Pattern recognition and event detection on IoT data-streams

C Karras, A Karras, S Sioutas - arXiv preprint arXiv:2203.01114, 2022 - arxiv.org
Big data streams are possibly one of the most essential underlying notions. However, data
streams are often challenging to handle owing to their rapid pace and limited information …

Large scale implementations for twitter sentiment classification

A Kanavos, N Nodarakis, S Sioutas, A Tsakalidis… - Algorithms, 2017 - mdpi.com
Sentiment Analysis on Twitter Data is indeed a challenging problem due to the nature,
diversity and volume of the data. People tend to express their feelings freely, which makes …

[PDF][PDF] Large Scale Sentiment Analysis on Twitter with Spark.

N Nodarakis, S Sioutas, AK Tsakalidis… - EDBT/ICDT …, 2016 - academia.edu
Sentiment analysis on Twitter data has attracted much attention recently. One of the system's
key features, is the immediacy in communication with other users in an easy, user-friendly …

WiCHORD+: A Scalable, Sustainable, and P2P Chord-Based Ecosystem for Smart Agriculture Applications

CP Balatsouras, A Karras, C Karras, I Karydis… - Sensors, 2023 - mdpi.com
In the evolving landscape of Industry 4.0, the convergence of peer-to-peer (P2P) systems,
LoRa-enabled wireless sensor networks (WSNs), and distributed hash tables (DHTs) …

Improving distance-join query processing with voronoi-diagram based partitioning in spatialhadoop

F García-García, A Corral, L Iribarne… - Future Generation …, 2020 - Elsevier
SpatialHadoop is an extended MapReduce framework supporting global indexing
techniques that partition spatial datasets across several machines and improve spatial query …

Efficient distance join query processing in distributed spatial data management systems

F García-García, A Corral, L Iribarne… - Information …, 2020 - Elsevier
Due to the ubiquitous use of spatial data applications and the large amounts of such data
these applications use, the processing of large-scale distance joins in distributed systems is …

Efficient distributed algorithms for distance join queries in spark-based spatial analytics systems

F García-García, A Corral, L Iribarne… - … Journal of General …, 2023 - Taylor & Francis
ABSTRACT Apache Sedona (formerly GeoSpark) is a new in-memory cluster computing
system for processing large-scale spatial data, which extends the core of Apache Spark to …

Efficient processing of all-k-nearest-neighbor queries in the MapReduce programming framework

P Moutafis, G Mavrommatis, M Vassilakopoulos… - Data & Knowledge …, 2019 - Elsevier
Numerous modern applications, from social networking to astronomy, need efficient
answering of queries on spatial data. One such query is the All k Nearest-Neighbor Query …

Efficient large-scale distance-based join queries in spatialhadoop

F García-García, A Corral, L Iribarne… - GeoInformatica, 2018 - Springer
Abstract Efficient processing of Distance-Based Join Queries (DBJQs) in spatial databases
is of paramount importance in many application domains. The most representative and …

[PDF][PDF] Method to implement K-NN machine learningto classify data privacy in IoT environment

Q Shallal, Z Hussien… - Indonesian Journal of …, 2020 - pdfs.semanticscholar.org
Internet of Things technology allows many devices to connect with each other. The
interaction could be between humans and devices or between devices itself. In fact, the data …