2020 39th International Conference of the Chilean Computer Science Society (SCCC)最新文献_第8页

Multi-Domain Network Performance Analysis for Vehicle Tracking in Aerial Video 航拍视频中飞行器跟踪的多域网络性能分析

2020 39th International Conference of the Chilean Computer Science Society (SCCC) Pub Date : 2020-11-16 DOI: 10.1109/SCCC51225.2020.9281148

Oliver Sumari H. Felix, C. Juan

引用次数: 0

MOTIONS: Exploring Human-Information Interactions Beyond Clicks 动作:探索点击之外的人类信息交互

2020 39th International Conference of the Chilean Computer Science Society (SCCC) Pub Date : 2020-11-16 DOI: 10.1109/SCCC51225.2020.9281256

Roberto I. González-Ibáñez, Jacqueline Köhler, Esteban Gaete-Flores, Fernanda Estay-Cabello, Angus Pollmann-Stocker, Jonathan Catalán-Álvarez

{"title":"MOTIONS: Exploring Human-Information Interactions Beyond Clicks","authors":"Roberto I. González-Ibáñez, Jacqueline Köhler, Esteban Gaete-Flores, Fernanda Estay-Cabello, Angus Pollmann-Stocker, Jonathan Catalán-Álvarez","doi":"10.1109/SCCC51225.2020.9281256","DOIUrl":"https://doi.org/10.1109/SCCC51225.2020.9281256","url":null,"abstract":"During the last decades, the way people interact with information has drastically changed as a result of the rapid proliferation of new technologies and the arrival of the World Wide Web. This technological evolution has propitiated a transition from physical information objects such as books to their digital and ethereal versions. As a result, an interaction gap between individuals and information objects has emerged. As new technologies appear, alternative possibilities to interact with information can be envisioned, however, little is known about the benefits and costs of such interaction forms (e. g. body-based, virtual and augmented reality, among others). Furthermore, the complexity and cost of conducting studies with technologies such as the above mentioned can be particularly high. To address these problems, we introduce MOTIONS (huMan-infOrmation inTeractION System), a system to conduct evaluations and experiments on human-information interactions with multiple types of interfaces. Additionally, we present a synthesis of case studies conducted using MOTIONS with the aim to compare different types of interactions with digital information objects. On the one hand, these studies demonstrate MOTIONS’ utility as a research tool. On the other hand, results suggest that state-of-the-art interaction technology, while appealing, may not be necessarily cost-effective in terms of performance and user experience. These results shed light not only about potential uses of MOTIONS, but also about design decisions when developing new interfaces to interact with information objects in the digital realm.","PeriodicalId":117157,"journal":{"name":"2020 39th International Conference of the Chilean Computer Science Society (SCCC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129343869","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

On the Reliability and Validity of Digital Competence Evaluation in Higher Education 高等教育数字化能力评价的信度和效度研究

2020 39th International Conference of the Chilean Computer Science Society (SCCC) Pub Date : 2020-11-16 DOI: 10.1109/SCCC51225.2020.9281279

Rafael Saltos-Rivas, Pavel Novoa-Hernández, Rocío Serrano Rodríguez

引用次数: 2

Brigada Covid: health education game for preschoolers 新冠肺炎旅:学龄前儿童健康教育游戏

2020 39th International Conference of the Chilean Computer Science Society (SCCC) Pub Date : 2020-11-16 DOI: 10.1109/SCCC51225.2020.9281219

Alan Silva, Romina Torres, Sven von Brand

引用次数: 0

OSTIA: A Low Cost Alternative for Short Summative Assessments in Massive Programming Courses OSTIA:大规模编程课程中短期总结性评估的低成本替代方案

2020 39th International Conference of the Chilean Computer Science Society (SCCC) Pub Date : 2020-11-16 DOI: 10.1109/SCCC51225.2020.9281261

J. Salas-Morales, J. Munoz-Gama

引用次数: 0

Any Publicity is Good Publicity: Positive, Negative and Neutral Tweets Can All Become Trends 任何宣传都是好的宣传:积极的、消极的和中立的推文都可以成为趋势

2020 39th International Conference of the Chilean Computer Science Society (SCCC) Pub Date : 2020-11-16 DOI: 10.1109/SCCC51225.2020.9281266

Marco A. Palomino, Aditya Padmanabhan Varma

引用次数: 2

Fragmentation-aware spectrum assignment strategies for elastic optical networks with static operation 静态运行弹性光网络的碎片感知频谱分配策略

2020 39th International Conference of the Chilean Computer Science Society (SCCC) Pub Date : 2020-11-16 DOI: 10.1109/SCCC51225.2020.9281223

