Nirika Lamichhane

Exploring intelligence through code and mathematics. 👩‍💻

[Nirika Lamichhane @LearnWithNirika]

#LSPPDay52 @lftechnology
Today I got hands on project experience on complete computer vision where I evaluated traditional vs. deep learning baselines, generative modeling and data augmentation and modern vision transformers.
#60daysoflearning2026 #LearningWithLeapfrog

[Nirika Lamichhane @LearnWithNirika]

#LSPPDay51 @lftechnology
Today I learned how model can learn shortcuts from the similar background of training samples neglecting the actual shapes and features. Also learned the difference of kernels of ResNet and conv from scratch.
#LearningWithLeapfrog
#60daysoflearning2026

[Nirika Lamichhane @LearnWithNirika]

#LSPPDay50
Today I continued the same image processing project and understood the concept of no grad and how it helps in freezing parameters in case of transfer learning.
#LearningWithLeapfrog
@lftechnology
#60daysoflearning2026

[Nirika Lamichhane @LearnWithNirika]

#LSPPDay49
Today I revised convolution, its distinct feature, hierarchy of features, why ReLU is non linear activation function. I also learned about ouput size of CNN, transfer learning, padding and stride property.
@lftechnology #60DaysOfLearning2026 #LearningWithLeapfrog

[Nirika Lamichhane @LearnWithNirika]

#LSPPDay48
I continued my major project, there were some merging conflict in the repo, so I solved it. Changed my branch name and worked in the automated report generation for each computation of the stations.
#60DaysOfLearning2026 @lftechnology #LearningWithLeapfrog

[Nirika Lamichhane @LearnWithNirika]

#LSPPDay47
Today I worked on my project of wind aware DGNN for AQI, where I normalized the stations and mapped the names to index, then I calculated the distance matrix of all 48 stations using Haversine formula.
@lftechnology
#60DaysOfLearning2026
#LearningWithLeapfrog

[Nirika Lamichhane @LearnWithNirika]

#LSPPDay46 @lftechnology
Today I learned the foundations of Node js. Then I built the full image processing pipeline where I did color space conversion, HSV segmentation, histogram equalization, noise filtering, etc.
#60DaysOfLearning2026
#LearningWithLeapfrog

[Nirika Lamichhane @LearnWithNirika]

#LSPPDay45
Today I learned more about HSV. I coded it by myself and tried on red apple with white background. Interpreted the masking on the HSV pic of red apple and the original one.
@lftechnology
#60DaysOfLearning2026
#LearningWithLeapfrog

[Nirika Lamichhane @LearnWithNirika]

#LSPPDay44
Today I just learned the mathematics behind the complex backpropagation. Learned the crisp difference of forward and backward propagation. Did the actual calculations in this backpropagation with XOR gate.
@lftechnology #60DaysOfLearning2026 #LearningWithLeapfrog

[Nirika Lamichhane @LearnWithNirika]

#LSPPDay43
@lftechnology
#60DaysOfLearning2026 #LearningWithLeapfrog
Today I explored the loss landscape, how different optimization techniques look at the dimensions of loss landscape. I learned overparameterizations and how it is improving generalization.

[Nirika Lamichhane @LearnWithNirika]

#LSPPDay42
@lftechnology
#60DaysOfLearning2026 #LearningWithLeapfrog
Today I got clarity on why we need to convert the color space when working with OpenCV and matplotlib, the mandatory dimension of an image and why Hue value in OpenCV is half of the standard HSV hue.

[Nirika Lamichhane @LearnWithNirika]

#LSPPDay41
@lftechnology #60DaysOfLearning2026 #LearningWithLeapfrog

Today I learned about reaizing and rescaling images and video frames, knew the default scale value is 0.75. Explored basic functions, image transformation, contour and edge detection in OpenCV.

[Nirika Lamichhane @LearnWithNirika]

#LSPPDay40 #LearningWithLeapfrog #60DaysOfLearning2026 @lftechnology
Today I learnt basic concepts of reading images and video frames using OpenCV. I learnt the meaning of -215 assertion error that usually comes after the vdo is completely played.

[Nirika Lamichhane @LearnWithNirika]

#LSPPDay39 @lftechnology #60DaysOfLearning2026 #LearningWithLeapfrog
Today I was doing hands on coding of building CNN layers, optimizing it using GridSearch and optuna. I learned about internal covariate shifts and activation mangnitude stability provided by normalization.

[Nirika Lamichhane @LearnWithNirika]

#LSPPDay38 #LearningWithLeapfrog #60DaysOfLearning2026 @lftechnology
Today was non technical for me, as I explored literature review and resource gap finding techniques. Which sites to look for and how to make it concrete so as to prevent redundancy in R&D.

[Nirika Lamichhane @LearnWithNirika]

#LSPPDay37 #60DaysOfLearning2026 #LearningWithLeapfrog
Today I read the same research paper DGNN-AEA further and learned about decomposition of adjacency matrix into weight and topology matrix, about multi graph stitching.

[Nirika Lamichhane @LearnWithNirika]

#LSPPDay36 #60DaysOfLearning2026 #LearningWithLeapfrog

Today I learned about sigmoid, its mechanism of backpropagation and vanishing gradients. Learned the logic to build the NN from scratch using __init__ and forward() function.

[Nirika Lamichhane @LearnWithNirika]

#LSPPDay35
@lftechnology #60DaysOfLearning2026 #LearningWithLeapfrog
Today I learned about loss function in NN.
I learned what it actually measures, its real goal. I explored common loss functions and their role in helping NN learn from their mistakes.

[Nirika Lamichhane @LearnWithNirika]

#LSPPDay34
@lftechnology #60DaysOfLearning2026 #LearningWithLeapfrog
Today I learned about the code resuablility, how can we write code so as to take image of any type. Importance to convert the 3D tensor input to single dimensional.

[Nirika Lamichhane @LearnWithNirika]

#LSPPDay33
@lftechnology
#60DaysOfLearning2026
#LearningWithLeapfrog
Today I read the research paper Dynamic GNN Adaptive edge attributes, where I learned about AQI prediction in detail. Along with that, I coded the 2 layer Neural Network using nn.module.