Academic Positions

  • Present 2018

    Assistant Professor

    Universidade da Beira Interior

  • 2018 2016

    Invited Assistant Professor

    Universidade Lusófona de Humanidades e Tecnologias

  • 2018 2014

    Invited Assistant Professor

    Universidade da Beira Interior

  • 2017 2016

    Professor and Member of the Steering Committee

    EU Master Care and Technology, UBI (Portugal), Zuyd, Fontys, Saxion (The Netherlands), SAMK, and TAMK (Finland)

  • 2014 2008

    Monitor

    Universidade da Beira Interior

IT Positions

  • Present 2010

    CTO & IT Consultant

    in several national and international companies

  • 2010 2004

    Project Leader

    ASSEC - Sistemas de Informação e Multimédia

  • 2004 2000

    Team Leader

    ASSEC - Sistemas de Informação e Multimédia

  • 2000 1999

    Programmer

    Integer SGPS

Honors, and Awards

  • October 2017
    Winner of the Prémio João Cordeiro
    image
    Winner of the Prémio João Cordeiro - Inovação em Farmácia, organized by the Associação Nacional de Farmácias (ANF) with the project “Rede de Farmácias Amigas do Viajante”.

    Promotional video: here

    Flash interview: here

  • March 2012
    Best Paper Award
    image
    Best Paper Award to the paper "Contribution of Web Services to Improve Pain Diaries Experience", Pombo N., Araújo P., Viana J., Junior B., and Serrano R., International MultiConference of Engineers and Computer Scientists 2012, IMECS 2012, 14-16 March, 2012, Hong Kong.

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[JP.18] Internet of Things Architectures, Technologies, Applications, Challenges and Future Directions for Enhanced Living Environments and Healthcare Systems: A Review

Marques G., Pitarma R., Garcia N., Pombo N.
Journal PaperElectronics, 2019

Abstract

(to appear)

[JP.17] Towards an accurate sleep apnea detection based on ECG signal: The quintessential of a wise feature selection

Pinho A., Pombo N., Silva B., Bousson K., Garcia N.
Journal PaperApplied Soft Computing, 2019

Abstract

A wise feature selection from minute-to-minute Electrocardiogram (ECG) signal is a challenging task for many reasons, but mostly because of the promise of the accurate detection of clinical disorders, such as the sleep apnea. In this study, the ECG signal was modeled in order to obtain the Heart Rate Variability (HRV) and the ECG-Derived Respiration (EDR). Selected features techniques were used for benchmark with different classifiers such as Artificial Neural Networks (ANN) and Support Vector Machine(SVM), among others. The results evidence that the best accuracy was 82.12%, with a sensitivity and specificity of 88.41% and 72.29%, respectively. In addition, experiments revealed that a wise feature selection may improve the system accuracy. Therefore, the proposed model revealed to be reliable and simpler alternative to classical solutions for the sleep apnea detection, for example the ones based on the Polysomnography.

[JP.16] Keyed User Datagram Protocol: concepts and operation of an almost reliable connectionless transport protocol

Garcia N., Gil F., Matos B., Yahaya C., Pombo N., Goleva R.
Journal PaperIEEE Access, 2019, Volume 7

Abstract

Departing from the well-known problem of the excessive overhead and latency of connection oriented protocols, this paper describes a new almost reliable connectionless protocol that uses user datagram protocol (UDP) segment format and is UDP compatible. The problem is presented and described, the motivation, the possible areas of interest and the concept and base operation modes for the protocol named keyed UDP are presented (here called KUDP). Also, discussed are some of the possible manners in which the KUDP can be used, addressing potential problems related with current networking technologies. As UDP is a connectionless protocol, and KUDP allows for some degree of detection of loss and re-ordering of segments received out-of-sequence, we also present a proposal for a stream reconstruction algorithm. This paper ends by mentioning some of the research issues that still need to be addressed.

