Complex Human Activity Recognition Using a Local Weighted Approach
Due to the life expectancy increase, there will be a workforce shortage in elderly care sector in forthcoming years. Ambient Assisted Living (AAL) systems can cope with this issue. A subset of AAL, Human activity recognition (HAR) provides an efficient way to tackle this issue. It can help with eval...
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| Format: | Article |
| Language: | English |
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IEEE
2022-01-01
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| Series: | IEEE Access |
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| Online Access: | https://ieeexplore.ieee.org/document/9899447/ |
| _version_ | 1811181284384309248 |
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| author | Tunc Asuroglu |
| author_facet | Tunc Asuroglu |
| author_sort | Tunc Asuroglu |
| collection | DOAJ |
| description | Due to the life expectancy increase, there will be a workforce shortage in elderly care sector in forthcoming years. Ambient Assisted Living (AAL) systems can cope with this issue. A subset of AAL, Human activity recognition (HAR) provides an efficient way to tackle this issue. It can help with evaluating general health and welfare of elderly by automatically tracking their activities. Lifelogging and home diary applications will reduce the load on physicians and caregivers. On the other hand, complex activities play a vital role as they have high level semantic characteristics that truly represent daily life of the user. The main objective is to track these high-level semantic motions with low-cost single sensor systems with efficient machine learning frameworks. To achieve this objective, a framework is proposed to predict complex human activities from a single sensor using a machine learning approach. Time and frequency features are extracted from PAAL ADL Accelerometry Dataset and fed to Locally Weighted Random Forest (LWRF) machine learning algorithm. This algorithm is a hybrid structure that utilizes local weighting by introducing neighboring samples on Random Forest tree building phases. Proposed approach achieved 91% accuracy for HAR and 91.3% for gender recognition, outperforming other machine learning algorithms and previous study on the same dataset. This is the first study that utilize a local weighted approach for accelerometer signal domain. For prospective application, proposed framework can be embedded in lifelogging and home diary applications in home environments to track mental status of elderlies. |
| first_indexed | 2024-04-11T09:15:53Z |
| format | Article |
| id | doaj.art-49f44fd8536d41d4abd5fd3b12bd0ba8 |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-04-11T09:15:53Z |
| publishDate | 2022-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-49f44fd8536d41d4abd5fd3b12bd0ba82022-12-22T04:32:20ZengIEEEIEEE Access2169-35362022-01-011010120710121910.1109/ACCESS.2022.32086869899447Complex Human Activity Recognition Using a Local Weighted ApproachTunc Asuroglu0https://orcid.org/0000-0003-4153-0764Faculty of Medicine and Health Technology, Tampere University, Tampere, FinlandDue to the life expectancy increase, there will be a workforce shortage in elderly care sector in forthcoming years. Ambient Assisted Living (AAL) systems can cope with this issue. A subset of AAL, Human activity recognition (HAR) provides an efficient way to tackle this issue. It can help with evaluating general health and welfare of elderly by automatically tracking their activities. Lifelogging and home diary applications will reduce the load on physicians and caregivers. On the other hand, complex activities play a vital role as they have high level semantic characteristics that truly represent daily life of the user. The main objective is to track these high-level semantic motions with low-cost single sensor systems with efficient machine learning frameworks. To achieve this objective, a framework is proposed to predict complex human activities from a single sensor using a machine learning approach. Time and frequency features are extracted from PAAL ADL Accelerometry Dataset and fed to Locally Weighted Random Forest (LWRF) machine learning algorithm. This algorithm is a hybrid structure that utilizes local weighting by introducing neighboring samples on Random Forest tree building phases. Proposed approach achieved 91% accuracy for HAR and 91.3% for gender recognition, outperforming other machine learning algorithms and previous study on the same dataset. This is the first study that utilize a local weighted approach for accelerometer signal domain. For prospective application, proposed framework can be embedded in lifelogging and home diary applications in home environments to track mental status of elderlies.https://ieeexplore.ieee.org/document/9899447/Accelerometersactivity recognitionambient assisted livingmachine learningwearable sensors |
| spellingShingle | Tunc Asuroglu Complex Human Activity Recognition Using a Local Weighted Approach IEEE Access Accelerometers activity recognition ambient assisted living machine learning wearable sensors |
| title | Complex Human Activity Recognition Using a Local Weighted Approach |
| title_full | Complex Human Activity Recognition Using a Local Weighted Approach |
| title_fullStr | Complex Human Activity Recognition Using a Local Weighted Approach |
| title_full_unstemmed | Complex Human Activity Recognition Using a Local Weighted Approach |
| title_short | Complex Human Activity Recognition Using a Local Weighted Approach |
| title_sort | complex human activity recognition using a local weighted approach |
| topic | Accelerometers activity recognition ambient assisted living machine learning wearable sensors |
| url | https://ieeexplore.ieee.org/document/9899447/ |
| work_keys_str_mv | AT tuncasuroglu complexhumanactivityrecognitionusingalocalweightedapproach |