python usage

import 1 import argparse Initialise argparser 1 parser = argparse.ArgumentParser() Add arguments for the parser 1 2 parser.add_argument('--value', '-v', type=str, default='def', ...

Posted by Jingbiao on August 22, 2021, Less than 1 minute to read

Issue with transformer and Pytorch conflicts

In one project, the transformers package has to be version:transformers==3.5.1, and Pytorch has be >= 1.8.0 - Installing the legacy version may have some conflicts, but anaconda sh...

Posted by Jingbiao on July 14, 2021, 1 minute to read

Issue with python JSONDecodeError

Issues Json loader issue When inputting json file into python with json.loads(_), 1 [json.loads(jline) for jline in open(path, "r").read().split('\n')] line 36 of hm_data.py a like...

Posted by Jingbiao on July 14, 2021, 1 minute to read

Json with python

Read Json files in python Json files with no spaces or newlines Inputting json file into python with json.loads(_), Store a dictionary of a dictionary 1 2 3 # Store the json...

Posted by Jingbiao on July 14, 2021, 1 minute to read

Paddlepaddle installation issues and fixation

Issues Conda do not have the correct version for installing paddlepaddle gpu. In order to get the correct version you need to use pip. While using pip, cudnn is not installed, and environmental var...

Posted by Jingbiao on July 14, 2021, 1 minute to read

OFDM Audio Modem project

\( \require{amstext} \require{amsmath} \require{amssymb} \require{amsfonts} \) Introduction An OFDM audio modem that uses speaker as transmitter and microphone as receiver is developed. Communicat...

Posted by Jingbiao on May 15, 2021, 9 minutes to read

OFDM with audio modem

List of useful Transforms Pointwise product of two function in continuous time domain → Linear convolution in frequency domain Pointwise product of two functions in the continuous...

Posted by Jingbiao on May 15, 2021, Less than 1 minute to read

Channel estimation with OFDM random symbol

Estimation, Synchronization, and Tips

\( \require{amstext} \require{amsmath} \require{amssymb} \require{amsfonts} \) Channel estimation 1.Generate an n-length sequences of psuedo-random constellation values By means of psued...

Posted by Jingbiao on May 15, 2021, 9 minutes to read

Peterhouse Garden

Some pictures of the Peterhouse Garden in 2021 spring

Posted by Jingbiao on May 10, 2021, Less than 1 minute to read