Jordan Aiko Deja

Jordan Aiko Deja
University of Primorska | UP · Department of Information Sciences and Technologies

PhD in Computer Science (ongoing)
Pursuing a PhD on HCI, music learning, viz and user modeling.

About

35
Publications
68,029
Reads
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60
Citations
Introduction
I am a PhD student working on computational interactions and adaptive visualizations on music learning, in the HICUP research group at the University of Primorska, Slovenia, supervised by Assoc. Prof. Matjaž Kljun and Asst. Prof. Klen Čopič Pucihar. At present, I am a visiting PhD student at the Magic Lab headed by Dr Jessica Cauchard where we doing research on human-drone interaction.
Additional affiliations
February 2020 - present
University of Primorska
Position
  • Research Assistant
February 2020 - present
User Experience Philippines (UXPH)
Position
  • Senior Researcher
Description
  • Director and advisor for research.
January 2017 - January 2021
De La Salle University
Position
  • Faculty Member
Education
October 2019 - September 2023
University of Primorska
Field of study
  • Computer Science
May 2011 - August 2015
De La Salle University
Field of study
  • Human Computer Interaction
May 2005 - December 2008
De La Salle Canlubang
Field of study
  • Software Engineering

Publications

Publications (35)
Chapter
Full-text available
A dataset is built into a model for the classification of OPM songs into ten specific genres. Low-level musical features in the form of digital signals, like Spectral Centroid, Mel-Frequency Cepstral Coefficients among others, were collected to build the data set. A collection of 1000 songs, having 100 instances as representatives for each of the 1...
Preprint
Full-text available
Humans have been developing and playing musical instruments for millennia. With technological advancements, instruments were becoming ever more sophisticated. In recent decades computer-supported innovations have also been introduced in hardware design, usability, and aesthetics. One of the most commonly digitally augmented instruments is the piano...
Preprint
Full-text available
For around 300 years, humans have been learning to play the modern piano either with a teacher or on their own. In recent years teaching and learning have been enhanced using augmented technologies that support novices. Other technologies have also tried to improve different use cases with the piano, such as composing and performing. Researchers an...
Preprint
Full-text available
Machine Learning (ML) suites, while readily available for practical use, are not easily usable. There are several publicly available packaged software and console libraries that are available as well. However, novice programmers tend to avoid these ML suites due to the abstractions with pre-existing tools. Users who know how these models work have...
Preprint
Full-text available
The process of learning the piano for novices is usually difficult and time-consuming. Several approaches in augmented reality such as piano-roll visualizations have been explored but have not garnered enough success and adoption. These piano roll prototypes have introduced several features and modules that assist novices on aspects such in sight r...
Preprint
Full-text available
Learning the piano is hard and many approaches including piano roll visualisations have been explored in order to support novices and seasoned learners in this process. However, existing piano roll prototypes have not considered the spatiotemporal component (user’s ability to press on a moving target) when generating these visualisations and user m...
Conference Paper
Full-text available
Music and sounds have always been an integral part of our society since the prehistoric times. However, music listening has moved from a social experience to a more personal one with audio systems such as speakers moving ever closer to our ear canal. Based on this pattern and various futuristic visions of how we are going to listen to music, one ca...
Preprint
Full-text available
Classifying emotions in music is a complex task due to the sub- jectivity of emotions. We explore the behavior of classifiers when classifying emotions in music using labels from individual music experts versus labels computed via the consensus of several experts. We performed statistical tests of significance on the precision, recall, and AUC-ROC...
Preprint
Full-text available
Music has always been an integral part of our society since the prehistoric times. For the past five centuries, music instruments have been perfected and the industry is nowadays worth billions of dollars. With recent innovations in computer interfaces, music information retrieval and artificial intelligence, playing music is not in the sole domain...
Preprint
Full-text available
DevOps is usually an industry approach that is practiced by seasoned and experienced programmers and developers. In most university settings especially in the Philippine context, DevOps is not usually part of the curriculum and in some cases are only introduced to learner programmers as an elective or as bonus material. We refer to these students i...
Preprint
Full-text available
In a university setting, academic timetabling has been an open opportunity for developers and system designers. It is usually focused on generating schedules, managing conflicts, accommodating constraints and even allocating respective logistical needs. There are several off-the-shelf and customized systems that have been developed to accommodate t...
Conference Paper
Full-text available
We developed a mixed reality guidance system (MRGS) for motherboard assembly with purpose of exploring the usability and viability of using mixed reality and tangible augmented reality (TAR) for simulating hands-on manual assembly tasks. TAR was used to remove the need for real-world parts as well as to provide a natural interaction medium for our...
Conference Paper
Full-text available
Many video interfaces enable multiple sources of input video in displaying and streaming vital information. Most of these setups can be seen in deployed security systems and observer footage that are usually used for surveillance and crisis monitoring. In this study, we consider a crowd-sourced approach to multiple sources of video and aim to desig...
Conference Paper
Full-text available
There are several machine learning suites, applications and platforms that are readily-available right now. However, these applications require a basic foundation in machine learning making them appear difficult to configure. We introduce the use of the Sandbox approach with the goal of designing alternative programming interfaces and interactions...
Conference Paper
Full-text available
In this study, we present the music composition tool Flow and how an interaction was designed that led towards introducing balance in the work of musicians across all stages in musical composition. Observation and user research led to having a deeper understanding of the various needs, gains and pain points musicians encounter when composing. Music...
