RecoDS Tuan Van Jack Herbert Anthony Vigil Beau Crawford.

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Presentation transcript:

RecoDS Tuan Van Jack Herbert Anthony Vigil Beau Crawford

Overview What is RecoDS? Data Structure Recognition of: Arrays Linked Lists Trees Combinations

Motivation Why do Diagram Recognition? More effective teaching methods Clarification of understanding/misunderstanding Saved examples of misunderstandings

Presentation Outline Component Recognition

Presentation Outline Component Recognition Data Structure Recognition

Presentation Outline Component Recognition Data Structure Recognition Data Structure Rendering

Presentation Outline Component Recognition Data Structure Recognition Data Structure Rendering Interactive Demo

Presentation Outline Component Recognition Data Structure Recognition Data Structure Rendering Interactive Demo Advanced Functionality

Presentation Outline Component Recognition Data Structure Recognition Data Structure Rendering Interactive Demo Advanced Functionality Advanced Demo

Presentation Outline Component Recognition Data Structure Recognition Data Structure Rendering Interactive Demo Advanced Functionality Advanced Demo Challenges

Component Recognition Arrays Array Head Cell: Array Next Cell:

Component Recognition Linked List Linked List Node: Linked List Pointer:

Component Recognition Trees Tree Node: Tree Edge:

Component Recognition Connecting Data Structures Pointers:

Component Recognition Algorithm Finds Feature points (corners) Speed Curvature Relative angles between feature points Component probabilities

Data Structure Recognition Arrays Our recognition is based on Arrays being drawn one component at a time Example:

Data Structure Recognition Linked Lists Our recognition is based on Linked Lists being drawn one component at a time Consist of Linked List Nodes and Linked List Pointers Example:

Data Structure Recognition Trees Our recognition is based on Trees being drawn one component at a time Trees Consist of Tree Nodes and Edges Tree nodes and edges can be drawn in any order Example:

Data Structure Rendering Width of nodes is dictated by size of text contained within node Short String Example: Long String Example:

Data Structures Questions??

Interactive Demo Demo

Interactive Demo Demo

Interactive Demo Demo

Advanced Functionality Child data structures Multi-stroke Recognition Arrays Linked Lists

Advanced Functionality New File Opening Files Saving Files Erasing Strokes Selecting data structure(s) to recognize Lasso Selection box

Advanced Functionality Moving data structures Online Help Viewing Options Panning Zooming

Advanced Functionality Questions??

Advanced Demo Demo

Advanced Demo Demo

Tradeoffs User Learning vs. Machine Learning

Challenges Limited experience with C# Tablet PC platform Exploratory work

Questions??