I am a data scientist and researcher.

“[The human mind] operates by association. With one item in its grasp, it snaps instantly to the next that is suggested by the association of thoughts, in accordance with some intricate web of trails...”
(Vannevar Bush, As We May Think, 1945)

My Research

My Publications

Research Vision

My research vision is to empower users to intuitively find relevant information they need amidst the fast-growing amount of information available on the Web and on Social Media. I aim to achieve this goal by establishing new relationships amongst diverse information objects thereby leading to recommendations users would otherwise not have found on their own.

Research Statement

My current research is focused on providing data analytics and AI solutions to alleviate the acute information overload problem facing research and health institutions in dealing with the fast-growing amount of diverse research objects and research related data on the Web and on social media. Thereby uncovering insights and enhancing the value gained from scholarly and health-related big data.

Research Projects

    Modelling and Optimising Homecare and Caregiving Services for the Elderly – HOCAMOSE (2017 – 2019)

    Managing a 3-year MOH-funded research project to develop a homecare and caregiving system for optimising services for the elderly Managing a team of 17 full-time staff, coordinating research activities, managing project’s budget, preparing reports, audits, and deliverables Analyzing requirements and designing a health-care monitoring system Conducting user acceptance testing with 23 participants Conducting a successful feasibility study with 32 elderly participants and 14 caregivers Conducting a successful 6-month efficacy study with 96 elderly participants and 85 caregivers Analysing sensor data, writing 2 publications

    Altmetrics - Rethinking and Exploring New Ways of Measuring Research Outputs (2015 – 2018)

    Managing a 3-year NRF-funded research project to develop an innovative cross-metric validation framework and dashboard to compare traditional metrics with altmetrics (new metrics based on social media) Managing a team of 6 full-time staff, coordinating research activities, managing project’s budget and preparing project’s deliverables Designing a system prototype Altmetrics for Research Impact Actuation (ARIA) to measure the research impact of scholarly and scientific publishing Investigating effects of disseminating research works on social media and the influence of prestigious citations on the metrics of publications Publishing 12 articles, submitted a technology disclosure, organized an international workshop Conducting a user survey on familiarity and usage of altmetrics with 448 participants Conducting a semi-structured interview study on strategies to evaluate and promote research outputs with 18 participants Conducting a usability study with 20 participants

    Kudos Data Analysis Research Collaboration Project (2016)

    Managing a 4-month data analysis research collaboration project – a case study to investigate the impact of using Kudos, a web-based service, to disseminate research outputs Coordinating research activities with international partners and preparing project deliverables Analysing social media, pre-processing and analysing ca. 800,000 publications and metrics using the statistical tool R, writing one journal publication

    Collaborative Management of Web Resources for Learning Purposes (CROKODIL)(2010 – 2014)

    Designing and developing an innovative Web2.0 platform for collaborative learning on the Web as part of a 3-year DFG research project. Designing, implementing and evaluating novel hybrid graph-based recommender algorithms, with findings presented at 10 international conferences and workshops, written 18 publications, supervision of 5 Master and Bachelor theses. Implementing the agile scrum software development methodology, Semantic knowledge networks, Ontology modelling and Semantic tagging technology


    Work Experience

    • 2015 - 2019 Senior Research Fellow
      Scientific research, project management and academic work experience
      Centre for Healthy and Sustainable Cities (CHESS), Wee Kim Wee School of Communication and Information (WKWSCI), Nanyang Technological University (NTU), Singapore.
    • 2015 Adjunct Senior Scientist
      Scientific collaboration in the fields of recommender systems, collaborative knowledge acquisition and technology enhanced learning
      KOM - Multimedia Communications Lab, Technische Universität Darmstadt, Germany
    • 2010 - 2014 Scientist / Doctoral Researcher
      Scientific research and academic work experience
      KOM - Multimedia Communications Lab, Technische Universität Darmstadt, Germany
    • 2006 - 2010 Business / Functional Analyst
      IT specialist for international IT projects with UK, USA and the Philippines
      Human Resources IT, Deutsche Bank, Frankfurt, Germany


    • 2010 - 2014 PhD / Doctorate in Information Technology
      PhD thesis: Personalized Recommender Systems for Resource-based Learning - Hybrid Graph-based Recommender Systems for Folksonomies. Grade: summa cum laude
      Technische Universität Darmstadt, Germany
    • 1999 - 2006 German Diplom (eq. MSc.) in Computer Science with subsidiary Psychology
      Diplom thesis (eq. Master thesis): A SCORM conform Sequencing Editor based on Formative Assessment
      Technische Universität Darmstadt, Germany