Learning & Mind &...
Follow
Find
17.3K views | +16 today
 
Rescooped by Miloš Bajčetić from Didactics and Technology in Education
onto Learning & Mind & Brain
Scoop.it!

A Pedagogical Framework For Digital Tools

A Pedagogical Framework For Digital Tools | Learning & Mind & Brain | Scoop.it
We've needed a strong pedagogical framework for digital tools since the introduction of technology into education. Hopefully this helps.

Via Ana Cristina Pratas, Louise Robinson-Lay, Ken Morrison, Lynnette Van Dyke, Rui Guimarães Lima
Miloš Bajčetić's insight:

The monological form of teaching – Learning is the student's acquisition of this knowledge.Tools – distributing and intermediary tools.

 

The dialogical form of teaching – Learning is seen as the student's development of this inherent basis of knowledge. Tools that support students' problem oriented; simulations and more advanced learning games.

 

The polyphonic form of teaching – Learning is the student's participation in exchange of many different individuals' perception of the world.

Tools that support equal collaboration

 

more...
Louise Robinson-Lay's comment, December 23, 2012 8:26 PM
Thank you, we all need to move between frameworks.
Dolly Bhasin 's curator insight, December 27, 2012 3:10 AM

The framework is based on a distinction between a monological, a dialogical, and a polyphonic form of teaching. The three forms of teaching can be distinguished by their different perceptions of how learning takes place, and by their different perceptions of the relations between subject matter, teacher and student. By considering which form of teaching one wants to practice, one may, on the basis of the pedagogical framework, assess whether it would be appropriate to use a specific tool in teaching.

Alfredo Corell's curator insight, December 27, 2012 6:44 PM

changing among 4 different frameworks - interesting and short reading

From around the web

Learning & Mind & Brain
About Online Learning
Your new post is loading...
Your new post is loading...
Scooped by Miloš Bajčetić
Scoop.it!

Ken Robinson: How to escape education's death valley | Video on TED.com

Sir Ken Robinson outlines 3 principles crucial for the human mind to flourish -- and how current education culture works against them. In a funny, stirring talk he tells us how to get out of the educational "death valley" we now face, and how to nurture our youngest generations with a climate of possibility.

 

Creativity expert Sir Ken Robinson challenges the way we're educating our children. He champions a radical rethink of our school systems, to cultivate creativity and acknowledge multiple types of intelligence

 

 

Miloš Bajčetić's insight:

“The real role of leadership in education … is not and should not be command and control. The real role of leadership is climate control, creating a climate of possibility.”

 

Great Talk!

more...
Tatiana Kuzmina's curator insight, September 7, 2013 2:58 PM

Worth watching..

Laurent Picard's curator insight, January 22, 2014 12:22 PM

Une vidéo trés intéressante (et amusante) où Ken Robinson parle du système éducatif américain. Mais ses propos s'appliquent aussi au notre...

Rescooped by Miloš Bajčetić from The future of medicine and health
Scoop.it!

Stress Makes Your Brain Stronger: Try Fasting

Stress Makes Your Brain Stronger: Try Fasting | Learning & Mind & Brain | Scoop.it
Mark Mattson is a scientist at the National Institute of Aging and a professor at Johns Hopkins Medical who is also has been a practitioner of caloric restriction and intermittent fasting. In the July issue, he explains in his article “What Doesn’t Kill You…” how low-level exposure to toxic chemicals in plants may provide some of the same mild stresses on brain cells as do fasting and caloric restriction—stresses that actually help protect neurons. In a TED talk, he also explains the benefits of fasting on the brain:

Via Wildcat2030
more...
No comment yet.
Scooped by Miloš Bajčetić
Scoop.it!

Top 5 Adult Learning Principles

Top 5 Adult Learning Principles | Learning & Mind & Brain | Scoop.it
In theory, adult learners seem somewhat rebellious: we don’t like being told what to do, we want to do things in our own time, and it better be worth it or we’re not interested! But it’s not because we’ve all reached rock-star status, it’s got to do with the way adults are hardwired to approach education. Thank goodness for adult learning principles that provide insight into how to please mature learners who know what they want.
more...
No comment yet.
Rescooped by Miloš Bajčetić from Learning with MOOCs
Scoop.it!

