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NSA’s PRISM program the manhunt for the Boston bombers cutting edge facial recognition software development at Carnegie Mellon University

Item 3 of the Code of Ethics of the American Library Association

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RUSA Guidelines for Implementing and Maintaining Virtual Reference Services ALA Guidelines to Drafting a Library Privacy Policy

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A Librarian’s Guide to OpenRefine

This originally appeared on the ACRL TechConnect blog.

Academic librarians working in technical roles may rarely see stacks of books, but they doubtless see messy digital data on a daily basis. OpenRefine is an extremely useful tool for dealing with this data without sophisticated scripting skills and with a very low learning curve. Once you learn a few tricks with it, you may never need to force a student worker to copy and paste items onto Excel spreadsheets.

As this comparison by the creator of OpenRefine shows, the best use for the tool is to explore and transform data, and it allows you to make edits to many cells and rows at once while still seeing your data. This allows you to experiment and undo mistakes easily, which is a great advantage over databases or scripting where you can’t always see what’s happening or undo the typo you made. It’s also a lot faster than editing cell by cell like you would do with a spreadsheet.

Here’s an example of a project that I did in a spreadsheet and took hours, but then I redid in Google Refine and took a lot less time. One of the quickest things to do with OpenRefine is spot words or phrases that are almost the same, and possibly are the same thing. Recently I needed to turn a large export of data from the catalog into data that I could load into my institutional repository. There were only certain allowed values that could be used in the controlled vocabulary in the repository, so I had to modify the bibliographic data from the catalog (which was of course in more or less proper AACR2 style) to match the vocabularies available in the repository. The problem was that the data I had wasn’t consistent–there were multiple types of abbreviations, extra spaces, extra punctuation, and outright misspellings. An example is the History Department. I can look at “Department of History”, “Dep. of History”, “Dep of Hist.” and tell these are probably all referring to the same thing, but it’s difficult to predict those potential spellings. While I could deal with much of this with regular expressions in a text editor and find and replace in Excel, I kept running into additional problems that I couldn’t spot until I got an error. It took several attempts of loading the data until I cleared out all the errors.

In OpenRefine this is a much simpler task, since you can use it to find everything that probably is the same thing despite the slight differences in spelling, punctuation and spelling. So rather than trying to write a regular expression that accounts for all the differences between “Department of History”, “Dep. of History”, “Dep of Hist.”, you can find all the clusters of text that include those elements and change them all in one shot to “History”. I will have more detailed instructions on how to do this below.

Installation and Basics

OpenRefine was called, until last October, Google Refine, and while the content from the Google Refine page is being moved to the Open Refine page you should plan to look at both sites. Documentation and video tutorials refer interchangeably to Google Refine and OpenRefine. The official and current documentation is on the OpenRefine GitHub wiki. For specific questions you will probably want to use the OpenRefine Custom Search Engine, which brings together all the mix of documentation and tutorials on the web. OpenRefine is a web app that runs on your computer, so you don’t need an internet connection to run it. You can get the installation instructions on this page.

While you can jump in right away and get started playing around, it is well worth your time to watch the tutorial videos, which will cover the basic actions you need to take to start working with data. As I said, the learning curve is low, but not all of the commands will make sense until you see them in action. These videos will also give you an idea of what you might be able to do with a data set you have lying around. You may also want to browse the “recipes” on the OpenRefine site, as well search online for additional interesting things people have done. You will probably think of more ideas about what to try. The most important thing to know about OpenRefine is that you can undo anything, and go back to the beginning of the project before you messed up.

A basic understanding of the Google Refine Expression Language, or GREL will improve your ability to work with data. There isn’t a whole lot of detailed documentation, so you should feel free to experiment and see what happens when you try different functions. You will see from the tutorial videos the basics you need to know. Another essential tool is regular expressions. So much of the data you will be starting with is structured data (even if it’s not perfectly structured) that you will need to turn into something else. Regular expressions help you find patterns which you can use to break apart strings into something else. Spending a few minutes understanding regular expression syntax will save hours of inefficient find and replace. There are many tutorials–my go-to source is this one. The good news for librarians is that if you can construct a Dewey Decimal call number, you can construct a regular expression!

Some ideas for librarians

 

(A) Typos

Above I described how you would use OpenRefine to clean up messy and inconsistent catalog data. Here’s how to do it. Load in the data, and select “Text Facet” on the column in question. OpenRefine will show clusters of text that is similar and probably the same thing.

AcademicDept Text Facet
AcademicDept Text Facet

 

Click on Cluster to get a menu for working with multiple values. You can click on the “Merge” check box and then edit the text to whatever you need it to be. You can also edit each text cluster to be the correct text.

Cluster and Edit
Cluster and Edit

You can merge and re-cluster until you have fixed all the typos. Back on the first Text Facet, you can hover over any value to edit it. That way even if the automatic clustering misses some you can edit the errors, or change anything that is the same but you need to look different–for instance, change “Dept. of English” to just “English”.

