检索结果-内蒙古大学图书馆

35th European Conference on Information Retrieval, ECIR 2013

作者： Tsai, Ming-Feng Wang, Chuan-Ju Department of Computer Science Program in Digital Content and Technologies National Chengchi University Taipei 116 Taiwan Department of Computer Science Taipei Municipal University of Education Taipei 100 Taiwan

ISBN: (纸本)9783642369728

This paper attempts to use soft information in finance to rank the risk levels of a set of companies. Specifically, we deal with a ranking problem with a collection of financial reports, in which each report is associated with a company. By using text information in the reports, which is so-called the soft information, we apply learning-to-rank techniques to rank a set of companies to keep them in line with their relative risk levels. In our experiments, a collection of financial reports, which are annually published by publicly-traded companies, is employed to evaluate our ranking approach;moreover, a regression-based approach is also carried out for comparison. The experimental results show that our ranking approach not only significantly outperforms the regression-based one, but identifies some interesting relations between financial terms. © 2013 Springer-Verlag.

关键词： Information use

来源：评论

学校读者我要写书评

暂无评论

Using emotional context from article for contextual music recommendation 13

Using emotional context from article for contextual music re...

引用

21st ACM International Conference on Multimedia, MM 2013

作者： Chen, Chih-Ming Tsai, Ming-Feng Liu, Jen-Yu Yang, Yi-Hsuan Department of Computer Science Program in Digital Content and Technology National Chengchi University Taipei 11605 Taiwan Research Center for Information Technology Innovation Academia Sinica Taipei 11564 Taiwan

ISBN: (纸本)9781450324045

This paper proposes a context-aware approach that recommends music to a user based on the user's emotional state predicted from the article the user writes. We analyze the association between user-generated text and music by using a real-world dataset with tripartite information collected from the social blogging website LiveJournal. The audio information represents various perceptual dimensions of music listening, including danceability, loudness, mode, and tempo;the emotional text information consists of bag-of-words and three dimensional affective states within an article: valence, arousal and dominance. To combine these factors for music recommendation, a factorization machine- based approach is taken. Our evaluation shows that the emotional context information mined from user-generated articles does improve the quality of recommendation, com- paring to either the collaborative filtering approach or the content-based approach. Copyright © 2013 ACM.

关键词： Collaborative filtering

来源：评论

学校读者我要写书评

暂无评论

Music Recommendation Based on Multiple Contextual Similarity Information

Music Recommendation Based on Multiple Contextual Similarity...

引用

IEEE WIC ACM International Conference on Web Intelligence (WI)

作者： Chih-Ming Chen Ming-Feng Tsai Jen-Yu Liu Yi-Hsuan Yang Department of Computer Science & Program in Digital Content and Technology National Chengchi University Taipei Taiwan Research Center for Information Technology Innovation Academia Sinica Taipei Taiwan

This paper proposes a music recommendation approach based on various similarity information via Factorization Machines (FM). We introduce the idea of similarity, which has been widely studied in the filed of information retrieval, and incorporate multiple feature similarities into the FM framework, including content-based and context-based similarities. The similarity information not only captures the similar patterns from the referred objects, but enhances the convergence speed and accuracy of FM. In addition, in order to avoid the noise within large similarity of features, we also adopt the grouping FM as an extended method to model the problem. In our experiments, a music-recommendation dataset is used to assess the performance of the proposed approach. The datasets is collected from an online blogging Web site, which includes user listening history, user profiles, social information, and music information. Our experimental results show that, with various types of feature similarities the performance of music recommendation can be enhanced significantly. Furthermore, via the grouping technique, the performance can be improved significantly in terms of Mean Average Precision, compared to the traditional collaborative filtering approach.

关键词： Feature extraction Frequency modulation Vectors Recommender systems History Music Data mining

来源：评论

学校读者我要写书评

暂无评论

A multi-optional adjustable IHS-BT approach for high resolution optical and SAR image fusion

Chung Cheng Ling Hsueh Pao/Journal of Chung Cheng Institute ...