MIT Researchers Develop Model To Predict MOOC Dropouts - Campus Technology

MIT Researchers Develop Model To Predict MOOC Dropouts - Campus Technology | Learning & Mind & Brain | Scoop.it
Researchers from the Massachusetts Institute of Technology have developed a model that aims to predict when students will drop out of a MOOC.

Via SusanBat
more...
No comment yet.
Rescooped by Miloš Bajčetić from Edtech and assessment
Scoop.it!

Universities must prove they are excellent at teaching, minister says

Universities must prove they are excellent at teaching, minister says | Learning & Mind & Brain | Scoop.it
An national audit of the teaching offered at universities will provide more information to future students and help drive up standards

Via Julie Tardy
more...
No comment yet.
Rescooped by Miloš Bajčetić from Effective Education
Scoop.it!

[PDF] Social Learning and the Future of Work

[PDF] Social Learning and the Future of Work | Learning & Mind & Brain | Scoop.it

In study after study, corporate education experts have found that between 70 to 90 percent of all workplace learning happens informally — from knowledge sharing and mentorship among project team members to casual break-room chats. Moreover, in an ongoing informal survey of thousands of participants worldwide, the Centre for Learning & Performance Technologies consistently finds that respondents value informal workplace learning experiences far more than they do corporate training and eLearning, with 87 percent identifying social knowledge sharing among team members to be “essential” and only 37 percent perceiving formal company training to be similarly vital.


Via Edumorfosis, Alma Vega, Mark E. Deschaine, PhD
more...
No comment yet.
Rescooped by Miloš Bajčetić from Teaching in Higher Education
Scoop.it!

Piazza • Ask. Answer. Explore. Whenever.

Piazza • Ask. Answer. Explore. Whenever. | Learning & Mind & Brain | Scoop.it
With Piazza, easily answer questions, manage course materials, and track student participation. It'll save you time, and your students will love using it. It's free, and easy to get started.

Via Rosemary Tyrrell
more...
Rosemary Tyrrell's curator insight, July 1, 12:59 AM

Integrates with all major learning management systems. FERPA compliant. 

Rescooped by Miloš Bajčetić from E-Learning and Online Teaching
Scoop.it!

Explore what careers are right for you – About - – eParachute

Explore what careers are right for you – About -  – eParachute | Learning & Mind & Brain | Scoop.it
Are you a recent graduate searching for what to do with your education? Or a career-changer wondering where else you could go with your hard-earned skills? Or a job-hunter who just doesn't like the options in front of you?

Dream up your next career with eParachute:

Discover your most loved strengths,
Explore hundreds of potential career paths, and
See how well careers match what you love to do most.

Inspired by the best-selling career guide of all time.

Via Dennis T OConnor
more...
Dennis T OConnor's curator insight, June 20, 7:27 PM

This is the 21st Century version of the classic job search book: What Color is Your Parachute.

Rescooped by Miloš Bajčetić from TRENDS IN HIGHER EDUCATION
Scoop.it!

Blended learning emerges as a leading trend in education technology

Blended learning emerges as a leading trend in education technology | Learning & Mind & Brain | Scoop.it

The annual New Media Consortium Horizon Report’s K-12 2015 Edition, that provides insight into digital learning trends, named blended learning as a key topic to watch in the next two years. The trends included in the report were selected by 56 experts from 22 countries.Two teaching and learning trends expected to accelerate the use of educational technology in classrooms in a year or two, the report said, were the use of blended learning and STEAM (an acronym for science, technology, engineering, arts and math) education.Sometimes called hybrid learning, blended learning enables educators to pursue a variety of instructional models. Ideally, the technology allows the teacher to make the most of face-to-face time with students, leaving some more routine learning tasks to the computer. 


