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Barbara Lindsey

If San Francisco Crime were Elevation | Doug McCune - 0 views

  • Really nice. Be great to see the two combined – heatmaps and topography or atleast some kind of colour banding added to the topography. That would open up all kinds of possibilities – you could slice horizontally along the bands and create layers of different ranges. In fact mixing colour and topography would also give you a way of showing two sets of data concurrently – topography for prostitution and some kind of colour banding for wealth for example.
  • Makes the numbers come alive. G
  • Brilliant work! Can you cross this data with the physical typography? I’ve always been curious if safer neighborhoods are uphill.
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  • It would be interesting to pull the data in from previous decades and see how the elevation has changed in different areas.
  • @adrian – it’s just raw totals, grouped geographically. These aren’t scientific by any means, I basically took the underlying pattern and extruded it out and smoothed it a bit to make it look “pretty”. But basically each image is the aggregate numbers for a single year of crime data.
  • @richard – yes, there is some smoothing in effect, which means that the ridge along Shotwell St (for the prostitution map) is indeed a bit smoothed between peaks. That’s not to say that there are only two peaks at Shotwell and 19th and Shotwell and 17th. There are incidents in between as well, but the big peaks at those major intersections does mean that the ridge between them appears higher than the actual incidents along those blocks support. A lot of people have commented on the usefulness of maps like these. I want to stress once again: this was done as an art project much more than a useful visualization. My goal was not to provide useful information that one could act on.
  • “one trick pony. these maps add nothing of value to a standard color plot.” I disagree: allowing for a third dimension of elevation makes the reality of concentration clearer – and half the point of crime mapping is to measure concentration, not simply “intensity.”
  • Great idea and nice work on the graphics, but there are at least three improvements you should make to reveal *true* patterns. Forgive me if you already did these. 1) Availability bias – normalize for population density (i.e. per capita activity) 2) Sampling bias – normalize for the number of cops on the beat (geographic and crime type) 2) Frame bias – break it up by daytime and night time
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    Visual representation of various crime stats from San Francisco
Barbara Lindsey

Steve Hargadon: Web 2.0 Is the Future of Education - 0 views

  • The new Web, or Web 2.0, is a two-way medium, based on contribution, creation, and collaboration--often requiring only access to the Web and a browser.
  • when people ask me the answer to content overload, I tell them (counter-intuitively) that it is to produce more content. Because it is in the act of our becoming a creator that our relationship with content changes, and we become more engaged and more capable at the same time.
  • Imagine an electronic book that allows you to comment on a sentence, paragraph, or section of the book, and see the comments from other readers... to then actually be in an electronic dialog with those other readers. It's coming.
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  • There is no question that historical eras favor certain personalities and types, and the age of the collaborator is here or coming, depending on where you sit. The era of trusted authority (Time magazine, for instance, when I was young) is giving way to an era of transparent and collaborative scholarship (Wikipedia). The expert is giving way to the collaborator, since 1 + 1 truly equals 3 in this realm.
  • The combination of 1) an increased ability to work on specialized topics by gathering teams from around the globe, and 2) the diversity of those collaborators, should bring with it an incredible amount of innovation.
  • That anyone, anywhere in the world, can study using over the material from over 1800 open courses at MIT is astounding, and it's only the start.
  • I believe that the read/write Web, or what we are calling Web 2.0, will culturally, socially, intellectually, and politically have a greater impact than the advent of the printing press
  • a study that showed that one of the strongest determinants of success in higher education is the ability to form or participate in study groups. In the video of his lecture he makes the point that study groups using electronic methods have almost the exact same results as physical study groups. The conclusion is somewhat stunning--electronic collaborative study technologies = success? Maybe not that simple, but the real-life conclusions here may dramatically alter how we view the structure of our educational institutions. JSB says that we move from thinking of knowledge as a "substance" that we transfer from student to teacher, to a social view of learning. Not "I think, therefore I am," but "We participate, therefore we are." From "access to information" to "access to people" (I find this stunning). From "learning about" to "learning to be." His discussions of the "apprenticeship" model of learning and how it's naturally being manifested on the front lines of the Internet (Open Source Software) are not to be missed.
  • "differentiated instruction" a reality that both parents and students will demand.
  • sites that combined several Web 2.0 tools together created the phenomenon of "social networking."
  • From consuming to producing * From authority to transparency * From the expert to the facilitator * From the lecture to the hallway * From "access to information" to "access to people" * From "learning about" to "learning to be" * From passive to passionate learning * From presentation to participation * From publication to conversation * From formal schooling to lifelong learning * From supply-push to demand-pull
  • The Answer to Information Overload Is to Produce More Information.
  • Participate
  • Learn About Web 2.0. I
  • * Lurk.
  • Teach Content Production.
  • * Make Education a Public Discussion.
  • * Help Build the New Playbook.
  • We've spent the last ten years teaching students how to protect themselves from inappropriate content – now we have to teach them to create appropriate content. They may be "digital natives," but their knowledge is surface level, and they desperately need training in real thinking skills. More than any other generation, they live lives that are largely separated from the adults around them, talking and texting on cell phones, and connecting online.
  • Those of you with suggestions of other resources, please post comments linking to them
Barbara Lindsey

Textbooks, E-books, and Online Learning « The Xplanation - 0 views

  • textbooks, with or without the bundled DVDs, are what Judy Baker, of the Community College Consortium for Open Educational Resources, calls “The Hummer of higher education.” Why should we be content with static, rapidly outdated, heavy print textbooks that can cost community college students as much as their tuition, when professors and students can work together to create dynamic, rich-media learning environments instead using free and open source software tools?
Barbara Lindsey

Online version: Open Data, Democracy and Public Sector Reform : Tim's Blog - 0 views

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    Over the weeks since I handed in my MSc Dissertation I've been trying to work out how best to share the final version. Each time I've started to edit it for release I've found more areas where I want to develop the argument further, or where I recognise that points I thought were conclusions are in fact the start of new questions. After trying out a few options, I settled on the fantastic Digress.it platform to put a copy of the report online - giving each paragraph it's own URL and space for comments and trackbacks. Hopefully this can help turn a static dissertation into something more dynamic as a tool for helping take forward thinking about the impacts of open government data. All comments, feedback, reflections and thinking aloud on the document welcome.
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