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Dave Beckett's Resource Description Framework (RDF) Resource Guide
Resource Description Framework (RDF) is a standard for describing resources on the web. This guide contains links to many RDF resources including examples, documents, software, tools and projects that use it.
links for 2010-02-07
Febrero 7, 2010 — Nelson Piedralinks for 2010-01-27
Enero 27, 2010 — Nelson Piedra-
Intelligent agents and the Semantic Web
Developing an intelligent Web
Daniel J Lewis, Technology Evangelist/Computer Scientist, OpenLink Software
Summary: The Semantic Web envisioned by Berners-Lee, Hendler, and Lassila in 2001 was a grandiose vision that involved the use of agents to book doctor appointments and to find the best driving routes with the least hassle. The envisaged system was built upon formal ontologies that had already achieved a large following of scientists and agent developers. Although they raised some important issues and put forward interesting connections between technologies, they missed one thing: the fact that the Web had turned into a web of documents. Therefore, a middle way needed to occur between the formalism of ontologies and the informalism of documents. This is known as Linked Data. Linked Data coupled with agent technology is an ideal way of dealing with Semantic Web data. This article provides an overview o
The dark night of the soul |La noche oscura del alma
Diciembre 14, 2009 — Nelson Piedra
The dark night of the soul
Loreena writes in the CD booklet about this song:
May, 1993 – Stratford … have been reading through the poetry of 15th century Spain, and I find myself drawn to one by the mystic writer and visionary St. John of the Cross; the untitled work is an exquisite, richly metaphoric love poem between himself and his god. It could pass as a love poem between any two at any time … His approach seems more akin to early Islamic or Judaic works in its more direct route to communication to his god … I have gone over three different translations of the poem, and am struck by how much a translation can alter our interpretation. Am reminded that most holy scriptures come to us in translation, resulting in a diversity of views.Music by Loreena McKennittLyrics by St. John of the Cross (San Juan de la Cruz), arr. and adapted by Loreena McKennittFrom: The mask and mirror (1994).
Upon a darkened night
the flame of love was burning in my breast
And by a lantern bright
I fled my house while all in quiet rest
Shrouded by the night
and by the secret stair I quickly fled
The veil concealed my eyes
while all within lay quiet as the dead
Chorus
Oh night thou was my guide
oh night more loving than the rising sun
Oh night that joined the lover
to the beloved one
transforming each of them into the other
Upon that misty night
in secrecy, beyond such mortal sight
Without a guide or light
than that which burned so deeply in my heart
That fire t’was led me on
and shone more bright than of the midday sun
To where he waited still
it was a place where no one else could come
Chorus
Within my pounding heart
which kept itself entirely for him
He fell into his sleep
beneath the cedars all my love I gave
And by the fortress walls
the wind would brush his hair against his brow
And with its smoothest hand
caressed my every sense it would allow
Chorus
I lost myself to him
and laid my face upon my lovers breast
And care and grief grew dim
as in the mornings mist became the light
There they dimmed amongst the lilies fair
There they dimmed amongst the lilies fair
There they dimmed amongst the lilies fair
La noche oscura del alma
Canciones del alma que se goza de haberllegado al alto estado de la perfección,que es la unión con Dios, por el caminode la negación espiritual
Galápagos 2009
Noviembre 28, 2009 — Nelson PiedraDarwin imaginó que es posible que toda la vida descienda de una especie original de la antigüedad. Las pruebas de ADN apoyan esta idea.
Probablemente todos los seres orgánicos que han vivido en esta tierra han descendido de alguna una forma de vida inicial. Sin embargo de esto, hay espacio y necesidad para el acto de la grandeza en esta concepción de la vida, lo he podido vivir en este viaje a Galápagos. Pienso que mientras la tierra gira según las leyes de la física – desde un interminable inicio – el horizonte nos plantea opciones de una maravillosa evolución.
links for 2009-11-17
Noviembre 17, 2009 — Nelson Piedra-
Nature of the rubric
The rubric for scoring academic skills is essentially qualitative and descriptive in nature and relies on criterion-referenced perspectives. It serves to appraise academic competencies such as the ability to critique, to produce scholarly work, to synthesize, and to apply newly acquired principles and concepts. It requires the use of criteria that best describe actual student products in a postsecondary setting. The criteria form the left-hand column of the two-way table format and the horizontal continuum contains headings indicating four increasing levels of performance towards competency mastery (Wiggins, 1998).
The use of the scale involves the acts of scoring, interpreting, and judging. (Forgette-Giroux, & Simon, 1998; Simon, & Forgette-Giroux, 2000). Scoring occurs when one identifies, within the scale, and for each criterion, the cell description that most closely matches the observed performance. The interpretation consists of locating the col…
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This is a rubric for students collaborating on a shared document using an online word processing tool like Buzzword, Google Documents or Zoho Documents. The two aspects examined here are the technical use of the tool and the collaborative aspect of sharing and co-operation.
