Wednesday, March 31, 2010

Controlled Vocabulary

In both IST 604 (Cataloging of Information Resources) and IST 616 (Information Resources: Organization & Access) we have been covering the concepts of subject headings in bibliographic records

What are they? Well, to the chagrin of my professors, none of my textbooks had a satisfactory, easy to understand definition. This one is from Wikipedia’s entry about Index term:

“...is a term that captures the essence of the topic of a document. Index terms make up a controlled vocabulary for use in bibliographic records. They are an integral part of bibliographic control, which is the function by which libraries collect, organize and disseminate documents. They are used as keywords to retrieve documents in an information system, for instance, a catalog or a search engine. A popular form of keywords on the web are tags which are directly visible and can be assigned by non-experts also. Index terms can consist of a word, phrase, or alphanumerical term. They are created by analyzing the document either manually with subject indexing or automatically with automatic indexing or more sophisticated methods of keyword extraction. Index terms can either come from a controlled vocabulary or be freely assigned.”

To be clear, subject headings are not the title, author, publication information, or any such data you might find in a catalog record (or, bibliographic record, if you prefer). They describe the content of the item itself. Most folks know this type of description from tags. You know them and use them all the time - here’s an example of some of my tags on a flickr photo of mine:



Pretty straightforward, right? Well, take a look at the image these tags describe and think about how you would tag it.



Let’s say, for example, you picked “overcast” as one of your tags. That’s a pretty subjective term - it has meaning for you, but someone else might say “cloudy” or “gloomy.” So what happens to this image if someone is searching for images that are “cloudy” on flickr? My image won’t appear in their search. And this is one of the problems with socially-based tagging (and cataloging): words have different meanings to different people.

This same concept is applicable for any item in a library’s catalog. Say you are searching for Shakespeare’s Romeo and Juliet and for some reason, all you can remember is that it’s about “love,” so you search the subjects in the catalog for that term. If the items in the catalog are sourced solely on the tagging system I mentioned above, then you might or might not find the play you were searching for, because the assigned tag might be “suicide” or “passion” for Romeo and Juliet.

I think you’ll agree with me in saying that this is a problem for library users. There needs to be one agree upon term for certain words for subject headings. Well, rest easy reader, as there is a concept called controlled vocabulary that will help you out of this information quandary. One of my textbooks has a reasonably good definition of this:

Controlled vocabulary: A list or database of terms in which all terms or phrases representing a concept are brought together. Often a preferred term or phrase is designated for use in surrogate records in a retrieval tool; the not to be used have references from them to the chosen term or phrase, and relationships (e.g., broader terms, narrower terms, related terms, etc.) among used terms are identified. There may also be scope notes to explain the terms and there may be hierarchical listings.
(Taylor, Joudrey; The Organization of Information, p. 450)

So in a controlled vocabulary environment, there is a single agreed upon term for many concepts, organizations, and even people - so that we are all talking about “the same thing” when describing an item. What does this look like in a catalog record? Well, these headings are in the 650 and 651 fields in this MARC record:



You see how they are linked (blue text) and are not editable? That means they are linked to a controlled vocabulary, which is in this case the Library of Congress’ Authorities, which is the most commonly used set of controlled vocabulary in the US.

Let’s take the first one “Camping” and talk about that for a moment. I know your sharp eyes already picked out how that heading is not just the word “Camping,” but that it is subdivided into more specific categories. This is always done in subject description - more specificity is preferable. So then. The “camping” heading tells us that this is a catalog from an exhibition of pictures about camping. All books like this would be described in the same way.

But what if someone doesn’t search by the specific keywords in the controlled vocabulary? Well, that’s not a problem, as the files for each word have synonyms that refer to the heading (the agreed-upon term) so that you can search with a different word and still find what you are looking for.

Pretty neat, right? I thought so too!

There is one problem with this system though. The Library of Congress’ Authorities are, as you can imagine, mind-bogglingly massive, and so is slow to change. Perhaps some sort of combination of social sourcing and controlled vocabulary would be in the best interest to the user? I have no broad plans for this or suggestions, just an idea.

If you want to know more, let me hear from you in the comments!

Tuesday, March 30, 2010

Librarians in Second Life

I just finished reading Marilyn Johnson’s new book This Book Is Overdue!: How Librarians and Cybrarians Can Save Us All. It’s a great read, and if you are interested in the future of libraries and librarians I would recommend it to you. In the book, Johnson discusses librarians who are on the Second Life website, answering reference questions and representing their respective libraries in that virtual world. While reading this, one word arose in my mind:

Why?