Via Alberto Acereda, Ph.D.
more...
Tony Guzman's curator insight, July 1, 9:25 AM

Latest report from NMC for K-12 sector shows that blended learning is the leading trend in educational technology.

Scooped by Miloš Bajčetić
Scoop.it!

Is It Time to Give Up on Computers in Schools? - Hybrid Pedagogy

Is It Time to Give Up on Computers in Schools? - Hybrid Pedagogy | Learning & Mind & Brain | Scoop.it
Little by little the subversive features of the computer were eroded away: Instead of cutting across and so challenging the very idea of subject boundaries, the computer now defined a new subject; instead of changing the emphasis from impersonal curriculum to excited live exploration by students, the computer was now used to reinforce School’s ways. What had started as a subversive instrument of change was neutralized by the system and converted into an instrument of consolidation.
more...
No comment yet.
Rescooped by Miloš Bajčetić from Effective Education
Scoop.it!

Apple, IBM Partner for Student Analytics App

Apple, IBM Partner for Student Analytics App | Learning & Mind & Brain | Scoop.it
Apple and IBM have joined forces to create an app that would help teachers measure student progress in real-time.

Via EDTECH@UTRGV, Mark E. Deschaine, PhD
more...
No comment yet.
Rescooped by Miloš Bajčetić from Effective Education
Scoop.it!

One-Minute Papers: A Way to Further Design Thinking

One-Minute Papers: A Way to Further Design Thinking | Learning & Mind & Brain | Scoop.it
Guest blogger Ashley Nahornick, a Doctorate of Education Candidate at Teachers College Columbia, offers a one-minute strategy for introducing teachers and students to the mindset of design thinking.

Via Sharrock, Mark E. Deschaine, PhD, Julie Tardy
more...
No comment yet.
Scooped by Miloš Bajčetić
Scoop.it!

9 Tips To Enhance Active Listening Skills In eLearning

9 Tips To Enhance Active Listening Skills In eLearning | Learning & Mind & Brain | Scoop.it
“I have learned a great deal from listening carefully. Most people never listen.”, Ernest Hemingway once said. More than a half-century later, little has changed; indeed, most people don’t listen, despite listening being one of the most important human skills. The way we listen can have a major impact not only on our personal relationships, but also on our professional lives and job performance.

A good listener has the ability to better understand and process information; a great listener has the ability to use this information to negotiate, influence, and avoid misunderstandings and conflicts. But what does it take to become a great listener? Only one thing, actually: Practicing and improving your active listening skills.

Having active listening skills means that you are able to communicate effectively and create deeper connections with others. Active listening is an essential quality all learners should have, as it can greatly improve their communication skills and help them build strong relationships. In this article, I'll delve into the basics of active listening that every eLearning professional should know in order to develop eLearning courses that enhance learners' active listening skills, so that you will be able to help your learners to engage both mentally and emotionally in every conversation, and achieve long-term success in their personal and professional lives.
more...
No comment yet.
Rescooped by Miloš Bajčetić from Quality assurance of eLearning
Scoop.it!

Twin policies risk a rebirth of dual system, warn sector figures

Twin policies risk a rebirth of dual system, warn sector figures | Learning & Mind & Brain | Scoop.it
Universities face having to navigate two quality frameworks as Jo Johnson makes teaching excellence framework a priority amid Hefce reforms

 

Introducing a teaching excellence framework alongside a new quality assurance method may create a dual system of quality checks and audits, senior sector figures have warned.

 

In his first major policy speech as universities and science minister, Jo Johnson said that his priority is to “make sure students get the teaching they deserve…by introducing the teaching excellence framework we promised in our manifesto”.

 

...

 

However, it remains unclear how plans for the TEF will fit with proposed changes to the quality assurance landscape unveiled by the Higher Education Funding Council for England on 29 June.

 

Under these proposals, universities will no longer face regular institutional reviews from the Quality Assurance Agency every six years – with governing bodies instead required to vouch for academic standards, while Hefce monitors trends in student outcomes, such as student satisfaction scores.