[CP.33] Towards Pain-Fingerprinting: a Ubiquitous and Interoperable Clinical Decision Support System for Pain Assessment

Pombo N., Garcia N.
Conference PaperInternational Conference on Medical and Biological Engineering (CMBEBIH), Banja Luka, Bosnia and Herzegovina, May 16-18, 2019

[CP.32] Identification of real and imaginary movements in EEG using Machine Learning models

Moreira J., Moreira M., Pombo N., Silva B., Garcia N.
Conference PaperInternational Conference on Medical and Biological Engineering (CMBEBIH), Banja Luka, Bosnia and Herzegovina, May 16-18, 2019

[CP.31] Human Behavior Prediction Though Noninvasive and Privacy-Preserving Internet of Things (IoT) Assisted Monitoring

Xu L., Pombo N.
Conference Paper5th IEEE World Forum on Internet of Things (WF-IoT), Limerick, Ireland, April 15-18, 2019

[CP.30] How to Get a Badge? Unlock Your Mind

Pombo N., Garcia N., Alves P.
Conference Paper10th IEEE Global Engineering Education Conference (EDUCON), Dubai, UAE, April 9-11, 2019

[JP.15] Identification of Activities of Daily Living through Data Fusion on Motion and Magnetic Sensors embedded on Mobile Devices

Pires, I., Garcia, N., Pombo N., Flórez-Revuelta, F., Spinsante, S., Teixeira M.
Journal PaperPervasive and Mobile Computing, 2018, Volume 47

Abstract

Several types of sensors have been available in off-the-shelf mobile devices, including motion, magnetic, vision, acoustic, and location sensors. This paper focuses on the fusion of the data acquired from motion and magnetic sensors, i.e., accelerometer, gyroscope and magnetometer sensors, for the recognition of Activities of Daily Living (ADL). Based on pattern recognition techniques, the system developed in this study includes data acquisition, data processing, data fusion, and classification methods like Artificial Neural Networks (ANN). Multiple settings of the ANN were implemented and evaluated in which the best accuracy obtained, with Deep Neural Networks (DNN), was 89.51%. This novel approach applies L2 regularization and normalization techniques on the sensors’ data proved it suitability and reliability for the ADL recognition.

[JP.14] Validation of a method for the estimation of energy expenditure during physical activity using a mobile device accelerometer

Pires, I., Felizardo, V., Pombo N., Drobics, M., Garcia, N., Flórez-Revuelta, F.
Journal PaperJournal of Ambient Intelligence and Smart Environments, 2018, (to appear)

Abstract

(to appear)

[JP.13] Approach for the development of a Framework for the Identification of Activities of Daily Living using Mobile Devices

Pires, I., Garcia, N., Pombo N., Flórez-Revuelta, F., Spinsante, S.
Journal PaperSensors, 2018, Volume 18, Number 2

Abstract

Sensors available on mobile devices allow the automatic identification of Activities of Daily Living (ADL). This paper describes an approach for the creation of a framework for the identification of ADL, taking into account several concepts, including data acquisition, data processing, data fusion, and pattern recognition. These concepts can be mapped onto different modules of the framework. The proposed framework should perform the identification of ADL without Internet connection, performing these tasks locally on the mobile device, taking in account the hardware and software limitations of these devices. The main purpose of this paper is to present a new approach for the creation of a framework for the recognition of ADL, analyzing the allowed sensors available in the mobile devices, and the existing methods available in the literature.

[JP.12] Recognition of Activities of Daily Living Based on Environmental Analyses Using Audio Fingerprinting Techniques: A Systematic Review

Pires, I., Santos R., Pombo N., Garcia N., Flórez-Revuelta, F., Spinsante, S., Goleva R., Zdravevski E.
Journal PaperSensors, 2018, Volume 18, Number 1

Abstract

An increase in the accuracy of identification of Activities of Daily Living (ADL) is very important for different goals of Enhanced Living Environments and for Ambient Assisted Living (AAL) tasks. This increase may be achieved through identification of the surrounding environment. Although this is usually used to identify the location, ADL recognition can be improved with the identification of the sound in that particular environment. This paper reviews audio fingerprinting techniques that can be used with the acoustic data acquired from mobile devices. A comprehensive literature search was conducted in order to identify relevant English language works aimed at the identification of the environment of ADLs using data acquired with mobile devices, published between 2002 and 2017. In total, 40 studies were analyzed and selected from 115 citations. The results highlight several audio fingerprinting techniques, including Modified discrete cosine transform (MDCT), Mel-frequency cepstrum coefficients (MFCC), Principal Component Analysis (PCA), Fast Fourier Transform (FFT), Gaussian mixture models (GMM), likelihood estimation, logarithmic moduled complex lapped transform (LMCLT), support vector machine (SVM), constant Q transform (CQT), symmetric pairwise boosting (SPB), Philips robust hash (PRH), linear discriminant analysis (LDA) and discrete cosine transform (DCT).

