检索结果-内蒙古大学图书馆

Proceedings of the 21st International Conference on Information Integration and Web-based Applications & Services

作者： Iman Paryudi Ahmad Ashari A. Min Tjoa Department of Informatics Pancasila University Jakarta Indonesia Department of Computer Science and Electronics Gadjah Mada University Yogyakarta Indonesia Institute of Software Technology and Interactive Systems Vienna University of Technology Vienna Austria

ISBN: (纸本)9781450371797

Collaborative filtering in a recommender system has a weakness called cold start problem. One way to resolve this problem is by using personality traits that can be automatically predicted from the status that the users write in social media like Facebook and Twitter. The problem with this method is that a user of such system must have at least one account in at least one social media and must write at least one status with certain length. We propose to use the combination of personality traits and demographic data to overcome this problem. Previous studies reveal that personality traits are influenced by age and gender. By using these findings, we will build models to predict personality traits from such demographic data. The modeling will be conducted by means of classification and association rule methods. Novel domains will be used in the proposed system, namely sports and hobbies.

关键词： Five Factor Model k-Nearest Neighbor Classification Method Naïve Bayes Recommender System for Hobbies Association Rule Demographic Data Decision Tree Recommender System for Sports Personality Traits Big Five

来源：评论

学校读者我要写书评

暂无评论

Finite Volume Methods for Transient Modeling of Gas Pipelines

Finite Volume Methods for Transient Modeling of Gas Pipeline...

引用

IEEE International Energy Conference (ENERGYCON)

作者： Malley, Conor O. Kourounis, Drosos Hug, Gabriela Schenk, Olaf Vienna University of Technology Institute of Software Technology and Interactive Systems Vienna Austria

ISBN: (纸本)9781538636695

Given the increasing importance of multi-energy carrier system modeling, this paper focuses on modeling the dynamics that occur in natural gas transmission lines. In high-pressure pipelines, these dynamics are governed by a set of hyperbolic partial differential equations. Dissipative finite volume discretization schemes are proposed that honor the discrete maximum principle. The convergence of the proposed discretization schemes is investigated and compared with existing methods suggested in the literature for natural gas transmission such as the implicit cell-centered method. High order time discretization methods are also tested and their suitability with respect to the maximum principle is discussed.

关键词： transient gas flow finite volume multi-energy carrier systems

来源：评论

学校读者我要写书评

暂无评论

Expert sourcing to support the identification of model elements in system descriptions 10th

Expert sourcing to support the identification of model eleme...

引用

10th International Conference on software Quality Days, SWQD 2018

作者： Sabou, Marta Winkler, Dietmar Petrovic, Sanja Institute of Software Technology and Interactive Systems Vienna University of Technology Vienna Austria

ISBN: (纸本)9783319714394

Context. Expert sourcing is a novel approach to support quality assurance: it relies on methods and tooling from crowdsourcing research to split model quality assurance tasks and parallelize task execution across several expert users. Typical quality assurance tasks focus on checking an inspection object, e.g., a model, towards a reference document, e.g., a requirements specification, that is considered to be correct. For example, given a text-based system description and a corresponding model such as an Extended Entity Relationship (EER) diagram, experts are guided towards inspecting the model based on so-called expected model elements (EMEs). EMEs are entities, attributes and relations that appear in text and are reflected by the corresponding model. In common inspection tasks, EMEs are not explicitly expressed but implicitly available via textual descriptions. Thus, a main improvement is to make EMEs explicit by using crowdsourcing mechanisms to drive model quality assurance among experts. Objective and Method. In this paper, we investigate the effectiveness of identifying the EMEs through expert sourcing. To that end, we perform a feasibility study in which we compare EMEs identified through expert sourcing with EMEs provided by a task owner who has a deep knowledge of the entire system specification text. Conclusions. Results of the data analysis show that the effectiveness of the crowdsourcing-style EME acquisition is influenced by the complexity of these EMEs: entity EMEs can be harvested with high recall and precision, but the lexical and semantic variations of attribute EMEs hamper their automatic aggregation and reaching consensus (these EMEs are harvested with high precisions but limited recall). Based on these lessons learned we propose a new task design for expert sourcing EMEs. © Springer International Publishing AG 2018.

