Sebastian Michel

Cette personne n’est plus à l’EPFL

Publications associées (17)

À propos
Confidentialité
Mentions légales

Graph Chatbot

Neighborhood-based Tag Prediction

Karl Aberer, Philippe Cudré-Mauroux, Adriana Budura, Sebastian Michel

We consider the problem of tag prediction in collaborative tagging systems where users share and annotate resources on the Web. We put forward HAMLET, a novel approach to automatically propagate tags along the edges of a graph which relates similar documen ...

2009

Processing Publish/Subscribe Queries over Distributed Data Streams

Karl Aberer, Sebastian Michel, Oana Anca Jurca, Alexandre Herrmann

2009

Sensor Metadata Management and its Application in Collaborative Environmental Research

Karl Aberer, Michael Lehning, Sebastian Michel

This paper considers metadata generation and tracking in a collaborative environment where users publish raw sensor data in the form of virtual sensors and post-process data by means of filtering, modeling, or query processing techniques. In the metadata s ...

2008

From Web 1.0 to Web 2.0 and back - How did your Grandma use to tag?

Karl Aberer, Gleb Skobeltsyn, Sebastian Michel, Adriana Budura

We consider the applicability of terms extracted from anchortext as a source of Web page descriptions in the form of tags. With a relatively simple and easy-to-use method, we show that anchortext significantly overlaps with tags obtained from the popular t ...

2008

LSH At Large - Distributed KNN Search in High Dimensions

Karl Aberer, Philippe Cudré-Mauroux, Sebastian Michel, Parisa Haghani

We consider K-Nearest Neighbor search for high dimensional data in large-scale structured Peer-to-Peer networks. We present an efficient mapping scheme based on p-stable Locality Sensitive Hashing to assign hash buckets to peers in a Chord-style overlay ne ...

2008

To Tag or Not to Tag ? Harvesting Adjacent Metadata in Large-Scale Tagging Systems

Karl Aberer, Philippe Cudré-Mauroux, Adriana Budura, Sebastian Michel

We present HAMLET, a suite of principles, scoring models and algorithms to automatically propagate metadata along edges in a document neighborhood. As a showcase scenario we consider tag prediction in community-based Web 2.0 tagging applications. Experimen ...

ACM2008

Query Driven Operator Placement for Complex Event Detection over Data Streams

Karl Aberer, Sebastian Michel, Oana Anca Jurca, Alexandre Herrmann

We consider the problem of efficiently processing subscription queries over data streams in large-scale interconnected sensor networks. We propose a scalable algorithm for distributed data stream processing, applicable on top of any platform granting acces ...

2008

Page 2 sur 2