Before I explain myself, I understand that many of my fellow librarians are actively “doing librarianship” on Second Life, and I feel sure they have a different, and equally valid opinion about this. (If you are familiar with Second Life, let me hear from you in the comments!)

That being said, I do not understand why there is such a push for librarians to practice our craft on Second Life. Three things come to mind when I questions this:

First, Second Life is only a duplication of services widely available through library websites. Electronic reference services are available through many library websites, as are the catalog of items in the library’s collection (OPAC, if you want the acronym). In addition, many libraries offer their digitized assets in a much more pleasant virtual environment than Second Life offers. Of course, this idea of library websites could really be a post unto itself - meaning a list of things that all library websites should have, and how many of them are not really that great.

Second, the user interface of a website is far more user friendly than the interface in Second Life - meaning people in general know how to navigate a website as this is a commonly used form for the presentation of “virtual objects.” The Second Life experience requires the user to install the program, sign up for the service, learn navigation, and also assumes a high speed internet connection. For people already on Second Life, these things are not a problem - but for the people not on Second Life (the majority of internet users) these hurdles prevent them from using the library services on Second Life.

Third, why is so much focus and effort spent on such a small user group? I know Second Life was pretty popular at one point (and I’ll talk about that in my fourth and final point) but the numbers just don’t seem to justify all the money and effort spent by libraries on their presences in Second Life.

Finally, one rarely hears about Second Life after the initial media blitz of a few years ago, and so I suppose my question is, what does the user base look like now? What do the users do? How long do people spend on there? There really needs to be some studies done about usage on Second Life.

Still, though, I ask “why?”

Monday, March 29, 2010

Young Librarians Blog Highlight

Readers,

I have a blog highlight up over at the great communal blog, The Young Librarian Series. I talk about the inspiration behind my posts about library design, and the key elements of a great library space. I invite you to check it out!

Jason

Friday, March 26, 2010

Justice John Paul Stevens

I just finished reading a profile of Justice John Paul Stevens in this week’s New Yorker. In it, they mention his concurring opinion in the case Baze v. Rees, which I read, and found so compelling, I wanted to share most of it with you here. I am not trying to tell you to think a certain way, nor am I trying to espouse some point of view about the death penalty on this blog, I simply think this is one of the most well-reasoned examinations of the death penalty I have read. I am interested to know your opinion in the matter - let me hear from you in the comments below. Without further ado, here is an excerpt from Justice Stevens’ concurring opinion in Baze v. Rees.



The thoughtful opinions written by The Chief Justice and by Justice Ginsburg have persuaded me that current decisions by state legislatures, by the Congress of the United States, and by this Court to retain the death penalty as a part of our law are the product of habit and inattention rather than an acceptable deliberative process that weighs the costs and risks of administering that penalty against its identifiable benefits, and rest in part on a faulty assumption about the retributive force of the death penalty.

    In Gregg v. Georgia, 428 U. S. 153 (1976) , we explained that unless a criminal sanction serves a legitimate penological function, it constitutes “gratuitous infliction of suffering” in violation of the Eighth Amendment . We then identified three societal purposes for death as a sanction: incapacitation, deterrence, and retribution. See id., at 183, and n. 28 (joint opinion of Stewart, Powell, and Stevens, JJ.). In the past three decades, however, each of these rationales has been called into question.

    While incapacitation may have been a legitimate rationale in 1976, the recent rise in statutes providing for life imprisonment without the possibility of parole demonstrates that incapacitation is neither a necessary nor a sufficient justification for the death penalty. Moreover, a recent poll indicates that support for the death penalty drops significantly when life without the possibility of parole is presented as an alternative option. And the available sociological evidence suggests that juries are less likely to impose the death penalty when life without parole is available as a sentence.

    The legitimacy of deterrence as an acceptable justification for the death penalty is also questionable, at best. Despite 30 years of empirical research in the area, there remains no reliable statistical evidence that capital punishment in fact deters potential offenders. In the absence of such evidence, deterrence cannot serve as a sufficient penological justification for this uniquely severe and irrevocable punishment.

    We are left, then, with retribution as the primary rationale for imposing the death penalty. And indeed, it is the retribution rationale that animates much of the remaining enthusiasm for the death penalty. As Lord Justice Denning argued in 1950, “ ‘some crimes are so outrageous that society insists on adequate punishment, because the wrong-doer deserves it, irrespective of whether it is a deterrent or not.’ ” See Gregg, 428 U. S., at 184, n. 30. Our Eighth Amendment jurisprudence has narrowed the class of offenders eligible for the death penalty to include only those who have committed outrageous crimes defined by specific aggravating factors. It is the cruel treatment of victims that provides the most persuasive arguments for prosecutors seeking the death penalty. A natural response to such heinous crimes is a thirst for vengeance.

