Marko Horvat

PM, M.Eng, M.Sc., Ph.D. Cand. in Computer Science

Faculty of Electrical Engineering and Computing
University of Zagreb
Unska 3, HR-10000 Zagreb
Croatia

Room: C2-02

Phone: +385-1-6129-770
Fax: +385-1-6129-705

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Research interests
My professional areas of interest are computer science, software development and computational intelligence - especially knowledge representation formalisms, automated reasoning, annotation of multimedia documents, information retrieval and Semantic Web. My other prominent area of interest is astronomy and, in particular, Search for Extra-Terrestrial Intelligence (SETI).
Current work
I'm currently working on an intelligent generator of emotionally-annotated images which can be used in research of human-computer interfaces, affective computing, cognitive sciences and many other conjoining areas. This software tool uses ontologies for formal presentation and interference about image semantics, emotion and metadata. To test the software I have developed new upper ontology Stimulus Ontology and converted existing databases of emotionally annotated images such as International Affective Picture Systems (IAPS), The Geneva Affective PicturE Database (GAPED) or NimStim Face Stimulus Set to the new ontology-based format. The generator was designed to help psychotherapists and similar domain experts to construct personalized high-quality stimuli sequences with less effort and in less time, and at the same time helping them to focus on the subject by alleviating the need for repetitive and unnecessary work with complicated computer software. In comparison to exposure in vivo, the described tool and the constructed stimuli sequences for computer-based exposure offer many benefits such as: greater safety to the exposed subject, greater flexibility and adaptability and reduced costs. Apart from still images, the same ontology-supported paradigm may be extended to formal annotation and intelligent retrieval of video clips, virtual reality scenes, sounds, and other multimedia formats. The software is written in C#.NET and C++, uses multithreading for near real-time operation (i.e. soft real-time constraints), multiple monitors with HMD support for the operator and subject and can be deployed on a single desktop or mobile computer.
Previously developed applications

Selection of a few applications for management of multimedia stimuli that I have previously developed...
NimStim Generator



Features:
  • Generates customized image sequences using NimStim Face Stimulus Set
  • Simple and intuitive interface
  • Data backup and restore
  • Image retrieval along four data dimensions: gender, ethnicity, emotion and intensity
  • Full control of generated image sequences
  • Supports generation of customized fMRI paradigms with neutral images and cognitive visual tasks
  • Stimulus Generator











    Features:
  • Generates audio-visual stimuli sequences using International Affective Picture Systems (IAPS) and International Affective Digitized Sounds (IADS) databases
  • Simple point-and-click interface with history allows fast stimuli discovery
  • Rich visualization: adaptable sequence time graphs, val/ar plane trajectories, SAMs, etc.
  • Supports congruent and concurrent stimuli
  • Image retrieval along various data dimensions: semantics, emotion, picture set, stimulus ID, etc.
  • Independent management of IAPS and IADS semantics
  • Converts subsets of IAPS/IADS to ARFF format for data mining in Weka
  • Supports management of custom tag clouds of IAPS and IADS keywords allowing grouping of semantically similar stimuli
  • Full data backup and restore
  • Multiple monitors for operator and subject
  • HMD support
  • Deploys on a single desktop or mobile computer
  • ...
  • Emotionally annotated image database heuristic builder



    Features:
  • Batch creation of customized IAPS-compliant emotionally annotated databases
  • Uses predefined semantics and/or emotion constraints
  • Randomized selection and sorting of selected stimuli
  • Heuristic rules for filtering of unwished stimuli
  • Simple interface
  • Useful for large-scale experiments

  • Teaching
    - Algorithms and Data Structures
    - Software Design
    - Interactive Simulation Systems


    Biography
    Versatile professional with more than twelve years of progressive experience in all aspects of design, development, customization and implementation of computer systems. Competent in development of various small, mid-sized and large IT projects based on Microsoft, Sun Java and open technologies. Engaged in project management and business process management. Designed, managed, implemented and shared responsibilities in maintenance of numerous n-tier desktop, web and mobile applications in areas of company's core business, mobile telephony and ERP. Also participated in development of simulators and real-time medical systems. Personally involved in large-project development groups in Austria and Germany. Currently is a Ph.D. candidate in Computer Science at Faculty of Electrical Engineering and Computer Science in Zagreb.
    Affiliation