Via Harvey Mellar
more...
No comment yet.
Scooped by Miloš Bajčetić
Scoop.it!

Virtual Debate: 7 Advantages of Online Discussions

Virtual Debate: 7 Advantages of Online Discussions | Learning & Mind & Brain | Scoop.it
The ideas “online” and “discussion” seems an oxymoron to many, that engagement in discussion can occur with participants removed in time and place.

How to facilitate such discussions is confusing to many teachers, and online discussion threads and chatrooms may be seen as a poor substitute for the “real” thing, an evil necessity of the online class. However, although there are some barriers such as its more decontextualized nature, in comparison to face-to-face discussion, there are advantages that are unique to the online discussion that can be built on by the instructor while the drawbacks are minimized.
more...
No comment yet.
Rescooped by Miloš Bajčetić from Effective Education
Scoop.it!

Why are so many turning away from teaching? Big win for reformers!

Why are so many turning away from teaching?  Big win for reformers! | Learning & Mind & Brain | Scoop.it
(District of Columbia) In what may prove to be another national socioeconomic trend with roots in California, education planners in a number of states are looking with alarm at the sudden drop of college students entering the teaching profession.

Via Mel Riddile, Mark E. Deschaine, PhD
more...
Mel Riddile's curator insight, July 1, 5:38 PM

Reformist mantras regarding...

  1. "failing schools"
  2. 'fire our way to Finland'
  3. ABC (AnyBody Can) Teach
  4. an end to teacher tenure


...have achieved their desired outcomes--fewer college students see becoming a teacher as a viable career path.

Rescooped by Miloš Bajčetić from Learning with MOOCs
Scoop.it!

Who studies MOOCs? Interdisciplinarity in MOOC research and its changes over time

Who studies MOOCs? Interdisciplinarity in MOOC research and its changes over time | Learning & Mind & Brain | Scoop.it

Abstract:

The complexity of digital and online education is becoming increasingly evident in the context of research into networked learning/participation. Interdisciplinary research is often proposed as a way to address complex scientific problems and enable researchers to bring novel perspectives into a field other than their own. The degree to which research on Massive Open Online Courses (MOOCs) is interdisciplinary is unknown. We apply descriptive and inferential statistics to bibliometric data to investigate interdisciplinarity in MOOC research. Results show that MOOC research published in 2013-2015 was (a) mostly conducted by researchers affiliated with Education and Computer Science disciplines, (b) far from monolithic, (c) had a greater representation of authors from Computer Science than in the past, and (d) showed a trend toward being more interdisciplinary than MOOC research published in 2008-2012. Our results also suggest that empirical research on xMOOCs may be more interdisciplinary than research on cMOOCs. Greater interdisciplinarity in xMOOC research could reflect the burgeoning interest in the field, the general familiarity with the xMOOC pedagogical model, and the hype experienced by xMOOCs. Greater interdisciplinarity in the field may also provide researchers with rich opportunities to improve our understanding and practice of digital and online learning.


Via Kim Flintoff, Peter Mellow
more...
ECO Project EU's curator insight, Today, 9:59 AM

xMOOC research shows more interdisciplinarity than cMOOC's. What do you make of it?

Rescooped by Miloš Bajčetić from Quality assurance of eLearning
Scoop.it!

7th Annual Conference on Quality Assurance in Online Learning | Quality Matters

7th Annual Conference on Quality Assurance in Online Learning | Quality Matters | Learning & Mind & Brain | Scoop.it

Conference Dates: November 1-4, 2015

Early Bird Registration: through August 7, 2015

Location: San Antonio Marriott Rivercenter, 101 Bowie Street, San Antonio,

 

The 7th Annual QM Conference features inspired discussions and the sharing of best practices. The QM community collaborates to shape education's future. This conference is a place to learn, connect, and share. Together, we are continuously improving experiences for learners.

