Result Details
Real-Time Indexing of Complex Data Streams
Drozd Michal, Ing.
Šebek Michal, Ing., Ph.D.
Zendulka Jaroslav, doc. Ing., CSc., DIFS (FIT)
The paper deals with indexing of a complex type data
stream stored in a database. We present a novel indexing schema and framework referred to as ReTIn (Real-Time Indexing), the objective of which is to allow indexing of complex data arriving as a stream to a database with respect to soft real-time constraints met with some level of confidence for the maximum duration of insert and select operations. The idea of ReTIn is a combination of a sequential access to the most recent data and an index-based access to less recent data stored in the database. The collection of statistics makes balancing of indexed and unindexed parts of the database efficient. We have implemented ReTIn using PostgreSQL DBMS and its GIN index. Experimental results presented in the paper demonstrate some properties and advantages of our approach.
data stream indexing, soft real-time constraint, ReTIn framework
@inproceedings{BUT113485,
author="Petr {Chmelař} and Michal {Drozd} and Michal {Šebek} and Jaroslav {Zendulka}",
title="Real-Time Indexing of Complex Data Streams",
booktitle="Innovations and Advances in Computing, Informatics, Systems Sciences, Networking and Engineering",
year="2015",
series="Lecture Notes in Electrical Engineering",
pages="371--378",
publisher="Springer International Publishing",
address="Cham",
doi="10.1007/978-3-319-06773-5",
isbn="978-3-319-06772-8",
url="http://link.springer.com/book/10.1007/978-3-319-06773-5"
}Security-Oriented Research in Information Technology, MŠMT, Institucionální prostředky SR ČR (např. VZ, VC), MSM0021630528, start: 2007-01-01, end: 2013-12-31, running
Tools and Methods for Video and Image Processing for the Fight against Terrorism, MV, Program bezpečnostního výzkumu České republiky 2010 - 2015, VG20102015006, start: 2010-10-01, end: 2015-09-30, completed