[CP.29] An Efficient Machine Learning-based Elderly Fall Detection Algorithm

Hussain F., Umair M., Ehatisham-ul-Haq M., Pires I., Valente T., Garcia N., Pombo N.
Conference Paper9th Conference on Sensor Device Technologies and Applications (SENSORDEVICES), Venice, Italy, September 16-20, 2018

[CP.28] What Do We Mean about the Validation of the Activity Monitoring Devices?

Pires I., Garcia N., Pombo N., Oniani S., Mosashvili I., Ferreira de Souza G.
Conference Paper9th Conference on Sensor Device Technologies and Applications (SENSORDEVICES), Venice, Italy, September 16-20, 2018

[CP.27] Hydriney: A Mobile Application to Help in the Control of Kidney Stones Disease

Valente T., Pires I., Garcia N., Pombo N., Orvalho J.
Conference Paper9th Conference on Sensor Device Technologies and Applications (SENSORDEVICES), Venice, Italy, September 16-20, 2018

[CP.26] Framework for the Recognition of Activities of Daily Living and their Environments in the Development of a Personal Digital Life Coach

Pires I., Garcia N., Pombo N., Flórez-Revuelta F., Garcia N.
Conference Paper7th International Conference on Data Science, Technology and Applications (DATA), Porto, Portugal, July 26-28, 2018

[CP.25] Unobtrusive System for the Detection of Mental Focus Depletion

Gialelis J., Pavlou P., Panagiotou C., Pombo N., Garcia N.
Conference Paper10th International Conference on e-Health (EH), Madrid, Spain, July 17-19, 2018

[CP.24] Multi-Sensor Mobile Platform for the Recognition of Activities of Daily Living and their Environments based on Artificial Neural Networks

Pires I., Pombo N., Garcia N., Flórez-Revuelta F., Garcia N.
Conference Paper27th International Joint Conference on Artificial Intelligence (IJCAI), Stockholm, Sweden, July 13-19, 2018

[CP.23] Conceptual Definition of a Platform for the Monitoring of the Subjects with Nephrolithiasis Based on the Energy Expenditure and the Activities of Daily Living Performed

Pires I., Valente T., Pombo N., Garcia N.
Conference Paper16th International Conference on Practical Applications for Agents and Multi-Agent Systems (PAAMS), Toledo, Spain, June 20-22, 2018

[CP.22] Scaffolding Students on Connecting STEM and Interaction Design: Case Study in Tallinn University Summer School

Matias I., Pombo N., Lamas D., Garcia N., Tomberg V.
Conference Paper9th IEEE Global Engineering Education Conference (EDUCON), Santa Cruz de Tenerife, Spain, April 17-20, 2018

[CP.21] Limitations of the use of Mobile devices and Smart Environments for the monitoring of Ageing People

Pires I., Garcia N., Flórez-Revuelta F., Pombo N.
Conference Paper4th International Conference on Information and Communication Technologies for Ageing Well and e-Health (ICT4AWE), Funchal, Portugal, March 22-23, 2018

[CP.20] Measurement of the Reaction Time in the 30-s Chair Stand Test using the Accelerometer Sensor available in off-the-shelf Mobile Devices

Pires I., Garcia N., Marques M., Marques D., Flórez-Revuelta F., Pombo N.
Conference Paper4th International Conference on Information and Communication Technologies for Ageing Well and e-Health (ICT4AWE), Funchal, Portugal, March 22-23, 2018

[CP.19] Towards a fully automated bracelet for health emergency solution

Matias I., Pombo N., Garcia N.
Conference Paper3rd International Conference on Internet of Things, Big Data and Security (IoTBDS), Funchal, Portugal, March 19-21, 2018

[JP.11] Improving Activity Recognition Accuracy in Ambient Assisted Living Systems by Automated Feature Engineering

Zdravevski E., Lameski P., Trajkovik V., Kulakov A., Chorbev I., Goleva R., Pombo N., Garcia N.
Journal PaperIEEE Access, 2017, Volume 5

