Personalized Reputation Management in P2P Networks (2009)
Paul Alex, Ru Chirita, Wolfgang Nejdl, Mario Schlosser, Oana Scurtu
Abstract. P2P networks have become increasingly popular in the recent years. However, their open, distributed and anonymous nature makes them very vulnerable against malicious users who provide bad...
Publish/Subscribe for RDF-based P2P Networks (2008)
Paul Alex, Ru Chirita, Stratos Idreos, Manolis Koubarakis, Wolfgang Nejdl
Abstract. Publish/subscribe systems are an alternative to query based systems in cases where the same information is asked for over and over, and where clients want to get updated answers for the...
Dedicated to the memory of my grandfather Paul Alexander (2008)
Doron Zeilberger, Dr. Paul Alex, Dr. Phil Rer, Nat Chemie
This is my first visit to Leipzig. My main reasons for coming here are personal: to look up the graves and dwellings of my great-grandparents, Salomon and Rebecka Alexander, and to explore the city...
Designing semantic publish/subscribe networks using super-peers (2008)
Paul Alex, Ru Chirita, Stratos Idreos, Manolis Koubarakis, Wolfgang Nejdl
Summary. Publish/subscribe systems are an alternative to query-based systems in cases where the same information is asked for over and over, and where clients want to get updated answers for the same...
Desktop Context Detection Using Implicit Feedback ABSTRACT (2008)
Paul Alex, Ru Chirita, Stefania Costache, Julien Gaugaz, Wolfgang Nejdl
The personal information stored on the desktop usually reaches huge dimensions nowadays. Its handling is even more difficult, taking into account complex environments and tasks we work with. An...
ABSTRACT Site Level Noise Removal for Search Engines (2008)
André Luiz, Costa Carvalho, Paul Alex, Ru Chirita, Pável Calado, ...
The currently booming search engine industry has determined many online organizations to attempt to artificially increase their ranking in order to attract more visitors to their web sites. At the...
Paul Alex, Ru Chirita, Stefania Costache, Siegfried H, Wolfgang Nejdl
The success of the Semantic Web depends on the availability of Web pages annotated with metadata. Free form metadata or tags, as used in social bookmarking and folksonomies, have become more and more...
Semantically Enhanced Searching and Ranking on the Desktop (2008)
Paul Alex, Ru Chirita, Stefania Ghita, Wolfgang Nejdl, Raluca Paiu
Abstract. Existing desktop search applications, trying to keep up with the rapidly increasing storage capacities of our hard disks, offer an incomplete solution for the information retrieval. In this...
P-tag: Large scale automatic generation of personalized annotation tags for the web (2007)
Paul Alex, Ru Chirita, Stefania Costache, Siegfried H, Wolfgang Nejdl
The success of the Semantic Web depends on the availability of Web pages annotated with metadata. Free form metadata or tags, as used in social bookmarking and folksonomies, have become more and more...
Site Level Noise Removal for Search Engines (2006)
Paul-Alexandru Chirita, Costa Carvalho, Pavel Calado, Paul Alex, Ru Chirita, ...
The currently booming search engine industry has determined many online organizations to attempt to artificially increase their ranking in order to attract more visitors to their web sites. In the...
The beagle++ toolbox: Towards an extendable desktop search architecture (2006)
Ingo Brunkhorst, Paul Alex, Ru Chirita, Stefania Costache, Julien Gaugaz, Ekaterini Ioannou, ...
Abstract. The rapidly increasing quantity and diversity of data stored on our PCs made locating information in this environment very difficult. Consequently, recent research has focussed on building...
Semantically Enhanced Searching and Ranking on the Desktop (2005)
Paul Alexandru Chirita, Paul Alex, Ru Chirita, Stefania Costache, Wolfgang Nejdl, Raluca Paiu
Existing desktop search applications, trying to keep up with the rapidly increasing storage capacities of our hard disks, o#er an incomplete solution for information retrieval. In this paper we...
Semantically Enhanced Searching and Ranking (2005)
On The Desktop, Paul Alex, Ru Chirita, Stefania Ghita, Wolfgang Nejdl, Raluca Paiu
Existing desktop search applications, trying to keep up with the rapidly increasing storage capacities of our hard disks, o#er an incomplete solution for the information retrieval. In this paper we...