J. Cedeño, A. Lozada, R. Olivares, N. Jara

{"title":"Fragmentation-aware spectrum assignment strategies for elastic optical networks with static operation","authors":"J. Cedeño, A. Lozada, R. Olivares, N. Jara","doi":"10.1109/SCCC51225.2020.9281223","DOIUrl":"https://doi.org/10.1109/SCCC51225.2020.9281223","url":null,"abstract":"One of the main problems in the design of elastic optical networks is the Routing, Modulation-Level, and Spectrum Assignment problem (RMLSA). In this work, we propose new strategies to solve the spectrum assignment (SA) sub-problem for EONs architectures with static network operation. To this end, we developed two new approaches called Sliding-Fit (SF) and Parcel-Fit (PF), focused on minimizing the spectrum fragmentation obtained when attending network demands. These strategies change to standard paradigm use to search an amount of consecutive FSUs for a given user by choosing a subset of FSUs in the frequency spectrum and later finding users for the selected FSUs. Additionally, the method relies on a physical-later impairment (PLI) model to compute the maximum optical reach and bandwidth demands based on the modulation level - bitrate pair.Experimental results showed that the proposed algorithms obtain less spectrum fragmentation than the best found in the literature, allowing to assign a higher number of users, decreasing the network capacity or increasing the efficiency in the use of resources.","PeriodicalId":117157,"journal":{"name":"2020 39th International Conference of the Chilean Computer Science Society (SCCC)","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123130199","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

Methodological recommendations to face an online semester in a catastrophic situation: the case of a computer science program during the COVID-19 lockdown 在灾难性情况下面对在线学期的方法建议:以COVID-19封锁期间的计算机科学课程为例

2020 39th International Conference of the Chilean Computer Science Society (SCCC) Pub Date : 2020-11-16 DOI: 10.1109/SCCC51225.2020.9281214

Julio Rojas-Mora, O. Herrera, P. Mirabal, M. Lévano

{"title":"Methodological recommendations to face an online semester in a catastrophic situation: the case of a computer science program during the COVID-19 lockdown","authors":"Julio Rojas-Mora, O. Herrera, P. Mirabal, M. Lévano","doi":"10.1109/SCCC51225.2020.9281214","DOIUrl":"https://doi.org/10.1109/SCCC51225.2020.9281214","url":null,"abstract":"The pandemic context forced most of the Higher Education Institutions, and therefore their faculties, to face a semester of teaching in an online mode. The universities defined general guidelines and strategies to try to guarantee a minimum quality of the process. However, the literature reports that, depending on its particularities, preparing a semester-long online course requires a design of several months. Therefore, each lecturer worked according to her experience, guidelines, and support she received: \"What could be done, was done.\" This article reports the teaching experience of the 1st semester 2020 of the Computer Science undergraduate program at the Universidad Católica de Temuco. Some lecturers of this undergraduate program had previous experience in online training; hence they designed strategies that differed in teaching, evaluation, and interaction methodologies while using several technologies available to them. A sample of 115 of our students answered a questionnaire to assess the preferences and problems during this semester. The results show a heterogeneous set of clusters. However, they point to a constructivist asynchronous vision in a group of our students that prefer short videos uploaded by their professors, and the resources that, by their means, they find on the Internet, point towards a constructivist asynchronous vision in a group of our students. The results also allowed us to rescue good practices that help in proposing an emergency online teaching model that will guide the design of the second-semester courses.","PeriodicalId":117157,"journal":{"name":"2020 39th International Conference of the Chilean Computer Science Society (SCCC)","volume":"79 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131124128","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

Local Search for the Direct Aperture Optimisation in IMRT IMRT直接孔径优化的局部搜索

2020 39th International Conference of the Chilean Computer Science Society (SCCC) Pub Date : 2020-11-16 DOI: 10.1109/SCCC51225.2020.9281199

Mauricio Moyano, Guillermo Cabrera-Guerrero

{"title":"Local Search for the Direct Aperture Optimisation in IMRT","authors":"Mauricio Moyano, Guillermo Cabrera-Guerrero","doi":"10.1109/SCCC51225.2020.9281199","DOIUrl":"https://doi.org/10.1109/SCCC51225.2020.9281199","url":null,"abstract":"Radiotherapy (also called Radiation therapy) is a cancer treatment that uses high doses of radiation to destroy cancer cells and shrink tumors. Into external radiotherapy, there is the Intensity Modulated Radiation Therapy (known as IMRT), where it is taken a specific part of the body through the deliver the dose from different angles to damage the tumor, avoiding surrounding organs.When IMRT is approached as a sequential problem, we first need to establish a set of beam angles from which radiation will be released. Then, the radiation intensities for each selected beam angles are computed. Finally, the sequence of apertures we need to deliver the computed treatment plan is generated. Unlike this sequential approach, in the Direct Aperture Optimization (DAO) problems, constraints associated with the number of deliverable aperture shapes, just as some physical constraints, are taken into consideration while the intensities optimisation process is taking place. According to some authors, DAO generates better treatments with fewer apertures for IMRT.In this work, we propose a heuristic algorithm, mixing a local search algorithm and mathematical programming to solve the DAO problem. We apply our algorithm on a prostate cancer case and compare ours results with those obtained in the sequential approach. Results show that our algorithms can find treatment plans in competitive time when considering the number of deliverable aperture shapes.","PeriodicalId":117157,"journal":{"name":"2020 39th International Conference of the Chilean Computer Science Society (SCCC)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132680136","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

New initialization for algorithms to solve Median String Problem 新的初始化算法来解决中位数字符串问题

2020 39th International Conference of the Chilean Computer Science Society (SCCC) Pub Date : 2020-11-16 DOI: 10.1109/SCCC51225.2020.9281215

P. Mirabal, José Ignacio Abreu Salas, Diego Seco, Oscar Pedreira, Edgar Chávez

引用次数: 1