Classification of abnormal behavior in the elderly based on Wi-Fi

Author(s):  
Wang Weiqiong ◽  
Cao Yongchun ◽  
Lin Qiang ◽  
Yifan Li
1979 ◽  
Vol 1 (1) ◽  
pp. 108-121 ◽  
Author(s):  
Peter I. Heller ◽  
Maria del Carmen Rivera-Worley ◽  
H. Paul Chalfant

2010 ◽  
Vol 6 (4) ◽  
pp. 341-354 ◽  
Author(s):  
Hui-Huang Hsu ◽  
Chien-Chen Chen

This research aimed at building an intelligent system that can detect abnormal behavior for the elderly at home. Active RFID tags can be deployed at home to help collect daily movement data of the elderly who carries an RFID reader. When the reader detects the signals from the tags, RSSI values that represent signal strength are obtained. The RSSI values are reversely related to the distance between the tags and the reader and they are recorded following the movement of the user. The movement patterns, not the exact locations, of the user are the major concern. With the movement data (RSSI values), the clustering technique is then used to build a personalized model of normal behavior. After the model is built, any incoming datum outside the model can be viewed as abnormal and an alarm can be raised by the system. In this paper, we present the system architecture for RFID data collection and preprocessing, clustering for anomaly detection, and experimental results. The results show that this novel approach is promising.


2011 ◽  
Vol 119 (s1) ◽  
pp. c2-c4 ◽  
Author(s):  
Christopher G. Winearls ◽  
Richard J. Glassock

Author(s):  
Hocine Chebi

In this chapter, the authors propose two algorithms based on the device of attributes for tracking of the abnormal behavior of crowd in the visual systems of surveillance. Previous works were realized in the case of detection of behavior, which uses the analysis and the classification of behavior of crowds; this work explores the continuity in the same domain, but in the case of the automatic tracking based on the techniques of filtering one using the KALMAN filter and particles filter. The proposed algorithms he the technique of filter with particle is independent from the detection and from the segmentation human, so is strong with regard to (compared with) the filter of Kalman. In conclusion, the chapter applies the method for tracking of the abnormal behavior to several videos and shows the promising results.


Hand ◽  
2018 ◽  
Vol 14 (4) ◽  
pp. 540-546
Author(s):  
Jorge G. Boretto ◽  
Ezequiel E. Zaidenberg ◽  
Gerardo L. Gallucci ◽  
Alejandro Sarme ◽  
Pablo De Carli

Background: Acute management of fractures of the distal ulna that are associated with fractures of the distal radius remains difficult, particularly in the elderly. Methods: In this study, we investigated whether internal fixation of the distal ulna is associated with a higher rate of complications than resection of the distal ulna in patients older than 70 years. Twenty-four consecutive patients were included in this study, 12 of whom had undergone open reduction and internal fixation (ORIF) of the distal ulna, and 12 who had undergone distal ulna resection. Patients were retrospectively assessed for range of motion, grip strength, pain, and radiographic appearance. The functional outcome was evaluated by the Mayo Wrist Score. Complications were classified according to the Classification of Surgical Complications. Results: There were no differences in patient demographics between the 2 groups, except patient age. Clinical evaluation showed no difference at follow-up; however, there were significantly more complications associated with ORIF compared with resection. Conclusions: The results from our study show that women older than 70 years with fracture of the distal radius and distal ulna have a higher rate of complications if ORIF of the distal ulna is performed. Patients should be warned, by surgeons, of this in cases where ORIF of the distal ulna is suggested.


2020 ◽  
Vol 13 (9) ◽  
pp. 220
Author(s):  
Stanislav Sukhikh ◽  
Olga Babich ◽  
Alexander Prosekov ◽  
Nikolai Patyukov ◽  
Svetlana Ivanova

Osteoarthritis is one of the most common diseases of the connective tissue of the elderly. It was found that most epidemiological studies used the Kellgren and Lawrence system for classification of osteoarthritis, which indicates one of the 5 degrees (0–4) of osteoarthritis in various joints according to the radiographic atlas. It has been proven that chondroprotectors are represented by the following active substances: chondroitin sulfate, glucosamine sulfate or hydrochloride, hyaluronic acid, glycosaminoglycans, extraction preparations from animal or plant raw materials. The sources of raw materials for the manufacture of combined chondroprotectors are known, methods for their preparation and use are described. The main drugs on the chondroprotective market are presented. The effectiveness of their use for the treatment of osteoarthritis has been proven. It was found that preparations containing chondroitin sulfate have anti-inflammatory activity, affecting mainly the cellular component of inflammation, stimulate the synthesis of hyaluronic acid and proteoglycans. Methods of treating osteoarthritis using cell therapy (the use of readily available, highly proliferative, and multipotent mesenchymal stromal cells) are presented.


1996 ◽  
Vol 58 (6) ◽  
pp. 409-414 ◽  
Author(s):  
S. L. Greenspan ◽  
L. Maitland-Ramsey ◽  
E. Myers

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