关键词： Quality assurance

来源：评论

学校读者我要写书评

暂无评论

Execution-based model profiling 1

引用

6th IFIP WG 2.6 International Symposium on Data-DrivenProcess Discovery and Analysis, SIMPDA 2016

作者： Mazak, Alexandra Wimmer, Manuel Patsuk-Bösch, Polina Institute of Software Technology and Interactive Systems TU Wien Favoritenstrasse 9-11 Vienna1040 Austria

ISBN: (数字)9783319741611

ISBN: (纸本)9783319741604

In model-driven engineering (MDE), models are mostly used in prescriptive ways for system engineering. While prescriptive models are indeed an important ingredient to realize a system, for later phases in the systems’ lifecycles additional model types are beneficial to use. Unfortunately, current MDE approaches mostly neglect the information upstream in terms of descriptive models from operations to (re)design phases. To tackle this limitation, we propose execution-based model profiling as a continuous process to improve prescriptive models at design-time through runtime information. This approach incorporates knowledge in terms of model profiles from execution logs of the running system. To accomplish this, we combine techniques of process mining with runtime models of MDE. In the course of a case study, we make use of a traffic light system example to demonstrate the feasibility and benefits of the introduced execution-based model profiling approach. © IFIP International Federation for Information Processing 2018 Published by Springer International Publishing AG 2018. All Rights Reserved.

关键词： Life cycle

来源：评论

学校读者我要写书评

暂无评论

Finding the operating winding induced excess voltage during the three-phase shortening of the synchronous generator

UPB Scientific Bulletin, Series C: Electrical Engineering an...

引用

UPB Scientific Bulletin, Series C: Electrical Engineering and Computer Science 2019年第1期81卷 137-146页

作者： Spunei, Elisabeta Piroi, Ion Piroi, Florina Dept. of Electrical Engineering and Informatics "Eftimie Murgu" University of Reşiţa Romania Institute of Software Technology and Interactive Systems Vienna University of Technology Vienna Austria

This work presents two methods to find the induced excess voltage in a synchronous generator operating winding during a sudden three-phase shortening of the fixed coil winding. The accidental occurrence of this working state leads to high value flask currents which, due to heat density and dynamic loading, affect the fixed coil windings. These currents induce excess voltages that negatively influence the measuring equipment. We establish in this work equations to determine this excess voltage when the synchronous generator's parameters are known. The equations were validated by shortening tests on the synchronous generator. © 2019 Politechnica University of Bucharest. All rights reserved.

关键词： software testing

来源：评论

学校读者我要写书评

暂无评论

"Computer science for all": Concepts to engage teenagers and non-CS students in technology

arXiv

引用

arXiv 2019年

作者： Spieler, Bernadette Grandl, Maria Ebner, Martin Slany, Wolfgang Graz University of Technology Institute of Software Technology Graz Austria Graz University of Technology Institute of Interactive Systems and Data Science Graz Austria Graz University of Technology Department Educational Technology Graz Austria

Knowledge in Computer Science (CS) is essential, and companies have increased their demands for CS professionals. Despite this, many jobs remain unfilled. Furthermore, employees with computational thinking (CT) skills are required, even if they are not actual technicians. Moreover, the gender disparity in technology related fields is a serious problem. Even if companies want to hire women in technology, the number of women who enter these fields is remarkably low. In high schools, most teenagers acquire only low-level skills in CS. Thus, they may never understand the fundamental concepts of CS, have unrealistic expectations or preconceptions, and are influenced by stereotype-based expectations. Consequently, many teenagers exclude computing as a career path. In this research study, we present two promising concepts to overcome these challenges. First, we consider alternative paths to enter the field of CS. In 2018, a voluntary lecture "Design your own app" at the University of Graz for students of all degree programs was introduced. In total, 202 students participated. We applied a Game Development-Based Learning (GDBL) approach with the visual coding tool Pocket Code, a mobile app developed at Graz University of technology. The students were supposed to create simple games directly on smartphones. The course received positive evaluations and led to our second concept;In January 2019, we started to design a MOOC (Massive Open Online Course) with the title "Get FIT in Computer Science". The MOOC will be launched in August 2019 on the platform *** and will provide a general introduction to the field of CS. For exercises and the final submission, the students need to apply game design strategies by using Pocket Code. The MOOC has several target groups. First, this course can be used to encourage young women who have little to no previous knowledge in CS. Second, it should help all teenagers to get a more realistic picture of CS to its basic concepts. Third, teache

