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2019 IV Jornadas Costarricenses de Investigación en Computación e Informática (JoCICI)最新文献

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Use and Perception of Open Source by Students of the National University in non IT Careers 国立大学学生在非IT职业中对开源的使用和认知
2019 IV Jornadas Costarricenses de Investigación en Computación e Informática (JoCICI) Pub Date : 2019-08-01 DOI: 10.1109/JoCICI48395.2019.9105131
C. Fernández, Irene Hernández Ruiz
{"title":"Use and Perception of Open Source by Students of the National University in non IT Careers","authors":"C. Fernández, Irene Hernández Ruiz","doi":"10.1109/JoCICI48395.2019.9105131","DOIUrl":"https://doi.org/10.1109/JoCICI48395.2019.9105131","url":null,"abstract":"This paper discloses some initiatives that have been carried out by the National University with open source and an exploratory study of the use and perception of a part of the students of the National University that are studying careers different from those of IT technologies, with In order to know the level of knowledge of free software.","PeriodicalId":154731,"journal":{"name":"2019 IV Jornadas Costarricenses de Investigación en Computación e Informática (JoCICI)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125804850","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
Analysis of Different Pre-Processing Techniques to the Development of Machine Learning Predictors with Gene Expression Profiles 不同预处理技术对开发具有基因表达谱的机器学习预测因子的分析
2019 IV Jornadas Costarricenses de Investigación en Computación e Informática (JoCICI) Pub Date : 2019-08-01 DOI: 10.1109/JoCICI48395.2019.9105145
Ian Durán, Roberto Leandro, J. Guevara-Coto
{"title":"Analysis of Different Pre-Processing Techniques to the Development of Machine Learning Predictors with Gene Expression Profiles","authors":"Ian Durán, Roberto Leandro, J. Guevara-Coto","doi":"10.1109/JoCICI48395.2019.9105145","DOIUrl":"https://doi.org/10.1109/JoCICI48395.2019.9105145","url":null,"abstract":"In this ongoing research work we analyzed the impact of several different data pre-processing and normalization methods on the performance of Support Vector Machines (SVM). The pre-processing methods used are: deleting missing values, imputing zeroes, means, medians, modes, K-Nearest Neighbors (KNN), and Predictive Mean Matching (PMM). Each one of these pre-processing methods will be paired with two normalization methods, log2 and Z-Score. After training, the models will be tested using a validation set, derived from the training set, representing an unseen partition dataset. Subsequently performance metrics will be obtained and compared across each of the models for the training performance and the test performance. These comparisons will then be analyzed and interpreted. The aim of our work was to potentially identify the impact of pre-processing approaches on predictor construction to potentially identify a standard method for expression profile analysis using machine learning methods.","PeriodicalId":154731,"journal":{"name":"2019 IV Jornadas Costarricenses de Investigación en Computación e Informática (JoCICI)","volume":"108 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131762552","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
Identification of Unsuitable Content for Children in Video Gaming Forums 识别电子游戏论坛中不适合儿童的内容
2019 IV Jornadas Costarricenses de Investigación en Computación e Informática (JoCICI) Pub Date : 2019-08-01 DOI: 10.1109/JoCICI48395.2019.9105201
Noelia Navarro-Murillo, Paulo Calvo-Vargas, Edgar Casasola-Murillo
{"title":"Identification of Unsuitable Content for Children in Video Gaming Forums","authors":"Noelia Navarro-Murillo, Paulo Calvo-Vargas, Edgar Casasola-Murillo","doi":"10.1109/JoCICI48395.2019.9105201","DOIUrl":"https://doi.org/10.1109/JoCICI48395.2019.9105201","url":null,"abstract":"Online forums for videogames fans may represent a threat of exposure to topics and language non-suitable for their age. The following case study shows how the analysis of topics threads based on interactions of micro messages extracted from videogames forums allowed us to identify the challenges associated to the processing of this particular type of content. An original technique for segmentation of groups of interactions was evaluated with the objective of applying algorhythms for topics detection. Despite the high volume of micro messages that were highly disperse, overloaded with emojis and which contained slang associated with every community and videogame; it was possible to detect inappropriate topics according to the age associated to the category of the videogame.","PeriodicalId":154731,"journal":{"name":"2019 IV Jornadas Costarricenses de Investigación en Computación e Informática (JoCICI)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127986180","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
Scheduling of events through notifications in mobile devices 通过移动设备中的通知调度事件
2019 IV Jornadas Costarricenses de Investigación en Computación e Informática (JoCICI) Pub Date : 2019-08-01 DOI: 10.1109/JoCICI48395.2019.9105316
Fernando Zaldívar Coto, Gustavo López Herrera, Luis Quesada Quirós, Kryscia Ramírez Benavides
