A compact static double-array keeping character codes     

Susumu Yata  Masaki OonoAuthor VitaeKazuhiro MoritaAuthor Vitae  Masao FuketaAuthor VitaeToru SumitomoAuthor Vitae  Jun-ichi AoeAuthor Vitae 《Information processing & management》2007

A trie represented by a double-array enables us to search a key fast with a small space. However, the double-array uses extra space to be updated dynamically. This paper presents a compact structure for a static double-array. The new structure keeps character codes instead of indices in order to compress elements of the double-array. In addition, the new structure unifies common suffixes and consists of less elements than the old structure. Experimental results for English keys show that the new structure reduces space usage of the double-array up to 40%.  相似文献   

Promoting creativity in PhD supervision: Tensions and dilemmas     

Denise Whitelock ^{Author Vitae}  Dorothy Faulkner Author VitaeAuthor Vitae 《Thinking Skills and Creativity》2008,3(2):143-153

In this paper we argue that the processes of collaborative creativity are just as important within the sociocultural context of PhD supervisory practice, as they are in other organizational and educational settings. In order to test this claim a series of interviews with supervisors and students were undertaken to uncover the pedagogic processes used to encourage and support creativity within supervision sessions. The findings from this small-scale study suggest that whilst the more formal instruction and monitoring processes that lead to the acquisition of transferrable research skills are both usefully and necessary aspects of doctoral training, the more open-ended and creative developments required at this level of study should be given equal weight. There needs to be space, time and encouragement for the types of interactions identified here (e.g. informal reflection, relationship building with peers and supervisor, playful exploration and risk taking) as well as mandatory skills development.  相似文献   

Effectiveness of using learner‐centered principles on student retention in distance education courses in rural schools     

Wallace H. Hannum  Matthew J. Irvin  Pui‐Wa Lei  Thomas W. Farmer 《Distance Education》2008,29(3):211-229

This article examines the effectiveness of training facilitators in secondary schools to follow APA learner‐centered principles to support learners in distance education. The study was a cluster‐randomized control trial with 36 match pairs of schools and 246 students in the rural USA. The schools were selected at random and assigned at random to treatment condition. Instructors were blind to the treatment condition as were the local facilitators and schools. Data on length of time spent in the course and whether students completed the semester were analyzed. The results indicated that students in the intervention condition completed the first semester at a statistically higher rate than control students where facilitators did not have this training. The number of weeks students remained in the course was likewise statistically different with students in the intervention condition staying in the course more weeks holding instructor constant.  相似文献   

The utilitarian and hedonic outcomes of music information-seeking in everyday life     

Audrey LaplanteAuthor Vitae  J. Stephen DownieAuthor Vitae 《Library & information science research》2011,33(3):202-210

This qualitative study focuses on what contributes to making a music information-seeking experience satisfying in the context of everyday life. Data were collected through in-depth interviews conducted with 15 younger adults (18 to 29 years old). The analysis revealed that satisfaction could depend on both hedonic (i.e., experiencing pleasure) and utilitarian outcomes. It was found that two types of utilitarian outcomes contributed to satisfaction: (1) the acquisition of music, and (2) the acquisition of information about music. Information about music was gathered to (1) enrich the listening experience, (2) increase one's music knowledge, and/or (3) optimize future acquisition. This study contributes to a better understanding of music information-seeking behavior in recreational contexts. It also has implications for music information retrieval systems design: results suggest that these systems should be engaging, include a wealth of extra-musical information, allow users to navigate among music items, and encourage serendipitous encountering of music.  相似文献   

Google Scholar acceptance and use among graduate students: A quantitative study     

Tanya CothranAuthor vitae 《Library & information science research》2011,33(4):293-301

Adding the external variables of satisfaction and loyalty to Fred Davis' technology acceptance model (TAM), this study examined the extent to which graduate students perceived Google Scholar to be a resource that is useful and easy to use. A survey of 1141 graduate students at the University of Minnesota asked questions exploring their perceptions of Google Scholar as part of their research process. Seventy-five percent of survey participants had used Google Scholar at least once before, and a statistical analysis of the responses found that perceived usefulness, loyalty, and, to a lesser extent, perceived ease of use, were positively and significantly related to the graduate students' intended use of the information resource. This research showed that TAM is an applicable model for predicting graduate student use of Google Scholar, which can help academic librarians seeking to understand graduate student acceptance of new information sources. Additionally, this study provides information about how librarians might best promote Google Scholar and other library resources to graduate students.  相似文献   

Evaluation of Korean information infrastructure policy 2000–2010: Focusing on broadband ecosystem change     

Dong-Hee Shin  Sang Hee KweonAuthor vitae 《Government Information Quarterly》2011,28(3):374-387

