ראיון עבודה machine learning

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The new dataset you have just scraped seems to exhibit lots of missing values. What action will help you minimizing that problem?

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שאלה #69297

		Wise fill-in of controlled random values
		Replace missing values with averaging across all samples
		Remove defective samples
done		Imputation

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Which of the following methods can use either as an unsupervised learning or as a dimensionality reduction technique?

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שאלה #69298

		SVM
done		PCA
		LDA
		TSNE

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What is the main motivation for using activation functions in ANN?

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שאלה #69299

done		Capturing complex non-linear patterns
		Transforming continuous values into "ON" (1) or "OFF" (0) values
		Help avoiding the vanishing/exploding gradient problem
		Their ability to activate each neurons individually.

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Which loss function would fit best in a categorical (discrete) supervised learning ?

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שאלה #69300

		kullback-leibler (KL) loss
done		Binary Crossentropy
		Mean Squared Error (MSE)
		Any L2 loss

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You create a decision tree to show whether someone decides to go to the beach. There are three factors in this decision: rainy, overcast, and sunny. What are these three factors called?

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שאלה #69301

		tree nodes
done		predictors
		root nodes
		deciders

נערך לפני שנתיים stav shlomovich

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You need to quickly label thousands of images to train a model. What should you do?

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שאלה #69302

		Set up a cluster of machines to label the images
		Create a subset of the images and label then yourself
done		Use naive Bayes to automatically generate labels.
		Hire people to manually label the images

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Many of the advances in machine learning have come from improved?

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שאלה #69303

		structured data
done		algorithms
		time
		computer scientists

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You need to select a machine learning process to run a distributed neural network on a mobile application. Which would you choose?

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שאלה #69304

		Scikit-learn
		PyTorch
done		Tensowflow Lite
		Tensorflow

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Which choice is the best example of labeled data?

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שאלה #69305

done		a spreadsheet
		20,000 recorded voicemail messages
		100,000 images of automobiles
		hundreds of gigabytes of audio files

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In statistics, what is defined as the probability of a hypothesis test of finding an effect - if there is an effect to be found?

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שאלה #69306

		confidence
		alpha
done		power
		significance

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מיין לפי דירוג חדש ישן

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