Here's a sneak peek at what's in store for this year's event. We'll add presentation sessions, pre-conference workshops, and other information here in the months leading up to the conference; please check back for updates. You can also sign up for e-mail communications related to the conference.


Via Harvey Mellar
more...
No comment yet.
Scooped by Miloš Bajčetić
Scoop.it!

Hand-picked Resources to Help You Become an Instructional Designer

Hand-picked Resources to Help You Become an Instructional Designer | Learning & Mind & Brain | Scoop.it
With the coming of the Internet, gathering information on almost everything under the sun has become easier than ever before. Just type a few words and Google will throw up tons of information. For instance, there seems to be as many web pages on instructional designing strategies and Photoshop tutorials as there are eLearning designers.

But there's a catch. You still have to click open the websites, scroll through them, and read up pages of text to fish out information that is relevant to your needs. It is easy to get lost in the minefield of information that the Internet is. What is scarier is that not all websites house authentic information. So how can you find what you are searching for quickly and easily? How do you make sure that you learn instructional designing theories and skills only from authentic sources?

We have put together a list of Web resources to help you get hold of the most comprehensive and authentic sources of information on eLearning and instructional design. Here they are:
more...
No comment yet.
Rescooped by Miloš Bajčetić from Amazing Science
Scoop.it!

Broad Institute, Google Genomics combine bioinformatics and computing expertise

Broad Institute, Google Genomics combine bioinformatics and computing expertise | Learning & Mind & Brain | Scoop.it

Broad Institute of MIT and Harvard is teaming up with Google Genomics to explore how to break down major technical barriers that increasingly hinder biomedical research by addressing the need for computing infrastructure to store and process enormous datasets, and by creating tools to analyze such data and unravel long-standing mysteries about human health.

As a first step, Broad Institute’s Genome Analysis Toolkit, or GATK, will be offered as a service on the Google Cloud Platform, as part of Google Genomics. The goal is to enable any genomic researcher to upload, store, and analyze data in a cloud-based environment that combines the Broad Institute’s best-in-class genomic analysis tools with the scale and computing power of Google.

GATK is a software package developed at the Broad Institute to analyze high-throughput genomic sequencing data. GATK offers a wide variety of analysis tools, with a primary focus on genetic variant discovery and genotyping as well as a strong emphasis on data quality assurance. Its robust architecture, powerful processing engine, and high-performance computing features make it capable of taking on projects of any size.

GATK is already available for download at no cost to academic and non-profit users. In addition, business users can license GATK from the Broad. To date, more than 20,000 users have processed genomic data using GATK.

The Google Genomics service will provide researchers with a powerful, additional way to use GATK. Researchers will be able to upload genetic data and run GATK-powered analyses on Google Cloud Platform, and may use GATK to analyze genetic data already available for research via Google Genomics. GATK as a service will make best-practice genomic analysis readily available to researchers who don’t have access to the dedicated compute infrastructure and engineering teams required for analyzing genomic data at scale. An initial alpha release of the GATK service will be made available to a limited set of users.

“Large-scale genomic information is accelerating scientific progress in cancer, diabetes, psychiatric disorders, and many other diseases,” said Eric Lander, President and Director of Broad Institute. “Storing, analyzing, and managing these data is becoming a critical challenge for biomedical researchers. We are excited to work with Google’s talented and experienced engineers to develop ways to empower researchers around the world by making it easier to access and use genomic information.”


Via Dr. Stefan Gruenwald
more...
No comment yet.
Rescooped by Miloš Bajčetić from Effective Education
Scoop.it!

One Word Determines Your Personality

One Word Determines Your Personality | Learning & Mind & Brain | Scoop.it
The famous line in the movie Jerry McGuire states "You had me at hello" is more accurate than you think.  In a study conducted by University of Glasgow in Scotland, professor  Phil McAleer, had a group of people record their voices reading the same paragraph.  Then he extracted the word "Hello" from each of their voices and asked over 300 volunteers to determine 10 different personality traits, such as trustworthiness, aggressiveness, confidence, dominance and warmth.What he found was that the group as a whole, agreed on almost all of the personali

Via Karen Bowden, Mark E. Deschaine, PhD
more...
SageRave of Get Custom Content's curator insight, June 30, 6:17 PM

Let's hope it's the right word!

