Human-Computer Interaction Center Dr. Andr Calero Valdez Lehrstuhl - - PowerPoint PPT Presentation

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Aug 07, 2023 390 likes •527 views

Human-Computer Interaction Center Dr. Andr Calero Valdez Lehrstuhl fr Communication Science Human-Computer Interaction Center An open-source object-graph mapper for neo4j and scala: renesca https://github.com/renesca/renesca-magic Felix

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Human-Computer Interaction Center

Dr. André Calero Valdez

Lehrstuhl für Communication Science Human-Computer Interaction Center

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An open-source object-graph mapper for neo4j and scala: renesca

https://github.com/renesca/renesca-magic Felix Dietze, Johannes Karoff, André Calero Valdez, Christoph Greven, Ulrik Schroeder, Martina Ziefle

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Lehrstuhl für Communication Science Human-Computer Interaction Center RWTH Aachen University

Research: Integrative Production Technology

4 Integrated Cluster

Domains

3 Cross Sectional

Processes

180 Researchers from

40 institutes

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Lehrstuhl für Communication Science Human-Computer Interaction Center RWTH Aachen University

Scientific Cooperation Portal
Social Portal
Centralized means of

administration

Central data storage
User profiles

§ Method competencies § Publication lists

Interdisciplinary support

§ Interdisciplinary glossaries § Project planning § Technology transfer

9/26/18

Scientific Cooperation Portal

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Lehrstuhl für Communication Science Human-Computer Interaction Center RWTH Aachen University

Our Task: Graph-based Discussion System

Argument mapping
NEO4J (fast GDB)
Graph visualization using D3.js
How to manage hyper-edges?

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Lehrstuhl für Communication Science Human-Computer Interaction Center RWTH Aachen University

Why use Scala?

JVM compatible
Makros
Multiple Inheritance (traits)
Other benefits (functional programming

benefits)

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Lehrstuhl für Communication Science Human-Computer Interaction Center RWTH Aachen University

Impedance Mismatch Graph OO

OO Programming
Fits mental model
type-safety (syntax checking)
Inheritance (code reuse)
encapsulation (prevent side-effects)
Etc.
Graph-DB – Efficient Graph Traversal
Graph-based data structure
Local Neighborhood over Indexed-Search
Use-Case dependent

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Lehrstuhl für Communication Science Human-Computer Interaction Center RWTH Aachen University

How to define DB-Models ER-Diagrams

Entity Entity property relationship

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Lehrstuhl für Communication Science Human-Computer Interaction Center RWTH Aachen University

Scala-DSL for ER-Model DSL – Domain Specific Language

Animal Food name eats name amount

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Lehrstuhl für Communication Science Human-Computer Interaction Center RWTH Aachen University

Renesca Magic

Boilerplate classes and factories (Nodes, Relations,

Graphs)

getters, setters and factories for properties (type-safety)
Boilerplate for Hyperrelations
Node and Relation traits for labels and properties
functionality for free
Accessors for neighbors on Nodes, over Relations and

Hyper-Relations

Filtered set accessors for Nodes, Relations and traits in

a Graph

Query

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Lehrstuhl für Communication Science Human-Computer Interaction Center RWTH Aachen University

Overview of Renesca Transactions and OGM

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Lehrstuhl für Communication Science Human-Computer Interaction Center RWTH Aachen University

Very Simple Benchmark Comparison of inserting data

Comparing runtimes of simple

queries

Not extensive
No large data model
No complex transactions
Open-Source

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Lehrstuhl für Communication Science Human-Computer Interaction Center RWTH Aachen University

LiveDemo in Scala REPL Usage of renesca-magic What is staged?

Basic schema-definition
Load Schema definition in REPL
https://github.com/renesca/renesca-magic (Examples and Tutorial)
Problem? -> Issues!