PITCHME.md

DALPHI

DALPHI Active Learning Platform for Human Interaction

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Motivation

• Supervised Machine Learning needs annotated data
• Existing training data are
  • often outdated
  • in military context
  • too universal or too specific
• Need to generate own training data
• Existing solutions are time consuming and exhausting
• ... and as such expensive

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Example:
Named Entity Recognition

• Inconvenient available annotation interfaces
• Mostly with linguistic focus
• Only whole document views
• Distribution to annotators done manually

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GATE

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brat rapid annotation tool

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WebAnno

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• To solve these problems, we restructured the way annotations are done fundamentally.
• We designed an iterative workflow to automate as much as we can and to save annotator's attention.
• And created the OpenSource project Dalphi.

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Dalphi

• Web application, runs everywhere
• Helps building and maintaining annotated data
• Key features:
  • Iterating active learning supported workflow framework
  • Human readable presentation
  • Server side to propose useful annotations
  • Parallel distribution to annotators
  • Problem-agnostic document handling

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Terminology

• Service
• Raw data
• Annotation document
• Statistic
• Interface
• Project

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Service

• any system capable of communicating over HTTP
• maintaining problem specific jobs
• three types:
  • Iterate
  • Merge
  • Machine Learning

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Raw data

• data that needs to be annotated

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Raw data

JSON

{
	"foo": "bar",
	"foobar": 1.23
}

HTML

<h1>Impressum</h1>
<p>3antworten UG (haftungsbeschränkt)<br>Karl-Kunger Straße 64<br>12435 Berlin</p>

JPG

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Annotation document

• a subset of raw data
• document which is renderable and annotable

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Statistic

• key-value pair
• mostly chronological numeric values

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Interface

• problem specific user interface
• renders an annotation document as a subset of raw data

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Project

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Projects

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Dashboard

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Raw data

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Edit raw datum

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Annotation documents

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Show annotation document

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Annotators

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Show Annotator

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Statistics table

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Statistics graph

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Services

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Edit service

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Interfaces

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Edit Interface

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Test Interface

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Annotators

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Edit Annotator