Loss

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• Common Loss functions in machine learning | Ravindra Parmar - Towards data Science
• Loss Functions Explained | Siraj Raval
• Loss Functions | ML Cheatsheet

a measure of how well an AI model can approximate the expected output from a given input. Loss is usually calculated by a loss function, which compares the model’s prediction with the actual output and returns a numerical value that represents the difference or error. A lower loss means that the model is more accurate, while a higher loss means that the model is less accurate. There are different types of loss functions, such as mean squared error, cross entropy, hinge loss, etc., depending on the type of problem and output that the model is trying to solve.

There are many options for loss in Tensorflow (Keras). The actual optimized objective is the mean of the output array across all datapoints. A loss function gives a distance between a model's predictions to the ground truth labels. This is the distance (loss value) that the network aims to minimize; the lower this value, the better the current model describes our training data set. Click here For a list of Keras loss functions. Loss is one of the two parameters required to compile a model...

Loss is an important concept in machine learning, as it guides the process of training and optimizing the model. By minimizing the loss, the model can learn to adjust its parameters (such as weights and biases) to improve its performance and reduce its error. This can be done by using various optimization algorithms, such as gradient descent, stochastic gradient descent, Adam, etc., which update the model’s parameters in the direction that reduces the loss.

Loss is also related to other concepts in machine learning, such as overfitting and underfitting. Overfitting occurs when the model learns too much from the training data and fails to generalize well to new or unseen data. This can result in a low loss on the training data, but a high loss on the validation or test data. Underfitting occurs when the model learns too little from the training data and fails to capture the underlying patterns or relationships. This can result in a high loss on both the training and validation or test data.

To avoid overfitting and underfitting, machine learning practitioners often use various techniques, such as regularization, dropout, early stopping, data augmentation, etc., to improve the model’s generalization ability and reduce its variance or bias. These techniques can help balance the trade-off between fitting the data well and being flexible enough to adapt to new data.

Loss Curve

• What do loss curves for LLMs look like? | Stella Rose Biderman - Tyefully

Loss Curve or Loss Graph is a graphical representation of the module's loss after every step of the AI's reading and training. A good 'level' for loss is very subjective, generally, you want to avoid the curve following a path that goes too low or too high, as both have their own issues. - NovelAI Unofficial Knowledgebase

'https://finbarr.ca/static/images/llama-training-curves.png'

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model.compile(optimizer='sgd'. loss='mean_squared_error')

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A graphical representation of the module's loss after every step of the AI's reading and training. A good 'level' for loss is very subjective, generally, you want to avoid the curve following a path that goes too low or too high, as both have their own issues. - NovelAI Unofficial Knowledgebase

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