Conference Paper
Full-text available
Several Sign Language (SL) systems have been developed using various technologies: Kinect, armbands, and gloves. Majority of these studies never considered user experience as part of their approach. With that, we propose a new framework that eases usability by employing two-arm gestural electromyography instead of typical vision-based systems see F...
Chapter
Full-text available
Music composition is a delicate and disciplined art form that is tedious and repetitive. In this preliminary study, we explore the design of an interaction that aims to balance the work of composers with the help of a mobile application. The process of musical composition is not easy for composers. Certain tasks such as figuring out succeeding note...
Chapter
Full-text available
Several Sign Language (SL) systems have been developed using various technologies: Kinect, armbands, and gloves. Majority of these studies never considered user experience as part of their approach. With that, we propose a new framework that eases usability by employing two-arm gestural electromyography instead of typical vision-based systems see F...
Poster
Full-text available
The task of music composition consists of hardwork, disci- pline and skill. Several applications have been developed that have displayed artificial creativity in music to assist in the task of composition. However, some of these applica- tions are considered unnatural and synthetic by most musi- cians. We intend to focus not on the application feat...
Poster
Full-text available
Heuristic evaluation is an important form of quality assurance and an important phase of UX design. This typically takes a long time since it involves consolidating opinions of multiple design experts. It is desirable to automate the detection of usability issues in a given user interface design to lessen the expense and time needed to hire profess...
Preprint
Full-text available
TV Commercials are often considered to be noise that viewers see in between their favorite shows. These have been used for mostly commercial and advertising purposes. Such practice has been an established one for decades. Most advertising researchers have always relied on traditional means and techniques in measuring viewer experiences and understa...
Conference Paper
Full-text available
TV Commercials are often considered to be noise that viewers see in between their favorite shows. These have been used for mostly commercial and advertising purposes. Such practice has been an established one for decades. Most advertising researchers have always relied on traditional means and techniques in measuring viewer experiences and understa...
Conference Paper
Full-text available
In this work-in-progress, we propose the design of an interaction that allows a guitar player to air guitar with the use of forearm Electromyogram (EMG). We integrate results from our previous study where we have used the same medium in training a classifier to recognize standard guitar chords. In this paper, we aim to train a classifier this time...
Preprint
Full-text available
Music composition is a delicate and disciplined art form that is tedious and repetitive. In this preliminary study, we explore the design of an interaction that aims to balance the work of composers with the help of a mobile application. The process of musical composition is not easy for composers. Certain tasks such as figuring out succeeding note...
Preprint
Full-text available
In this work-in-progress, we propose the design of an interaction that allows a guitar player to air guitar with the use of forearm Electromyogram (EMG). We integrate results from our previous study where we have used the same medium in training a classifier to recognize standard guitar chords. In this paper, we aim to train a classifier this time...
Preprint
Full-text available
Several Sign Language (SL) systems have been developed using various technologies: Kinect, armbands, and gloves. Majority of these studies never considered user experience as part of their approach. With that, we propose a new framework that eases usability by employing two-arm gestural electromyography instead of typical vision-based systems see F...
Poster
Full-text available
We explore the use of forearm electromyography (EMG) as a gestu- ral input interface, or the captured biofeedback signals found in the muscles, towards modeling how beginner and seasoned guitar users plot chords in the fretboard. We intend to contribute to a paradigm of studies that propose a new set of interactions with an existing device, integra...
Technical Report
Full-text available
Autism Spectrum Disorder (ASD), according to centers for disease control and prevention (CDC), is a group of developmental disabilities that can cause significant social, communication and behavioral challenges. There is often nothing about how people with ASD look that sets them apart from other people, but people with ASD may communicate, interac...
Conference Paper
Full-text available
With the growth of technologies and the line between the traditional and virtual classrooms blurring, learning can take place basically anywhere. Self-Initiated Learning Scenarios are environments that enable students to learn on their own without the supervision of a teacher. Self-regulated learners are students who can greatly-benefit from these...
Research
Full-text available
Human communication is an important aspect of human society and should be freely accessible to all individual, whatever imparities’ a person may have. Several studies to solve the problem through automated sign language recognition have already been made using various techniques and technology available. In this study, we attempted to create a full...
Research
Full-text available
With the growth of technologies and the line between the traditional and virtual classrooms blurring, learning can take place basically anywhere. Self-Initiated Learn- ing Scenarios are environments that enable students to learn on their own without the supervision of a teacher. Self-regulated learners are students who can greatly-benefit from thes...
Research
Full-text available
he production of the KINECT along with the release of the Windows SDK has paved the way for a widened array of applications for it. This paper discusses the design, development and testing of a software prototype called KRIS. The KINECT Remote Integrated System (KRIS) enables users to showcase their presentations without the need for laser pointers...
Conference Paper
Full-text available
The trend on the application of Digital Image Processing has paved for a future consists of an automated workforce where the goal is to minimize the number of errors that is induced by continuous hours of working. This setup is followed in institutions where access to the premises of a vehicle is determined by the detection of an authorized sticker...