{"title":"Scheduling of events through notifications in mobile devices","authors":"Fernando Zaldívar Coto, Gustavo López Herrera, Luis Quesada Quirós, Kryscia Ramírez Benavides","doi":"10.1109/JoCICI48395.2019.9105316","DOIUrl":"https://doi.org/10.1109/JoCICI48395.2019.9105316","url":null,"abstract":"It is very common to interact with notifications every day with our mobile devices. Notifications have advantages and disadvantages. They bring information for the user, but they are also interruptions. In this study, the authors provide a solution for scheduling events through notifications. They created an application using the Google Calendar platform and the Swift programming language to respond to events through notifications. Then, the participants evaluated the application through the usability scale of the system (SUS), and the results were positive. The authors received excellent comments and feedback from the participants in the evaluation.","PeriodicalId":154731,"journal":{"name":"2019 IV Jornadas Costarricenses de Investigación en Computación e Informática (JoCICI)","volume":"34 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125717920","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
A Study of the Social Perception of Technology in Public Spaces in Alajuela Central Canton, Costa Rica 哥斯达黎加阿拉胡埃拉中州公共空间技术社会感知研究
2019 IV Jornadas Costarricenses de Investigación en Computación e Informática (JoCICI) Pub Date : 2019-08-01 DOI: 10.1109/JoCICI48395.2019.9105268
Andrés Víquez Víquez, Irene Hernández Ruiz, Fabián Pérez Gutiérrez
{"title":"A Study of the Social Perception of Technology in Public Spaces in Alajuela Central Canton, Costa Rica","authors":"Andrés Víquez Víquez, Irene Hernández Ruiz, Fabián Pérez Gutiérrez","doi":"10.1109/JoCICI48395.2019.9105268","DOIUrl":"https://doi.org/10.1109/JoCICI48395.2019.9105268","url":null,"abstract":"The present work makes an analysis of the results of a study of the social perception of technology applied in the public spaces of the central canton of Alajuela, Costa Rica. This study is of a non-probabilistic type, commonly used in exploratory research, which counted with the participation of 122 visitors, 55 women and 67 men, aged between 15 and 79 years, in 6 parks of the central canton of Alajuela, using QGIS tool for the spatial analysis of the data.","PeriodicalId":154731,"journal":{"name":"2019 IV Jornadas Costarricenses de Investigación en Computación e Informática (JoCICI)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134492359","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
Analysis of images to identify specific user actions 分析图像以识别特定的用户操作
2019 IV Jornadas Costarricenses de Investigación en Computación e Informática (JoCICI) Pub Date : 2019-08-01 DOI: 10.1109/JoCICI48395.2019.9105211
José Arguedas Castillo, Walter Alvarez Grijalba, Randall Araya Campos, Paula Estrella
{"title":"Analysis of images to identify specific user actions","authors":"José Arguedas Castillo, Walter Alvarez Grijalba, Randall Araya Campos, Paula Estrella","doi":"10.1109/JoCICI48395.2019.9105211","DOIUrl":"https://doi.org/10.1109/JoCICI48395.2019.9105211","url":null,"abstract":"The study of any writing process, such as translation or programming, typically involves collecting data about user actions including keystrokes and mouse clicks. A tool designed for this type of data collection is ResearchLogger and, in addition to keystrokes and clicks, it collects screenshots at predefined intervals and images around the mouse pointer. The main roadblock for researchers using this tool is analyzing the images it generates, which are very diverse and usually need to be processed manually. In particular, one action that is very hard to recognize without using the images is text selection; this action is very important since it might indicate copying, replacing or formatting of a text passage. In this paper, we present two solutions that support researchers in the review of such images and we test them using data from a previous pilot study. Results show that they can be useful to detect images with the specific user action of text selection.","PeriodicalId":154731,"journal":{"name":"2019 IV Jornadas Costarricenses de Investigación en Computación e Informática (JoCICI)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134123380","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
Privacy Concerns about common IoT devices: first approach in Costa Rica 对常见物联网设备的隐私担忧:哥斯达黎加的第一种方法
2019 IV Jornadas Costarricenses de Investigación en Computación e Informática (JoCICI) Pub Date : 2019-08-01 DOI: 10.1109/JoCICI48395.2019.9105189
Juan J. Vargas-Morales
{"title":"Privacy Concerns about common IoT devices: first approach in Costa Rica","authors":"Juan J. Vargas-Morales","doi":"10.1109/JoCICI48395.2019.9105189","DOIUrl":"https://doi.org/10.1109/JoCICI48395.2019.9105189","url":null,"abstract":"The Internet of Things (IoT) devices have grown in popularity. The companies that built them have not included good security and privacy measures to protect the identification of the devices through an analysis of the metadata contained in the traffic packets. A case study was implemented with five IoT devices (Foscam camera, baby monitor, smart TV box, smart TV set, Hue Bridge light system) connected by an intranet. The traffic generated by those devices is analyzed in terms of packet size, external communications, DNS requests, traffic direction, and protocols used.The packet traffic lets us determine that during normal operation the IoT devices communicate with many sites around the world, sometimes in unexpected ways. We arrive at the conclusion that the IoT devices disclose private information about the life and costumes of the family members using them.","PeriodicalId":154731,"journal":{"name":"2019 IV Jornadas Costarricenses de Investigación en Computación e Informática (JoCICI)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132919119","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
Computer simulation of NMR logging 核磁共振测井的计算机模拟
2019 IV Jornadas Costarricenses de Investigación en Computación e Informática (JoCICI) Pub Date : 2019-08-01 DOI: 10.1109/JoCICI48395.2019.9105319
Francisco José Benavides Murillo