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This is a rubric for Collaborating. Students are using electronic tools for sharing, editing and uploading materials. The tools would include products like elluminate. The rubric looks at the appropriate use of the tool to facilitate the discussion. The rubric does not look at the content or understanding specifically. There are three major areas or aspects of use. These are preparation for the collaboration session, the use of collaboration and communication features.
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Podcasting is a creative process involving several different components. A successful podcast must be planned and scripted. It requires care and preparation to record and construct. Constructing the cast requires high quality speech, care and effort. (This task does not include uploading or posting the casts to websites as often schools restrict this.)
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iRubric is a comprehensive rubric development, assessment, and sharing tool. Designed from the ground up, iRubric supports a variety of applications in an easy-to-use package. Best of all, iRubric is free to individual faculty and students. iRubric School-Edition empowers schools with an easy-to-use system for monitoring student learning outcomes and aligning with standards.
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Most rubrics consist of objectives, performance characteristics, and points or scores that indicate the degree to which the objectives were met. Rubrics should be introduced to the students at the very beginning of a project unit — either present the rubric to the class or collaborate with the students to structure the rubric. Rubrics allow students to understand the criteria for assessment before they start the project.
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Rubrics provide an objective scale with which teachers evaluate student work. By establishing criteria and defining the qualities that should be evident in an assignment ahead of time, teachers help students know exactly what is expected and provide a tool for them to check their own work before submitting it. However, writing a good rubric involves being specific enough to make the assignment clear, while remaining general enough to permit a creative demonstration of learning.
Read more: http://teaching-strategies-mentorship.suite101.com/article.cfm/writing_rubrics_for_meaningful_assessment#ixzz0X2aM0aXf
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A rubric is a scoring guide. It organizes criteria that describe what students need to complete for an assignment, and it measures the levels of proficiency of student work. Rubrics can be used in any content area. They are time consuming to create, but they allow students and parents to know exactly how a teacher will grade an assignment.
Read more: http://teaching-strategies-mentorship.suite101.com/article.cfm/rubrics_in_the_classroom#ixzz0X2aC33SZ
Convenio de derechos y deberes de los intelectuales académicos
Octubre 8, 2009 — Nelson PiedraA propósito de cómo criar y matar la gallina de los huevos de oro [cuentos, 1,2], de ser intolerante con la contracultura, los charlatanes y la cultura de la falsificación, el siguiente convenio de derechos y deberes a tener en cuenta:
1. Cada académico tiene el deber de buscar la verdad, y tiene el derecho de enseñarla.
2. Cada académico tiene el derecho y el deber de preguntar algo que le interese, percatado de que él lo hace de una manera racional.
3. Cada académico tiene el derecho de cometer errores, y el deber de corregirlos al notarlos.
4. Cada académico tiene el deber de desenmascarar públicamente los engaños, sean populares o académicos.
5. Cada académico tiene el deber de expresarse en la forma más clara posible.
6. Cada académico tiene el derecho de discutir cualquier punto de vista no ortodoxo que le interese, proveído que esos puntos de vista sean lo suficientemente claros como para ser discutidos racionalmente.
7. Ningún académico tiene el derecho de presentar como verdaderas aquellas ideas que él no pueda justificar en términos de la razón y la experiencia.
8. Nadie tiene el derecho de comprometerse a sabiendas en cualquier industria académica.
9. Cada cuerpo académico tiene el deber de adoptar y reforzar los estándares más rigurosos conocidos de escolaridad y aprendizaje.
10. Cada cuerpo académico tiene el deber de ser intolerante tanto hacia la contracultura como hacia la cultura de la falsificación.
Fuente: Bunge, Mario. Charlatanism in Academia. Annals of the New York Academy of Sciences, Volume 775. The Flight from Science and Reason; pp. 110-111; New York, NY, 1996).
¿qué lobo alimentaré?
Septiembre 25, 2009 — Nelson PiedraTiempo atrás conocí sobre un cuento cherokee con el que inmediatamente identifiqué mis caminatas y puntos de bifurcación más íntimos: los que he vivido, los que están y los de después.
Comparto el cuento como si fuese una botella al mar:
lobo visto en la capilla sixtina - Roma
Un anciano Cherokee contaba a su nieto acerca de la lucha que se desarrollaba dentro de sí mismo. Ésta era entre dos lobos…
Uno es diabólico: iracundo, lujurioso, arrogante, mentiroso, falso predicador, vanidoso, resentido, ladrón, abusador y asesino.
El otro es bueno: pacífico, amoroso, sereno, humilde, generoso, compasivo, fiel, bondadoso, benevolente y honesto”.