Designing Semantic Publish/Subscribe Networks Using Super-Peers (2005)
Paul-Alexandru Chirita, Paul Alex, Ru Chirita, Stratos Idreos, Manolis Koubarakis, Wolfgang Nejdl
this paper, a very important contribution of SIENA is the adoption of a P2P model of interaction among servers (super-peers in our terminology) and the exploitation of traditional network algorithms...
Search Strategies for Scientific Collaboration Networks (2005)
Paul Alexandru Chirita, Paul Alex, Ru Chirita, Andrei Damian, Wolfgang Nejdl, Wolf Siberski
Can we improve P2P search by looking into our social network? In this paper, we argue that P2P networks built upon specific communities (e.g., scientific social networks) could achieve such a goal,...
Activity Based Metadata for Semantic Desktop Search (2004)
Paul Alexandru Chirita, Paul Alex, Ru Chirita, Rita Gavriloaie, Stefania Ghita, Wolfgang Nejdl, ...
With increasing storage capacities on current PCs, searching the World Wide Web has ironically become more efficient than searching one's own personal computer. The recently introduced desktop...
Publish/Subscribe for RDF-based P2P Networks (2004)
Paul Alexandru Chirita, Paul Alex, Ru Chirita, Stratos Idreos, Manolis Koubarakis, Wolfgang Nejdl
Publish/subscribe systems are an alternative to query based systems in cases where the same information is asked for over and over, and where clients want to get updated answers for the same query...
Knowing Where to Search: Personalized Search Strategies for Peers In P2P Networks (2004)
Paul Alexandru Chirita, Paul Alex, Ru Chirita, Wolfgang Nejdl, Oana Scurtu
Optimizing and focusing search and results ranking in P2P networks becomes more and more important with the increasing size of these networks. Even though a few approaches have already started to...
PROS: A Personalized Ranking Platform for Web Search (2004)
Paul Alexandru Chirita, Paul Alex, Ru Chirita, Daniel Olmedilla, Wolfgang Nejdl
Current search engines rely on centralized page ranking algorithms which compute page rank values as single (global) values for each Web page. Recent work on topic-sensitive PageRank [6] and...
Personalized Reputation Management in P2P Networks (2004)
Paul-Alexandru Chirita, Paul Alex, Ru Chirita, Wolfgang Nejdl, Mario Schlosser, Oana Scurtu
P2P networks have become increasingly popular in the recent years.
Activity Based Metadata for Semantic Desktop Search (2004)
Paul Alexandru Chirita, Paul Alex, Ru Chirita, Rita Gavriloaie, Stefania Ghita, Wolfgang Nejdl, ...
With increasing storage capacities on current PCs, searching the World Wide Web has ironically become more efficient than searching one's own personal computer. The recently introduced desktop...
Finding Related Pages Using the Link Structure of the WWW (2004)
Paul-Alexandru Chirita, Paul Alex, Ru Chirita, Daniel Olmedilla, Wolfgang Nejdl
Most of the current algorithms for finding related pages are exclusively based on text corpora of the WWW or incorporate only authority or hub values of pages. In this paper, we present HubFinder, a...
Finding Related Pages Using the Link Structure of the WWW (2004)
Paul Alexandru Chirita, Paul Alex, Ru Chirita, Daniel Olmedilla, Wolfgang Nejdl
Most of the current algorithms for finding related pages are exclusively based on text corpora of the WWW or incorporate only authority or hub values of pages. In this paper, we present HubFinder, a...
PROS: A Personalized Ranking Platform for Web Search (2003)
Paul-Alexandru Chirita, Paul Alex, Ru Chirita, Daniel Olmedilla, Wolfgang Nejdl
Current search engines rely on centralized page ranking algorithms which compute page rank values as single (global) values for each Web page. Recent work on topic-sensitive PageRank [6] and...
Multiuser projection receivers (1996)
Christian Schlegel, Sumit Roy, Paul Alex, Zengjun Xiang
Abstract---A new multi-user receiver for synchronous CDMA systems with error control coding is proposed. The receiver achieves interference cancellation by projecting the undesired users onto the...