Questions tagged [precision]

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Why doesn't the high precision of neural network weights improve accuracy?

Consider the following paragraph from the subsubsection 3.5.2: A dtype for every occasion chapter named It starts with a tensor from the textbook titled Deep Learning with PyTorch by Eli Stevens et al....
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Equations for computing true positives and false positives when using object detection algorithms?

I am running some evaluation metrics using the YOLOv5 object detection algorithm, and wish to calculate my true positives and false positives. For instance, the evaluation metric outputs are as ...
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What is meant by a "relevant document" in NLP?

In natural language processing, I came across the concept of "relevant document" several times. And several analytical formulas, such as precision, recall are based on the relevant documents....
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What does a value of -1.000 mean in MS COCO Metrics for Object Detection

I am training some Object-Detection-Models from the TensorFlow Object Detection API and got from the evaluation with MS COCO metrics the following results for Average Precision: IoU = 0.5;0.9 maxDets =...
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Why am I not getting a good accuracy but bad precision and recall for this binary classification problem (with an unbalanced dataset)?

I'm working on a simple MLP classification problem where I need to have the output layer as softmax. The dataset that I've been using needs to pass through a parse that I made to remove NaN and change ...
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What is Precision@K for link prediction in graph embedding meaning?

I am trying to re-implement the SDNE algorithm for graph embedding by PyTorch. I get stuck at some issues about evaluation metric Precision@K. precision@k is a metric which gives equal weight to the ...
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149 views

Is it possible that every class has a higher recall than precision for multi-class classification?

I am a student learning machine learning recently, and one thing is keep confusing me, I tried multiple sources and failed to find the related answer. As following table shows (this is from some paper)...
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52 views

Given the precision and recall of this model, what can I say about it?

The following table shows the precision and recall values I obtained for three object detection models. The goal is to find the best object detection model for that particular data set. I evaluate ...
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How to calculate the precision and recall given the predictions and targets in this case?

I'm using three pre-trained deep learning models to detect vehicles and count from an image data set. The vehicles belong to one of these classes ['car', 'truck', 'motorcycle', 'bus']. So, for a ...