    At the same time, however, as the thoughtful opinions by The Chief Justice and Justice Ginsburg make pellucidly clear, our society has moved away from public and painful retribution towards ever more humane forms of punishment. State-sanctioned killing is therefore becoming more and more anachronistic. In an attempt to bring executions in line with our evolving standards of decency, we have adopted increasingly less painful methods of execution, and then declared previous methods barbaric and archaic. But by requiring that an execution be relatively painless, we necessarily protect the inmate from enduring any punishment that is comparable to the suffering inflicted on his victim. This trend, while appropriate and required by the Eighth Amendment ’s prohibition on cruel and unusual punishment, actually undermines the very premise on which public approval of the retribution rationale is based. See, e.g., Kaufman-Osborn, Regulating Death: Capital Punishment and the Late Liberal State, 111 Yale L. J. 681, 704 (2001) (explaining that there is “a tension between our desire to realize the claims of retribution by killing those who kill, and … a method [of execution] that, because it seems to do no harm other than killing, cannot satisfy the intuitive sense of equivalence that informs this conception of justice”); A. Sarat, When the State Kills: Capital Punishment and the American Condition 60–84 (2001).

    Full recognition of the diminishing force of the principal rationales for retaining the death penalty should lead this Court and legislatures to reexamine the question recently posed by Professor Salinas, a former Texas prosecutor and judge: “Is it time to Kill the Death Penalty?” See Salinas, 34Am. J. Crim. L. 39 (2006). The time for a dispassionate, impartial comparison of the enormous costs that death penalty litigation imposes on society with the benefits that it produces has surely arrived.

III

    “[A] penalty may be cruel and unusual because it is excessive and serves no valid legislative purpose.” Furman v. Georgia, 408 U. S. 238, 331 (1972) (Marshall, J., concurring); see also id., at 332 (“The entire thrust of the Eighth Amendment is, in short, against ‘that which is excessive’ ”). Our cases holding that certain sanctions are “excessive,” and therefore prohibited by the Eighth Amendment , have relied heavily on “objective criteria,” such as legislative enactments. See, e.g., Solem v. Helm, 463 U. S. 277, 292 (1983) ; Harmelin v. Michigan, 501 U. S. 957 (1991) ; United States v. Bajakajian, 524 U. S. 321 (1998) . In our recent decision in Atkins v. Virginia, 536 U. S. 304 (2002) , holding that death is an excessive sanction for a mentally retarded defendant, we also relied heavily on opinions written by Justice White holding that the death penalty is an excessive punishment for the crime of raping a 16-year-old woman, Coker v. Georgia, 433 U. S. 584 (1977) , and for a murderer who did not intend to kill, Enmund v. Florida, 458 U. S. 782 (1982) . In those opinions we acknowledged that “objective evidence, though of great importance, did not ‘wholly determine’ the controversy, ‘for the Constitution contemplates that in the end our own judgment will be brought to bear on the question of the acceptability of the death penalty under the Eighth Amendment .’ ” Atkins, 536 U. S., at 312 (quoting Coker, 433 U. S., at 597 (plurality opinion)).

    Justice White was exercising his own judgment in 1972 when he provided the decisive vote in Furman, the case that led to a nationwide reexamination of the death penalty. His conclusion that death amounted to “cruel and unusual punishment in the constitutional sense” as well as the “dictionary sense,” rested on both an uncontroversial legal premise and on a factual premise that he admittedly could not “prove” on the basis of objective criteria. 408 U. S., at 312, 313 (concurring opinion). As a matter of law, he correctly stated that the “needless extinction of life with only marginal contributions to any discernible social or public purposes … would be patently excessive” and violative of the Eighth Amendment . Id., at 312. As a matter of fact, he stated, “like my Brethren, I must arrive at judgment; and I can do no more than state a conclusion based on 10 years of almost daily exposure to the facts and circumstances of hundreds and hundreds of federal and state criminal cases involving crimes for which death is the authorized penalty.” Id., at 313. I agree with Justice White that there are occasions when a Member of this Court has a duty to make judgments on the basis of data that falls short of absolute proof.

    Our decisions in 1976 upholding the constitutionality of the death penalty relied heavily on our belief that adequate procedures were in place that would avoid the danger of discriminatory application identified by Justice Douglas’ opinion in Furman, id., at 240–257 (concurring opinion), of arbitrary application identified by Justice Stewart, id., at 306 (same), and of excessiveness identified by Justices Brennan and Marshall. In subsequent years a number of our decisions relied on the premise that “death is different” from every other form of punishment to justify rules minimizing the risk of error in capital cases. See, e.g., Gardner v. Florida, 430 U. S. 349, 357–358 (1977) (plurality opinion). Ironically, however, more recent cases have endorsed procedures that provide less protections to capital defendants than to ordinary offenders.

