LongevIoT 2025

2nd International Workshop on Longevity in IoT Systems

Co-located with ACM IoT 2025

November 18th, 2025 Vienna, Austria

Location: Meeting Room AD0117

ABOUT

The premature aging of IoT systems is one of the most challenging topics that need to be addressed to enable widespread usage. Both hardware and the software that is deployed on devices from small sensor nodes to edge devices or the cloud need to be considered holistically, such that deployment lifetimes can be counted in decades not years. With ever changing communication protocols, company-specific software platforms and quickly deprecated hardware components, IoT is at the forefront of uncertain futures, and these technical challenges need to be solved for a sustainable future. In this workshop, we focus on issues arising from the brittle nature of current IoT systems.

Technical Program

13:30 - 13:35
Opening Remarks
13:35 - 14:30
Keynote
Keynote speaker headshot
Prof. Roberto Morabito
EURECOM
From Deployment to Longevity: Can Agentic AI Sustain IoT Systems?

IoT deployments often face premature obsolescence due to evolving protocols, fragmented software stacks, hardware heterogeneity, and aging machine-learning models, leading to costly replacements. This talk explores whether agentic AI — combining large language models with autonomous agents — can sustain IoT systems by enabling automated lifecycle management that adapts code, models, and configurations as requirements, environments, and hardware evolve. It highlights feasibility and usability aspects of running language models on edge devices while addressing open questions around collaborative edge–cloud intelligence, adaptive deployments, and model aging, with a view toward the longevity and sustainability of future IoT infrastructures.

14:30 - 15:00
Paper Presentations
Neural Caching: Improving Longevity of Smart IoT Devices running Artifical Neural Networks
Authors: Christian Sallinger, Christian Stippel, Elias Panner, Paul Poschenreither, Benjamin Schwendinger and Ralph Hoch
Resource constraints and hardware aging make long-term neural inference on embedded and IoT devices increasingly challenging. We present Neural Caching, a lightweight inference mechanism that exploits the piecewise-linear structure of Artificial Neural Networks (ANN) with piecewise linear activation functions to accelerate evaluation without retraining or model compression. Our approach, Hypersphere Caching, associates each locally linear region of an Artificial Neural Network with a cached affine mapping and reuses it for subsequent inputs falling within the same or nearby activation region. This enables full predictions to be computed via a single matrix multiplication instead of a complete forward pass. Experiments on four human-activity recognition datasets demonstrate up to an order-of-magnitude reduction in inference time while preserving classification performance metrics within 0.1 % of baseline performance. By lowering computational load and power draw, neural caching extends device lifetime and supports sustainable, long-term deployment of machine-learning models in real-world IoT environments.
15:00 - 15:30
Coffee Break
15:30 - 16:30
Paper Presentations
Hybrid IoT Platform Architectures for Flexible and Longstanding Deployments
Authors: Katarina Vuknić, Mario Kušek and Ivana Podnar Žarko
The paper analyzes hybrid IoT platform architectures that integrate cloud-based and edge-based solutions. While cloud platforms offer scalability and a centralized global view, edge platforms provide low latency, enhanced privacy, and local autonomy. By combining them, hybrid systems can leverage both local performance aspects (e.g., real-time actuation and device management) and global centralized processing at the cloud level. The edge is enabled to share filtered and aggregated local views with the cloud, while local changes of IoT devices at the edge level do not affect the cloud level. Such architectures are thus adequate for longstanding IoT deployments. We review existing strategies for integrating IoT devices with cloud platforms and introduce a flexible, edge-centric integration approach which simplifies device replacement procedures and offers configurable data synchronization with the cloud. We validate the approach through a case study on a hybrid smart home solution that integrates an open-source edge platform with a commercial cloud-based platform to manage and process home automation data across large-scale deployments.
From Noise to Knowledge: A Comparative Study of Acoustic Anomaly Detection Models in Pumped-storage Hydropower Plants
Authors: Karim Khamaisi, Nicolas Keller, Stefan Krummenacher, Valentin Huber, Bernhard Fässler and Bruno Rodrigues
In the context of industrial factories and energy producers, unplanned outages are highly costly and difficult to service. However, existing acoustic-anomaly detection studies largely rely on generic industrial or synthetic datasets, with few focused on hydropower plants due to limited access. This paper presents a comparative analysis of acoustic-based anomaly detection methods, as a way to improve predictive maintenance in hydropower plants. We address key challenges in the acoustic preprocessing under highly noisy conditions before extracting time- and frequency-domain features. Then, we benchmark three machine learning models: LSTM AE, K-Means, and OC-SVM, which are tested on two real-world datasets from the Rodundwerk II pumped-storage plant in Austria, one with induced anomalies and one with real-world conditions. The One-Class SVM achieved the best trade-off of accuracy (ROC AUC 0.997–0.998) and minimal training time, while the LSTM autoencoder delivered strong detection (ROC AUC 0.997-0.999) at the expense of higher computational cost.
16:30 - 17:30
Open Forum
Moderator headshot
Peter Zdankin
University of Duisburg-Essen
Jumpstarting IoT Longevity Research: A Collaborative Discussion

