Konstantinos Perakis

Dr. Konstantinos Perakis

orcid

Research Focus & Metrics

Academic Career Length

13Years (2014-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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17 March 2023 in Nutrients
Verified
Journal Article
Open access
PDF file
KZKonstantia Zarkogianni
Konstantia Zarkogianni
ECEvi Chatzidaki
Evi Chatzidaki
NPNektaria Polychronaki
Nektaria Polychronaki
EKEleftherios Kalafatis
Eleftherios Kalafatis
NNNicolas Nicolaides
Nicolas Nicolaides
KNKonstantina S. Nikita
Konstantina S. Nikita
Childhood obesity constitutes a major risk factor for future adverse health conditions. Multicomponent parent–child interventions are considered effective in controlling weight. Τhe ENDORSE platform utilizes m-health technologies, Artificial Intelligence (AI), and serious games (SG) toward the creation of an innovative software ecosystem connecting healthcare professionals, children, and their parents in order to deliver coordinated services to combat childhood obesity. It consists of activity trackers, a mobile SG for children, and mobile apps for parents and healthcare professionals. The heterogeneous dataset gathered through the interaction of the end-users with the platform composes the unique user profile. Part of it feeds an AI-based model that enables personalized messages. A feasibility pilot trial was conducted involving 50 overweight and obese children (mean age 10.5 years, 52% girls, 58% pubertal, median baseline BMI z-score 2.85) in a 3-month intervention. Adherence was measured by means of frequency of usage based on the data records. Overall, a clinically and statistically significant BMI z-score reduction was achieved (mean BMI z-score reduction −0.21 ± 0.26, p-value < 0.001). A statistically significant correlation was revealed between the level of activity tracker usage and the improvement of BMI z-score (−0.355, p = 0.017), highlighting the potential of the ENDORSE platform.

5 April 2023 in Nutrients
Verified
Journal Article
Open access
PDF file
Panagiota PervanidouPanagiota Pervanidou
Panagiota Pervanidou
ECEvi Chatzidaki
Evi Chatzidaki
NNNicolas Nicolaides
Nicolas Nicolaides
AVAntonis Voutetakis
Antonis Voutetakis
NPNektaria Polychronaki
Nektaria Polychronaki
CKChristina Kanaka-Gantenbein
Christina Kanaka-Gantenbein
Childhood obesity is a serious public health problem worldwide. The ENDORSE platform is an innovative software ecosystem based on Artificial Intelligence which consists of mobile applications for parents and health professionals, activity trackers, and mobile games for children. This study explores the impact of the ENDORSE platform on metabolic parameters associated with pediatric obesity and on the food parenting practices of the participating mothers. Therefore, the metabolic parameters of the 45 children (mean age: 10.42 years, 53% girls, 58% pubertal, mean baseline BMI z-score 2.83) who completed the ENDORSE study were evaluated. The Comprehensive Feeding Practices Questionnaire was used for the assessment of food parenting practices. Furthermore, regression analysis was used to investigate possible associations between BMI z-score changes and changes in metabolic parameters and food parenting practices. Overall, there was a statistically significant reduction in glycated hemoglobin (mean change = −0.10, p = 0.013), SGOT (mean change = −1.84, p = 0.011), and SGPT (mean change = −2.95, p = 0.022). Emotional feeding/food as reward decreased (mean change −0.21, p = 0.007) and healthy eating guidance increased (mean change = 0.11, p = 0.051). Linear regression analysis revealed that BMI z-score change had a robust and significant correlation with important metabolic parameters: HOMA-IR change (beta coefficient = 3.60, p-value = 0.046), SGPT change (beta coefficient = 11.90, p-value = 0.037), and cortisol change (beta coefficient = 9.96, p-value = 0.008). Furthermore, healthy eating guidance change had a robust negative relationship with BMI z-score change (beta coefficient = −0.29, p-value = 0.007). Conclusions: The Endorse digital weight management program improved several metabolic parameters and food parenting practices.

