Big science data necessitates the requirement to incorporate state-of-the-art technologies and processes into science workflows. When transferring “big data”, the network infrastructure connects sites for storage, analysis and data transfer. A component that is often overlooked within the network is a robust measurement and testing infrastructure that verifies all network components are functio...

A group of bachelor students in information science at the University of Groningen applied off-the-shelf tools to the detection of events on Twitter, focusing on Dutch. Systems were built in four socially relevant areas: sports, emergencies, local life, and news. We show that (i) real time event detection is a feasible and suitable way for students to learn and employ data mining and analysis t...

There is a fundamental discrepancy between the targeted and actual users of current analytics frameworks. Most systems are designed for the challenges of the Googles and Facebooks of the world— processing petabytes of data distributed across large cloud deployments consisting of thousands of cheap commodity machines. Yet, the vast majority of users analyze relatively small datasets of up to sev...

We present an attempt at a coherent vision of an end-to-end translingual information retrieval system. We begin by presenting a sample of the broad range of possibilities, and the results of some initial work comparing the diierent approaches. We then present an overall workstation architecture, followed by two possible approaches to the actual translingual IR stage presented in detail. Ranking...

We previously proposed a packed graphical representation to succinctly represent a huge number of alternative semantic representations of a given sentence. We also showed that this representation could improve text interpretation accuracy considerably because the system could postpone resolving ambiguity until more evidence accumulates. This paper discusses our plan to build an end-to-end text ...

Consider a communication link where the last hop is wireless and TCP is used as transport protocol over the end-to-end connection. We study the capability of the link layer to hide losses over the wireless link to TCP in spite of the time varying transmission quality. We focus on linklayer retransmission mechanisms and determine their parameter setting in such a way that a reliable communicatio...

This paper describes our TTI-COIN system that participated in SemEval-2017 Task 10. We investigated appropriate embeddings to adapt a neural end-to-end entity and relation extraction system LSTMER to this task. We participated in the full task setting of the entity segmentation, entity classification and relation classification (scenario 1) and the setting of relation classification only (scena...

Submarine cable faults are not uncommon events in the Internet today. However, their impacts on end-to-end path quality have received almost no attention. In this paper, we report path-quality measurement results for a recent SEA-ME-WE 4 cable fault in 2010. Our measurement methodology captures the path-quality degradation due to the cable fault, in terms of delay, asymmetric packet losses, and...

Massively parallel storage systems are becoming more and more prevalent on HPC systems due to the emergence of a new generation of data-intensive applications. To achieve the level of I/O throughput and capacity that is demanded by data intensive applications, storage systems typically deploy a large number of storage devices (also known as LUNs or data stores). In doing so, parallel applicatio...