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An Object-Oriented Architecture for a Nostalgia-Driven Adaptive Persuasive System: Design and Field-Validated Implementation
| International Journal of Computer Applications |
| Foundation of Computer Science (FCS), NY, USA |
| Volume 187 - Number 135 |
| Year of Publication: 2026 |
| Authors: Remi A. Ikechukwu, Nuka Nwiabu, Daniel Matthias, Emmanuel Bennett |
10.5120/ijcadfb3364c5073
|
Remi A. Ikechukwu, Nuka Nwiabu, Daniel Matthias, Emmanuel Bennett . An Object-Oriented Architecture for a Nostalgia-Driven Adaptive Persuasive System: Design and Field-Validated Implementation. International Journal of Computer Applications. 187, 135 ( Aug 2026), 28-34. DOI=10.5120/ijcadfb3364c5073
Abstract
Digital persuasive systems that rely on static, non-personalized reinforcement (reminders, rule-based tracking) frequently fail to sustain engagement once user motivation declines, particularly under acute stress. This paper presents the object-oriented architecture of a Nostalgic Persuasive System, an adaptive engine that detects a user's emotional and stress state from reflective journaling text and responds with a personalized, generationally-targeted nostalgic media recommendation. The architecture integrates six functional layers: data acquisition, model training/preprocessing, text-based emotion classification (a fine-tuned DistilRoBERTa model), text-based stress detection (a fine-tuned RoBERTa model), a dual content-recommendation layer (LightFM for movies, content-based vector similarity for songs), and a contextual-bandit adaptive-learning layer (LinUCB) that refines recommendations from user feedback. The system's functional/non-functional requirements, class structure, and behavioral design are detailed following Design Science Research guidelines. The architecture was implemented and deployed as a live web application, generating 268 real interaction logs over a 7-day field evaluation with 49 active participants, showing substantially higher habit adherence in the personalized condition (90.1%) than in a non-personalized control (41.3%). This paper contributes a reusable architectural blueprint for emotion-aware, adaptive persuasive systems.
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