Questions

Question (1)
Question
Apparently Myo cant let u see EMG data
We need a not-so-expensive EMG device that lets you see and train EMG data for possible research along with brainwaves. 

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Cited By

Projects

Projects (8)
Project
Learning the piano is hard and many approaches including piano roll visualisations have been explored in order to support novices and seasoned learners in this process. However, existing piano roll prototypes have not considered the spatiotemporal component (user’s ability to press on a moving target) when generating these visualisations and user modelling. In this PhD, we are going to look into two different approaches: (i) exploring whether existing techniques in single-target spatiotemporal modelling can be adapted to a multi-target scenario such as when learners use several fingers to press multiple moving targets when playing the piano, and (ii) exploring heuristics defined by experts marking various difficult parts of songs, and deciding on specific interventions needed for these marked parts. Using models and input from the experts we will design and build an adaptive piano roll training system. We will evaluate and compare these models in various user studies involving users trying to play piano pieces and develop their improvisation skills. We intend to uncover whether these adaptive visualisations will be helpful in the overall training of piano learners. Additionally, these models and adaptive visualisations will allow us to discover affordances that can potentially improve piano learning in general.
Project
DevOps is a rare skill found among university fresh graduates. Getting accessible training is usually privileged or even harder to acquire. While software engineering best practices are slowly being taught in the modern CS curriculum, DevOps have yet to be included in the content offered to students. Given the rising demand for DevOps and the lack of preparation among novice programmers, this research attempts to identify the factors that can support integration of DevOps at an early stage.
Archived project
We seek to design, develop and evaluate intelligent and collaborative user interfaces that humans can use for specific use-cases such as machine learning, student information systems, experience design and many others.