Scooped by Miloš Bajčetić
Scoop.it!

Is It Time to Give Up on Computers in Schools?

Is It Time to Give Up on Computers in Schools? | Learning & Mind & Brain | Scoop.it
Perhaps, once upon a time, we could believe ed-tech would change things. But as Seymour Papert noted in The Children’s Machine,

Little by little the subversive features of the computer were eroded away: … the computer was now used to reinforce School’s ways. What had started as a subversive instrument of change was neutralized by the system and converted into an instrument of consolidation.

I think we were naive when we ever thought otherwise.

Sure, there are subversive features, but I think the computers also involve neoliberalism, imperialism, libertarianism, and environmental destruction. They now involve high stakes investment by the global 1% – it’s going to be a $60 billion market by 2018, we’re told. Computers are implicated in the systematic de-funding and dismantling of a public school system and a devaluation of human labor. They involve the consolidation of corporate and governmental power. They involve scientific management. They are designed by white men for white men. They re-inscribe inequality.

And so I think it’s time now to recognize that if we want education that is more just and more equitable and more sustainable, that we need to get the ideologies that are hardwired into computers out of the classroom.

In the early days of educational computing, it was often up to innovative, progressive teachers to put a personal computer in their classroom, even paying for the computer out of their own pocket. These were days of experimentation, and as Seymour teaches us, a re-imagining of what these powerful machines could enable students to do.

And then came the network and, again, the mainframe.

You’ll often hear the Internet hailed as one of the greatest inventions of mankind – something that connects us all and that has, thanks to the World Wide Web, enabled the publishing and sharing of ideas at an unprecedented pace and scale.

What “the network” introduced in educational technology was also a more centralized control of computers. No longer was it up to the individual teacher to have a computer in her classroom. It was up to the district, the Central Office, IT. The sorts of hardware and software that was purchased had to meet those needs – the needs and the desire of the administration, not the needs and the desires of innovative educators, and certainly not the needs and desires of students.

The mainframe never went away. And now, virtualized, we call it “the cloud.”
more...
No comment yet.
Rescooped by Miloš Bajčetić from Into the Driver's Seat
Scoop.it!

Screencastify (Screen Video Recorder)

Screencastify (Screen Video Recorder) | Learning & Mind & Brain | Scoop.it

"Screencastify is a simple video screen capture software (aka. screencast recorder) for Chrome. It is able to record all screen activity inside a tab, including audio. Just press record and the content of your tab is recorded. So you can easily create a screencast for video tutorials, record presentations etc. It also supports desktop capturing, allowing you to record anything on your screen (not just tabs)."


Via Jim Lerman
more...
No comment yet.
Rescooped by Miloš Bajčetić from Quality and benchmarking in open learning, OER and UGC
Scoop.it!

MOOCs and Open Education Around the World

MOOCs and Open Education Around the World | Learning & Mind & Brain | Scoop.it
As new digital forms of formal and informal learning proliferate, there is an increasing need to better understand how people in different regions of the world are implementing massive open online courses (MOOCs) and other forms of open educational resources (OERs). Educators, researchers, politicians, and numerous other stakeholders want to grasp what the outcomes of these initiatives are and how they can be improved. Ongoing e-learning developments related to both technology and pedagogy have pushed institutions and organizations to grapple with issues of accreditation, credentialing, quality standards, innovative assessment, and learner motivation and attrition, among other areas of concern. In response, MOOCs and Open Education Around the World explores and illuminates unique implementations of MOOCs and open education across regions and nations. The book also focuses on the various opportunities as well as the dilemmas presented in this rapidly evolving age of technology-enabled learning. What are the different delivery formats, interaction possibilities, assessment schemes, and business models? What are the key controversies or issues that must be discussed and addressed? This edited collection explains MOOCs and open education trends and issues in a variety of contexts, shares key research findings, and provides practical suggestions and recommendations for the near future.

