Proceedings of the XIV Brazilian Symposium on Information Systems最新文献_第2页

A Study on Goals Specification for Systems-of-Information Systems: Design Principles and a Conceptual Model 信息系统目标规范研究:设计原则与概念模型

Proceedings of the XIV Brazilian Symposium on Information Systems Pub Date : 2018-06-04 DOI: 10.1145/3229345.3229369

V. V. G. Neto, F. Horita, Everton Cavalcante, A. Rohling, Jamal El Hachem, D. S. Santos, E. Nakagawa

{"title":"A Study on Goals Specification for Systems-of-Information Systems: Design Principles and a Conceptual Model","authors":"V. V. G. Neto, F. Horita, Everton Cavalcante, A. Rohling, Jamal El Hachem, D. S. Santos, E. Nakagawa","doi":"10.1145/3229345.3229369","DOIUrl":"https://doi.org/10.1145/3229345.3229369","url":null,"abstract":"Software-intensive information systems can be aggregated to form Systems-of-Information Systems (SoIS) and provide novel functionalities to achieve high-level goals, also known as missions. Missions represent an important concern in this context since they are related to both capabilities of constituent systems and how they shall interact with each other within a SoIS. Due to such a relevant role, we conducted an exploratory study to evaluate how a state-of-the-art language for mission specification has supported mission (renamed as goal in this study) specification for SoIS. This investigation has been carried out in the context of a space SoIS composed of independent ground information systems, satellites and other systems to provide territory monitoring and environmental data distribution. Results indicate a lack of support for the specificities of SoIS goals, such as the representation of interdependency among activities and dynamicity support. As main contributions, this paper comes up with a set of design principles and a corresponding conceptual model to be followed by languages tailored to support goal specification in SoIS.","PeriodicalId":284178,"journal":{"name":"Proceedings of the XIV Brazilian Symposium on Information Systems","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129978135","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: 17

Cartola FC Data Analysis: A simulation, analysis, and visualization tool based on Cartola FC Fantasy Game 卡托拉FC数据分析:一个模拟，分析和可视化工具，基于卡托拉FC幻想游戏

Proceedings of the XIV Brazilian Symposium on Information Systems Pub Date : 2018-06-04 DOI: 10.1145/3229345.3229366

E. Mota, D. Coimbra, M. Peixoto

引用次数: 3

Automatic Validation of Knowledge-intensive Process Models through Alloy 基于Alloy的知识密集型过程模型自动验证

Proceedings of the XIV Brazilian Symposium on Information Systems Pub Date : 2018-06-04 DOI: 10.1145/3229345.3229405

Tatiana Barboza, F. Santoro, F. Baião

引用次数: 0

Applying an open source software assessment model to select BI tools in public organizations 在公共机构中应用开源软件评估模型选择BI工具

Proceedings of the XIV Brazilian Symposium on Information Systems Pub Date : 2018-06-04 DOI: 10.1145/3229345.3229359

Leonardo M. Lage, J. V. Filho, Clodis Boscarioli

{"title":"Applying an open source software assessment model to select BI tools in public organizations","authors":"Leonardo M. Lage, J. V. Filho, Clodis Boscarioli","doi":"10.1145/3229345.3229359","DOIUrl":"https://doi.org/10.1145/3229345.3229359","url":null,"abstract":"Public organizations face difficulties in manipulating data essential for implementing efficient management, which compromises the quality of the services provided by these institutions. The use of Business Intelligence (BI) tools can contribute to the improvement of the organizational processes of these organizations. However, the high financial cost, in many cases, makes it impossible for public institutions to acquire proprietary BI solutions. An alternative is the use of solutions based on free and/or open source software. To identify, among the available OSS-based BI tools, which is the most appropriate for implementation in public bodies, it is necessary to apply some specific model for evaluation and selection. The literature describes several generic methods for assessing and comparing OSS. In this work, we select a suitable method and derive a model for the comparison and selection of OSS-based BI tools able to meet the demands of public organizations. In addition, through a case study, we demonstrate how this model can be used in the selection of a tool that can contribute to the improvement of information management in an organizational environment.","PeriodicalId":284178,"journal":{"name":"Proceedings of the XIV Brazilian Symposium on Information Systems","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132674697","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: 1

Inventory Routing Problem with Time Windows: A systematic review of the literature 有时间窗的库存路径问题:文献的系统回顾

Proceedings of the XIV Brazilian Symposium on Information Systems Pub Date : 2018-06-04 DOI: 10.1145/3229345.3229376

Pedro Yuri A. L. Alves, K. V. Delgado, V. F. Silva

引用次数: 4

A Method to Support the Identification of Interests in Startup Ecosystems 支持创业生态系统中利益识别的方法

