The availability of billions of facts represented in RDF on the Web provides novel opportunities for data discovery and access. In particular, keyword search and question answering approaches enable even lay people to access this data. However, the interpretation of the results of these systems, as well as the navigation through these results, remains challenging. In this paper, we present Genesis, a generic RDF data access interface. Genesis can be deployed on top of any knowledge base and search engine with minimal effort and allows for the representation of RDF data in a layperson-friendly way. This is facilitated by the modular architecture for reusable components underlying our framework. Currently, these include a generic search back-end, together with corresponding interactive user interface components based on a service for similar and related entities as well as verbalization services to bridge between RDF and natural language.

1. GENESIS
A Generic RDF Data Access Interface
Tim Ermilov1,2 Diego Moussallem2 Ricardo Usbeck1,2 Axel-Cyrille
Ngonga Ngomo1,2
1Data Science Group - University of Paderborn, Germany
2Department of Computer Science, AKSW - University of Leipzig
26 August 2017 - WI
Tim Ermilov, Diego Moussallem Ricardo Usbeck, Axel-Cyrille Ngonga Ngomo (University of Leipzig)GENESIS 26 August 2017 - WI 1 / 16

2. Outline
1 Introduction
Motivation
Solution
2 GENESIS
Architecture
3 Evaluation
Controlled evaluation
Standard Usability Score
4 Conclusion and Future Work
Tim Ermilov, Diego Moussallem Ricardo Usbeck, Axel-Cyrille Ngonga Ngomo (University of Leipzig)GENESIS 26 August 2017 - WI 2 / 16

3. Introduction
Current State of Linked Data Cloud
Large number of datasets
http://stats.lod2.eu
150+ billion triples
⇡ 0.5 billion links
Tim Ermilov, Diego Moussallem Ricardo Usbeck, Axel-Cyrille Ngonga Ngomo (University of Leipzig)GENESIS 26 August 2017 - WI 3 / 16

4. Solution
A generic interface which is able browsing through the Web of Data
Our goals:
1 Be as intuitive as possible
2 Allow exploring resources using
di↵erent strategies
3 Be generic enough to be
deployed over any knowledge
base
Tim Ermilov, Diego Moussallem Ricardo Usbeck, Axel-Cyrille Ngonga Ngomo (University of Leipzig)GENESIS 26 August 2017 - WI 4 / 16

5. GENESIS
Architecture of GENESIS
Tim Ermilov, Diego Moussallem Ricardo Usbeck, Axel-Cyrille Ngonga Ngomo (University of Leipzig)GENESIS 26 August 2017 - WI 5 / 16

6. Example of services
Verbalizer - Summary generated automatically
Tim Ermilov, Diego Moussallem Ricardo Usbeck, Axel-Cyrille Ngonga Ngomo (University of Leipzig)GENESIS 26 August 2017 - WI 6 / 16

7. Example of services
Semantic Similarity
Tim Ermilov, Diego Moussallem Ricardo Usbeck, Axel-Cyrille Ngonga Ngomo (University of Leipzig)GENESIS 26 August 2017 - WI 7 / 16

8. GENESIS
http://genesis.aksw.org
Tim Ermilov, Diego Moussallem Ricardo Usbeck, Axel-Cyrille Ngonga Ngomo (University of Leipzig)GENESIS 26 August 2017 - WI 8 / 16

9. Evaluation
Comparison among GENESIS, Wikipedia and Aemoo.
Controlled evaluation - 10 users
The time it took each user to answer the question
The length of the click path the answer
The satisfaction level of the users using each tool
User interface - 20 users - based on 10 questions
SUS-Score - is an inexpensive, yet e↵ective tool for assessing the
usability of a product
Tim Ermilov, Diego Moussallem Ricardo Usbeck, Axel-Cyrille Ngonga Ngomo (University of Leipzig)GENESIS 26 August 2017 - WI 9 / 16

10. Controlled evaluation
Average per second to answer
QALD-5 questions using DBpedia
Q1 What is the birth date of the actor who played Phoebe in the television show
Charmed?
Q2 Where was the author of WikiLeaks born?
Q3 What are the other businesses of the owner of Universal Studios?
Tim Ermilov, Diego Moussallem Ricardo Usbeck, Axel-Cyrille Ngonga Ngomo (University of Leipzig)GENESIS 26 August 2017 - WI 10 / 16

11. Controlled evaluation
Click path length
QALD-5 questions using DBpedia
Q1 What is the birth date of the actor who played Phoebe in the television show
Charmed?
Q2 Where was the author of WikiLeaks born?
Q3 What are the other businesses of the owner of Universal Studios?
Tim Ermilov, Diego Moussallem Ricardo Usbeck, Axel-Cyrille Ngonga Ngomo (University of Leipzig)GENESIS 26 August 2017 - WI 11 / 16

12. Controlled evaluation
User satisfaction
QALD-5 questions using DBpedia
Q1 What is the birth date of the actor who played Phoebe in the television show
Charmed?
Q2 Where was the author of WikiLeaks born?
Q3 What are the other businesses of the owner of Universal Studios?
Tim Ermilov, Diego Moussallem Ricardo Usbeck, Axel-Cyrille Ngonga Ngomo (University of Leipzig)GENESIS 26 August 2017 - WI 12 / 16

13. Evaluation of the user interface
Overall score: 86.2 (scale between 0 and 100)
The vertical bars show the standard deviation
Tim Ermilov, Diego Moussallem Ricardo Usbeck, Axel-Cyrille Ngonga Ngomo (University of Leipzig)GENESIS 26 August 2017 - WI 13 / 16

14. Conclusion
Conclusion:
1 GENESIS is flexible and extensible.
2 Better quality than the state-of-the-art (Aemoo)
3 Comparable quality to Web Documents (Wikipedia)
Future works:
1 To improve the time performance for similarity service
2 Work on multilingual summary interface.
Tim Ermilov, Diego Moussallem Ricardo Usbeck, Axel-Cyrille Ngonga Ngomo (University of Leipzig)GENESIS 26 August 2017 - WI 14 / 16

15. GENESIS
Diego Moussallem
E-mail:
moussallem@informatik.uni-leipzig.de
Web Page:
http://aksw.org/DiegoMoussallem
Twitter:
@DiegoMoussallem
) Github:
https://github.com/dice-group/GENESIS
) Website: https://genesis.aksw.org
Tim Ermilov, Diego Moussallem Ricardo Usbeck, Axel-Cyrille Ngonga Ngomo (University of Leipzig)GENESIS 26 August 2017 - WI 15 / 16

16. Bibliography I
Ermilov, Ivan et al.
LODStats: The data web census dataset
International Semantic Web Conference, 2016.
SemWeb2NL repository
https://github.com/AKSW/SemWeb2NL
Usbeck, Ricardo et al.
AGDISTIS-graph-based disambiguation of named entities using linked
data.
International Semantic Web Conference, 2014.
Ermilov, Tim et al.
GENESIS A Generic RDF Data Access Interface
International Conference on Web Intelligence, 2017.
Tim Ermilov, Diego Moussallem Ricardo Usbeck, Axel-Cyrille Ngonga Ngomo (University of Leipzig)GENESIS 26 August 2017 - WI 16 / 16