Reliable multicast protocols can strongly simplify the design of distributed applications. However, it is hard to sustain a high multicast throughput when groups are large and heterogeneous. In an attempt to overcome this limitation, previous work has focused on weakening reliability properties. In this paper we introduce a novel reliability model that exploits semantic knowledge to decide in w...

This paper revisits the relationship between the form of referring expressions and the assumed salience of their referents. Previous work suggests that pronouns must refer to highly salient discourse entities, while descriptive noun phrases should be used to refer to less salient items. Our claim is that the referring expression itself is only part of this relationship, since it is not the only...

While the Web makes an increasing number of ontologies widely available for applications, how to discover ontologies becomes a more challenging issue. Existing approaches are mainly based on keywords and metadata information of ontologies, rather than semantic entailments of ontologies. In this paper, we present an ontology search engine, ONTOSEARCH2, which provides three approaches to searchin...

We present a novel method for accurate and efficient upsampling of sparse depth data, guided by high-resolution imagery. Our approach goes beyond the use of intensity cues only and additionally exploits object boundary cues through structured edge detection and semantic scene labeling for guidance. Both cues are combined within a geodesic distance measure that allows for boundary-preserving dep...

SEMANTICALLY-SMART DISK SYSTEMS Muthian Sivathanu Robust and efficient storage of data is a prerequisite of current and future computer systems. To keep pace with both rapid changes in technology as well as increasing demands from applications and users alike, storage systems must evolve in new and interesting ways. Unfortunately, storage systems today have a problem: the range of functionality...