Commercial IoT products make the news all the time—and not always in the way we’d hope. From dramatic device failures to frustrated customers and the occasional data-privacy horror story, these issues don’t exactly help build trust in the IoT ecosystem. The challenge is clear: the IoT is wonderfully diverse and open, but that same freedom lets every actor choose their own path—sometimes leading straight into trouble. Longevity suffers, users suffer, and the field as a whole struggles to keep pace. In this open forum, we invite everyone who cares about making IoT systems last—researchers, practitioners, makers, and the simply curious. Let’s dig into the challenges together, share what’s going wrong (and right!), and explore how we can steer the future of IoT toward durability, reliability, and trust. Which research problems can we solve to make a real difference for IoT longevity? Can we jumpstart a community that makes a change?

17:30 - 17:45
Closing Remarks & Best Paper Award

CALL FOR PAPERS

The papers of this workshop should highlight approaches, ideas, and concepts in the field of longevity of Internet of Things systems. The main outcome of the workshop is to share the current progress in research and industry, as well as establish a community, dedicated to improve the longevity and sustainability of IoT systems.

The main topics of interests include (but are not limited to):

  • Abstractions and Digital Twins for fewer constraints
  • Adaptive processing of IoT data streams
  • Aging AI models
  • Continuous and lifelong learning for IoT applications
  • Flexible deployments
  • Real-world examples and case studies
  • Retrofitting features and security
  • Software design patterns for sustainable/robust IoT
  • Software update planning

We invite researchers, practitioners, and industry experts to submit original contributions addressing these topics or related areas. Join us in exploring innovative solutions and fostering discussions to shape the future of sustainable IoT systems.

Important Dates*

Paper submission: September 17 September 26, 2025 (extended)
(add to or )
Author Notification: September 29 October 6, 2025 (extended)
(add to or )
Camera-ready Submission: October 22 October 29, 2025 (extended)
(add to or )
Workshop Date: November 18th, 2025
(add to or )
Paper submission: September 17 September 26, 2025 (extended)
(add to or )
Author Notification: September 29 October 6, 2025 (extended)
(add to or )
Camera-ready Submission: October 22 October 29, 2025 (extended)
(add to or )
Workshop Date: November 18th, 2025
(add to or )
Paper submission:

September 17 September 26, 2025 (extended)

(add to or )
Author Notification:

September 29 October 6, 2025 (extended)

(add to or )
Camera-ready Submission:

October 22 October 29, 2025 (extended)

(add to or )
Workshop Date:

November 18th, 2025

(add to or )

* All dates are AoE (check it here).

SUBMISSION GUIDELINES

Regular papers should present novel perspectives within the scope of the workshop. Papers must be in PDF format and contain 6-8 pages maximum (including references). Papers should not contain names and affiliations of the authors (double-blinded review process). All papers must be typeset in the official ACM Primary Article Template. Submissions must be made via EasyChair. The LaTeX templates, as well as related information, can be found at the ACM website (or at Overleaf).

LongevIoT will be held in conjunction with ACM IoT 2025. All accepted papers will be published by TU Wien Bibliothek and will be made open-access. At least one author will be required to present the paper during the workshop (only in-person allowed) and has to have a full registration at the conference (visit the conference's website for more details on the registration).

Submission link: here

REGISTRATION

Each accepted workshop paper requires at least one full conference registration. Otherwise, the paper will be withdrawn from publication. The authors of all accepted papers must guarantee that their paper will be presented at the workshop. Papers not presented at the workshop will be considered as a "no-show" and it will not be included in the proceedings.

Please reach out to the workshop organizers if you require an invitation letter.

Registration link: here

COMMITTEES

Organizing Committee

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Boris Sedlak TU Wien

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Malte Josten University of Duisburg-Essen

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Peter Zdankin University of Duisburg-Essen

Technical Program Committee

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Chao Qian University of Duisburg-Essen

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Eirini E. Tsiropoulou Arizona State University

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Jan S. Rellermeyer University of Hannover

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Koojana Kuladinithi TU Hamburg

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Lorenz Schwittmann Independent Researcher

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Marco Picone Università di Modena e Reggio Emilia

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Stephan Sigg Aalto University

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Suzan Bayhan University of Twente

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Torben Weis University of Duisburg-Essen

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Victor C. Pujol Universität Pompeu Fabra

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Waldir Moreira Fraunhofer Portugal AICOS

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