Public Articles
Revolución en rediseño e innovación del funcionamiento de una Ferretería Valdiviana y cómo serán sus nuevos procesos. v3
Propuesta de Rediseño de proceso de preventa de telefonica del sur
and 2 collaborators
Abstract
Telefónica del sur is a business company that nowadays is withing “grupo GTD”, wich is going through big changes and restructuring of some processes, wich is why in this paper we will analyze one of these, the process is called “Pre-Venta”, this process is within the “Ventas” macro processes and his main role is to give IT support to the business executives when these get a complex problem, to understand the process we had to model a BPMN to be able to follow clearly every step, given that the industry is governed by certain norms to be able to certify the business company.
Revolución en rediseño e innovación del funcionamiento de una Ferretería Valdiviana y cómo serán sus nuevos procesos.
and 2 collaborators
Being pioneers in innovation undoubtedly makes a company more attractive to the market, to be able to offer the customer an authentic solution is the seal that the company will acquire after the redesign, mainly is to give the user the possibility to take ideas out of their imagination and materialize them In an object, the approach we will address will be to offer solutions in the context of a ironmongery, either for a spare, or an adapter that does not exist in the Market. The support of design methodologies helped us to find the solution we were looking for, also to know how to get the client to transmit what he wants. Finally we managed to transcend in the ironmongery Market of Valdivia and compete side by side with the big chains (Sodimac, Ferretería Sur, among others).
Resumen
Ser pioneros en innovación sin duda hace que una empresa sea más atractiva para el Mercado, poderle ofrecer al cliente una solución autentica es el sello que adquirirá la empresa luego del Rediseño, principalmente es darle al usuario la posibilidad de sacar ideas de su imaginación y materializarlas en un objeto, el enfoque que abordaremos será en ofrecer soluciones en el contexto de una Ferretería, ya sea para un repuesto, o un adaptador que no existe en el Mercado. El Apoyo de metodologías de diseño nos ayudó a encontrar la solución que buscábamos, también para saber cómo lograr que el cliente nos transmita lo que desee. Finalmente logramos trascender en el Mercado Ferretero de Valdivia y competir codo a codo con las grandes cadenas (Sodimac, Ferretería Sur, entre otros).
Aplicación de metodologías de sistemas de información para el re-diseño de procesos en una empresa de karting
and 2 collaborators
abstract
Processes within companies define their operation, structure and efficiency towards the market, therefore, formalizing the activities performed in a process is the key to detect failures. The company RallyKarting today can be named as an entertainment center for extreme sports in the country, however, there are many organizational problems such as shift conflicts, disorder in the designation of charges, null telephone reception, use of a software that isn’t adapted to the culture of the company, among others. The analysis consists of visiting the company as a client to carry out an external observation of the processes and, in addition, an internal observation through a survey with the local administrator. From both observations we obtain a model of activities made with the BPMN, studied to make a redesign that solves the problems found.
Análisis y rediseño del Proceso de Seguimiento de Comunidades en la Fundación Techo Chile Enfocado en su Rapidez de Ejecución
and 2 collaborators
El proceso de seguimiento de las comunidades de la fundación TECHO Chile es fundamental para la organizacion puesto que define la base del trabajo que ellos hacen acompañando a las comunidades que habitan en campamentos. Su relevancia se vislumbra al observar que es controlado por dos entes, uno regional y otro nacional, los cuales se deben coordinar para no reejecutar labores, donde el tiempo de ejecución del proceso es lo fundamental. La optimización del proceso se guío en ideas revolucionarias y evolucionarias que pudieran ser adoptadas por la cultura organizacional de la fundacion. Finalmente se descubre, entre otras cosas al rediseñar puede ser igual de importante llegar a la conclusión de generar un gran nuevo sistema de información como puede ser el cambio de pequeños detalles que sin conocer la cultura de la empresa pueden ser insignificantes.
