Showing posts with label openSource. Show all posts
Showing posts with label openSource. Show all posts

February 16, 2012

Another metadata extraction experiment



Several months ago I was comparing how well Mendeley and Zotero reference managers ingested digital content and "spat out" formatted APA citations.

In that first metadata extraction experiment, I used four article PDFs ranging in date from 1989 to 2011. I did not try other resources commonly referred to in graduate study, such as conference proceedings or -- ahem -- books.  (Let's not forget books!)

So, this time I will try a basic webpage (actually, a Flickr image), a conference proceeding from an online database, and a book. For the book, I "grabbed" its data from the Amazon.com web page.

First, I must acknowledge that both Mendeley and Zotero provide multiple avenues for adding content to your library, from "single-click" technology to manual entry, if necessary. I decided to put the single-click option to the test because the functionality of this option is going to make or break the tool, at least in my mind.

When you install Zotero, built-in icons/buttons appear in your browser's location bar. Mendeley provides a web importer button that you can drop-and-drag into your bookmarks toolbar.

So, here we go again.  As in my initial post, I utilized both Mendeley's and Zotero's capability for inserting formatted citations by drag-and-drop technology straight into the text editor of this blog. (The drag-and-drop piece is almost flawless within both applications, but I personally prefer Zotero's split-screen format that integrates with my browser and mimics the iTunes interface.)

For comparison purposes, I added my manually formatted APA citations first, with the Mendeley and Zotero citations following. I changed the text color within citations to indicate deviations from APA or missing information.

Manually formatted APA citations:

Belshaw, D. (2010, Oct. 3). Pragmatism, critical theory and post-structuralism. Retrieved from http://www.flickr.com/photos/dougbelshaw/5046693346/
Jorgensen, M.W., & Phillips, L.J. (2002). Discourse analysis as theory and method. London: SAGE Publications Ltd.
Williams, M.K., Wetzel, K., Foulger, T., Kisicki, T., & Giacumo, L. (2011). Explicitly addressing TPACK in preservice teacher curriculum. In M. Koehler & P. Mishra (Eds.), Proceedings of Society for Information Technology & Teacher Education International Conference 2011 (pp. 4429-4434). Chesapeake, VA: AACE.
  
Mendeley drop-and-drag citations:

Missing author name. pragmatism, critical theory and post-structuralism. (n.d.). Retrieved February 16, 2012, from http://www.flickr.com/photos/dougbelshaw/5046693346/

Jorgensen, M. W., & Phillips, L. J. (2002). Discourse Analysis as Theory and Method (p. 230). Missing place name: Sage Publications Ltd. Retrieved from http://www.amazon.com/Discourse-Analysis-as-Theory-Method/dp/0761971122

Williams, M. K., Wetzel, K., Foulger, T., Kisicki, T., & Giacumo, L. (n.d.). Explicitly Addressing TPACK in Preservice Teacher Curriculum. Missing editors' names, Proceedings of Society for Information Technology & Teacher Education International Conference 2011 (Vol. 2011, pp. 4429 - 4434). Missing place and publisher. Retrieved from http://editlib.org/p/37030


Zotero drop-and-drag citations:


Belshaw, D. (2010, October 3). Pragmatism, Critical Theory and Post-structuralism. Retrieved February 16, 2012, from http://www.flickr.com/photos/dougbelshaw/5046693346/
Jorgensen, M. W., & Phillips, L. J. (2002). Discourse Analysis as Theory and Method (1st ed.). Missing place name: Sage Publications Ltd.
Williams, M. K., Wetzel, K., Foulger, T., Kisicki, T., & Giacumo, L. (20110307). Explicitly Addressing TPACK in Preservice Teacher Curriculum. Missing editors' names, Proceedings of Society for Information Technology & Teacher Education International Conference 2011 (Vol. 2011, pp. 4429–4434). Missing place and publisher. Retrieved from http://editlib.org/p/37030

I hate to say it, but I still think it's a draw. What do you think?

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August 1, 2011

Off the fence at last? Conducting a PDF metadata extraction experiment

Photo by twobee at FreeDigitalPhotos.net
As a PhD student entering her third year of studies, I think it's time for me to get off the fence about reference management software. I've muddled through the last two years, cobbling together reference pages in APA style and exploring, but never fully committing to, Zotero.

