Pichaya Tandayya

• Ph.D. (Computer Science)
• Professor (Associate) at Prince of Songkla University

Multi-organ nucleus segmentation is an important task for diagnosis, staging, and grading cancer. It is the first step of many quantitative data analysis pipelines. Most existing methods did not apply frequency-related features to extract the key spatial information. In this work, we propose the Dynamic U-Net, a novel method for multi-organ nucleus...

The satellite simulator platform is necessary for the satellite development. It is an essential tool to verify the operations of flight software. The Controller-in-the-Loop simulation with Simulation Third Generation (SimTG) existing at Thailand’s Geo-Informatics and Space Technology Development Agency (GISTDA) can help verify the flight software a...

The customer feedbacks provide alternative and important sources to discover knowledge supporting the marketers and customers to make better decisions. However, the manual process to extract useful information depends on domain experts. This paper focuses on improving the performance of the automatic sentiment information extraction from customer f...

Currently, it is the age of social market due to the growth of internet technologies. The marketers require the complete information of customer perspectives on products and services comparing with others. The RFM (recency, frequency, and monetary) model is a technique to measure a comparison of information, especially in traditional market analyti...

Scientific workflows composed of independent distributed web services let a user to easily orchestrate dataflows and processing tasks, and handle interoperations with ever more intricate workflows. Typically, these integrated workflows are complex, tightly-coupled, and computational and data intensive because of the workflow invocation management....

Phylogenetic tree analysis is a process for finding the highest possible revolution tree history of an interested organism. The important step of the process is multiple sequences alignment (MSA) which is operated using any MSA tool that produces a result in blocks of the Phylip format. Bioinformaticians have to manually determine and trim gaps of...

SNP-SNP interactions have been recognized to be basically important for understanding genetic causes of complex disease traits. Logic regression is an effective methods for identifying SNP-SNP interactions associated with risk of complex disease. However, identifying SNP-SNP interactions are computationally challenging and may take hours, weeks and...

At the present, coding sequence (CDS) has been discovered and larger CDS is being revealed frequently. Approaches and related tools have also been developed and upgraded concurrently, especially for phylogenetic tree analysis. This paper proposes an integrated automatic Taverna workflow for the phylogenetic tree inferring analysis using public acce...

There are many proposals for moving traditional video surveillance systems into the cloud, commonly known as Video Surveillance as a Service (VSaaS). Most systems use Hadoop technology for storing video records and distributing video analysis tasks. However, Hadoop is more appropriate for video retrieval services than real time video analysis. Also...

Genotype imputation based analysis usually consumes computational and data intensive. This paper presents a practical and efficient process for enhancing the genotype imputation based analysis on Single Nucleotide Polymorphism (SNP) using High Performance Computing (HPC). Our process is split into data quality control, haplotype estimation, and imp...

Cloud computing technology, especially virtualization is employed in many data centers nowadays. The key concept of virtualization concerns elastic or scalable infrastructure. This concept can be implemented by exploiting multi-tier web applications and hypervisors which are virtual machine management software. Xen hypervisor has presented its Vers...

Abstract—Nokkhum, designed and developed by PSU, is a software that provides a Video Surveillance as a Service. Our work provides a friendly graphical API for the control and configuration of Nokkhum. Our Hawkeye Community is client software that connects to the Nokkhum services and provides a compact and convenient list of drag-and-drop commands f...

Current video surveillance systems are popular on standalone applications. A free video surveillance software usually fixes its configuration on a single desktop. This makes it is hard to scale the system up for supporting many cameras. Moreover, it also needs a one-stop management service method. Our research tries to enhance OpenVSS, an open sour...

Similar to other social networking sites, Facebook was not designed for being used by the visually impaired. In research concerning about Facebook's interface, there were many problems the visually impaired using the site via a screen reader. The main issues were about web accessibility and usability. These two major issues impact on travelling thr...

The conference Program Committee has organized an exciting and balanced program comprising presentations from distinguished experts in the field, and important and wide-ranging contributions on state-of-the-art research that provides new insights into the latest innovations in Computational Intelligence, Communication Systems and Networks including...

In image processing, different groups of subalgorithms give similar outputs. Therefore, there are more than one solution to process an image for a specified result. This research uses Taverna Workbench, a workflow technology, to help the developer in designing and checking the performance of algorithm sets more easily. We propose our integrated web...

It is clear that DEWS will provide advanced information of impending tsunami arrival at beaches and coastal areas around the Indian Ocean. It is proposed in this paper that simulation of the possible effects of such tsunami from a variety of locations, directions, and magnitudes be carried out. This can be used in conjunction with the tsunami warni...