Proceedings of the XIV Brazilian Symposium on Information Systems Pub Date : 2018-06-04 DOI: 10.1145/3229345.3229352

Rafael Escalfoni, Tiago Cruz França, Marcelo A. S. Irineu, A. Vivacqua, Jonice Oliveira

引用次数: 2

Stock Portfolio Prediction by Multi-Target Decision Support 基于多目标决策支持的股票投资组合预测

Proceedings of the XIV Brazilian Symposium on Information Systems Pub Date : 2018-06-04 DOI: 10.1145/3229345.3229382

J. Silva, E. J. Santana, S. M. Mastelini, Sylvio Barbon Junior

{"title":"Stock Portfolio Prediction by Multi-Target Decision Support","authors":"J. Silva, E. J. Santana, S. M. Mastelini, Sylvio Barbon Junior","doi":"10.1145/3229345.3229382","DOIUrl":"https://doi.org/10.1145/3229345.3229382","url":null,"abstract":"Investing in the stock market is a complex process due to its high volatility caused by factors as exchange rates, political events, inflation and the market history. To support investor's decisions, the prediction of future stock price and economic metrics is valuable. With the hypothesis that there is a relation among investment performance indicators, we applied multi-target regression (MTR) methods to estimate 6 different indicators aiming at creating an automated prediction tool for decision support. The experiments were based on 4 datasets, corresponding to 4 different time periods, composed of 63 combinations of weights of stock-picking concepts each, simulated in the US stock market. We compared traditional machine learning approaches with four state-of-the-art MTR solutions: Stacked Single Target, Ensemble of Regressor Chains, Deep Structure for Tracking Asynchronous Regressor Stacking and Multi-output Random Forest (MORF). With the exception of MORF, traditional approaches and the MTR methods were evaluated with Random Forest and Support Vector Machine regressors. By means of extensive experimental evaluation, our results showed that the most recent MTR solutions can achieve suitable predictive performance, improving all the scenarios (12.6% in the best period, considering all target variables). In this sense, MTR is a proper strategy for building stock market decision support system based on prediction models.","PeriodicalId":284178,"journal":{"name":"Proceedings of the XIV Brazilian Symposium on Information Systems","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130214712","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

Transparency Communication Strategies in Human-Data Interaction 人-数据交互中的透明沟通策略

Proceedings of the XIV Brazilian Symposium on Information Systems Pub Date : 2018-06-04 DOI: 10.1145/3229345.3229414

Patrick Barreto, Luciana Salgado, J. V. Filho

引用次数: 2

Comparative study of subspace-based techniques in the task of partially occluded reconstruction of faces 基于子空间的人脸部分遮挡重建的比较研究

Proceedings of the XIV Brazilian Symposium on Information Systems Pub Date : 2018-06-04 DOI: 10.1145/3229345.3229383

J. Targino, S. M. Peres, C. Lima

{"title":"Comparative study of subspace-based techniques in the task of partially occluded reconstruction of faces","authors":"J. Targino, S. M. Peres, C. Lima","doi":"10.1145/3229345.3229383","DOIUrl":"https://doi.org/10.1145/3229345.3229383","url":null,"abstract":"Facial recognition systems in controlled environments have presented satisfactory identification results. However, we can not make the same assertion when the collection environment is uncontrolled. The factors responsible for these low recognition rates are variations in illumination, pose, expression and occlusion, which introduce intraclass variations and degrade recognition performance. Compared with problems of pose, illumination and expression, the problem related to occlusion is relatively little studied in the area. In the literature there are some techniques based on subspace with initiatives to reconstruct the partly occluded face. However, there is no study showing the pros and cons of each variation. The objective of this work is to investigate the different existing techniques based on subspace, and with this to present the pros and cons of each technique. In this paper, the Wavelet transform was used to extract a set of characteristics of face images. According to the results we can see that the Fast Recursive PCA, Recursive and GPCA strategies achieved better performance, in terms of recognition rate, after evaluation with the Extreme Learning Machine classifier.","PeriodicalId":284178,"journal":{"name":"Proceedings of the XIV Brazilian Symposium on Information Systems","volume":"578 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134366092","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: 0

Multi-objective Sequential Route Optimization applied in Large-Scale Road Networks with Traffic Congestion 大规模交通拥堵路网多目标顺序路径优化

Proceedings of the XIV Brazilian Symposium on Information Systems Pub Date : 2018-06-04 DOI: 10.1145/3229345.3229388

Renê D. N. de Morais, Cícero Garrozi

引用次数: 1