When I started my PhD program in Fall 2009, I chose to do my first literature review with open-source Zotero instead of the proprietary EndNote software that my institution supports.

I learned to love open-source applications when I took a course from Dr. Jay Pfaffman as an Instructional Technology master's student. With Zotero's Firefox plugin, I could create and own my own bibliographic database that synced with my Zotero web account, meaning it was accessible from any computer with an Internet connection.

I finished the literature review using Zotero to organize and tag my files and then automatically generate an APA-formatted bibliography. But under the crush of my course load and the multitude of distractions and obligations that go with doctoral-level work, I never gave myself the time to explore Zotero's interface and documentation.  I never used Zotero to take notes on my resources, nor did I take advantage of its word processor plug-ins for cite-and-write functionality. It all seemed so complicated.

I was printing, photocopying, underlining, annotating, and sticky-noting mounds of literature and basically using Zotero as the digital equivalent of 3x5 bib cards, which most people of a certain age can remember from their high school and college English classes. In and of itself, the ability to automatically generate a list of works cited is a nice thing, but is that enough value-added "worth investing money and time in?" (Hensley, 2011, p. 205) I'm pretty sure I could alphabetize my bib cards and word-process my bibliography the "old-fashioned" way in about the same amount of time it takes to fool with Zotero.

Now, in EP604 we are learning about the next generation of citation management software. These programs, including Zotero, aspire to do more and may possibly alter the entire academic research experience.  Zotero, for instance, has released an alpha version of a free-standing desktop application as part of the larger Zotero Everywhere project. Meanwhile, Mendeley, a commercial, cross-platform application, is already just about everywhere, with desktop, web, and mobile apps.

Both Zotero and Mendeley draw on social media functionality to provide a collaborative platform for public and private research groups.  But Mendeley has upped the ante with what it calls "Knowledge Discovery," which draws on readership statistics to predict research trends and to push new content out to users.  Another step toward the Googlification of everything.

Mendeley claims to be the "world's largest crowd-sourced library," and I am interested in the impact of collaboration and social networking on the research experience.   But for the moment, I have more pressing needs. I want a citation management tool that will integrate seamlessly with my conversion to paperless and that will help me reign in and organize two years' worth of scattered resources.

Ideally, I would like a tool that functions both as a document reader and a citation manager, but I am not at all impressed with either Mendeley's or Zotero's annotating capabilities.  To make matters worse, the Mendeley iPad app repeatedly crashes even after being uninstalled and re-installed. (Zotero doesn't even have an iPad app, although one appears to be in the works). I've resolved this issue by using a different iPad app to annotate and export "flattened" PDFs to Dropbox, a process I will describe in more detail in a future post.

If I outsource reading and annotating to an iOS app and put networking and collaboration on the back burner for the time being, that leaves me with the same basic question about reference managers that Aaron Tay posed last year on his Musings about Librarianship blog: "How good are they at figuring out citations from PDFs?"  Tay ran a series of "non-scientific tests" to see how well EndNote, Mendeley, WizFolio, and Zotero ingested a collection of 10 PDFs he downloaded from the Internet.

Using five bibliographic fields (article title, author, publication year, journal volume and issue number, and page numbers), Tay evaluated the results for each of the ten articles. A "pass" meant the software extracted correct information for all five fields, a "partial" indicated at least one field was satisfied, and a "fail" meant no bibliographic information was found. EndNote and WizFolio each had five "fails," and Mendeley and Zotero had a respectable combination of "passes" and "partials," with Zotero having the most passes of all.

Since a year has gone by with many upgrades and fixes along the way, I thought it would be interesting to try a scaled-down version of Tay's metadata experiment.  I used four articles from my desktop representing a range of years (from 1989 to 2011) and what I hoped would be a range of PDF versions, with and without DOIs, etc. I focused exclusively on Mendeley and Zotero; other than that, I followed all the steps that Tay described in his original post.

To make it more interesting, I utilized both applications' capability for inserting formatted citations by drag-and-drop technology straight into the text editor of this blog. I had never tried this before with either Mendeley or Zotero and was eager to see how it works. (BTW, the drag-and-drop piece was super easy with both applications, but I prefer Zotero's split-screen format that integrates with the Firefox browser better than resizing the Mendeley Desktop window.)