{"title":"Computer simulation of NMR logging","authors":"Francisco José Benavides Murillo","doi":"10.1109/JoCICI48395.2019.9105319","DOIUrl":"https://doi.org/10.1109/JoCICI48395.2019.9105319","url":null,"abstract":"One of the main purposes of scientific computing is to reproduce real laboratory or \"in-situ\" experiments, using numerical and computational models. Nuclear magnetic resonance (NMR) has been used to characterize rock’s porous formations in oil reservoirs, in laboratory tests and field. Recently, these experiments can be reproduced in the computer, using a precise model of the porous media given by micro-tomographic images of the rock sample. The NMR simulated experiments have some advantages over the real experiment, due to their efficiency and lower costs; but they can also provide a better understanding of the physical phenomenon associated to an NMR realization. In this paper, a case of this process is described: Real laboratory experiments are compared with simulated ones, and this comparison is used to improve computer simulation parameters in order to provide a better match to laboratory results. This can lead to better estimates of petrophysical deliverables and to the improvement of the computer model precision.","PeriodicalId":154731,"journal":{"name":"2019 IV Jornadas Costarricenses de Investigación en Computación e Informática (JoCICI)","volume":"167 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131967922","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
A Robotic Assistant using Speech Recognition to Create Appointments and Provide Reminders 使用语音识别创建约会和提供提醒的机器人助手
2019 IV Jornadas Costarricenses de Investigación en Computación e Informática (JoCICI) Pub Date : 2019-08-01 DOI: 10.1109/JoCICI48395.2019.9105166
A. Méndez-Porras, J. Alfaro-Velásco, L. Cardinale-Villalobos, Luis Miguel Esquivel-Sancho
{"title":"A Robotic Assistant using Speech Recognition to Create Appointments and Provide Reminders","authors":"A. Méndez-Porras, J. Alfaro-Velásco, L. Cardinale-Villalobos, Luis Miguel Esquivel-Sancho","doi":"10.1109/JoCICI48395.2019.9105166","DOIUrl":"https://doi.org/10.1109/JoCICI48395.2019.9105166","url":null,"abstract":"Voice recognition services are very common nowadays. These services offer a lot of opportunities to shift the challenges of input and output between both humans and computers to a more communicative realm. An event reminder system based on speech recognition with autonomous features can help to create and catalogue appointments and events of interest in a natural and efficient way.The goal of this project is to aid users in creating digital reminders through the use of robots based on speech recognition. We propose a hardware-software architecture for a robot based on an Arduino Uno and a smartphone running the Android platform.The first prototype of this small robot assitant is able to receive voice commands and move forward, backward, to the right, and to the left as well as move its head forward and backward. In addition, it is capable of converting voice input into stored events and then providing aural reminders according to the date and time provided.","PeriodicalId":154731,"journal":{"name":"2019 IV Jornadas Costarricenses de Investigación en Computación e Informática (JoCICI)","volume":"249 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123262888","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: 2
Machine learning approaches for the identification of new driver-like genes using microarray expression profiles 使用微阵列表达谱识别新的驱动样基因的机器学习方法
2019 IV Jornadas Costarricenses de Investigación en Computación e Informática (JoCICI) Pub Date : 2019-08-01 DOI: 10.1109/JoCICI48395.2019.9105274
L. D. Mora, O. Azofeifa, D. Diaz, J. Guevara-Coto
{"title":"Machine learning approaches for the identification of new driver-like genes using microarray expression profiles","authors":"L. D. Mora, O. Azofeifa, D. Diaz, J. Guevara-Coto","doi":"10.1109/JoCICI48395.2019.9105274","DOIUrl":"https://doi.org/10.1109/JoCICI48395.2019.9105274","url":null,"abstract":"Cancer is the second most important cause of deaths worldwide. Because of this, research efforts have generated vast amounts of data, such as gene expression profiles and cell lines to use in knowledge discovery research. By using the expression profiles from these cell lines, it is possible to identify novel driver-like candidates through the development of machine learning models. In this study, we focused on constructing a robust classifier capable of identifying new driver genes from a prediction set composed of non-coding genes. The training set was constructed using 300 known pan-cancer driver genes previously reported in the literature, and ~2700 non-driver genes. For our work we used two machine learning algorithms: random forests and support vector machines. During the construction of each model, optimization or fine-tuning was performed, which included feature selection using a random forest-based method, balancing of the classes due to the training set being imbalanced, and normalization in order to reduce the effects of extreme values, and to make samples comparable. Our results indicate that the highest performing model was the random forest, with an AUC-ROC of 0,9696. When applied in the prediction set, it identified 525 potential non-coding driver-like genes, with potential association to cancer. We expect that a next step would be to functionally annotate these candidates and look for co-expression between the diversity of cancer that data exposes.","PeriodicalId":154731,"journal":{"name":"2019 IV Jornadas Costarricenses de Investigación en Computación e Informática (JoCICI)","volume":"132 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115761119","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
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