Concept

Query language

Related publications (143)

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Distributed Cache Table: Efficient Query-Driven Processing of Multi-Term Queries in P2P Networks

Gleb Skobeltsyn

The state-of-the-art techniques for processing multi-term queries in P2P environments are query flooding and inverted list intersection. However, it has been shown that due to scalability reasons both methods fail to support full-text search in large scale ...

2006

Distributed Cache Table: Efficient Query-Driven Processing of Multi-Term Queries in P2P Networks

Karl Aberer, Gleb Skobeltsyn

2006

Light-weight Internet-scale Universal Storage

Manfred Hauswirth, Roman Schmidt

Many new applications, for example Wikis, social networks, and distributed recommender systems, require the efficient integration of decentralized and heterogenous data sources at a large scale. In this paper, we present our vision of a universal storage f ...

2006

RoclET – A Tool for Wrestling with OCL Specifications

Slavisa Markovic, Cédric Jeanneret, Leander Eyer

In this paper, we describe the architecture and the functionality of our own OCL tool called RoclET. Besides standard features of OCL tools such as editing of class and object diagrams and parsing of OCL assertions (invariants, pre-/post-conditions), our t ...

2006

Global Sensor Networks

Karl Aberer, Manfred Hauswirth, Ali Salehi

The availability of cheap and smart wireless sensing devices provides unprecedented possibilities to monitor the physical world. On the technical side these devices introduce several original research problems, many of them related to the integration of th ...

2006

Better Relational Queries using For-comprehensions

Gilles Dubochet

For-comprehensions, an operator to apply expressions on selected elements of sets or lists, can replace most of SQL as a query language. I present my current and future work on integrating for-comprehensions for database access in general-purpose programmi ...

2005

Efficient processing of XPath queries with structured overlay networks

Karl Aberer, Manfred Hauswirth, Gleb Skobeltsyn

Non-trivial search predicates beyond mere equality are at the current focus of P2P research. Structured queries, as an important type of non-trivial search, have been studied extensively mainly for unstructured P2P systems so far. As unstructured P2P syste ...

2005

Efficient processing of XPath queries with structured overlay networks

Karl Aberer, Manfred Hauswirth, Gleb Skobeltsyn

2005

An Extensible Query Execution Engine for Supporting New Query Execution Models

Query processing in traditional Database Management Systems (DBMS) has been extensively studied in the literature and adopted in industry. Such success is, in part, due to the performance of their Query Execution En-gines (QEE) for supporting the execution ...

2005

The SLinks Language

Gilles Dubochet

This report presents a prototype interpreter for a simple functional language, called SLinks. The focus of this work is two-fold. One side is the design of a type inference system, based on the Hindley-Milner algorithm, with additional support for record a ...

2005