Corrigendum Notice: Motion Fusion: A Robust Ensemble Learning Framework for Accurate Sensor-Based Human Activity Recognition

NOTICE OF CORRIGENDUM FOR: Almulla, Hussein K.; Mohammed, Hussam J.; Al-Waisy, Alaa S.; Al-Fahdawi, Shumoos; Had, Ahmed Adnan; and AL-Attar, Bourair (2025) ``MotionFusion: A Robust Ensemble Learning Framework for Accurate Sensor-Based Human Activity Recognition,'' Iraqi Journal for Computer Science and Mathematics: Vol. 6: Iss. 3, Article 14. DOI: https://doi.org/10.52866/2788-7421.1289. Available at: https://ijcsm.researchcommons.org/ijcsm/vol6/iss3/14. Reason for Corrigendum: In the published version of the above article, a number of typographical and formatting errors were identified. These corrections do not affect the study design, results, or conclusions, and are provided below to ensure accuracy and consistency. 1) Feature subset sizes (text–table inconsistency) Error: The manuscript contains inconsistent feature subset sizes. While the feature-selection setup defines subsets as 420 / 280 / 140 (≈ 75% / 50% / 25% of 561), another sentence incorrectly reports 300 and 100 for 50% and 25%. Correction: The correct subset sizes are: 75%: 420 features 50%: 280 features 25%: 140 features Accordingly, the sentence reporting ``50% (300)'' and ``25% (100)'' should be corrected to ``50% (280)'' and ``25% (140)''. 2) Table 2 formatting merge error (Class weight row) Error: Table 2 contains a layout/line-break merge where page/footer text appears inside a cell (e.g., ``Balanced220 ...''). Correction: Table 2 should display the SVC class weight as ``Balanced'' only, and the footer/page text must be removed from the table content. 3) Incorrect unit/format for F1-score Error: The paper states: ``highest F1-score value of 0.81% ...'', which is a unit-formatting error. Correction: The correct representation is F1-score = 0.81 (or equivalently 81% if the journal uses percent formatting). The ``%'' symbol after 0.81 must be removed (or the value reformatted consistently as 81%). 4) Reference typography issue (invalid symbol) Error: In Reference 1, the title includes an unintended symbol (e.g., ``human° activity''). Correction: The reference title should be corrected to ``human activity recognition dataset ...'' (removing the unintended symbol). 5) Minor table label typo Error: A table label uses ``Matric''. Correction: Replace ``Matric'' with ``Metric'' and standardize ``Features'' capitalization for consistency. The authors apologize for these errors and any inconvenience caused.