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The colors of characters suitable to presentation slides were proposed. Here, five color combinations were proposed. A combination has three colors of base, main, and accent colors. The base color is for the background. The color white is used as the base color. The main color is for the part becoming the frame. The accent one is for the place where we want to emphasize. This paper proposes two methods...
Understanding changes in the mood and mentalhealth of large populations is a challenge, with the need for largenumbers of samples to uncover any regular patterns within thedata. The use of data generated by online activities of healthyindividuals offers the opportunity to perform such observationson the large scales and for the long periods that are required. Various studies have previously examined...
This paper studies the relationship between China stock market performances and investors' attention, where the attention is measured by the page view of China's largest stock forum. The results show that trading volume, intraday volatility and liquidity have positive effects on investors' attention, while the effects of stock return to the attention is not significant. Finally, we demonstrate that...
Efficient retrieval of traffic archival data is a must-have technique to detect network attacks, such as APT(advanced persistent threat) attack. In order to take insight from Internet traffic, the bitmap index is increasingly used for efficiently querying over large datasets. However, a raw bitmap index leads to high space consumption and overhead on loading indexes. Various bitmap index compression...
Focused crawling is a mean for acquiring raw big data materials from the web. This paper proposes a focused crawler for discovering Arabic poetry resources based on the Apache Nutch crawler. The crawler identifies poetry relevant resources using an SVM classifier and a list of Arabic poetry related keywords. The crawler is able to collect relevant webpages with a precision of 94%.
The development of the 6th channel of China Central Television (cctv-6, movie channel) brings a new way to view a movie and a better experience to user. Compared to the theaters, cctv-6 has the advantages of viewing conveniently and it spends little. But from in terms of visual impact and sound, watching movies on TV is not as good as go to the cinema, and the time also to have certain hysteresis...
Writing high quality papers for international publications is crucial for generate a real impact on the scientific community. In this paper some relevant recommendations are given in order to generate quality publications. These tips have been generated and compiled based on the experience and material released on the Internet by a large number of authors. With this, it is hoped to contribute with...
In 2013, the ninth criteria of Internet Gaming Disorder (IGD) were firstly laid out in the Diagnostic and Statistical Manual for Mental Disorders (DSM-V). It performed that playing online game became the most activity of Internet addiction (IA). In order to discriminate the high-risk IA with IGD (HIGD) and low-risk IA with nonIGD (LIGD), the abdominal breathing (AB) and the emotional Self-Assessment...
The present work describes the Moodle Analytics Dashboard (MAD), a tool developed to allow the visualization of students and professors logs in Moodle disciplines. MAD provides an easy way to obtain graphical visualization of several aspects related to students and professors accesses in virtual learning disciplines, thus helping professors to better follow teaching and learning process, as well as...
When using Information Retrieval (IR) systems, users often present search queries made of ad-hoc keywords. It is then up to the information retrieval systems (IRS) to obtain a precise representation of the user's information need and the context (preferences) of the information. To address this problem, we investigate optimization of IRS to individual information needs in order of relevance. The goal...
In the context of swift development of P2P e-commerce, it is critical to defending both customers and sellers from being victimized by probable deception stemming from uncertainties, vagueness and ambiguities that characterize the interactions amongst unfamiliar dealers. Accordingly, credit standing concerning each business partaker plays a decisive part in preventing fraud in P2P transactions and...
Applying internet data to investor attention research is a trend now. This paper propose a new method to measure positive and negative investor attention paid to a certain industry by using of search data from search engine. We select keywords from a corpus of energy industry by text-analysis technique including TextRank algorithm instead of taking company names or stock tickers as keywords in previous...
In this paper, we proposes a method to analyze and evaluate the quality of experience (QoE) in mobile terminals using “big data”. The feature parameters of key quality indicator (KQI) are obtained from operators and quantized through the use of a scoring system. Then the scores of customer experience indicator (CEI) and QoE are calculated based on our proposed analytical model. In combination with...
Information and Communication Technologies (ICT) have a remarkable potential to improve the agricultural practices and innovation systems and to achieve significant benefits. To achieve the complete benefits of ICT, it is better to understand the constraints in ICT adoption for agricultural development, identify feasible options for reducing the constraints and contribute to develop effective policies...
The Web has been around and maturing for 25 years. The popular websites of today have undergone vast changes during this period, with a few being there almost since the beginning and many new ones becoming popular over the years. This makes it worthwhile to take a look at how these sites have evolved and what they might tell us about the future of the Web. We therefore embarked on a longitudinal study...
In this paper, a thinking and research method of inflation expectations measurements based on web search data is proposed. First, a conceptual framework between search data and inflation expectations is built in order to clarify their mechanism of association. Then, a index of web inflation expectations is built by using principal component analysis and its effectiveness is verified. The results show...
Massive Open Online Courses (MOOCs) are growing substantially in numbers, and also in interest from the educational community. MOOCs are online courses aimed at large-scale interactive participation and open access via the Web that made them possible for anyone with an internet connection to enroll in free, university level courses. In this paper, we propose a novel method to discover various types...
Exploratory search is cumbersome with today's search engines, where a user aims to better understand complex concepts. Query expansions techniques have been widely used in exploratory search. However, query expansions often recommend queries that differ from the user's search intentions due to different contexts. Yet, many of users' needs could be addressed by asking people via popular Community Question...
The B to C E-commerce Enterprise (B2CEE) has produced extensive and profound influence on the economic structure. To study the structural factors of stock price of B2CEE which will influence the market pricing of them, we have introduced fractal method and made an empirical analysis on the typical case of listed B2CEE. Furthermore, to reveal the true value of B2CEE, it must separate the trend factor...
This paper presents an optimal coordinated operation framework for minimizing the overall electricity cost of distributed internet data center (IDC) microgrids, which consists of cost of purchasing power from main grid, the operation cost of onsite generations, and the cost of carbon emissions. With forecasted day-ahead and real-time locational marginal prices (LMPs), the proposed model could help...
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