Concept

Apache Spark

Publications associées (42)

Systematic Approach to Multi-layer Parallelisation of Time-based Stream Aggregation under Ingest Constraints in the Cloud

With its real-time capabilities, stream processing is popular for applications like anomaly detection for residential gateways and analytics for business intelligence. Just as other areas of computing, there has been an inevitable trend to shift stream pro ...

2014

X-Stream: Edge-centric Graph Processing using Streaming Partitions

Willy Zwaenepoel, Amitabha Roy, Ivo Mihailovic

X-Stream is a system for processing both in-memory and out-of-core graphs on a single shared-memory machine. While retaining the scatter-gather programming model with state stored in the vertices, X-Stream is novel in (i) using an edge-centric rather than ...

ACM2013

On Leveraging Crowdsourcing Techniques for Schema Matching Networks

Karl Aberer, Quoc Viet Hung Nguyen, Thành Tâm Nguyên, Zoltán Miklós

As the volumes of shared datasets are likely to soar, there is high demand of establishing the interlinking between these public datasets. To achieve this, we need to match their schemas altogether. Moreover, to extract useful pieces of information, ones m ...

2013

From big smartphone data to worldwide research: The Mobile Data Challenge

Daniel Gatica-Perez, Imad Aad, Julien Eberle, Olivier Dousse

This paper presents an overview of the Mobile Data Challenge (MDC), a large-scale research initiative aimed at generating innovations around smartphone-based research, as well as community-based evaluation of mobile data analysis methodologies. First, we r ...

Elsevier Science Bv2013

Spatiotemporal Coherence Tracking

Mohammad Alisafaee

Chip-multiprocessors require a coherence directory to track data sharing and order accesses to the shared data. Scaling coherence directories to support a large number of cores is challenging due to excessive area requirements of the directories. The state ...

2012

CoRD: A Collaborative Framework for Distributed Data Race Detection

George Candea, Cristian Zamfir, Baris Can Cengiz Kasikci

Modern concurrent software is riddled with data races and these races constitute the source of many problems. Data races are hard to detect accurately before software is shipped and, once they cause failures in production, developers find it challenging to ...

Usenix2012

Local Model Checking

Rachid Guerraoui, Maysam Yabandeh

Current approaches to model checking distributed systems reduce the problem to that of model checking centralized systems: global states involving all nodes and communication links are systematically explored. The frequent changes in the network element of ...

2011

Model Checking a Networked System Without the Network

Rachid Guerraoui, Maysam Yabandeh

2011

Toward Massive Query Optimization in Large-Scale Distributed Stream Systems

Karl Aberer

Existing distributed stream systems adopt a tightly-coupled communication paradigm and focus on fine-tuning of operator placements to achieve communication efficiency. This kind of approach is hard to scale (both to the nodes in the network and the users). ...

2008

Hardware-efficient steering matrix computation architecture for MIMO communication systems

Carl Christian Sten Dominic Senning, Christoph Studer

Beamforming (BF) improves the error rate performance of multiple-input multiple-output (MIMO) wireless communication systems by spatial separation of the transmitted data streams. Spatial separation is achieved by multiplication of the transmit vector by a ...

2008

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