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Skip graphs are a novel distributed data structure, based on skip lists, that provide the full functionality of a balanced tree in a distributed system where resources are stored in separate nodes that may fail at any time. They are designed for use in searching peer-to-peer systems, and by providing the ability to perform queries based on key ordering,(More)
In this paper, we explore the use of domain-independent and domain-specific ontologies to find matching service descriptions. The domain-independent relationships are derived using an English thesaurus after tokenization and part-of-speech tagging. The domain-specific ontological similarity is derived by an inference on the semantic annotations associated(More)
One of the principal problems in Information Lifecycle Management is to align the business value of data with the most cost-effective and appropriate storage infrastructure. In this paper, we present ACE: a framework of tools for ILM, that classifies data and storage resources, and generates a data placement plan for informed utilization of the available(More)
[A02] K Aberer. Scalable data access in peer-to-peer systems using unbalanced search trees. E Pavlov. A generic scheme for building overlay networks in adversarial scenarios. process on the hypercube with applications to peer-to-peer networks. Proc. [AN86] M Aizenman and C M Newman. Discontinuity of the percolation density in one dimensional 1/|x − y| 2(More)
In this paper, we address the problem of searching schema databases for semantically-related schemas. We first give a method of finding semantic similarity between pair-wise schemas based on tokenization, part-of-speech tagging, word expansion, and ontology matching. We then address the problem of indexing the schema database through a semantic hash table.(More)
In modern biology, one of the most important research problems is to understand how protein sequences fold into their native 3D structures. To investigate this problem at a high level, one wishes to analyze the protein landscapes, i.e., the structures of the space of all protein sequences and their native 3D structures. Perhaps the most basic computational(More)