El nieto, después de unos minutos de reflexión, preguntó a su abuelo: “¿Y qué lobo ganará?”
El anciano Cherokee simplemente respondió:
“El que yo alimente”.(Cuento Cherokee)
Nunca más – Segunda Guerra Mundial, 70 años del inicio del horror
Septiembre 2, 2009 — Nelson PiedraLa II Guerra Mundial empezó a las 4.45 de la mañana del 1 de septiembre de 1939, cuando el acorazado Schleswig Holstein de la Armada de la Alemania nazi bombardeó posiciones polacas en la península de Westerplatte, cerca de la entonces Danzig, hoy Gdansk. Al mismo tiempo, el ejército alemán invadía por tierra el país. Dos días después, Reino Unido y Francia declaraban la guerra a la Alemania nazi de Adolf Hitler.
La II Guerra Mundial estaba en marcha, el conflicto bélico más sangriento de la Historia y con este el Holocausto: el asesinato de seis millones de judios y cinco millones de aquellos que el Asesino Loco percibía que eran enemigos de esa raza aria, una raza supuestamente superior con la que soñaba: gitanos, discapacitados, enfermos, viejos, homosexuales.
Los que obedecieron al Asesino Loco, empezaron marcándolos, segregándolos del mundo en guetos, luego separándoles de sus familias y sometiéndoles a la miseria, para finalmente -a los que no murieron fusilados o enfermos- embarcarlos en vagones y vagones con destino a los campos de la muerte, donde se cumplió la operación ’Aktion Reinhard‘, y …. la ‘Solución Final’.
Entrada principal al campo de exterminio de Auschwitz-Birkenau. National Museum of American Jewish History, Philadelphia
Además del Asesino Loco, y los ciegos que le obedecieron, hubo un montón de personas que trataron de evitarlo, que tendieron pan y abrazos.
Pienso que los seres humanos queremos ayudar, queremos hacer felices a los demás, queremos vivir, reír, amar … pero hemos perdido el camino por la codicia y nos hemos vuelto ciegos, secos, cínicos, agrios y duros.
Cuando los progresos científicos solo alimentan la máquina, los que la controlan se vuelven soberbios y amargados, y llegan a cometer actos miserables, esclavizan a sus hermanos, matan sus sueños, asesinan la carne y el alma.
No a la máquina que nos ve como piezas. No a los dictadores, el poder absoluto los enloquece. No a los fascistas. No a obedecer a los que nos esclavizan. No a quienes nos quieren convencer que la tierra no tiene riqueza suficiente para alimentarnos a todos. No a obedecer a quien nos dice que asesinar al otro es bueno, no estamos obligados a seguir instrucciones de quien nos hace menos humanos.
The Pianist ending (Chopin Grande Polonaise Brillante op.22)
No a perder la esperanza cuando un dictador nos tiene sometidos, nada es eterno, recordemos que hasta el dictador más duro pasa y que la libertad que arrebató a los niños, mujeres y hombres le será devuelto al pueblo.
links for 2009-06-20
Junio 20, 2009 — Nelson Piedra-
INTERTECH 2008 – X International Conference on Engineering and Technology Education
The New Technologies for the Engineering and Technology Education
March 02-05, 2008 Peruíbe, BrazilTECHNICALSESSIONS / Session EW3A
Chairs Edmundo Tovar / Mathias Fonkam
ATECHNOLOGICALFRAMEWORK APPLIED TO ENGINEERING ACADEMIC AND RESEARCH NETWORKS
Edmundo Tovar, Nelson Piedra, Janneth Chicaiza , José CarrilloThe current state of the web technologies allow the development successful of academic collaborative networks
focused on the research. This paper proposes a framework that satisfies the work requirements of engineering academic and researchers teams located in different geographical areas. Aweb site integrates all the technologies selected. Specific tasks as the communication, contents management, or links management can be solved in collaborative way with the application of the web technologies selected. This framework can be applied in master or doctoral studies that follow .. -
Proceedings of the 4th ACM EATIS annual international conference on Telematics and Informatics:
New Opportunities to increase Digital Citizenship
2009, Prague, The Czech Republic
EATIS ‘09
Conference Chair: Prof. Miroslav Svitek
Program Chair: Dr. Tomas Zelinka -
Piedra, N., Chicaiza, J., López, J., Tovar, E., and Martínez, O. 2009. Open educational practices and resources based on social software, UTPL experience. In Proceedings of the 2009 Euro American Conference on Telematics and information Systems: New Opportunities To increase Digital Citizenship (Prague, Czech Republic, June 03 – 05, 2009). EATIS '09. ACM, New York, NY, 1-8. DOI= http://doi.acm.org/10.1145/1551722.1551756
ABSTRACT
Open Educational Practices and Resources are a direct response to privatization of knowledge; they promote their exchange across the world with the aim of increasing human intellectual capacity. In this document we will discuss the Open Educational Practices and Resources Movement and the notion that knowledge is a public good where technology in general, and specifically Web 2.0, provide an extraordinary opportunity for people to acquire key competences in a knowledge society while they share, use, and re-use digital contents…. -
CALL FOR PAPERS – Special Issue on Multidisciplinary Applications and Future Trends of Learning Objects
Summary
One aspect of e-learning current receiving considerable attention is the Learning Object, i.e., an entity of learning capable of being reused in different instructional situations. Therefore, Learning Objects are fundamental elements of a new conceptual model for content creation and distribution. As a result, Learning Objects are one of the most significant promises in order to increase and improve the effectiveness of learning process. -
STUDY OF THE APPLICATION OF NEURAL NETWORKS
IN INTERNET TRAFFIC ENGINEERING
Nelson Piedra, Janneth Chicaiza, Jorge López, Jesús García
Abstract: In this study, we showed various approachs implemented in Artificial Neural Networks for network
resources management and Internet congestion control. Through a training process, Neural Networks can
determine nonlinear relationships in a data set by associating the corresponding outputs to input patterns.