Rediseño del proceso de actualizacion socioeconomica con un acercamiento lean thinking
and 1 collaborator
Cada año en la universidad austral de chile, existe un periodo en el que se realiza la actualización socioeconómica, en la cual se debe entregar una cantidad muy extensa de documentos, lo que conlleva una gran cantidad de trámites, esto a su vez, significa muchas dificultades en la organización interna de la universidad. El gran volumen de papeles y la escasa cantidad de gente en la organización, hacen que sea un proceso bastante largo y lento, además de la poca tecnología con la que se cuenta para ingresar los datos. Dentro de lo posible se intentó entender a fondo el proceso, haciendo varias entrevistas a la gente que trabaja ahí, para plantear un rediseño, usando la metodología lean thinking como guía para este, entre otros principios de diseño. Se descubrió que existe una base de datos ya implementada, pero que se usa para ingresar datos y no extraer información de la misma, se logró modelar tres BPMN, representando la situación actual, una ideal y otra realista para plantear como solución. Se plantea también un entorno básico con respecto a la implementación de la solución. Por ultimo nuestras conclusiones de lo investigado, sugieren que es posible de llevar a cabo un cambio en el proceso, pero aún quedan incógnitas a tener en cuenta antes de poder seguir el desarrollo del proyecto.
Coordinación ambulancias Hospital Base Valdivia
and 2 collaborators
In this paper we’ll discuss the analysis and redesign of the process of coordination for the ambulances of ”Hospital Base de Valdivia”.
The hospital has an ambulance service for transporting patients in need of periodic treatment, like dialisis. These ambulances are coordinated centrally by a coordinator who receives each request, collects them, and generate an optimal route for each ambulance.
The coordinator has done this job for many years, and has a wealth of tacit knowledge about the process that is not available elsewhere. She knows most of the patients, and the most common routes by heart. We think that this is a problem, if something were to happen to the coordinator, her replacement would not be able to do her job, and to solve this problem we focused on formalizing the process, and developing tools to simplify the process, so anyone could do the job.
Abell 2744 paper
and 3 collaborators
Tópicos Especiais em Engenharia de Software 2 - Work Report
This document describes the work done during the Tópicos Especiais em Engenharia de Software 2 course. This course was taught by Dsc Claudia Werner and was hold during the second period of the 2015 PESC-UFRJ academic year. The work was a continuation of the research started during the Reutilização de Software course (also taught by Dsc Claudia Werner during the first period of the 2015 academic year).
The initial research was mainly about Software Processes Composition. It involved, among other tasks, a basic literature review and produced a document that shows some important related articles and describes some problems that we believe that are related to the Development Processes Composition. In contrast with the first research - that involved a more theoretical investigation - the work described in this document had a more practical approach. It consisted, among other things, in the implementation of an API that provides some operators for Processes Composition and Processes Tailoring. These operators manipulate only processes described in BPMN and were firstly introduced by \cite{Istoan_2012} and \cite{Pillat_2012}. The work also involved the integration of this API with a web application called ProcessHub Web.
The software development area - as other areas - faces a very competitive scenario \cite{Cerpa_2009}. Maximizes human resources and deliver better softwares with low costs are a goal gold. IT Companies had heavily invested in software process development improvement as strategy to achieve this goal \cite{sommerville2004} \cite{Dumas_2013} \cite{Kelly_1999}. We truly believe that organizations could have benefits in adopting techniques of Business Process Managment to improve the quality of their services. This adoption - specially in large scale - inevitably requires Processes Composition and Processes Tailoring. This work gives a small contribution to this area since it explores some real problems related with Processes Composition and Processes Tailoring.
Supplementary information for “Impact of reduced conductivity on the performance of wire antennas”
PUI2016 Extra Credit Project Report: Medicaid Hospital Visits Analysis in New York City
Zhaohong Niu, EstherNiu[github], zn352
Stereovision
Uji Akuifer -- Hidrogeologi Umum
and 2 collaborators
Judul: Pumping test
Penulis: Dasapta Erwin Irawan dan Deny Juanda Puradimaja
Kontributor: Adi Andika, ST., Adhi Pramudito, ST, MT, Ali Lukman, ST, Dimas Maulana, ST.
Status: Merupakan bab tambahan dari Buku Hidrogeologi Umum Edisi 2016
Lisensi: CC-BY ver 2.0
Berikut sedikit quote dari kontributor mengenai uji akuifer (atau disebut juga sebagai uji pompa) (Akun Instagram Adhi Pramudito).
