1. “The need for Semantic Desktop Dataset” L3S and University of Hannover, Germany
Sergey Chernov, Tereza Iofciu, Wolfgang Nejdl, Xuan Zhou (chernov, iofciu, nejdl,
Speaker: Sergey Chernov

2. NEPOMUK: Social Semantic Desktop
NEPOMUK - Networked Environment for Personalized Ontology-based Management of Unified Knowledge, about 20 participating organizations with budget over 11 mln euros
- Desktop: Help individuals in managing information on their PC
- Semantic: Make content available to automated processing
- Social: Enable exchange across individual boundaries
Person
friend
Event
Topic
acquaintance
Person
WebSite
Document
colleague
Image
Personal Semantic Web:
a semantically enlarged
Social protocols
NEPOMUK enabled
intimate supplement to memory
and distributed search
peers
Sergey Chernov, Tereza Iofciu, Wolfgang Nejdl, Xuan Zhou
01/05/19

3. NEPOMUK: The Society-Scale Semantic Web Application
Today necessary technologies & communities exist:
Standardized metadata: Semantic Web
Scalable distributed infrastructure: P2P Computing
Knowledge articulation and interaction: Desktop Technology
Human centric information exchange: Online Social Networks
Memex (Vannevar Bush) A memex is "a device in which an individual stores all his books, records, and communications”.
Open Hypertext System (Doug Engelbart) “The open hyperdocument system is a standards-based, open source framework for developing collaborative, knowledge management applications.”
WWW (Tim Berners-Lee) “There was a second part of the dream[…] we could then use computers to help us analyse it, make sense of what we re doing, where we individually fit in, and how we can better work together.”
Challenge: Extension & merging of research streams
Ontology driven distributed Social Networking
Ontology driven Social Networking
Semantic Desktop
Social Semantic Desktop
P2P networks
Semantic Web
Desktop/
Wiki
Semantic P2P
Social Networking
Phase 1
Phase 2
Phase 3
Sergey Chernov, Tereza Iofciu, Wolfgang Nejdl, Xuan Zhou
01/05/19

4. A scenario for desktop search
Xuan can search for “the articles about multimedia conferences and workshops, which are titled “call for papers” or “upcoming events” and were recommended by Mounia”.
Query: multimedia workshop /title upcoming events /receivedFrom Mounia
affiliatedTo fn
uid:123
Queen Mary Uni
Mounia Lalmas
family
receivedFrom
given
Lalmas
accessedFrom
msgid:00465
Mounia
Upcoming Events
storedFrom
publication
title
type
publishedIn
c:\inex1.8\xml\mu\1998\u40c2.xml
IEEE MULTIMEDIA 1999
issn X
Multimedia Computing and Networking 1999 (MMCN 99) … This conference … multimedia systems…
year
text
1998
Sergey Chernov, Tereza Iofciu, Wolfgang Nejdl, Xuan Zhou
01/05/19

5. Using the INEX dataset for experiments with Desktop Search1
FULL-TEXT
1 XQL and Proximal Nodes Ricardo Baeza-Yates Gonzalo Navarro We consider the recently proposed language … Introduction Searching on structured text is becoming more important …
XML SNIPPET
<paper id=”1”>
<title> XQL and Proximal Nodes </title>
<author> Ricardo Baeza-Yates </author>
< author > Gonzalo Navarro </ author >
<abstract> We consider the recently proposed language …</ abstract> <section name=”Introduction”>
Searching on structured text is becoming more important …
<subsection name=“Related Work”> The XQL language …
</subsection>
</section> …
<cite xmlns:xlink=” …</cite>
</paper>
TITLE
XQL and Proximal Nodes
CREATOR
Ricardo Baeza-Yates Gonzalo Navarro
ABSTRACT
We consider the recently proposed language …
CITATION …
//*[about(.//au, Ricardo Baeza-Yates)
and about(., xql proximal nodes)]
/creator Ricardo Baeza-Yates AND xql proximal nodes
1 Sergey Chernov, Tereza Iofciu, and Wolfgang Nejdl, Integrating Metadata and Full-Text Search on the Desktop, Technical Report, 2005.
Sergey Chernov, Tereza Iofciu, Wolfgang Nejdl, Xuan Zhou
01/05/19

6. Desktop Metadata Missing from INEX
StoredFrom - Web links as sources of publications
ReceivedFrom - activity information, s containing publications
Annotations - annotations (from sender)
SearchKeyword - Search keywords, which were used at Web search engine to find the document
OpenLast, MovedFrom - User action history in regard to the publications
Annotation - User annotations
Sergey Chernov, Tereza Iofciu, Wolfgang Nejdl, Xuan Zhou
01/05/19

7. Challenges for Designing a Dataset for Desktop
Data obtained through logging
Pros: real-data
Cons: privacy issues, high level of user cooperation is required, low-scalability
Data created through simulations
Pros: scalable, easy-to-modify, cheap, less restrictions regarding privacy , existing datasets like INEX or Enterprise Track can be re-used
Cons: can be based on wrong assumptions
Sergey Chernov, Tereza Iofciu, Wolfgang Nejdl, Xuan Zhou
01/05/19

8. Our suggestion
We invite everyone to collaborate in creating a dataset for desktop search
It would be nice to consider additional metadata when designing new INEX collection
Sergey Chernov, Tereza Iofciu, Wolfgang Nejdl, Xuan Zhou
01/05/19