Abstract

Ambient-assisted living (AAL) is promising to become a supplement of the current care models, providing enhanced living experience to people within context-aware homes and smart environments. Activity recognition based on sensory data in AAL systems is an important task because 1) it can be used for estimation of levels of physical activity, 2) it can lead to detecting changes of daily patterns that may indicate an emerging medical condition, or 3) it can be used for detection of accidents and emergencies. To be accepted, AAL systems must be affordable while providing reliable performance. These two factors hugely depend on optimizing the number of utilized sensors and extracting robust features from them. This paper proposes a generic feature engineering method for selecting robust features from a variety of sensors, which can be used for generating reliable classification models. From the originally recorded time series and some newly generated time series [i.e., magnitudes, first derivatives, delta series, and fast Fourier transformation (FFT)-based series], a variety of time and frequency domain features are extracted. Then, using two-phase feature selection, the number of generated features is greatly reduced. Finally, different classification models are trained and evaluated on an independent test set. The proposed method was evaluated on five publicly available data sets, and on all of them, it yielded better accuracy than when using hand-tailored features. The benefits of the proposed systematic feature engineering method are quickly discovering good feature sets for any given task than manually finding ones suitable for a particular task, selecting a small feature set that outperforms manually determined features in both execution time and accuracy, and identification of relevant sensor types and body locations automatically. Ultimately, the proposed method could reduce the cost of AAL systems by facilitating execution of algorithms on devices with limited resources and by using as few sensors as possible.

[JP.10] Classification techniques on computerized systems to predict and/or to detect Apnea: A systematic review

Pombo N., Garcia N., Bousson K.
Journal PaperComputer Methods and Programs in Biomedicine, 2017, Volume 140

Abstract

Background and objective: Sleep apnea syndrome (SAS), which can significantly decrease the quality of life is associated with a major risk factor of health implications such as increased cardiovascular disease, sudden death, depression, irritability, hypertension, and learning difficulties. Thus, it is relevant and timely to present a systematic review describing significant applications in the framework of computational intelligence-based SAS, including its performance, beneficial and challenging effects, and modeling for the decision-making on multiple scenarios. Methods: This study aims to systematically review the literature on systems for the detection and/or prediction of apnea events using a classification model. Results: Forty-five included studies revealed a combination of classification techniques for the diagnosis of apnea, such as threshold-based (14.75%) and machine learning (ML) models (85.25%). In addition, the ML models, were clustered in a mind map, include neural networks (44.26%), regression (4.91%), instance-based (11.47%), Bayesian algorithms (1.63%), reinforcement learning (4.91%), dimensionality reduction (8.19%), ensemble learning (6.55%), and decision trees (3.27%). Conclusions: A classification model should provide an auto-adaptive and no external-human action dependency. In addition, the accuracy of the classification models is related with the effective features selection. New high-quality studies based on randomized controlled trials and validation of models using a large and multiple sample of data are recommended.

[BC.8] RFID supporting IoT in health and well-being applications

Merilampi S., Virkki J., Pombo N., Garcia N.
Book ChapterEnergy Efficient Computing: Devices, Circuits, and Systems, CRC Press, 2018 ISBN: 9780815370208

[BC.7] A Survey on IoT: Architectures, Elements, Applications, QoS, Platforms and Security concepts

Marques G., Garcia N., Pombo N.
Book ChapterMobile Cloud Computing and Big Data under the 5g Era, Springer, 2017 ISBN: 9783319451459

[CP.18] Simulation in Medical School Education

Pombo N., Garcia N., Castelo-Branco M.
Conference PaperAAATE17 conference, Sheffield, UK, September 13-14, 2017

[CP.17] Limitations of Energy Expenditure Calculation based on a Mobile Phone Accelerometer

Pires I., Felizardo V., Pombo N., Garcia N.
Conference PaperInternational Conference on High Performance Computing & Simulation (HPCS), Genoa, Italy, July 17-21, 2017

[JP.9] Validation Techniques for Sensor Data in Mobile Health Applications

Pires I., Garcia N., Pombo N., Flórez-Revuelta F., Rodriguez N.
Journal PaperJournal of Sensors, 2016, Volume 2016

Abstract

Mobile applications have become a must in every user’s smart device, and many of these applications make use of the device sensors’ to achieve its goal. Nevertheless, it remains fairly unknown to the user to which extent the data the applications use can be relied upon and, therefore, to which extent the output of a given application is trustworthy or not. To help developers and researchers and to provide a common ground of data validation algorithms and techniques, this paper presents a review of the most commonly used data validation algorithms, along with its usage scenarios, and proposes a classification for these algorithms. This paper also discusses the process of achieving statistical significance and trust for the desired output.