24 December 2021
Verified
Book Chapter
Open access
PDF file
RMRichard McCreadie
Richard McCreadie
KPKonstantinos Perakis
Konstantinos Perakis
MSMaanasa Srikrishna
Maanasa Srikrishna
NDNikolaos Droukas
Nikolaos Droukas
SPStamatis Pitsios
Stamatis Pitsios
IOIadh Ounis
Iadh Ounis
Recent advances in Big Data and Artificial Intelligence have created new opportunities for AI-based agents, referred to as Robo-Advisors, to provide financial advice and recommendations to investors. In this chapter, we will introduce the concept of investment recommendation and describe how automated services for this task can be developed and tested. In particular, this chapter covers the following core topics: (1) the legal landscape for investment recommendation systems, (2) what financial asset recommendation is and what data it needs to function, (3) how to clean and curate that data, (4) approaches to build/train asset recommendation models and (5) how to evaluate such systems prior to putting them into production.

22 January 2021
Verified
Book Chapter
Closed access
PDF file
DMDimitrios Miltiadou
Dimitrios Miltiadou
SPStamatis Pitsios
Stamatis Pitsios
DSDimitrios Spyropoulos
Dimitrios Spyropoulos
DADimitrios Alexandrou
Dimitrios Alexandrou
FLFenareti Lampathaki
Fenareti Lampathaki
KPKonstantinos Perakis
Konstantinos Perakis

29 April 2022
Verified
Book Chapter
Open access
PDF file
DMDimitris Miltiadou
Dimitris Miltiadou
SPStamatis Pitsios
Stamatis Pitsios
SKSpyros Kasdaglis
Spyros Kasdaglis
DSDimitrios Spyropoulos
Dimitrios Spyropoulos
GMGeorgios Misiakoulis
Georgios Misiakoulis
KPKonstantinos Perakis
Konstantinos Perakis
Open banking holds the potential of expanding traditional banking data flows, placing the customer at its core and in control of their banking data, including their personal information. Consent management enables the tracking, monitoring and managing the personal data lifecycle in a GDPR compliant manner, and improves customers’ control over their data, empowering them to manage their consent throughout its lifecycle. However, traditional technologies have failed to become a key enabler of trust, due to multiple security/data tampering incidents. This chapter introduces a blockchain-empowered Consent Management System (CMS). It aims at presenting the design and implementation of a robust CMS, enabling the sharing of customers’ consent, thus facilitating the exchange and the utilization of customer data, across different banking institutions. The proposed CMS implementation will enable the financial institutions to effectively manage and share their customers’ consents in a transparent and unambiguous manner, ensuring compliance to PSD2 and GDRP, while lowering the barriers of secure data sharing.

22 March 2017 in Health and Technology
Verified
Journal Article
Open access
PDF file
AAAthos Antoniades
Athos Antoniades
AAAristos Aristodimou
Aristos Aristodimou
CGChristos Georgousopoulos
Christos Georgousopoulos
NFNikolaus Forgó
Nikolaus Forgó
AGAnn Gledson
Ann Gledson
Constantinos PattichisConstantinos Pattichis
Constantinos Pattichis
Electronic Health Records (EHRs) contain an increasing wealth of medical information. When combined with molecular level data, they enhance the understanding of the underlying biological mechanisms of diseases, enabling the identification of key prognostic biomarkers to disease and treatment outcomes. However, the European healthcare information space is fragmented due to the lack of legal and technical standards, cost effective platforms, and sustainable business models. There is a clear need for a framework facilitating the efficient and homogenized access to anonymized distributed EHRs, merged from multiple data sources into a single data analysis space. In this paper we present the outcomes of Linked2Safety, a project that proposes a solution to these problems by providing a semantically interconnected approach to sharing aggregate data in the form of data cubes. This approach eliminates the risks associated with sharing pseudoanonymized (and therefore still personal) data while enabling the multi-source, multi-type analysis of health data through a single web based secure access platform. The Linked2Safety system is evaluated by external to the project Medical science analysts, Analytic methodology engineers and Data providers with respect to five specific dimensions of the system (analysis space, linked data space, usability of the system, legal and ethical issues, and value of the system) in this paper. For all five dimensions that were examined, the participants’ perceptions were overwhelmingly positive.