2013 24th International Workshop on Database and Expert Systems Applications最新文献

Movie Recommendation Based on Graph Traversal Algorithms 基于图遍历算法的电影推荐

2013 24th International Workshop on Database and Expert Systems Applications Pub Date : 2013-08-26 DOI: 10.1109/DEXA.2013.24

L. Demovic, Eduard Fritscher, Jakub Kriz, Ondrej Kuzmik, Ondrej Proksa, Diana Vandlikova, Dusan Zeleník, M. Bieliková

引用次数: 15

Distributed Balancing of Wind Power Forecast Deviations by Intraday Trading and Internal Ex-ante Self-Balancing -- A Modelling Approach 基于日内交易和事前内部自平衡的风电预测偏差分布式平衡——一种建模方法

2013 24th International Workshop on Database and Expert Systems Applications Pub Date : 2013-08-26 DOI: 10.1109/DEXA.2013.47

Richard Scharff, M. Amelin

{"title":"Distributed Balancing of Wind Power Forecast Deviations by Intraday Trading and Internal Ex-ante Self-Balancing -- A Modelling Approach","authors":"Richard Scharff, M. Amelin","doi":"10.1109/DEXA.2013.47","DOIUrl":"https://doi.org/10.1109/DEXA.2013.47","url":null,"abstract":"Wind power generation does on the one hand contribute to a less polluting and more sustainable electric power generation mix. On the other hand, its power output is variable and subject to forecast errors. In real-time, deviations from wind power forecast are handled by the system operator. But expected deviations can already me minimised by power generating companies before real-time. Ways to decrease their expected deviations are intraday trading and/or re-scheduling of own power plants. Both can be regarded as forms of self-balancing before the period of delivery (ex-ante), intraday trading as a form of external ex-ante self-balancing and re-scheduling as internal ex-ante self-balancing. Both can decrease the need for real-time balancing by the system operator. As existing intraday markets are often plagued by low liquidity, it is important to model such not-perfectly liquid intraday markets and simulate different trading and scheduling strategies. This paper presents an approach to model the choice between purely internal self-balancing and internal self-balancing combined with intraday trading on a not fully liquid intraday market. Results from the model runs indicate that intraday trading on a not-perfectly liquid market can be beneficial from the producers as well as from the system's perspective. However, it can result in increased costs if the possibilities to trade on the intraday market are very limited. This is important to consider when investigating the question whether it would be beneficial to distribute a larger share of the balancing responsibility among the power generating companies in order to relieve some pressure from the system operator.","PeriodicalId":428515,"journal":{"name":"2013 24th International Workshop on Database and Expert Systems Applications","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122501979","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Energy-Efficient XML Stream Processing through Element-Skipping Parsing 通过元素跳过解析的高效XML流处理

2013 24th International Workshop on Database and Expert Systems Applications Pub Date : 2013-08-26 DOI: 10.1109/DEXA.2013.34

T. Amagasa, Mana Seino, H. Kitagawa

引用次数: 3

Semantic Registries for Heterogeneous Sensor Networks: Bridging the Semantic Gap for Collaborative Crises Management 异构传感器网络的语义注册:弥合协同危机管理的语义鸿沟

2013 24th International Workshop on Database and Expert Systems Applications Pub Date : 2013-08-26 DOI: 10.1109/DEXA.2013.18

F. Chaves, J. Moßgraber, Manfred Schenk, Ulrich Bügel

{"title":"Semantic Registries for Heterogeneous Sensor Networks: Bridging the Semantic Gap for Collaborative Crises Management","authors":"F. Chaves, J. Moßgraber, Manfred Schenk, Ulrich Bügel","doi":"10.1109/DEXA.2013.18","DOIUrl":"https://doi.org/10.1109/DEXA.2013.18","url":null,"abstract":"The management of heterogeneous sensor networks is a complex task. Moreover, such networks often form an isolated system that needs to be connected to other network systems. Therefore, a system-of-systems approach is required. A sensor registry is the central part of a distributed sensor network. In this paper, we describe how to enhance sensor registries with semantic technologies in order to overcome some of their limitations. The Sensor Web Enablement standards of the Open Geospatial Consortium constitute a consistent and flexible framework in order to assure syntactical interoperability between applications, which make abundant use of data from sensor networks operated by heterogeneous stakeholders. The data model used throughout these standards is the Observation & Measurement model. The conversion into an ontology provides an easier handling of the model. In this paper, we propose the use of such an ontology as the basis of a Semantic Registry. Besides providing the information about the available sensor infrastructure and their semantically rich annotations, it can easily be extended to handle for example information about available services for data analysis or simulations. Furthermore, the resilience of the SRs is a crucial point in the system architecture to prevent it becoming a single point of failure.","PeriodicalId":428515,"journal":{"name":"2013 24th International Workshop on Database and Expert Systems Applications","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128404660","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Main Challenges in Using LOD in Emergency Management 在应急管理中使用LOD的主要挑战

2013 24th International Workshop on Database and Expert Systems Applications Pub Date : 2013-08-26 DOI: 10.1109/DEXA.2013.8

V. Mijovic, V. Janev, S. Vranes

引用次数: 3

A Parallel Comparator of Documents 文件的并行比较器

2013 24th International Workshop on Database and Expert Systems Applications Pub Date : 2013-08-26 DOI: 10.1109/DEXA.2013.13

Sonia Alouane-Ksouri, Minyar Sassi Hidri, Kamel Barkaoui

引用次数: 5

A Crowd-Sourcing Approach for Area-Wide On-Line Building Assessment Towards Earthquake Engineering 面向地震工程的全区域在线建筑评估的众包方法

2013 24th International Workshop on Database and Expert Systems Applications Pub Date : 2013-08-26 DOI: 10.1109/DEXA.2013.5

E. Sonnleitner, J. Küng, David Schafer, H. Wenzel

引用次数: 6

Towards Explaining Latent Factors with Topic Models in Collaborative Recommender Systems 用主题模型解释协同推荐系统中的潜在因素

2013 24th International Workshop on Database and Expert Systems Applications Pub Date : 2013-08-26 DOI: 10.1109/DEXA.2013.26

Marco Rossetti, Fabio Stella, M. Zanker

引用次数: 45

Transition between Different Abstraction Levels in an Abstract State Machine (ASM) Ground Model 抽象状态机(ASM)地面模型中不同抽象层次之间的转换

2013 24th International Workshop on Database and Expert Systems Applications Pub Date : 2013-08-26 DOI: 10.1109/DEXA.2013.29

Jan Kubovy, D. Auer, J. Küng, M. Rady

引用次数: 1

FASOAD: A Framework for Agile Service-Oriented Architectures Development FASOAD:面向服务的敏捷架构开发框架

2013 24th International Workshop on Database and Expert Systems Applications Pub Date : 2013-08-26 DOI: 10.1109/DEXA.2013.28

H. Chehili, L. Seinturier, Mahmoud Boufaïda

引用次数: 8