[JP.8] Design and Evaluation of a Decision Support System for Pain Management Based on Data Imputation and Statistical Models

Pombo N., Araújo P., Viana J.
Journal PaperMeasurement, 2016, Volume 93

Abstract

The self-reporting of pain complaints is considered the most accurate pain assessment method and represents a valuable source of data to computerised clinical decision support systems (CCDSS) for pain management. However, the subjectivity and variability of pain conditions, combined with missing data, are constraints on the usefulness and accuracy of CCDSS. Based on data imputation principles, together with several mathematical models, this paper presents a CCDSS, the Patient Oriented Method of Pain Evaluation System (POMPES), that produces tailored alarms, reports, and clinical guidance based on collected patient-reported data. This system was tested using clinical data collected during a six-week randomised controlled trial involving thirty-two volunteers recruited from an ambulatory surgery department. The decisions resulting from the POMPES were fully accurate when compared with clinical advice, which proves the ability of the system to cope with missing data and detect either stability or changes in the self-reporting of pain.

[JP.7] Pain Assessment–Can it be Done with a Computerised System? A Systematic Review and Meta-Analysis

Pombo N., Garcia N., Bousson K., Spinsante S., Chorbev I.
Journal PaperInternational Journal of Environmental Research and Public Health, 2016, Volume 13, Issue 4

Abstract

Background: Mobile and web technologies are becoming increasingly used to support the treatment of chronic pain conditions. However, the subjectivity of pain perception makes its management and evaluation very difficult. Pain treatment requires a multi-dimensional approach (e.g., sensory, affective, cognitive) whence the evidence of technology effects across dimensions is lacking. This study aims to describe computerised monitoring systems and to suggest a methodology, based on statistical analysis, to evaluate their effects on pain assessment. Methods: We conducted a review of the English-language literature about computerised systems related to chronic pain complaints that included data collected via mobile devices or Internet, published since 2000 in three relevant bibliographical databases such as BioMed Central, PubMed Central and ScienceDirect. The extracted data include: objective and duration of the study, age and condition of the participants, and type of collected information (e.g., questionnaires, scales). Results: Sixty-two studies were included, encompassing 13,338 participants. A total of 50 (81%) studies related to mobile systems, and 12 (19%) related to web-based systems. Technology and pen-and-paper approaches presented equivalent outcomes related with pain intensity. Conclusions: The adoption of technology was revealed as accurate and feasible as pen-and-paper methods. The proposed assessment model based on data fusion combined with a qualitative assessment method was revealed to be suitable. Data integration raises several concerns and challenges to the design, development and application of monitoring systems applied to pain.

[JP.6] From Data Acquisition to Data Fusion: a Comprehensive Review and a Roadmap for the Identification of Activities of Daily Living using Mobile Devices

Pires I., Garcia N., Pombo N., Flórez-Revuelta F.
Journal PaperSensors, 2016, Volume 16, Issue 2

Abstract

This paper focuses on the research on the state of the art for sensor fusion techniques, applied to the sensors embedded in mobile devices, as a means to help identify the mobile device user’s daily activities. Sensor data fusion techniques are used to consolidate the data collected from several sensors, increasing the reliability of the algorithms for the identification of the different activities. However, mobile devices have several constraints, e.g., low memory, low battery life and low processing power, and some data fusion techniques are not suited to this scenario. The main purpose of this paper is to present an overview of the state of the art to identify examples of sensor data fusion techniques that can be applied to the sensors available in mobile devices aiming to identify activities of daily living (ADLs).

[BC.6] Towards interoperable enhanced living environments

Spinsante S., Gambi E., Montanini L., Raffaeli L., Lambrinos L., Felizardo V., Pombo N., Garcia N.
Book ChapterActive and Assisted Living: Technologies and Applications, IET, 2016 ISBN: 9781849199872

[BC.5] Computerized systems for remote pain monitoring: a case study of ambulatory post-operative patients

Pombo N., Garcia N.
Book ChapterIntroduction to Smart eHealth and eCare Technologies, CRC Press, 2016 ISBN: 9781498745659

[CP.16] Elderly mobility analysis during Timed Up and Go test using biosignals

Reis S., Felizardo V., Pombo N., Garcia N.
Conference PaperACM Software Development and Technologies for Enhancing Accessibility and Fighting Info-exclusion (DSAI), Vila Real, Portugal, December 1-3, 2016

[CP.15] Smartphones as Multipurpose Intelligent Objects for AAL: Two Case Studies

Spinsante S., Montanini L., Gambi, L. Lambrinos, E., Pereira F., Pombo N., Garcia N.
Conference Paper2nd EAI International Conference on Smart Objects and Technologies for Social Good (GOODTECHS), Venice, Italy, November 30-December 1, 2016