South Korea has been very active in broadband development for the last decade, which has made major strides in its development. This study evaluates the evolution of Korea's broadband development from the year 2000 to the present day. Historic and archival data related to Korean broadband projects are reviewed in this paper, drawing on broadband ecosystem as a framework for assessment. The purpose of this study is to provide insight into challenges and create a prospectus by offering a socio-technical analysis of broadband development. This will involve the in-depth investigation of the social dynamics, political discourse, and technological choices inherent in the design and development of the next generation of networks. Despite active investment and proactive drive, uncertainty still remains surrounding the evolution of broadband and what impact it may have on the new broadband milieu in Korea. This study will offer an effective adoption/diffusion strategy as well as a viable information policy model for more advanced infrastructure in other countries.  相似文献   

New regulatory institution for the convergence of broadcasting and telecommunications: A Korean case     

Daeho Kim Author Vitae 《Government Information Quarterly》2011,28(2):155-163

This paper addresses a new case for the convergent regulatory institution for broadcasting and telecommunications in Korea. This paper emphasizes that, when considering a convergent regulatory body, Korea's main principle to establish is a reflection of the paradigm shift of convergence and IT industry. The proposal of the Korean Communications Commission addresses that as a prior factor. This paper deals with three characteristics in establishing the KCC: accommodating policy making and regulation together within a single institution; choosing a commission model as a new organizational type, which inherits a broadcasting legacy to ensure diversity and independence; combining content and network sector together. This paper attempts to show that the Korean model gives a power to the convergent regulatory institution to make the country remain one of the leading countries in information and communication sector as well as implement convergence of broadcasting and telecommunications successfully.  相似文献   

Participatory democracy and the value of online community networks: An exploration of online and offline communities engaged in civil society and political activity     

Rowena Cullen^{Author Vitae}  Laura SommerAuthor Vitae 《Government Information Quarterly》2011,28(2):148-154

This article addresses the widely debated question of whether online communication through the Internet will fulfill its potential to enhance democratic processes in society. The paper reports the findings of a survey of groups engaged in some form of civic activity, in both online and offline groups. Comparisons are drawn between the responses of those engaged in both types of group to determine whether the motivations, behavior, and satisfaction of participants differ because of the medium of communication. Contrary to some expectations in the literature, the findings suggest that participants in online groups are marginally less satisfied with their participation in their group. The findings have implications for politicians, policy makers, and groups engaged in civil society when using online channels of communication for democratic discourse.  相似文献   

Conception, development and implementation of an e-Government maturity model in public agencies   总被引：1，自引：0，他引：1  

Gonzalo Valdés^{Author Vitae}  Mauricio SolarAuthor VitaeHernán AstudilloAuthor Vitae  Marcelo IribarrenAuthor VitaeGastón ConchaAuthor Vitae  Marcello ViscontiAuthor Vitae 《Government Information Quarterly》2011,28(2):176-187

Governments worldwide are encouraging public agencies to join e-Government initiatives in order to provide better services to their citizens and businesses; hence, methods of evaluating the readiness of individual public agencies to execute specific e-Government programs and directives are a key ingredient in the successful expansion of e-Government. To satisfy this need, a model called the eGovernment Maturity Model (eGov-MM) was developed, integrating the assessment of technological, organizational, operational, and human capital capabilities, under a multi-dimensional, holistic, and evolutionary approach. The model is strongly supported by international best practices, and provides tuning mechanisms to enable its alignment with nation-wide directives on e-Government. This article describes how the model was conceived, designed, developed, field tested by expert public officials from several government agencies, and finally applied to a selection of 30 public agencies in Chile, generating the first formal measurements, assessments, and rankings of their readiness for e-Government. The implementation of the model also provided several recommendations to policymakers at the national and agency levels.  相似文献   

e-Government adoption model based on theory of planned behavior: Empirical validation   总被引：1，自引：0，他引：1  

Sevgi Ozkan  Irfan Emrah KanatAuthor vitae 《Government Information Quarterly》2011,28(4):503-513

The e-Government phenomenon has become more important with the ever increasing number of implementations worldwide. A model explaining the e-Government adoption and the related measurement instrument – a survey – had been developed and validated in this study. In a post Technology Acceptance Model (TAM) approach, theory of planned behavior (TPB) was extended to fit the requirements of e-Government context. The adoption of student loans service of the higher education student loans and accommodation association of Turkey (KYK) was investigated to obtain data for empirical validation. The instrument was administered to over four-hundred students and partial least squares path modeling was employed to analyze the data. The results indicate that the model was an improvement over TAM in terms of predictive power. The constructs trust, perceived behavioral control and attitudes successfully explained the intention to use an e-Government service. The findings presented in this study provide useful insights for researchers and policy makers when dealing with e-Government services.  相似文献