引用

Chung Cheng Ling Hsueh Pao/Journal of Chung Cheng Institute of technology 2013年第1期42卷 119-128页

作者： Su, Yu Lee, Ching-Hai Tu, Te-Ming Department of Computer Science and Information Engineering Yuanpei University Taiwan Department of Information Communication Mingdao University Taiwan Department of Digital Content and Technology Ta Hwa University of Science and Technology Taiwan

It is well known that the photo-interpretation of radar images is substantially different from the optical images due to SAR's scattering mechanism. Merging optical images with SAR imagery can provide complementary information in order to improve understanding the structure of the features within the SAR. To achieve the goal, this research has developed an extension model of the IHS-BT approach (eIHS-BT) with multi-optional adjustments for image fusion. The model provides four fusion methods of Pan-MS, SAR-MS, SAR-Pan-MS and SAR-Pan by setting two parameters. Apart from that, the SAR-Pan-MS or SAR-Pan image fusion method can show better performance in assisting SAR image understanding because of reasonable contents of spatial details and texture features by tuning one parameter for adjusting the proportion of Pan to SAR image information. In the mean time, an effectively red-green viewer (RGV) to increase the quality of the radar images is introduced to assist object recognition by reducing the bright star effect.

关键词： Synthetic aperture radar

来源：评论

学校读者我要写书评

暂无评论

Natural interaction expressivity modeling and analysis 13

Natural interaction expressivity modeling and analysis

引用

6th ACM International Conference on PErvasive Technologies Related to Assistive Environments, PETRA 2013

作者： Caridakis, George Moutselos, Konstantinos Maglogiannis, Ilias Intelligent Systems Content and Interaction Lab. National Technical University of Athens Greece Dept. of Computer Science and Biomedical Informatics University of Central Greece Greece Department of Digital Systems University of Piraeus Greece Dept. of Cultural Technology University of the Aegean Greece

ISBN: (纸本)9781450319737

Behavior, including non verbal, expressiveness is an integral part of the communication process since it can provide information on the emotional state and the user's performance when the aim of the interaction is measurable. Long term temporal measurements can also assist in monitoring the user for either emergencies or long term mood instabilities. Current article presents research work on the computational formalization and analysis of full body 3D expressivity in Natural (bodily) Interaction within the framework of Pervasive Assistance. Expressivity dimensions are selected as the most complete approach to body expressivity modeling, since they cover the entire spectrum of expressivity parameters related to emotion and affect. In this study five expressivity parameters are computationally formalized, using different approaches based on silhouette, limbs position and joints rotation, for each expressivity feature. These approaches are then evaluated in terms of their effectiveness in modeling the expressivity aspect in question. The modeling effectiveness of each approach is assessed using Linear Discriminant Analysis (LDA) and its coefficients on the automatically extracted parameters, defined in the computational formalization, against an experimental dataset consisting of extreme expressions (positive and negative) of the investigated expressivity aspects. The The experimental results confirm that the proposed Fading Silhouette Motion Volumes (FMSV) approach, is the most effective in modeling body expressivity. © 2013 ACM.

关键词： Discriminant analysis

来源：评论

学校读者我要写书评

暂无评论

Algorithmic bipanpath connectivity of the hypercube

引用

computer Systems science and Engineering 2013年第3期28卷 139-145页

作者： Fang, Jywe-Fei Huang, Chien-Hung Department of Digital Content and Technology National Taichung University of Education Taichung 403 Taiwan Department of Computer Science and Information Engineering National Formosa University Yun-Lin Taiwan

A bipartite graph is bipanconnected if an arbitrary pair of vertices x, y are joined by the bipanconnected paths that include a path of each length s satisfying N - 1 ≥ s ≥dist(x, y) and i - dist(x, y) is even, where N is the order of the graph, and dist(x, y) denotes the shortest distance between x and y. Li et al. [Information Processing Letters 87 (2003) 107-110] have shown that the hypercube is bipanconnected. However, a definite algorithm to generate such paths is still absent. In this paper, we present algorithms to generate the bipanconnected paths joining an arbitrary pair of vertices in the hypercube. © 2013 CRL Publishing Ltd.