[CP.14] Contribution of Biosignals for Emotional Analysis on Image Perception

Alexandre I., Felizardo V., Pombo N., Garcia N.
Conference Paper2nd IET International Conference on Technologies for Active and Assisted Living (TechAAL), London, UK, October 24-25, 2016

[CP.13] ubiSleep: An Ubiquitous Sensor System for Sleep Monitoring

Pombo N., Garcia N.
Conference Paper4th International IEEE Workshop on e-Health Pervasive Wireless Applications and Services (e-HPWAS), New York, USA, October 17-20, 2016

[CP.12] Sleep Apnea Detection Using a Feed-Forward Neural Network on ECG Signal

Pinho A., Pombo N., Garcia N.
Conference PaperIEEE 18th International Conference on e-Health Networking, Applications and Services (Healthcom), Munich, Germany, October 14-17, 2016

[CP.11] Electrocardiography, Electromyography, and Accelerometry Signals Collected with BITalino While Swimming: Device Assembly and Preliminary Results

Pinto A., Dias G., Felizardo V., Pombo N., Silva H., Fazendeiro P., Crisóstomo R., Garcia N.
Conference PaperIEEE 12th International Conference on Intelligent Computer Communication and Processing (ICCP), Cluj-Napoca, Romania, September 8-10, 2016

[CP.10] A Data Fusion Model to Evaluate Computerized Pain Diaries on Anxiety and Depression Assessment

Pombo N., Garcia N., Bousson K.
Conference PaperIEEE International Black Sea Conference on Communications and Networking (BlackSeaCom). Varna, Bulgaria; June 6-9, 2016

[CP.9] Metabolic.Care: a novel solution based on a thermography for detection of diabetic foot

Felizardo V., Rodrigues H., Garcia CN., Alexandre C., Oliveira D., Sousa P., Garcia N., Pombo N.
Conference Paper7th International Conference on Ambient Intelligence (ISAmI), Sevilla, Spain, June 1-3, 2016

[CP.8] Identification of Activities of Daily Living using Sensors Available on Off-the-shelf Mobile Devices: Research and Hypothesis

Pires I., Garcia N., Pombo N., Flórez-Revuelta F.
Conference Paper7th International Conference on Ambient Intelligence (ISAmI), Sevilla, Spain, June 1-3, 2016

[BC.4] From Data to Knowledge: Towards Clinical Machine Learning Automation

Pombo N., Bousson K., Araújo P.
Book ChapterAmbient Assisted Living, From Technology to Intervention, CRC Press, 2015 ISBN: 1439869847

[BC.3] Artificial Neural Learning Based on Big Data Process for eHealth Applications

Pombo N., Garcia N., Bousson K., Felizardo V.
Book ChapterArtificial Intelligence Technologies and the Evolution of Web 3.0, IGI Global, 2015 ISBN: 9781466681477

[CP.7] Combining Data Imputation and Statistics to Design a Clinical Decision Support System for Post-Operative Pain Monitoring

Pombo N., Rebelo R., Araújo P., Viana J.
Conference PaperInternational Conference on Health and Social Care Information Systems and Technologies (HCist), Vilamoura, Portugal, October 7-9, 2015

[CP.6] Assistive Technologies for Homecare: Outcomes from Trial Experiences

Pombo N., Spinsante S., Chiatti C., Gambi E., Garcia N.
Conference Papers7th ICT Innovations Conference, Ohrid, R. Macedonia, October 1-4, 2015

[CP.5] Differential image analysis using Shannon’s entropy: preliminary results

Garcia N., Santos M., Pombo N., Redol J., Spinsante S.
Conference Paper7th ICT Innovations Conference, Ohrid, R. Macedonia, October 1-4, 2015

[JP.5] Evaluation of a Smartphone Application connected to a Web-based System for Remote Monitoring of Post-Operative Pain in Ambulatory Surgery: a randomised controlled trial

Viana J., Pombo N., Araújo P.,
Journal PaperEuropean Journal of Anaesthesiology, 2014, Volume 31,