(B) Bibliographies

The main thing that I have used OpenRefine for in my daily work is to change a bibliography in plain text into columns in a spreadsheet that I can run against an API. This was inspired by this article in the Code4Lib Journal: “Using XSLT and Google Scripts to Streamline Populating an Institutional Repository” by Stephen X. Flynn, Catalina Oyler, and Marsha Miles. I wanted to find a way to turn a text CV into something that would work with the SHERPA/RoMEO API, so that I could find out which past faculty publications could be posted in the institutional repository. Since CVs are lists of data presented in a structured format but with some inconsistencies, OpenRefine makes it very easy to present the data in a certain way as well as remove the inconsistencies, and then to extend the data with a web service. This is a very basic set of instructions for how to accomplish this.

The main thing to accomplish is to put the journal title in its own column. Here’s an example citation in APA format, in which I’ve colored all the “separator” punctuation in red:

Heller, M. (2011). A Review of “Strategic Planning for Social Media in Libraries”. Journal of Electronic Resources Librarianship, 24 (4), 339-240)

From the drop-down menu at the top of the column click on “Split into several columns…” from the “Edit Column” menu. You will get a menu like the one below. This example finds the opening parenthesis and removes that in creating a new column. The author’s name is its own column, and the rest of the text is in another column.

Spit into columns

 

The rest of the column works the same way–find the next text, punctuation, or spacing that indicates a separation. You can then rename the column to be something that makes sense. In the end, you will end up with something like this:

Split columns

When you have the journal titles separate, you may want to cluster the text and make sure that the journals have consistent titles or anything else to clean up the titles. Now you are a ready to build on this data with fetching data from a web service. The third video tutorial posted above will explain the basic idea, and this tutorial is also helpful. Use the pull-down menu at the top of the journal column to select “Edit column” and then “Add column by fetching URLs…”. You will get a box that will help you construct the right URL. You need to format your URL in the way required by SHERPA/RoMEO, and will need a free API key. For the purposes of this example, you can use 'http://www.sherpa.ac.uk/romeo/api29.php?ak=[YOUR API KEY HERE]&qtype=starts&jtitle=' + escape(value,'url'). Note that it will give you a preview to see if the URL is formatted in the way you expect. Give your column a name, and set the Throttle delay, which will keep the service from rejecting too many requests in a short time. I found 1000 worked fine.

refine7

After this runs, you will get a new column with the XML returned by SHERPA/RoMEO. You can use this to pull out anything you need, but for this example I want to get pre-archiving and post-archiving policies, as well as the conditions. A quick way to to this is to use the Googe Refine Expression Language parseHtml function. To use this, click on “Add column based on this column” from the “Edit Column” menu, and you will get a menu to fill in an expression.

refine91

In this example I use the code value.parseHtml().select("prearchiving")[0].htmlText(), which selects just the text from within the prearchving element. Conditions are a little different, since there are multiple conditions for each journal. In that case, you would use the following syntax (after join you can put whatever separator you want): forEach(value.parseHtml().select("condition"),v,v.htmlText()).join(". ")"

So in the end, you will end up with a neatly structured spreadsheet from your original CV with all the bibliographic information in its own column and the publisher conditions listed. You can imagine the possibilities for additional APIs to use–for instance, the WorldCat API could help you determine which faculty published books the library owns.

Once you find a set of actions that gets your desired result, you can save them for the future or to share with others. Click on Undo/Redo and then the Extract option. You will get a description of the actions you took, plus those actions represented in JSON.

refine13

Unselect the checkboxes next to any mistakes you made, and then copy and paste the text somewhere you can find it again. I have the full JSON for the example above in a Gist here. Make sure that if you save your JSON publicly you remove your personal API key! When you want to run the same recipe in the future, click on the Undo/Redo tab and then choose Apply. It will run through the steps for you. Note that if you have a mistake in your data you won’t catch it until it’s all finished, so make sure that you check the formatting of the data before running this script.

Learning More and Giving Back

Hopefully this quick tutorial got you excited about OpenRefine and thinking about what you can do. I encourage you to read through the list of External Resources to get additional ideas, some of which are library related. There is lots more to learn and lots of recipes you can create to share with the library community.

Have you used OpenRefine? Share how you’ve used it, and post your recipes.

 

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Personal Data Monitoring: Gamifying Yourself

The academic world has been talking about gamification of learning for some time now. The 2012 Horizon Report says gamification of learning will become mainstream in 2-3 years. Gamification taps into the innate human love of narrative and displaying accomplishments.  Anyone working through Code Year is personally familiar with the lure of the green bar that tells you how far you are to your next badge. In this post I want to address a related but slightly different topic: personal data capture and analytics.

