Data Growth and Knowledge Extraction Quiz

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Questions and Answers

What is the primary focus of data science?

  • Synthesizing information
  • Developing large computers
  • Extracting insights and knowledge from data (correct)
  • Understanding complex reality

What does data science involve?

  • Skills and knowledge only from computer science
  • Skills and knowledge only from mathematics
  • A combination of skills and knowledge from various fields (correct)
  • Skills and knowledge only from statistics

What can models extracted from data be used for?

  • Simulating purchasing patterns
  • Controlling processes
  • Developing predictive maintenance systems (correct)
  • Understanding customer leakage

In which fields can data science be applied for customer-related purposes?

<p>Company/banking/insurance and digital marketing (A)</p> Signup and view all the answers

What kind of techniques are used in data science?

<p>Statistical and computational techniques (C)</p> Signup and view all the answers

Why is discerning relevant information increasingly critical in today's society?

<p>To extract insights and knowledge from data (D)</p> Signup and view all the answers

What is the main purpose of data mining?

<p>Summarize a massive database to facilitate decision making (B)</p> Signup and view all the answers

What is the primary task in the data cleaning phase of the data science workflow?

<p>Removing duplicate data (A)</p> Signup and view all the answers

In which stage of the data science workflow is the train-test data approach used?

<p>Data modelling (B)</p> Signup and view all the answers

What is the purpose of KDD (Knowledge Discovery from Databases) in data science?

<p>Extraction of patterns of information from large amounts of data (D)</p> Signup and view all the answers

What types of databases can Data Mining techniques be applied to?

<p>Relational, spatial, temporal, documentary, multimedia databases (C)</p> Signup and view all the answers

Which stage of the data science workflow involves building a hypothesis model for future predictions?

<p>Data modelling (B)</p> Signup and view all the answers

What is the focus of the optimization and deployment stage in the data science workflow?

<p>Checking the accuracy and optimizing the model for better predictions (A)</p> Signup and view all the answers

What is one type of data that can be included in the data collection phase?

<p>Videos (D)</p> Signup and view all the answers

What is the primary focus of semantic segmentation?

<p>Assigning a label to each pixel in an image (D)</p> Signup and view all the answers

Which dataset is commonly used for semantic segmentation?

<p>PASCAL VOC (2012) (A)</p> Signup and view all the answers

What are some applications of semantic segmentation?

<p>Autonomous navigation (D)</p> Signup and view all the answers

What does semantic segmentation contribute to scene understanding?

<p>It assists in identifying and labeling each pixel in an image (A)</p> Signup and view all the answers

Before the advent of deep learning, which techniques were commonly used for semantic segmentation?

<p>TextonBoost and TextonForest (C)</p> Signup and view all the answers

What is the difference between instance segmentation and semantic segmentation?

<p>Instance segmentation focuses on labeling each pixel, while semantic segmentation focuses on recognizing objects. (D)</p> Signup and view all the answers

In the context of Fully Convolutional Networks (FCN), what is the purpose of utilizing skip-layer concept?

<p>To improve the segmentation accuracy (D)</p> Signup and view all the answers

What is the main purpose of using deconvolutional layers in the context of semantic segmentation?

<p>To increase the spatial resolution (C)</p> Signup and view all the answers

Which architecture uses VGG architecture and has no fully connected (FC) layer in the context of semantic segmentation?

<p>SegNet (D)</p> Signup and view all the answers

What is the purpose of unpooling layers in semantic segmentation?

<p>To recover spatial information lost during pooling (B)</p> Signup and view all the answers

What is the primary function of U-Net architecture in the context of convolutional networks?

<p>Biomedical image segmentation (D)</p> Signup and view all the answers

Which technique is used in Fully Convolutional Networks (FCN) to interpret fully connected (FC) layers as convolutional layers?

<p>Applying deconvolutional layers (D)</p> Signup and view all the answers

What is the main difference between FCN with 1-skip connection and FCN with 2-skip connections?

<p>The amount of spatial information used in segmentation (D)</p> Signup and view all the answers

Which network architecture uses pre-trained networks for classification for segmentation in Fully Convolutional Networks (FCN)?

<p>VGG (D)</p> Signup and view all the answers

What is the purpose of utilizing deconvolutional layers in semantic segmentation?

<p>To increase the spatial resolution (A)</p> Signup and view all the answers

Which network architecture uses the skip-layer concept to improve the segmentation accuracy?

<p>Fully Convolutional Networks (FCN) (B)</p> Signup and view all the answers

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