Abstract

Objective: The occurrence of pain accounts for billions of dollars in annual medical expenditures; loss of quality of life and decreased worker productivity contribute to indirect costs. As pain is highly subjective, clinical decision support systems (CDSSs) can be critical for improving the accuracy of pain assessment and offering better support for clinical decision-making. This review is focused on computer technologies for pain management that allow CDSSs to obtain knowledge from the clinical data produced by either patients or health care professionals. Methods and materials: A comprehensive literature search was conducted in several electronic databases to identify relevant articles focused on computerised systems that constituted CDSSs and include data or results related to pain symptoms from patients with acute or chronic pain, published between 1992 and 2011 in the English language. In total, thirty-nine studies were analysed; thirty-two were selected from 1245 citations, and seven were obtained from reference tracking. Results: The results highlighted the following clusters of computer technologies: rule-based algorithms, artificial neural networks, nonstandard set theory, and statistical learning algorithms. In addition, several methodologies were found for content processing such as terminologies, questionnaires, and scores. The median accuracy ranged from 53% to 87.5%. Conclusions: Computer technologies that have been applied in CDSSs are important but not determinant in improving the systems’ accuracy and the clinical practice, as evidenced by the moderate correlation among the studies. However, these systems play an important role in the design of computerised systems oriented to a patient's symptoms as is required for pain management. Several limitations related to CDSSs were observed: the lack of integration with mobile devices, the reduced use of web-based interfaces, and scarce capabilities for data to be inserted by patients.

[JP.4] Knowledge Discovery in Clinical Decision Support Systems for Pain Management: A Systematic Review

Pombo N., Araújo P., Viana J.
Journal PaperArtificial Intelligence in Medicine, 2014, Volume 60, Pages 1-11

Abstract

Objective: The occurrence of pain accounts for billions of dollars in annual medical expenditures; loss of quality of life and decreased worker productivity contribute to indirect costs. As pain is highly subjective, clinical decision support systems (CDSSs) can be critical for improving the accuracy of pain assessment and offering better support for clinical decision-making. This review is focused on computer technologies for pain management that allow CDSSs to obtain knowledge from the clinical data produced by either patients or health care professionals. Methods and materials: A comprehensive literature search was conducted in several electronic databases to identify relevant articles focused on computerised systems that constituted CDSSs and include data or results related to pain symptoms from patients with acute or chronic pain, published between 1992 and 2011 in the English language. In total, thirty-nine studies were analysed; thirty-two were selected from 1245 citations, and seven were obtained from reference tracking. Results: The results highlighted the following clusters of computer technologies: rule-based algorithms, artificial neural networks, nonstandard set theory, and statistical learning algorithms. In addition, several methodologies were found for content processing such as terminologies, questionnaires, and scores. The median accuracy ranged from 53% to 87.5%. Conclusions: Computer technologies that have been applied in CDSSs are important but not determinant in improving the systems’ accuracy and the clinical practice, as evidenced by the moderate correlation among the studies. However, these systems play an important role in the design of computerised systems oriented to a patient's symptoms as is required for pain management. Several limitations related to CDSSs were observed: the lack of integration with mobile devices, the reduced use of web-based interfaces, and scarce capabilities for data to be inserted by patients.

[JP.3] Applied computer technologies in clinical decision support systems for pain management: A systematic review

Pombo N., Araújo P., Viana J.
Journal PaperJournal of Intelligent and Fuzzy Systems, 2014, Volume 26, Pages 2411-25

Abstract

Millions of people around the world suffer from pain, acute or chronic and this raises the importance of its screening, assessment and treatment. Pain, is highly subjective and the use of clinical decision support systems (CDSSs) can play an important part in improving the accuracy of pain assessment, and lead to better clinical practices. This review examines CDSSs, in relation to computer technologies and was conducted with the following electronic databases: CiteSeerx, IEEE Xplore, ISI Web of Knowledge, Mendeley, Microsoft Academic Search, PubMed, Science Accelerator, Science.gov, ScienceDirect, SpringerLink, and The Cochrane Library. The studies referenced were compiled with several criteria in mind. Firstly, that they constituted a decision support system. Secondly, that study data included pain values or results based on the detection of pain. Thirdly, that they were published in English, between 1992 and 2011, and finally that they focused on patients with acute or chronic pain. In total, thirty-nine studies highlighted the following topics: rule based algorithms, artificial neural networks, rough and fuzzy sets, statistical learning algorithms, terminologies, questionnaires and scores. The median accuracy ranged from 53% to 87.5%. The lack of integration with mobile devices, the limited use of web-based interfaces and the scarcity of systems that allow for data to be inserted by patients were all limitations that were detected.

