Pattern Classification and Multimedia Computing Quiz
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Questions and Answers

What is the purpose of a feature extractor in pattern classification?

A feature extractor is a program that inputs the data (image) and extracts features that can be used in classification.

Define a class in the context of pattern classification.

A class is a set of objects having some important properties in common.

What is the role of a classifier in pattern classification?

A classifier is a program that inputs the feature vector and assigns it to one of a set of designated classes or to the “reject” class.

List the stages of the Design Cycle in pattern classification as mentioned in the text.

<p>Data collection, Feature Choice, Model Choice, Training, Evaluation, Computational Complexity</p> Signup and view all the answers

What is post processing in the context of pattern classification?

<p>Use a feature vector provided by a feature extractor to assign the object to a category. Exploit context input dependent information other than from the target pattern itself to improve performance.</p> Signup and view all the answers

______ 1 Analysis phase includes: System request, Requirements definition, Models, Feasibility Analysis, Workplan, System proposal

<p>System Analysis</p> Signup and view all the answers

System Analysis 2 All three ______ of the system are interlinked and dependent on each other

<p>architectural views</p> Signup and view all the answers

System Analysis 3 BUSINESS PROCESS AND FUNCTIONAL MODELING Functional models describe ______ processes and the interaction of an information system with its environment. In object-oriented systems development, two types of models are used to describe the functionality of an information system:  use cases diagrams  activity diagrams. Use cases are used to describe the basic functions of the information system. Activity diagrams support the logical modeling of ______ processes and workflows. Both can be used to describe the current as-is system and the to-be system being developed. We’ll describe ______ process and functional modeling as a means to document and understand requirements and to understand the functional or external behavior of the system.

<p>business</p> Signup and view all the answers

System Analysis 4 _____ USE CASE ANALYSIS

<p>USE CASE</p> Signup and view all the answers

System Analysis 5 WHAT IS A USE CASE. A ______ depicts a set of activities performed to produce some output result. Each ______ describes how an event triggers actions performed by the system and the user. With this type of event-driven modeling , everything in the system can be thought of as a response to some trigger event.

<p>use case</p> Signup and view all the answers

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