关键词： Interconnection networks (circuit switching)

来源：评论

学校读者我要写书评

暂无评论

Research on the usability of digital magazine applications

Research on the usability of digital magazine applications

引用

8th International Conference on Information science and digital content technology, ICIDT 2012

作者： Mai, Pu-Ming Kuo, Pei-Jeng Master's Program of Digital Content and Technologies National Cheng-Chi University Taipei Taiwan Department of Computer Science National Cheng-Chi University Taipei Taiwan

ISBN: (纸本)9788988678695

In this paper, we conducted an user study on digital magazine applications based on three different interaction styles. Though different reading interfaces and applications of mobile device to focused on the reading behavior by stable user groups. In doing so, we describe how the methods have worked, describe the expected results for these methods to support digital magazine application user research, and make the study for interdisciplinary collaboration through implementing these practices. © 2012 AICIT.

关键词： User interfaces

来源：评论

学校读者我要写书评

暂无评论

Post-Modern Portfolio Theory for Information Retrieval

引用

Procedia computer science 2012年 13卷 80-85页

作者： Ming-Feng Tsai Chuan-Ju Wang Department of Computer Science National Chengchi University Taipei 116 Taiwan Program in Digital Content & Technologies National Chengchi University Taipei 116 Taiwan Department of Computer Science Taipei Municipal University of Education Taipei 100 Taiwan

Information Retrieval (IR) aims to discover relevant information according to a user's information need. The classic Probability Ranking Principle (PRP) forms the theoretical basis for probabilistic IR models. This ranking principle, however, neglects the uncertainty introduced through the estimations from retrieval models. Inspired by the Post-Modern Portfolio Theory (PMPT), this paper proposes a mean-semivariance framework to handle the uncertainty. The proposed framework not only deals with the uncertainty but has the ability to distinguish bad surprises (downside uncertainty) and good surprises (upside uncertainty) when optimizing a ranking list. The experimental results shows that the proposed method improves the IR performance over the PRP baseline in terms of most of IR evaluation metrics; moreover, the results suggest that the mean-semivariance framework can further boost the top-position ranking quality.

关键词： Retrieval models Optimization Semivariance

来源：评论

学校读者我要写书评

暂无评论

A computer system aiming to stimulate creativity for narrative 11

A computer system aiming to stimulate creativity for narrati...

引用

8th ACM Conference on Creativity and Cognition, C and C 2011

作者： Chang, Yun-Tai Chen, Sheng-Chih Li, Tsai-Yen Master's Program in Digital Content and Technologies National Chengchi University Taipei11605 Taiwan Computer Science Department National Chengchi University Taipei11605 Taiwan

ISBN: (纸本)9781450308205

The goal of our research is to develop a computer system based on the concept of pictures-And-Attributed-notes (PAN) aiming to stimulate creativity and imagination when users create a story. We have conducted an experiment and used the Conceptual, Operational, Perceptional and Evaluation (COPE) coding system to analyze the process of creating a story with the aid of computer system. The preliminary results revealed that the computer system based on PAN can stimulate user's creativity during the process of story creation. Copyright 2011 ACM.

关键词： computer programming

来源：评论

学校读者我要写书评

暂无评论

Assessment of Implementing a digital Game-based Learning System over Facebook

Assessment of Implementing a Digital Game-based Learning Sys...

引用

International Conference on Advanced Learning Technologies (ICALT)

作者： Hong-Ren Chen Jan-Pan Hwang Ting-Ting Wu Yueh-Min Huang Hui-Ting Hsueh Department of Digital Content and Technology National Taichung University of Education Taiwan Department of Engineering Science National Cheng Kung University Taiwan Center Computer & Information Services Transworld University Taiwan

In this study, we implemented a digital game-based learning (DGBL) system over Face book platform. For better understanding the impact of DGBL applied to social networking, the technology acceptance model (TAM) was employed for the evaluation. Results of this study showed that the DGBL incorporated into a social network website is a feasible and sound model for teaching. This study investigated the potential important design issues of the application over a social network website. It is believed that this study could bring teachers a better understanding how those characteristics of social networks can attribute to the success of users' learning.

关键词： Facebook Games Servers Education Correlation Silicon

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：