Where does the library fit into this? One of the roles of the academic library is to help educate and facilitate the work of researchers. Effective research requires collecting a wide variety of relevant sources, reading them, and saving the relevant information for the future. The 2010 book Too Much to Know by Ann Blair describes the note taking and indexing habits taught to scholars in early modern Europe. Keeping a list of topics and sources was a major focus of scholars, and the resulting notes and indexes were published in their own right. Nowadays maintaining a list of sources is easier than ever with the many tools to collect and store references–but challenges remain due to the abundance of sources and pressure to publish, among others.

New Approaches and Tools in Personal Data Monitoring

Tracking one’s daily habits, reading lists and any other personal information is a very old human habit. Understanding what you are currently doing is the first step in creating better habits, and technology makes it easier to collect this data. Stephen Wolfram has been using technology to collect data about himself for nearly 25 years, and he posted some visual examples of this a few weeks ago. This includes items such as how many emails he’s sent and received, keystrokes made, and file types created. The Felton report, produced by Nick Felton, is a gorgeously designed book with personal data about himself and his family. But you don’t have to be a data or design whiz to collect and display personal information. For instance, to display your data in a visually compelling way you can use a service such as Daytum to create a personal data dashboard.

Hours of Activity recorded by Fitbit

In the realm of fitness and health, there are many products that will help capture, store, and analyze personal data.  Devices like the Fitbit now clip or strap to your body and count steps taken, floors climbed, and hours slept. Pedometers and GPS enabled sport watches help those trying to get in shape, but the new field of personal genetic monitoring and behavior analytics promise to make it possible to know very specific information about your health and understand potential future choices to make. 23andMe will map your personal genome and provide a portal for analyzing and understanding your genetic profile, allowing unprecedented ability to understand health. (Though there is doubt about whether this can accurately predict disease). For the behavioral and lifestyle aspects of health a new service called Ginger.io will help collect daily data for health professionals.

Number of readers recorded by Mendeley

Visual cues of graphs of accomplishments and green progress bars can be as helpful in keeping up research and monitoring one’s personal research habits just as much as they help in learning to code or training for a marathon. One such feature is the personal reading challenge on Goodreads,which lets you set a goal of how many books to read in the year, tracks what you’ve read, and lets you know how far behind or ahead you are at your current reading pace. Each book listed as in progress has a progress bar indicating how far along in the book you are. This is a simple but effective visual cue. Another popular tool, Mendeley, provides a convenient way to store PDFs and track references of all kinds. Built into this is a small green icon that indicates a reference is unread. You can sort references by read/unread–by marking a reference as “read”, the article appears as read in the Mendeley research database. Academia.eduprovides another way for scholars to share research papers and see how many readers they have.

Libraries and Personal Data

How can libraries facilitate this type of personal data monitoring and make it easy for researchers to keep track of what they have done and help them set goals for the future? Last November the Academic Book Writing Month (#acbowrimo) Twitter hashtag community spun off of National Novel Writing Month and challenged participants to complete the first draft of an academic book or other lengthy work. Participants tracked daily word counts and research goals and encouraged each other to complete the work. Librarians could work with researchers at their institutions, both faculty and students, on this type of peer encouragement. We already do this type of activity, but tools like Twitter make it easier to share with a community who might not come to the library often.

The recent furor over the change in Google’s privacy settings prompted many people to delete their Google search histories. Considered another way, this is a treasure trove of past interests to mine for a researcher trying to remember a book he or she was searching for some years ago—information that may not be available anywhere else. Librarians have certain professional ethics that make collecting and analyzing that type of personal data extremely complex. While we collect all types of data and avidly analyze it, we are careful to not keep track of what individuals read, borrowed, or asked of a librarian. This keeps individual researchers’ privacy safe; the major disadvantage is that it puts the onus on the individual to collect his own data. For people who might read hundreds or thousands of books and articles it can be a challenge to track all those individual items. Library catalogs are not great at facilitating this type of recordkeeping. Some next generation catalogs provide better listing and sharing features, but the user has to know how to add each item. Even if we can’t provide users a historical list of all items they’ve ever borrowed, we can help to educate them on how to create such lists. And in fact, unless we do help researchers create lists like this we lose out on an important piece of the historical record, such as the library borrowing history in Dissenting Academies Online.

Conclusion

What are some types of data we can ethically and legally share to help our researchers track personal data? We could share statistics on the average numbers of books checked out by students and faculty, articles downloaded, articles ordered, and other numbers that will help people understand where they fall along a continuum of research. Of course all libraries already collect this information–it’s just a matter of sharing it in a way that makes it easy to use. People want to collect and analyze data about what they do to help them reach their goals. Now that this is so easy we must consider how we can help them.

 

Works Cited
Blair, Ann. Too Much to Know : Managing Scholarly Information Before the Modern Age. New Haven: Yale University Press, 2010.