[JP.2] Evaluation of a Ubiquitous and Interoperable Computerised System for Remote Monitoring of Ambulatory Post-Operative Pain: A Randomised Controlled Trial

Pombo N., Araújo P., Viana J., Costa D.
Journal Paper Technology and Health Care, 2014, Volume 22, Issue 1, Pages 63-75

Abstract

BACKGROUND: For economic reasons, i.e., to reduce costs of in-hospital patient accommodations, constant pressure has been applied in recent years to increase the percentage of ambulatory surgeries. Effective control of post-operative pain after ambulatory surgery is challenging to all health professionals. Computerised systems are being implemented more frequently for remote patient monitoring, including during the at-home post-operative period. OBJECTIVE: This study evaluates the feasibility of delivering a computerised system, developed in-house, for remote pain monitoring. It evaluates the user-friendliness of the system and the extent of patient compliance. Finally, a comparative assessment of the system is made with respect to the quality of pain treatment in ambulatory surgery. METHODS: The participants included 32 adults, aged 18–75, randomly assigned to a control group or to a computerised treatment group. The primary treatment outcome was measured by pain intensity ratings (0–10 NRS) reported several times per day during a five-day monitoring period, using an electronic pain diary combined with a web-based personal health record. RESULTS AND CONCLUSIONS: The findings demonstrated the feasibility and suitability of the proposed system for pain management. Its handling was user-friendly, without requiring advanced skill or prior experience. In addition, the results showed that the guidance of health care professionals is essential to patients' satisfaction and positive experience with the system. There were no significant group differences with respect to improvements in the quality of pain treatment; however, this can be explained by the low pain scores registered in both groups, related to the type of surgical interventions recruited and the degrees of pain that are easily treated. To evaluate the benefits from a patient-centred perspective, studies of major ambulatory surgeries or of patients in chronic pain, including oncologic and non-oncologic pain resistant to treatment, are necessary.

[JP.1] Medical Decision-making Inspired from Aerospace Multisensor Data Fusion Concepts

Pombo N., Bousson K., Araújo P., Viana J.
Journal PaperInformatics for Health & Social Care, 2014, Pages 185-197

Abstract

In recent years, Internet-delivered treatments have been largely used for pain monitoring, offering healthcare professionals and patients the ability to interact anywhere and at any time. Electronic diaries have been increasingly adopted as the preferred methodology to collect data related to pain intensity and symptoms, replacing traditional pen-and-paper diaries. This article presents a multisensor data fusion methodology based on the capabilities provided by aerospace systems to evaluate the effects of electronic and pen-and-paper diaries on pain. We examined English-language studies of randomized controlled trials that use computerized systems and the Internet to collect data about chronic pain complaints. These studies were obtained from three data sources: BioMed Central, PubMed Central and ScienceDirect from the year 2000 until 30 June 2012. Based on comparisons of the reported pain intensity collected during pre- and post-treatment in both the control and intervention groups, the proposed multisensor data fusion model revealed that the benefits of technology and pen-and-paper are qualitatively equivalent [Formula: see text]. We conclude that the proposed model is suitable, intelligible, easy to implement, time efficient and resource efficient.

[BC.2] Machine Learning Approaches to Automated Medical Decision Support Systems

Pombo N., Garcia N., Bousson K., Felizardo V.
Book ChapterHandbook of Research on Artificial Intelligence Techniques and Algorithms, IGI Global, 2014 ISBN: 9781466672581

[CP.4] Big Data Reduction Using RBFNN: A Predictive Model for ECG Waveform for eHealth platform integration

Pombo N., Garcia N., Bousson K., Felizardo V.
Conference PaperIEEE 16th International Conference on e-Health Networking, Applications and Services (Healthcom), Natal, Brazil, October 15-18, 2014.

[CP.3] Sistema Ubíquo para Acompanhamento de Pessoas Idosas

Nave B., Pombo N., Araújo P.
Conference PaperInternational Conference on Engineering (ICEUBI), Covilhã, Portugal, 2013.

[BC.1] Web Services For Chronic Pain Monitoring

Pombo N., Araújo P., Viana J.
Book ChapterIAENG Transactions on Electrical Engineering, World Scientific Publishing Company, 2012 ISBN: 9789814439077

[CP.2] Contribution of Web Services to Improve Pain Diaries Experience

Pombo N., Araújo P., Viana J., Junior B., Serrano R.
Conference PaperInternational MultiConference of Engineers and Computer Scientists (IMECS), Hong-Kong, March 14-16, 2012.

[CP.1] EasyBuild - Geração automática de interfaces para aplicações de sistemas de informação

Pombo N., Araújo P.
Conference Paper2nd Iberian Conference on Information Sciences and Technologies (CISTI), Porto, Portugal, 2007.