关键词： Students

来源：评论

学校读者我要写书评

暂无评论

Hailing a taxi on the web of needs 14

Hailing a taxi on the web of needs

引用

Posters and Demos Track of the 14th International Conference on Semantic systems, SEMPDS 2018

作者： Kleedorfer, Florian Suda, Fabian Stolze, Max Huemer, Christian Research Studio Smart Agent Technologies Thurngasse 8/16 Vienna1090 Austria Institute for Software Technology and Interactive Systems Vienna University of Technology Favoritenstraße 9-11 Vienna1040 Austria

Matchmaking and cooperation are interactions widely available within internet-based platforms. However, to start using such functionality, one must first become a member of the platform. In an effort to push matchmaking and cooperation into the protocol stack of the Web, we demonstrate how an existing taxi service is integrated with a decentralized Web based infrastructure, the Web of Needs (WoN), using a chatbot that can be programmed declaratively to enter into certain types of agreements with users. The bot mediates between an existing Web service and users of the RDF-based WoN network. © 2018 CEUR-WS. All Rights Reserved.

关键词： Web services

来源：评论

学校读者我要写书评

暂无评论

Truck circuits diagnosis for railway lines equipped with an automatic block signalling system

Truck circuits diagnosis for railway lines equipped with an ...

引用

International Conference on Applied Sciences 2017, ICAS 2017

作者： Spunei, E. Piroi, I. Muscai, C. Rǎduca, E. Piroi, F. Eftimie Murgu University of Resita Department of Electrical Engineering and Informatics Traian Vuia str. no. 1-4 Resita320085 Romania Vienna University of Technology Institute of Software Technology and Interactive Systems Viena Austria

This work presents a diagnosis method for detecting track circuits failures on a railway traffic line equipped with an Automatic Block Signalling installation. The diagnosis method uses the installation's electrical schemas, based on which a series of diagnosis charts have been created. Further, the diagnosis charts were used to develop a software package, CDCBla, which substantially contributes to reducing the diagnosis time and human error during failure remedies. The proposed method can also be used as a training package for the maintenance staff. Since the diagnosis method here does not need signal or measurement inputs, using it does not necessitate additional IT knowledge and can be deployed on a mobile computing device (tablet, smart phone). © Published under licence by IOP Publishing Ltd.

关键词： Timing circuits

来源：评论

学校读者我要写书评

暂无评论

Diagnosis diagrams for passing signals on an automatic block signaling railway section

Diagnosis diagrams for passing signals on an automatic block...

引用

International Conference on Applied Sciences 2017, ICAS 2017

作者： Spunei, E. Piroi, I. Chioncel, C.P. Piroi, F. Eftimie Murgu University of Resita Department of Electrical Engineering and Informatics Traian Vuia str. no. 1-4 Resita320085 Romania Vienna University of Technology Institute of Software Technology and Interactive Systems Viena Austria

This work presents a diagnosis method for railway traffic security installations. More specifically, the authors present a series of diagnosis charts for passing signals on a railway block equipped with an automatic block signaling installation. These charts are based on the exploitation electric schemes, and are subsequently used to develop a diagnosis software package. The thus developed software package contributes substantially to a reduction of failure detection and remedy for these types of installation faults. The use of the software package eliminates making wrong decisions in the fault detection process, decisions that may result in longer remedy times and, sometimes, to railway traffic events. © Published under licence by IOP Publishing Ltd.

关键词： software packages

来源：评论

学校读者我要写书评

暂无评论

Discovering new monte carlo noise filters with genetic programming 38

Discovering new monte carlo noise filters with genetic progr...

引用

38th Annual Conference on European Association for Computer Graphics, EUROGRAPHICS 2017

作者： Kán, Peter Davletaliyev, Maxim Kaufmann, Hannes Institute of Software Technology and Interactive Systems Vienna University of Technology Vienna Austria

This paper presents a novel method for the discovery of new analytical filters suitable for filtering of noise in Monte Carlo rendering. Our method utilizes genetic programming to evolve the set of analytical filtering expressions with the goal to minimize image error in training scenes. We show that genetic programming is capable of learning new filtering expressions with quality comparable to state of the art noise filters in Monte Carlo rendering. Additionally, the analytical nature of the resulting expressions enables the run-times one order of magnitude faster than compared state of the art methods. Finally, we present a new analytical filter discovered by our method which is suitable for filtering of Monte Carlo noise in diffuse scenes. Eurographics Proceedings © 2017 The Eurographics Association.

关键词： Genetic programming

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：