For comparison purposes, I copied and pasted my manually formatted APA citations first, with the Mendeley and Zotero citations following. I changed the text color within citations to indicate deviations from APA or missing information.

Manually formatted APA citations:  
Brown, J. S., Collins, A., & Duguid, P. (1989). Situated cognition and the culture of learning. Educational Researcher, 18(1), 32-42.
Mishra, P. & Koehler, M. J. (2006). Technological pedagogical content knowledge: A framework for teacher knowledge. Teachers College Record, 108(6), 1017-1054.
O’Bannon, B. W., Lubke, J. K., Beard, J. L., & Britt, V. G. (2011). Using podcasts to replace lecture: Effects on student achievement. Computers & Education, 57, 1885-1892. doi:10.1016/j.compedu.2011.04.001
The New London Group. (1996). A pedagogy of multiliteracies: Designing social futures. Harvard Educational Review, 66(1), 60-92.

Mendeley citations (note automatic insertion of some DOIs):
Brown, J. S., Collins, A., & Duguid, P. (1989). Situated Cognition and the Culture of Learning. Educational Researcher, 18(1), 32(missing page range). doi:10.2307/1176008
MISHRA, P., & KOEHLER, M. J. (2006). Technological Pedagogical Content Knowledge: A Framework for Teacher Knowledge. Teachers College Record, 108(6), 1017-1054. doi:10.1111/j.1467-9620.2006.00684.x
O’Bannon, B. W., Lubke, J. K., Beard, J. L., & Britt, V. G. (2011). Using podcasts to replace lecture: Effects on student achievement. Computers & Education, 57(3), 1885-1892. doi:10.1016/j.compedu.2011.04.001
No author. A pedagogy of multiliteracies : Designing social futures. (1996). Library. (No journal, volume or issue number, or page numbers)

Zotero citations (note automatic double-spacing):
Brown, J. S., Collins, A., & Duguid, P. (1989). Situated cognition and the culture of learning. Educational researcher, 18(1), 32(missing page range).
Mishra, P., & Koehler, M. J. (2006). Technological pedagogical content knowledge: A framework for teacher knowledge. Teachers college record, 108(6), 1017(missing page range).
O’Bannon, B. W., Lubke, J. K., Beard, J. L., & Britt, V. G. (2011). Using Podcasts to Replace Lecture: Effects on Student Achievement. Computers & Education. (No volume or page numbers)
Pedagogy+of+Multiliteracies_New+London+Group.pdf. (n.d.). . Retrieved from http://vassarliteracy.pbworks.com/f/Pedagogy+of+Multiliteracies_New+London+Group.pdf (Hmmm. Just really messed up!)

So, should I stick it out with Zotero or make the leap to Mendeley?

I like that Mendeley located and added the DOIs for three out of the four documents.  I like how Zotero automatically double-spaces.  The 1996 article by The New London Group is just all the way around problematic and perhaps should not have been included in my little "experiment," but it is a seminal writing in the field of literacy and I will need it in my web-based library at some point.  Another limitation is the fact that I did not include at least one example of a conference proceeding to see how the two reference managers performed in that situation.  I probably should run another test with a proceedings paper before I choose a tool.

Or, do I even have to choose? According to Julie Meloni at the ProfHacker blog, it is easy to import Zotero resources to Mendeley, and, "Given the syncing abilities, it would be possible (and not terribly difficult or time consuming) to, say, work with Zotero as your primary tool yet sync with Mendeley so as to increase the content in your field and just add to the community in general."

What would you do?
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April 2, 2007

April is the cruelest month: an update on my IT 521 projects

Well, it's April, and the countdown is on. I haven't posted in a while, so here is a progress report on my final projects for IT 521.

My PC, which continues to run Ubuntu splendidly, is still not wireless. Unfortunately, I have had to shift my attention away from it to work on other assignments and projects for IT 521. In hopes of solving the wireless issue, I did try installing the 7.04 beta mode upgrade available off the front page of the Ubuntu website. The download and install went smoothly, but there is still no Internet access without a network cable. Overall, I am pleased with the speed and ease of the Ubuntu OS but would very much like to solve the wireless problem.