Genome-Wide Association (GWA) analysis is a powerful method for identifying loci associated with complex traits and drug response. Parts of GWA analyses, especially those involving thousands of individuals and consuming hours to months, will benefit from parallel computation. It is arduous acquiring the necessary programming skills to correctly par...

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This paper present a novel Taverna workflow for validating BioMart services. It saves a significant amount of time by avoiding incorrect workflows caused by out-of-date services. It also reduces debugging time by finding out-of-date processor query fields (filters) and output fields (attributes). In addition, it provides associated information requ...

This paper presents an obstacle detection system for the visually impaired to use with a walking stick. The system in this work can find obstacles applying the depth discontinuities Pixel-to-Pixel (P2P) stereo algorithm which is one of the Intensity-based Stereo Matching (ISM) techniques in stereo vision that can find objects with featureless surfa...

This paper describes a Taverna workflow environment with supporting web services for Single Nucleotide Polymorphisms (SNP) analysis of genes in shrimp. The workflow is used to investigate SNPs advantages for gene development. Our first workflow environment did not give satisfying results for the phylogenetic tree processes because the data flows be...

The objective of this research is to investigate dynamic responses of the piezoelectric Braille cell when it is subjected to both electrical signal and touching force. Physical behavior of the piezoelectric actuator inside the piezoelectric Braille cell is analyzed. The mathematical model of the piezoelectric Braille system is presented. Then, data...

An important part of helping blind students in their education is to have text books and reading materials available in accessible format. Braille is one format that is used and is considered essential reading and writing technique for the blind. In order to produce Braille materials quickly, Braille translation software that converts files from pr...

This work is the development of a Microsoft Windows Graphic User Interface and front-end operation program. This program integrates translation engines that translate between Braille Mathematical and Scientific texts and texts with the extensible markup languages, e.g. Chemical Markup Language and Mathematical Markup Language. This program has a gr...

This paper presents a work that supports the visually impaired to be able to use the PSU Braille computer more easily. As the PSU Braille computer uses Linux as an operating system which can be unfamiliar to many users, this work focuses on the text-based user interface and front-end operation especially designed for the visually impaired and to su...

This paper presents the development of the Braille Music and MusicML Translation. The input can be from a keyboard instrument, a Braille music file or a MusicML file. It will also play music from the input file. The program runs on Microsoft Windows and provides a graphic user interface which works with the screen reader JAWS. This work will help t...

This paper initially reviews the sequence of events surrounding the tsunami disaster, which occurred on December 26, 2004, and how this affected Thailand. The authors then consider the concepts of minimisation of the after effects, on local people, homes, businesses, stock, supplies and services, and tourism. In these respects, consideration is fir...

Disaster reduction concerns the minimisation of the consequences of a tsunami attack, in terms of minimisation of losses of lives, damage to property, business and infrastructure. This requires tsunami modelling and simulation of the local effects of the tsunami, mainly the difficult region of the last 100 m water depth to the beach and beyond. It...

This paper describes the integration of the High Level Architecture (HLA), an IEEE standard for distributed interactive simulation, with a scientific software package (Scilab) and its use for collaborative simulation development. This work is an on-going work that aims to facilitate the interoperability and reusability for Scilab simulation models....

This paper addresses the need of low-cost Braille computer notebooks with Thai and English processing capability as it would gain opportunities for visually impaired people in Thailand to work or to be employed in the field of Information Technology. In this regard, a prototype of an inexpensive product is being developed from the local-supplied pa...

Tone classification is a necessary part for Thai speech recognition. This paper present the work based on our former work described in our published paper ref. [1] and the published paper ref. [2]. Several configurations of tone classification front-end for large vocabulary Thai speech corpus are implemented and compared. They include the tone-crit...

ABTRACT The paper presents an approach to create a training simulation system for emergency rehearsal in case of flooding at Hat Yai municipality, Thailand. The simulation system applies the concept of demand and supply as well as distributed interactive simulation using High Level Architect Framework. INTRODUCTION In many areas, flooding is a natu...

Stereo vision, especially the Feature-based Stereo Matching (FSM) technique, has been used to enable the visually impaired people to detect obstacles with feature surface. However, it cannot help the visually impaired to detect objects with featureless surface. The Intensity-based Stereo Matching (ISM) technique can detect objects in with featurele...

Classical methods to support the visually impaired include using a cane and a guided dog. These methods enable the visually impaired to identify only nearby obstacles. However, they fail to allow them to detect obstacles that are located relatively farther and are mostly visible to normal sighted people. In order to address this problem, we propose...