    Faculty of Electrical Engineering and Computing
    University of Zagreb

    Located in Zagreb, Croatia
    Professional competences
    - Thorough and generic IT proficiency, expertise and experience, strives for lifelong learning.
    - Accountability, professionalism, personal commitment, high work ethic.
    - Ability to envision and design overall architecture of an IT system.
    - International work experience. Worked in teams of various sizes.
    - Multi-year proven experience in project management with motivation through personal examples.
    - Successful in professional education, academic teaching and scientific work.
    Memberships (past & present)
    Institute of Electrical and Electronics Engineers (IEEE)
    Project Management Institute (PMI)
    International Association of CyberPsychology, Training, and Rehabilitation (iACToR)
    Croatian Astronomical Society (HAD)


    Publications
    The full list of published papers >>>
    Recent papers:
    Towards semantic and affective coupling in emotionally annotated databases (accepted for publication)
    SETI related:
    M. Horvat, A. Nakić, I. Otočan: Impact of technological synchronicity on prospects for CETI, International Journal of Astrobiology, 11, pp. 51-59, 2012 (doi:10.1017/S1473550411000322)
    M. Horvat: Calculating the probability of detecting radio signals from alien civilizations, International Journal of Astrobiology, 5, pp. 143-149, 2006 (doi: 10.1017/S1473550406003004)

    Popular science (in Croatian)

    Public lectures
    Međuzvjezdani monolog -- Popularno-znanstveni osvrt na suvremenu problematiku SETI projekata (2009)
    U potrazi za meduzvjezdanim sugovornicima (2011)

    Articles
    Čovjek i svemir: Međuzvjezdani monolog 1 (2010)
    Čovjek i svemir: Međuzvjezdani monolog 2 (2010)
    Čovjek i svemir: Međuzvjezdani monolog 3 (2010)


    Contact
    Room: C2-02

    Phone: +385-1-6129-770
    Fax: +385-1-6129-705

    Web pages:   My LinkedIn profile
         My work page


    Minor mish-mash of a slightly more memorable quotations
    Wise men talk because they have something to say; fools, because they have to say something.

    Plato (Greek philosopher, 428 BC - 348 BC), Dr. Jay Kennedy: 'The Plato Code' cracked

    The whole is more than the sum of its parts.

    Aristotle (Greek philosopher, 384 BC - 322 BC), Metaphysica

    There will come the time when attentive researches conducted through long eras will bring out to the surface what now lays hidden. A single lifetime, even if entirely devoted to the heaven, would not be enough to study something so vast… And so will the knowledge flourish only after a long list of epochs. Then will come the time when our ancestors will be amazed that we didn't know things that are completely clear to them. Many discoveries are kept for times that are yet to come, when memories of us have already faded. Our world would be a pitiful place if there wouldn't be enough to offer for research in each epoch. Nature doesn't reveal her secrets all at once and to everybody.

    Lucius Annaeus Seneca (Roman philosopher, c. 4 BC - 65 AD)

    An idea is always a generalization, and generalization is a property of thinking. To generalize means to think.

    Georg Wilhelm Friedrich Hegel (German Philosopher, 27 Aug 1770 - 14 Nov 1831)

    When facts are few, speculations are most likely to represent individual psychology.

    Carl Gustav Jung (Swiss psychiatrist, 1875 - 1961)

    Infinity is a very long time, especially towards the end.

    Woody Allen (no description necessary)


    Disclaimer: All documents, papers, presentations, specifications, articles and other scientific and technical material, together with all other accompanying material, presented and available on this Web site are the sole possession of Marko Horvat ("THE AUTHOR"). None of the mentioned material can be reprinted, duplicated, or used in any way -- non-profitable or profitable -- in material or electronic format without the explicit permission of THE AUTHOR. Any person, group, company or institution that violates any of these rules could be prosecuted to the maximum extend possible under the law.

    Copyright © 2006-2012 Marko Horvat