My focus this past week has been on Inspiration and open-source concept mapping software (CMap and FreeMind). This IT 521 assignment really held my attention because I was able to use these tools to complete other course work as well as help a friend plan a vacation. For example, I mapped the effects of NCLB legislation using CMap. I also created an interactive outline of barbecue restaurants and live music venues in Austin, Texas. Not too shabby!

Now, I am focused on Webliograpaher. I have set up two Webliographer pages as part of my semester project in IT 521. Here are the links:

Publish Me! Webliographer
Fulton High School Webliographer

On Tuesday, April 3, I will conduct a brief, after-school inservice for Fulton High School faculty members who want to participate in the Fulton Webliographer. I hope to help at least a few teachers register a user account and start adding their own URLs. I am especially interested in selling the simplicity and efficiency of web-based bookmarking, a concept I didn't know about until this semester. There is tremendous value here for the classroom teacher who wishes to seamlessly integrate Internet resources into instruction.
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March 20, 2007

Virus scanner? Check. Printer? Check. Wireless connection? Nope.

Tonight I installed a virus scanner using the add/remove menu on the applications toolbar of Ubuntu. There is a search tool you can use to locate different open source applications offered by the Ubuntu community. Installing the scanner was easy, but Ron says it is not the same as virus protection. I'll keep looking for open source virus protection.

Re-installing my HP 1315 all-in-one printer was also pretty easy. Under the system toolbar I selected "administration" and then "printing." From there I clicked on "printer" and then "add printer." Ubuntu walks you through a three-step process to add a printer.

I don't have a clue about how to reconfigure my wireless connection. I am still connecting to the Internet using a network cable. If anyone out there is reading this and has an idea, please tell me!
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Keyboard problem solved

So, the answer to my March 19 post is, "Yes, I screwed up something with my keyboard when installing Ubuntu!" Luckily, the problem was easily remedied. I had accidentally selected the "English International" keyboard layout. I found this out when I went to the system menu, selected "preferences" and then "keyboard" and then "layouts." You can add or remove layouts, so I added the U.S. English layout and removed the international one. Easy enough.
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March 19, 2007

WhatÅ› up with my keyboard?

So, itÅ› not all love and warm-fuzzies in Ubuntu land.

If you have been reading my latest posts, I wonder if you have noticed something unusual about the apostrophes? They render oddly in the ¨compose¨ mode, the ¨preview¨ mode, and the final ¨view blog¨ window. And I experience the same problem when typing a document in OpenOffice Writer.

In fact, the apostrophe/quotation mark key has been giving me fits all night. I really have to tap it hard to get either punctuation mark to show up on screen.

Could I have messed something up during the installation?
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March 18, 2007

Installing Ubuntu, Part 3

Success at last!

Today Ron had a brainstorm. Why not try one of the other install options offered on the Ubuntu boot-up menu? We kept the computer plugged into the modem with the network cable, fired up the computer with the Ubuntu 6.10 CD still in the drive, and waited for the menu to show up. Rather than select the first option, we tried ¨install text only," which is the second or third option down the list.

The installation took less than one hour. We still received the error message about the ¨wireless applet," which we chose to delete and reconfigure later based on RonÅ› friendÅ› advice. When all was said and done, the entire operating system was installed on my laptop with graphics and everything!

I am now creating this post using the Firefox browser on my brand-new Ubuntu desktop. My computer runs like a dream! It used to take several minutes to start up; now I can start up and be online in less than two minutes.

The only tasks left to deal with are making my computer wireless again and installing some virus protection. I feel confident about the latter, but I don´t have a clue about the former! Oh, and according to Ubuntu, I already have 134 software updates! This I have come to expect after reading some of JasonÅ› posts.
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Installing Ubuntu, Part 2

My official Ubuntu CD arrived on Friday from Amazon. Hopeful it would install easier than the CD I had burned, I popped it into my computer on Saturday morning. The good news is I got further along in the installation process than I had in my previous two attempts. I got far enough to encounter an error message. The message said something like this: "The panel encountered a problem wile loading OAFIID: Gnome_panel_WirelessApplet. Do you want to delete the applet from your configuration?" For no special reason, I chose the "don't delete" option. This may have been a mistake because shortly thereafter my computer froze up again.

Ron spoke to his Linux friend, who offered a few suggestions. He said the installation might go more smoothly if I connected directly to my Internet modem using a network cable to get a stronger connection. Luckily, Ron had a cable in his computer bag. Our friend also suggested that we delete the "applet" (whatever that is) and worry about setting up the wireless connection later. He said sometimes when installing a new system, the user has to go back later and configure things separately.

