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Constantinescu Mihaela Voinea Cristina Uszkai Radu Vică Constantin 《Ethics and Information Technology》2021,23(4):803-814
Ethics and Information Technology - During the last decade there has been burgeoning research concerning the ways in which we should think of and apply the concept of responsibility for Artificial... 相似文献
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Kathryn Rhoads Iuliana Radu Keith Weber 《International Journal of Science and Mathematics Education》2011,9(4):999-1022
Nine prospective secondary mathematics teachers were interviewed about their teaching internship experience. The results of
these interviews revealed that 7 of the 9 participants professed to value reform-oriented teaching and conceptual understanding
in mathematics, yet all were paired with cooperating teachers who seemed to value traditional instruction and procedural understanding
in mathematics. We explored the reasons that some of these student interns had positive experiences with their cooperating
teachers and university supervisors while others had negative experiences. We found that the participants valued (a) critical
feedback that was constructive and contained concrete recommendations for improvement, (b) freedom to use their own teaching
methods, and (c) a friendly and supportive relationship with their mentors. The differing teaching philosophies of student
teachers and their cooperating teachers contributed to negative experiences only when student teachers were not allowed freedom
in their teaching methods. 相似文献
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Robin E. Remsburg Karen A. Armacost Charlotte Radu Richard G. Bennett 《Educational gerontology》2013,39(3-4):261-280
The purpose of this study was to determine the impact of a progressive mobility restorative program on nursing home residents' ability to perform selected activities of daily living (ADLs) and the amount of staff assistance needed to help residents complete these ADLs. A one group repeated measures design study was conducted in a 255-bed university affiliated geriatrics center. A certified nursing assistant (CNA) specially trained in restorative mobility techniques worked with residents individually for at least 15 minutes per day, five days per week to achieve their individualized mobility goals. Items on ADL Self-Performance and ADL Support Provided from the Minimum Data Set (MDS) were collected at baseline, three months, and six months. Thirty-eight of 42 residents (90%) were included in the analyses and 31 residents (82%) completed at least 25 days of restorative activities. Some residents improved their ADL self-performance at three and six months (15% and 33%, respectively) and decreased in the amount of ADL support provided at three and six months (26% and 31%, respectively). Total ADL self-performance and support provided did not change significantly over the six-month period. Most residents maintained their baseline ADL self-performance and level of ADL support provided over the six-month study. A progressive mobility restorative program implemented by a certified nursing assistant specially trained in restorative techniques resulted in most residents maintaining their baseline ADL self-performance abilities and the level of assistance provided by staff. Studies are needed to determine if these types of programs can actually improve functional abilities and decrease the level of staff assistance needed to complete ADLs or if they are effective in maintaining or delaying functional loss and staff burden. 相似文献
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In this paper the current national legislations, the quality assurance approaches and the activities of impact analysis of three quality assurance agencies from Romania, Spain and Germany are described from a strategic perspective. The analysis shows that the general methodologies (comprising, for example, self-evaluation reports, peer reviews, on-site visits, assessment reports, follow-up measures) and main subjects of quality assurance in higher education (such as study programmes and institutional structures and processes) are very similar in the sample cases. However, up to now, impact evaluation of quality assurance has not been implemented systematically in the sample agencies (as in many others). This is the more relevant since the European standards of quality assurance in higher education oblige quality assurance agencies to analyse their general findings and observe the effects of their activities. Against that background, it is argued that methodologically sound impact analyses of quality assurance interventions in higher education institutions should be seen as an integral part of the agencies’ own quality assurance because it would make their work more transparent and easier to improve systematically. The paper identifies some professionalisation needs required for impact evaluation competences: staff and peers who are qualified by methodological knowledge but also by ‘soft’ skills such as project and conflict management. 相似文献
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Roxana Radu 《Educational studies》2013,39(2):167-182
