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DeltaTree: A Locality-aware Concurrent Search Tree
(Journal article; Tidsskriftartikkel; Peer reviewed, 2015-06-15)
Like other fundamental abstractions for high-performance
computing, search trees need to support both high concurrency
and data locality. However, existing locality-aware
search trees based on the van Emde Boas layout (vEB-based
trees), poorly support concurrent (update) operations.
We present DeltaTree, a practical locality-aware concurrent
search tree that integrates both locality-optimization ...
Gesture-Based, Touch-Free Multi-User Gaming on Wall-Sized, High-Resolution Tiled Displays
(Journal article; Tidsskriftartikkel; Peer reviewed, 2008)
Embarrassingly Distributed Computing for Symbiotic Weather Forecasts
(Journal article; Tidsskriftartikkel; Peer reviewed, 2013)
Efficient concurrent search trees using portable fine-grained locality
(Journal article; Tidsskriftartikkel; Peer reviewed, 2019-01-14)
Concurrent search trees are crucial data abstractions widely used in many important systems such as databases, file systems and data storage. Like other fundamental abstractions for energy-efficient computing, concurrent search trees should support both high concurrency and fine-grained data locality in a platform-independent manner. However, existing portable fine-grained locality-aware search trees ...
Flexible Devices for Arctic Ecosystems Observations
(Journal article; Tidsskriftartikkel; Peer reviewed, 2017-11-26)
<p>Devices for observing the environment range from basic sensor systems, like step-counters, through wild-life cameras, with limited processing capabilities, to more capable devices with significant processing, memory and storage resources. Individual usage domains can benefit from a range of functionalities in these devices including flexibility in prototyping, on- device analytics, network roaming, ...
Experiences Building and Deploying Wireless Sensor Nodes for the Arctic Tundra
(Journal article; Tidsskriftartikkel, 2021-08-02)
The arctic tundra is most sensitive to climate change. The change can be quantified from observations of the fauna, flora and weather conditions. To do observations at sufficient spatial and temporal resolution, ground-based observation nodes with sensors are needed. However, the arctic tundra is resource-limited with regards to energy, data networks, and humans. There are also regulatory and practical ...
Scalability of Distributed Version Control Systems
(Journal article; Tidsskriftartikkel, 2017-11-26)
<p>Distributed version control systems are popular for storing source code, but they are notoriously ill suited for storing large binary files.
<p>We report on the results from a set of experiments designed to characterize the behavior of some widely used distributed version control systems with respect to scaling. The experiments measured commit times and repository sizes when storing single files ...
pVD - Personal Video Distribution
(Journal article; Tidsskriftartikkel, 2013-11-25)
A user has several personal computers, including mobile phones, tablets, and laptops, and needs to watch live camera feeds from and videos stored at any of these computers at one or more of the others. Industry solutions designed for many users, computers, and videos can be complicated and slow to apply. The user must typically rely on a third party service or at least log in. The Personal Video ...