Menyambung post sebelumnya, mungkin banyak yang bertanya-tanya ngapain saya sok-sok an tidur di bawah rembulan? (haha kayak ada yang bertanya-tanya aja). Jawabannya adalah saya sedang melakukan pumping test!
Yup, lubang yang baru dibor wajib banget buat diuji kapasitasnya dengan cara pumping test ini. Kenapa wajib ? Kita tahu bahwa keadaan air tanah di setiap daerah berbeda-beda, baik kapasitasnya maupun medianya. Kadang orang seenak jidat bilang saya mau debit 10 l/s tanpa tahu karakteristik geologinya seperti apa, yah kalau tidak ada hukum alam air mengalir di situ ya tidak akan ada airnya!
Pumping test ini berguna untuk mengetahui kapasitas sebuah akifer air tanah, dari hasilnya nanti kita bisa tahu debit optimum yang bisa kita ambil dari akifer tersebut. Kalau hasilnya bilang 3 l/s, Insya Allah diambil berapa lama pun dengan debit segitu tidak akan merusak lingkungan. Yang sering terjadi adalah debit optimum hanya 3 l/s tapi dengan serakahnya orang ambil lebih dari itu, ya turunlah muka air tanahnya, ambles, terus semua marah-marah.
Apapun yang ada di alam kalau kita ambil lebih dari kapasitasnya pasti ujung-ujungnya berdampak buruk untuk manusianya sendiri, kalau alam sih cuma berusaha menyeimbangkan dirinya sendiri. Ya, makanya Allah selalu bilang kita tidak boleh berlebihan dalam hal apapun.
The Temporal and Weather Data Analysis on NYC Yellow Taxi Ridership Demands
Several researches have been done since The NYC Taxi & Limousine Commission has released the detailed historical dataset covering over 1.1 billion individual taxi trips, from January 2009 through June 2016. Many Data scientists have examined this dataset passionately, in order to discover this great city’s neighborhoods, nightlife, airport traffic, and more. In this contribution, the likelihood of occurrence of long taxi trips during the day and night has been studied, as well as the relationship of weather and taxi demands. The present study has investigated NYC yellow taxi trips by looking at the two months period of 2016(January and June) based on the temporal factors and weather condition. The results show it was more likely long trip would occur during the nighttime compares to daytime, and the snow depth does greatly affect the demand of taxi trips, but precipitation does not display evident correlation with demand of taxi rides.
Keywords: NYC, yellow taxi, data, demand
Informe 1 MOOC 3
Se realizó la corrección de los materiales de la ruta de aprendizaje que tenían problemas ortográficos. La siguiente tabla enumera dichos materiales:
Advection-Diffusiuon: weak form
\begin{align} R(u) = 1 + \frac{\rho}{n} \times \frac{\partial S}{\partial u} \end{align}
\begin{align} S = k_p u^b \\ \frac{\partial S}{\partial u} = b k_p u^{b-1} \end{align}
\begin{align} \vec{v} = \frac{\vec{v_e}}{R(u)} \end{align}
\begin{align} D = \frac{D_l}{R(u)} \end{align}
Constants: b, kp, Dl
Velocity field: $\vec{v_e}$
Mass conservation law, assuming that $\vec{v}$ and D are functions of u.
\begin{align} \frac{\partial u}{\partial t} = - \nabla \cdot \left( \vec{v} u \right) + \nabla \cdot \left( D \nabla u \right) \\ \end{align}
Where u is concentration and t is time.
Integrate on volume Ω and multiply by the test function s.
\begin{align} \int_{\Omega}\frac{\partial u}{\partial t} s d\Omega + \int_{\Omega}\nabla \cdot \left(\vec{v} u \right) s d\Omega - \int_{\Omega} \nabla \cdot \left( D \nabla u \right) s d\Omega = 0 \end{align}
Integrate by parts the last term of the left-had side.
\begin{align} \int_{\Omega} \nabla \cdot \left( D \nabla u \right) s d\Omega = \int_{\Omega} \nabla \cdot \left( s D \nabla u \right) d\Omega - \int_{\Omega} D \nabla u \nabla s d\Omega \end{align}
Apply Gauss divergence theorem on the first part of the left-hand side.