Exploring a unique region concerning educational reforms in the past 20?years, the present study empirically investigates the attitudes towards parental involvement in school life in a comparative perspective of south-eastern European (SEE) countries for the 2008/2009 school year. Based on a multiple regression model for nine different countries, the research examines the predictors of satisfaction with school–parent partnerships from the parents’ perspective in the SEE context. The 2009 Cross-National Survey of Parents provided detailed evidence of attitudes and practices in educational setups in the Balkans for a representative sample of parents with one or more children enrolled in primary or secondary education. The findings indicate that the most reliable explanatory variable for the parents’ satisfaction with ways of getting involved in school life is the attribution of school–parent roles, with effects knocking on to all the other factors, including the understanding of the need to participate and the feeling of being a stakeholder in the educational process. 相似文献
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Jae-wook Ahn Peter Brusilovsky Jonathan Grady Daqing He Radu Florian 《Information processing & management》2010,46(4):383-402
The system presented in this article aims to improve information access through the use of semantic annotation utilizing a non-traditional approach. Instead of applying semantic annotations to enhance the internal information access mechanisms, we use them to empower the user of an information access system through an innovative named entity-based user interface – NameSieve. NameSieve was built to support an intelligence analyst during the process of exploratory search, an advanced type of search requiring multiple iterations of retrieval interleaved with browsing and analyzing the retrieved information. The proposed approach was implemented in the NameSieve system so that the system can transparently present a summary of search results in the form of entity “clouds.” Therefore, these clouds allow the analyst to further explore the results in a novel manner, acting together as a faceted browsing interface. We ran a user study (with ten subjects) to examine the effect of NameSieve, and the study results reported in the paper demonstrate that this new way of applying semantic annotation information was actively used and was evaluated positively by the subjects. It enabled the subjects to work more productively and bring back most relevant documents. 相似文献
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Automatic question answering using the web: Beyond the Factoid 总被引：4，自引：0，他引：4
In this paper we describe and evaluate a Question Answering (QA) system that goes beyond answering factoid questions. Our
approach to QA assumes no restrictions on the type of questions that are handled, and no assumption that the answers to be
provided are factoids. We present an unsupervised approach for collecting question and answer pairs from FAQ pages, which
we use to collect a corpus of 1 million question/answer pairs from FAQ pages available on the Web. This corpus is used to
train various statistical models employed by our QA system: a statistical chunker used to transform a natural language-posed
question into a phrase-based query to be submitted for exact match to an off-the-shelf search engine; an answer/question translation
model, used to assess the likelihood that a proposed answer is indeed an answer to the posed question; and an answer language
model, used to assess the likelihood that a proposed answer is a well-formed answer. We evaluate our QA system in a modular
fashion, by comparing the performance of baseline algorithms against our proposed algorithms for various modules in our QA
system. The evaluation shows that our system achieves reasonable performance in terms of answer accuracy for a large variety
of complex, non-factoid questions. 相似文献
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Mechanical and physical properties, such as tensile strength, elongation at break, modulus of elasticity, Shore D hardness,
melt flow rate (MFR), and electrical and thermal conductivities of composites with high density polyethylene matrix reinforced
with Al powders were investigated experimentally. Measurements of the mechanical and physical properties were performed up
to a reinforcing component concentration of 30% volume Al powder and compared with mathematical models from the literature.
The obtained results have shown that experimental data were in good agreement with theoretical data. The ultimate tensile
strength (UTS) and elongation at break decreased with increasing Al powder content, which was attributed to the introduction
of discontinuities in the polymer structure, and modulus of elasticity increased with increasing Al content. The composite
preparation conditions allowed the formation of a random distribution of metallic particles in the polymer matrix volume for
system high density polyethylene-Al (HDPE-Al). There was a cluster formation of Al particles at higher Al contents in the
polymer matrix. Electrical and thermal conductivity values of HDPE-Al composites were higher than pure HDPE values. 相似文献
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We use the principle of minimum cross entropy (MCE) to build a non-parametric adaptive algorithm for smoothing the log-transformed periodogram, and construct an optimal estimate for the spectral density function of a process. We show that this estimate minimizes the cross-entropy with the log-transformed spectral density function of the process. The method is non-parametric and performs very well for the case of processes having rapidly changing spectra that exhibits a variable order of smoothness. The algorithm is locally based on linearly approximating the information present in the process, and uses this approximation to allow the bandwidth of the spectral window in the smoothed log-periodogram to vary. We extend the algorithm empirically for better application to processes having mixed, narrow-band spectra. Comparisons with other currently used procedures are performed through the means of simulated examples. 相似文献