期刊名称：International Journal of New Computer Architectures and their Applications
印刷版ISSN：2220-9085
出版年度：2011
卷号：1
期号：2
页码：428-436
出版社：Society of Digital Information and Wireless Communications
摘要：Currently, an online forum is becoming one of the trends in social media. Social media allow people to communicate interactively so they can share their feelings and opinions. Even though, they are communicating through text, such digital element permits them to express their emotions. The information that is conveyed through texts has the potential to influent people's mind sets. In this paper, we propose to quantify people's perception in an online forum by analyzing their words. The number of occurrences for significant words is counted in order to measure their perception based on emotion and issues that they are discussing. This new approach significantly reduce the time for collecting, processing, and analyzing data, as well as visualizing results, specifically for seeking public's perception and emotion of specific issues. var currentpos,timer; function initialize() { timer=setInterval("scrollwindow()",10);} function sc(){clearInterval(timer); }function scrollwindow() { currentpos=document.body.scrollTop; window.scroll(0,++currentpos); if (currentpos != document.body.scrollTop) sc();} document.onmousedown=scdocument.ondblclick=initialize 429 2 RELATED WORK Quantifying perceptions are reality and normally measured through an offline survey. Methods in perception quantification have gradually changed from manual paper-based survey to automatic computer-based system. In paper-based survey, the preparation of questionnaire is tedious and time consuming. In addition, the choices of question and answer given to the participants are structured and limited to what is written in the likert-scale survey. Such limitation is not only due to the freedom of expressing opinion or emotion, but also in selecting the type and number of participants. Normally, the survey is sent to the chosen participants and they are expected to understand the questions and return back their responses within a specific time. Unfortunately, the response rate for paper-based survey is lower compared to internet-based survey [5]. In the paper- based survey, the participants' responses are collected for statistical analysis and visualization. These processes are also time consuming and its major drawback is its complexities that require scientific knowledge and skill in statistics which may not be understood by layman audiences [6]. Thus, the computer-based survey provides the opportunities beyond paper-based capabilities in term of information structure, participants, and time to prepare, disseminate, collect and analyze participants' responses. However, creating and conducting an online survey is a time-consuming task that requires web authoring programs, HTML code, and scripting programs [7]. There may be limitations associated with web survey products and services such as time, space, and number of respondents. Commonly, such survey is focused on specific participants whom are pre-identified. Nevertheless, the online can offer unlimited respondents covering public opinion which often used to enquire publics' perception on certain products or services. 2.1 Gathering public perception Perception is defined as the quality of understanding [8]. It includes the theory to understand the surrounding environment [9]. In Information Age, the public can express their perception in digital words. The advancement of Internet technology allows them to express their perception along with emotion in many online platforms such as Weblog, online forum, chatting and emails. Emotion classification can identify the feelings of individuals toward specific events [10]. It is not a trivial task to extract emotional information from the lexical content or meaning of the words in a blog [11]. In addition to words, there are also the emotion icons (emoticons). The emoticons are widely used to represent emotional words [12]. Therefore, public perception can be expressed by using simple but very meaningful icons which have the same meaning with the words that they want to use, such as emotion used in a Weblog computerized system [11]. 2.2 Online media Online media refers to the social media that has been used to do the social interaction with each other online. The example of online media which related to social media is social networking websites, forums and blogs. Social media can be defined as a group of International Journal on New Computer Architectures and Their Applications (IJNCAA) 1(2): 428-436 The Society of Digital Information and Wireless Communications, 2011 (ISSN: 2220-9085)