\begin{align} \int_{\Omega} \nabla \cdot \left( s D \nabla u \right) d\Omega = \int_{\Gamma_{N} \cup \Gamma_{D}} s D \nabla u \cdot n d\Gamma \end{align}
Because s = 0 on ΓD.
\begin{align} \int_{\Omega} \nabla \cdot \left( s D \nabla u \right) d\Omega = \int_{\Gamma_{N}} s D \nabla u \cdot n d\Gamma \end{align}
Put the pieces together. \begin{align} \int_{\Omega}\frac{\partial u}{\partial t} s d\Omega + \int_{\Omega}\nabla \cdot \left(\vec{v} u \right) s d\Omega - \int_{\Gamma_{N}} s D \nabla u \cdot n d\Gamma + \int_{\Omega} D \nabla u \nabla s d\Omega = 0 \end{align}
GP SN LCVS
and 1 collaborator
We want to interpolate SN lightcurves with gaussian processes. The interpolation will be used to construct templates, which are then used to construct bolometric lightcurves, filling in for missing data.
The lightcurves have diverse sampling, diverse noise, generally a smooth behavior, with more variability at early times, rather than late times (after the 64Ni decay starts dominating).
Here is an example of a very good, very well sampled lightcurve, with photometry from 2 telescopes, which is not consistent within the tiny tiny, probably underestimated observational uncertainties:
Improving Information Flow on Neural Networks
and 1 collaborator
Part One: Small World - Random Watts Strogatz Graphs as Neural Networks
[VM: just to say I see it now!]
Intro: Small World Networks and Human Neural Networks Small world networks have been studied relatively extensively as a practical way to model the neural network of the human brain, thus we may use applications of graph theory to investigate the connections between neurons and ability for information flow. \cite{Hilgetag_2015} In the late 2000’s a collaborative study was released to provide experimental evidence of the small-world nature of the human brain via Magnetic Resonance Imaging on human subjects. In this study, it was established that although the human neural network in its entirety is not necessarily a small-world network in itself, the various sections of the human neural network do exhibit small-world characteristics \cite{Wang_2009}. Although the small world network is not necessarily the most accurate model for the entire brain, it is an acceptable place to start our investigation, as many other animals with similar DNA sequences to humans exhibit these small world characteristics.\cite{SPORNS_2004}. With that in mind, in many applications, small world networks have been considered moderately useful as basic graph theoretical models to serve as a neural network, and we can then incorporate this model to advanced computing applications. To begin the investigation, we will jump in and consider simple, random small world networks of the Watts Strogatz type, as well as random, dense GNM digraphs, as small testing models for the neural networks we will test in a later part. On these random network simulations, we assign a random weight value to each edge selected randomly from a Gaussian distribution 0 ≤ x ≤ 1 in the network. The random edge weight value is essentially a part of a larger data set, a column vector with n rows according to the number of edges. In a later investigation, we will see that the column vector we feed onto the network is a large data set that we will use to train the network with. We will also repeat the above simulations with edge weights assigned a value chosen at random from a Gaussian distribution 0 ≤ n ≤ 100 and observe any differences in the results.
So, each edge weight is a part of our random data set of interest that we are applying to the network in order to obtain a feel for manipulating and updating weights in Python, and how the ability for information flow across the network is affected by the edge weights, connectivity, clustering, and other parameters. As a warm up, we will look at how the assortativity in weight values (std. dev) affects the aforementioned properties. The reason why we are using these simple simulations as a warm up, is to assure that we have a strong grasp of the NetworkX package, and because it has been observed in several other experiments (cite papers) that different data sets exhibit varying degrees of training success on different neural network structures, hence why we are considering standard deviations of randomly generated data sets on these networks. Plots of standard deviation of edge weights and various parameters included below. The first round of trials was carried out with constant capacity cap = 1 and random weights, while the second round of trials was carried out with constant weight weight = 1 and random capacity.
Spatial Layouts of Playgrounds in New York City
and 5 collaborators
Our project is aimed at children growing up in NYC, by investigating the information of recreation facilities like playgrounds around zip codes zones and residential neighborhoods. Through this project we want to supply information of the playgrounds within walking distance in neighborhood units, the amounts for average children living in communities, the crime rates around the playgrounds, the transportation situation, the restaurants and schools around the playgrounds for parents to consider that when they plan to take children out.