Around 11:30 a.m. I connected my laptop to the modem with a cable. Just as before, I started the installation with the Ubuntu CD in the drive. After double-clicking the install icon on the desktop, I walked away. When I returned to my computer some hours later, the clock in the menu bar was frozen at 11:47.

Still no progress.
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March 16, 2007

Installing Ubuntu, Part 1

A lot as happened in the last three days, and I hope to recapture it all as accurately as possible in this post.

First, a few reflections about the process. I started my "Ubuntu Odyssey" (and that is indeed what it has been) almost a week ago. If I had had one full, unadulterated block of time, a day perhaps, I may have been able to finish this project. That is not my reality, though. Instead, I had to break down the project into steps, and whenever I had a free hour or two, I worked on it. More often than not, each session ended with a roadblock or dead end -- very frustrating but also beneficial in that I had time between steps to reflect and seek help from others. As it would happen, Ron (my husband) works with a Linux disciple who is all too happy to offer advice. Thanks to this fellow and Ron, I have been able to pretty much avoid a complete nervous breakdown.

So, after the whole download debacle (See posts from March 12th and 13th.), I decided to just go ahead and burn the sucker on a CD-R disc and fore go the whole md5sum nightmare. This burn took about half an hour. Then, I followed the instructions for the CD integrity check found at the Ubuntu website. In about five minutes, the CD passed the test.

My next order of business was to erase my hard drive, or so I thought. Ron told me this was called an f-disk command, but he had never performed the operation before and could not tell me how to do it. I searched the Internet and found step-by-step instructions for erasing a hard drive at computerhope.com. I followed the steps as best I could, but, like the md5sum, my computer would not recognize the f-disk command. I fiddled with it for the better part of Wednesday morning. In the interim, Ron talked to his Linux friend. According to him, all I had to do was install Ubuntu; the installation process would take care of the hard drive for me. Great!

So on Thursday morning, I began the Ubuntu install. First, I started up my computer (which, for the record, is a 2003 Compaq Presario 2100 that runs Widows XP) and immediately hit the f2 key to get the set-up menu. I selected "boot from CD," inserted the Ubuntu CD I had burned a few days earlier, exited the set-up menu, and restarted my computer. When the Ubuntu screen popped up, I selected the first option, "Install Ubuntu." The desktop appeared rather quickly, and I double-clicked the install icon in the upper left corner. I was hopeful that the rest of the process would resemble the 30-minute, 6-step procedure that Jason described in his blog. But that was not to be. I started at 7:02 a.m. My computer locked up twice, once at 7:27 and again at 7:47. When it froze up the second time, I quit trying to install.

Now it is Friday, and I am trying to decide my next move. Do I resume efforts to wipe my hard drive clean in hopes of making the installation go more smoothly? Do I wait for the arrival of the Ubuntu CD I ordered from Amazon before trying again?
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March 13, 2007

Ubuntu download dilemma

Well, my attempts to check the data integrity of my Ubuntu installation file did not go well. The Ubuntu website strongly recommends the procedure before burning the file to CD. I can definitely understand the need for your OS install CD to be 100 percent correct, so I followed the instructions for downloading and running the md5sum utility that are located on the Ubuntu website. I tried downloading an md5sum from a couple of sites, actually, and the result was always the same: my computer never recognized the md5sum command.

So now I have a dilemma. Do I just burn the CD and hope for the best, or do I keep trying?
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March 12, 2007

Dowloading Ubuntu

That whole thing about maybe I should have ordered the Ubuntu CD is coming home to roost. I started the download of the installation CD last night using my husband's computer, which has a faster processor and more memory. We also have a cable broadband connection here at the house. The download still took six hours, and now, according to the Ubuntu website, there are "data integrity" checks that I should perform before actually burning the download to a CD. Then, after burning the CD, there is a "CD integrity " check to perform as well.

For anyone who might someday read this posting (yeah, right), check out the Ubuntu listing on Amazon. The latest version of Ubuntu for PCs can be purchased for $10, not including shipping. I am ordering a copy as a safeguard.

And, of course, you can always install Edubuntu using the CD distributed in IT521 by Dr. Pfaffman.
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