Data Science & Machine Learning – Telegram
Data Science & Machine Learning
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Join this channel to learn data science, artificial intelligence and machine learning with funny quizzes, interesting projects and amazing resources for free

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Top 10 Computer Vision Project Ideas

1. Edge Detection
2. Photo Sketching
3. Detecting Contours
4. Collage Mosaic Generator
5. Barcode and QR Code Scanner
6. Face Detection
7. Blur the Face
8. Image Segmentation
9. Human Counting with OpenCV
10. Colour Detection
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Top Bayesian Algorithms and Methods:

- Naive Bayes.
- Averages one-dependence estimators.
- Bayesian belief networks.
- Gaussian naive Bayes.
- Multinomial naive Bayes.
- Bayesian networks.
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An Artificial Neuron Network (ANN), popularly known as Neural Network is a computational model based on the structure and functions of biological neural networks. It is like an artificial human nervous system for receiving, processing, and transmitting information in terms of Computer Science.

Basically, there are 3 different layers in a neural network :

Input Layer (All the inputs are fed in the model through this layer)

Hidden Layers (There can be more than one hidden layers which are used for processing the inputs received from the input layers)

Output Layer (The data after processing is made available at the output layer)

Graph data can be used with a lot of learning tasks contain a lot rich relation data among elements. For example, modeling physics system, predicting protein interface, and classifying diseases require that a model learns from graph inputs. Graph reasoning models can also be used for learning from non-structural data like texts and images and reasoning on extracted structures.
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Which of the following is not a function of scikit learn?
Anonymous Poll
8%
classification
11%
regression  
12%
clustering
68%
data cleaning
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Which Scipy package can be used for standard continuous and discrete probability distributions?
Anonymous Quiz
15%
Scipy.integrate
68%
Scipy.stats
8%
Scipy.signal
10%
Scipy.optimize
Which Scipy package can be used to solve differential equations?
Anonymous Quiz
50%
Scipy.integrate
26%
Scipy.linalg
12%
Scipy.sparse
13%
Scipy.stats
Which of the following is incorrect code to replace na values with 0 in data?
Anonymous Quiz
36%
data.replace(0,na.nan)
31%
data.replace(na.nan,0)
33%
data.fillna(0)
Data Science & Machine Learning
Which of the following is incorrect code to replace na values with 0 in data?
Just a correction here
"np.nan" instead of "na.nan"
Hope you all are aware that mostly we
import numpy as np
Which type of data is separated into bins for analysis
Anonymous Quiz
56%
Continuous
44%
Discrete
1
Which of the following is correct code to generate 20 normally distributed random numbers?
import numpy as np
Anonymous Quiz
28%
np.random(20)
39%
np.random.rand(20)
33%
np.random.randn(20)
Which function is used to randomly reorder a Series or rows in Dataframe?
Anonymous Quiz
24%
np.random
39%
np.random.rand
23%
np.random.permutation
13%
np.random.combination
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You should definitely check the documentation of numpy and scikit learn if you are facing difficulty in answering above questions
https://numpy.org/doc/stable/
https://scikit-learn.org/

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1
Which website is best to learn Programming and Data science according to you?
Anonymous Poll
27%
Udemy
5%
Udacity
3%
Edx
18%
Coursera
8%
Datacamp
1%
Eduonix
7%
Freecodecamp
13%
Kaggle
2%
Dataquest
17%
Can't decide
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Which area of machine learning is concerned with how intelligent agents ought to take actions in an environment in order to maximize the notion of cumulative reward?
Anonymous Quiz
25%
Supervised Learning
67%
Reinforcement Learning
8%
Unsupervised Learning
What is gradient boosting trees?

Gradient boosting is a machine learning technique for regression and classification problems, which produces a prediction model in the form of an ensemble of weak prediction models, typically decision trees.
1
Which of the following is a supervised Learning technique?
Anonymous Quiz
18%
Clustering
75%
Classification
7%
Association
Which training set is provided for supervised learning?
Anonymous Quiz
19%
Only inputs
5%
Only outputs
76%
inputs and correct outputs