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November 28, 2023

Efficiently unlock secondary KeePass databases when working with shared password safes

Keepass can open multiple databases simultaneously on tabs. This is useful e.g. when maintaining one personal database and one or more further databases e.g. shared with different teams or projects. …

Roland Stühmer
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June 20, 2019

Inspiring results at the HPI Hackathon 2019 about://social.good in Potsdam

Inspiring results at the HPI Hackathon 2019 about://social.good in Potsdam (https://hackhpi.org) – impressive prototypes generated in less than a day around IBM-sponsored challenges on fake news …

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February 27, 2017

BDSDST 2017 : 3rd International Workshop on Big Data, Smart Data and Semantic Technologies

Call for Papers: Consider submitting to the 3rd International Workshop on Big Data, Smart Data and Semantic Technologies, co-located with the INFORMATIK 2017 conference in Chemitz, Germany. The …

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June 8, 2015

Special Issue on Stream Processing, Call for Papers

Another call for papers: the Journal of Web Semantics invites submissions to a special issue on Stream Processing to be edited by Monika Solanki and Jean-Paul Calbimonte. Submissions are due by 1st …

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April 10, 2015

Workshop on Situation Recognition (SIREMTI2015)

UPDATE 2: The deadline for submissions was extended to 30th September, 2015. UPDATE: The workshop was relocated to MobiCASE2015 conference in November 2015, Berlin, Germany. The deadline for …

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April 1, 2015

Streaming System Benchmarks

Streaming systems are complex; apart from correct functionality (which might differ between implementations and vendors) many non-functional aspects can be benchmarked such as memory comsumption, …

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January 23, 2015

RDF Stream Processing Workshop at ESWC2015, Call for Papers

In conjunction with the 12th Extended Semantic Web Conference (ESWC 2015). May 31th, 2015 in Portoroz, Slovenia. From the Call for Papers: The goal of this workshop is to bring together interested …

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December 12, 2014

An RDF Model for Events

Why do we need an event model? Many RDF streaming systems discussed have little or no model for the real-time data they ingest. These systems make the lowest common assumptions about the structure of …

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October 2, 2014

RDF Access Control

There are several approaches to modelling access control using RDF. The approaches use RDF as a modelling language for permissions linking users with user’s rights on the one hand and on the …

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October 2, 2014

Real-time Web

Behind the idea of the Real-time Web is the motivation of the Web being situation-aware and in real-time. This idea was developed as a grand challenge 1 for the field of event processing. The purpose …

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October 1, 2014

Definition of "Event" for Event Processing

I collected some definitions of event from the view of event processing research and practise. The emphasis is mine: (Etzion & Niblett 2010) 1 wrote: An event is an occurrence within a particular …

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October 1, 2014

Immutability and Event Derivation in RDF

“In many event processing systems […] events are immutable” 1. This stems from the definition of what an event is: “An event is an occurrence within a particular system or …

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October 1, 2014

Stream Punctuation and RDF Stream Processing

Definition by Tucker et al. 1 and Maier et al. 2: ‘‘A punctuation is a pattern p inserted into the data stream with the meaning that no data item i matching p will occur further on in the …

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December 8, 2013

Highlights from Research Project PLAY

My research project PLAY has had its final review meeting on Tuesday, November 26th, 2013. Notable highlights from the project are: Use of open Web Standards for event modelling, pattern modelling, …

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January 12, 2012

Tutorial on Complex Event Processing

I gave a tutorial about Complex Event Processing and more specifically the PLAY semantic event format and query language at the Winter School on Knowledge Technologies for Complex Business …

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>_ www.roland-stuehmer.de

Interested in Distributed Complex Event Processing, Semantic Web Technologies. I am Roland Stühmer employed by IBM, views here are my own.

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