The document proposes a Semantic Repository of Things that would provide a centralized naming system and storage of semantic descriptions for IoT devices and things. Manufacturers, hackers, and makers could populate the repository using simple web forms, graph upload tools, or APIs. The repository would store semantic descriptions in a graph database and provide semantic search capabilities through SPARQL queries to enable interoperability and applications.

1. Semantic Repository of
Things
Pratik Desai, Ph.D.
pratiK@osiot.org
Open Source Internet of Things (OSIOT)
Pre-Hackathon Project Proposal
www.osiot.org

2. Why?
• Standardization of data annotation model for “Things”.
• Interoperability in open horizontal platform.
• Provide Graph search on “Thing” database.
• Supplement IoT-toolkit.
www.osiot.org

3. What?
• “DNS” like centralized naming system but for “Thing” descriptions.
• Store semantic descriptions of each “Thing” in Neo4j or other triple
store.
• Provide semantic search capabilities.
• Provide API access endpoint for IoT-toolkit enabled devices and 3rd
party services.
www.osiot.org

4. How?
• Manufactures, hackers, makers, service providers use following
methods to populate repository.
• Simple: Web form based
• No semantic web knowledge required
• Moderate: Graph upload tool
• Supported file types RDF, json-ld, n3
• API upload tool (Debatable)
• REST interface to bunch upload
• Semantic search engine
• URI endpoint to access graph information
www.osiot.org

5. Semantic graph search
SPARQL queries
Web form
Web based graph upload tool
API upload tool
Authentication
3rd Party application
+ Services
Neo4j
Graph DB
Django
+
django4neo
Python
SPARQL
bridge
Python API
endpoint
Graph Input
Search
Website Front-End
Things
(equipped with
IoT-toolkit)
Back-End
www.osiot.org

6. What’s in there for me?
• Sensor and platforms
• Low storage, computation resource
• Energy efficiency
• Enables semantic description and graph
• Enables Intelligent applications
• Communication and Networking
• Low payload
• Supplements IoT-toolkit
• IoT application service
• Sematic web enabled advanced application
• Semantic reasoning
• Simplified sensor discovery
www.osiot.org