Therefore, the application of these networks to Traffic Engineering can help achieve its general objective:
“intelligent” agents or systems capable of adapting dataflow according to available resources. In this article, we
analyze the opportunity and feasibility to apply Artificial Neural Networks to a number of tasks related to Traffic
Engineering. In previous sections, we present the basics of each one of these disciplines, which are associated to
Artificial Intelligence and Computer Networks respectively. -
Intenational Book Series
INFORMATION SCIENCE AND COMPUTING
BOOK 2
Advanced Research in Artificial IntelligenceTable of Contents
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International Book Series “INFORMATION SCIENCE & COMPUTING”, Number 2
Supplement to the International Journal “INFORMATION TECHNOLOGIES & KNOWLEDGE” Volume 2, 2008
Edited by Institute of Information Theories and Applications FOI ITHEA, Bulgaria,
in collaboration with
- V.M.Glushkov Institute of Cybernetics of NAS, Ukraine,
- Institute of Mathematics and Informatics, BAS, Bulgaria,
- Institute of Information Technologies, BAS, Bulgaria. -
Evaluación de la Arquitectura Grid Computing En Base a la Ejecución de una Aplicación Paralela. Por: N. Piedra, M. Cabrera y M. Valarezo. Departamento de Bioinformatica, Universidad Tecnica Particular de Loja, Ecuador.
Grid Computing y su aplicabilidad en Bio Informática. Por: N. Piedra, C. Panamito y F. Vargas. Departamento de Bioinformatica, Universidad Tecnica Particular de Loja, Ecuado -
La CONFERENCIA LATINOAMERICANA DE COMPUTACIÓN DE ALTO RENDIMIENTO (CLCAR 2007) busca ofrecer un espacio de presentación del estado del arte en el desarrollo de sistemas de alto rendimiento paralelos y distribuidos en un contexto mundial, pero enfatizando en los desarrollos y proyectos latinoamericanos.
links for 2009-05-22
Mayo 22, 2009 — Nelson Piedra-
MrBayes is a program for the Bayesian estimation of phylogeny. Bayesian inference of phylogeny is based upon a quantity called the posterior probability distribution of trees, which is the probability of a tree conditioned on the observations. The conditioning is accomplished using Bayes's theorem. The posterior probability distribution of trees is impossible to calculate analytically; instead, MrBayes uses a simulation technique called Markov chain Monte Carlo (or MCMC) to approximate the posterior probabilities of trees.
The program takes as input a character matrix in a NEXUS file format. The output is several files with the parameters that were sampled by the MCMC algorithm. MrBayes can summarize the information in these files for the user. The program features include:
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Welcome to MrWiki, the MrBayes Wiki
Topics:
* MrBayes 3.1 Manual
* Frequently Asked Questions
* Why a wiki -
MrBayes 3.1 Manual
Fredrik Ronquist, John P. Huelsenbeck, and Paul van der Mark
School of Computational Science
Florida State University -
MrBayes on Biowulf
MrBayes is a program for the Bayesian estimation of phylogeny. Bayesian inference of phylogeny is based upon a quantity called the posterior probability distribution of trees, which is the probability of a tree conditioned on the observations. The conditioning is accomplished using Bayes's theorem. The posterior probability distribution of trees is impossible to calculate analytically; instead, MrBayes uses a simulation technique called Markov chain Monte Carlo (or MCMC) to approximate the posterior probabilities of trees.
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100 Zapatitos
Loxa Bloggers 2007
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CC
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