Via Ebba Ossiannilsson
more...
No comment yet.
Scooped by Miloš Bajčetić
Scoop.it!

How long should the elearning video be for my online course?

How long should the elearning video be for my online course? | Learning & Mind & Brain | Scoop.it

Making a video for your online course? Here’s some quick tips about how long your elearning video should be and how to structure the video for your online course.

The number one top tip for elearning video is to make it short and snappy. If your video is looking more like a television miniseries you are going to have to rethink what you are doing.

Why? People get distracted and loose concentration very easily. Video can be passive, sitting still and watching requires a lot of concentration and effort in order for your learners to easily learn the lesson objective. Make the video short and follow up with an activity for some more ‘hands on’ learning.

Short videos are more ‘digestable’. A 20 minute video that covers many different ideas becomes difficult for the learner to manage. Some people may want to stop and write down information or ideas, others may want to come back to a point. If you make the videos shorter it enables people to learn at their own pace and use tools they find helps their learning.

Use ONE learning outcome/objective/focus point per video. Some videos end up being one minute long, others 5 minutes, but the learner can pace themselves and digest that one main point that you want them to take away. Follow up with a discussion, reference to other material, quiz, or any type of crazy activity.

You can put a chunk of related videos together. Just make a series of short videos rather than one long video.

Make the videos more or less predictable BUT NOT BORING. Spice the content up but still introduce and summarize. Use all your learning tools in regards to presenting content in different ways and using questions and suggestions. DO NOT make every single video you talking to a camera.

The first thing most people do when they open the video is look at how long it is and decide if they want to commit that time. They haven’t even looked at the content yet! Make it short, snappy and people will be more likely to sit down and watch four 5 minute videos than one 20 minute video.

more...
No comment yet.
Rescooped by Miloš Bajčetić from Amazing Science
Scoop.it!

With deep learning and dimensionality reduction, we can visualize the entirety of Wikipedia?

With deep learning and dimensionality reduction, we can visualize the entirety of Wikipedia? | Learning & Mind & Brain | Scoop.it

Deep neural networks are an approach to machine learning that has revolutionized computer vision and speech recognition in the last few years, blowing the previous state of the art results out of the water. They’ve also brought promising results to many other areas, including language understanding and machine translation. Despite this, it remains challenging to understand what, exactly, these networks are doing.


Understanding neural networks is just scratching the surface, however, because understanding the network is fundamentally tied to understanding the data it operates on. The combination of neural networks and dimensionality reduction turns out to be a very interesting tool for visualizing high-dimensional data – a much more powerful tool than dimensionality reduction on its own.


Paragraph vectors, introduced by Le & Mikolov (2014), are vectors that represent chunks of text. Paragraph vectors come in a few variations but the simplest one, which we are using here, is basically some really nice features on top of a bag of words representation.


With word embeddings, we learn vectors in order to solve a language task involving the word. With paragraph vectors, we learn vectors in order to predict which words are in a paragraph.


Concretely, the neural network learns a low-dimensional approximation of word statistics for different paragraphs. In the hidden representation of this neural network, we get vectors representing each paragraph. These vectors have nice properties, in particular that similar paragraphs are close together.


Now, Google has some pretty awesome people. Andrew Dai, Quoc Le, and Greg Corrado decided to create paragraph vectors for some very interesting data sets. One of those was Wikipedia, creating a vector for every English Wikipedia article. The result is that we get a visualization of the entirety of Wikipedia. A map of Wikipedia. A large fraction of Wikipedia’s articles fall into a few broad topics: sports, music (songs and albums), films, species, and science.


Via Dr. Stefan Gruenwald
more...
Tom Vandermolen's curator insight, July 1, 1:12 AM

Another great machine learning/semantics tool.  We're getting closer, and it feels like all of these different techniques are homing in on *something* from different directions.