    Of special concern to me are rules that deprive the defendant of a trial by jurors representing a fair cross section of the community. Litigation involving both challenges for cause and peremptory challenges has persuaded me that the process of obtaining a “death qualified jury” is really a procedure that has the purpose and effect of obtaining a jury that is biased in favor of conviction. The prosecutorial concern that death verdicts would rarely be returned by 12 randomly selected jurors should be viewed as objective evidence supporting the conclusion that the penalty is excessive.

    Another serious concern is that the risk of error in capital cases may be greater than in other cases because the facts are often so disturbing that the interest in making sure the crime does not go unpunished may overcome residual doubt concerning the identity of the offender. Our former emphasis on the importance of ensuring that decisions in death cases be adequately supported by reason rather than emotion, Gardner, 430 U. S. 349 , has been undercut by more recent decisions placing a thumb on the prosecutor’s side of the scales. Thus, in Kansas v. Marsh, 548 U. S. 163 (2006) , the Court upheld a state statute that requires imposition of the death penalty when the jury finds that the aggravating and mitigating factors are in equipoise. And in Payne v. Tennessee, 501 U. S. 808 (1991) , the Court overruled earlier cases and held that “victim impact” evidence relating to the personal characteristics of the victim and the emotional impact of the crime on the victim’s family is admissible despite the fact that it sheds no light on the question of guilt or innocence or on the moral culpability of the defendant, and thus serves no purpose other than to encourage jurors to make life or death decisions on the basis of emotion rather than reason.

    A third significant concern is the risk of discriminatory application of the death penalty. While that risk has been dramatically reduced, the Court has allowed it to continue to play an unacceptable role in capital cases. Thus, in McCleskey v. Kemp, 481 U. S. 279 (1987) , the Court upheld a death sentence despite the “strong probability that [the defendant’s] sentencing jury … was influenced by the fact that [he was] black and his victim was white.” Id., at 366 (Stevens, J., dissenting); see also Evans v. State, 396 Md. 256, 323, 914 A. 2d 25, 64 (2006), cert. denied, 552 U. S. ___ (2007) (affirming a death sentence despite the existence of a study showing that “the death penalty is statistically more likely to be pursued against a black person who murders a white victim than against a defendant in any other racial combination”).

    Finally, given the real risk of error in this class of cases, the irrevocable nature of the consequences is of decisive importance to me. Whether or not any innocent defendants have actually been executed, abundant evidence accumulated in recent years has resulted in the exoneration of an unacceptable number of defendants found guilty of capital offenses. See Garrett, Judging Innocence, 108 Colum. L. Rev. 55 (2008); Risinger, Innocents Convicted: An Empirically Justified Factual Wrongful Conviction Rate, 97J. Crim. L. & C. 761 (2007). The risk of executing innocent defendants can be entirely eliminated by treating any penalty more severe than life imprisonment without the possibility of parole as constitutionally excessive.

    In sum, just as Justice White ultimately based his conclusion in Furman on his extensive exposure to countless cases for which death is the authorized penalty, I have relied on my own experience in reaching the conclusion that the imposition of the death penalty represents “the pointless and needless extinction of life with only marginal contributions to any discernible social or public purposes. A penalty with such negligible returns to the State [is] patently excessive and cruel and unusual punishment violative of the Eighth Amendment .” Furman, 408 U. S., at 312 (White, J., concurring).

IV

    The conclusion that I have reached with regard to the constitutionality of the death penalty itself makes my decision in this case particularly difficult. It does not, however, justify a refusal to respect precedents that remain a part of our law. This Court has held that the death penalty is constitutional, and has established a framework for evaluating the constitutionality of particular methods of execution. Under those precedents, whether as interpreted by The Chief Justice or Justice Ginsburg, I am persuaded that the evidence adduced by petitioners fails to prove that Kentucky’s lethal injection protocol violates the Eighth Amendment . Accordingly, I join the Court’s judgment.

Thursday, March 25, 2010

Library Open House

Friends! Readers! Fort-Worthians!

On behalf of the staff of the Amon Carter Museum Library, I would like to invite you to the Library’s Open House next Thursday, April 1, 2010 from 4-7 PM. Jen and I will be there, as well as the crack library staff. We will be leading tours through the library’s collection, providing you with an inside look at how the Carter’s library functions, as well as some great selections from our collection (meaning: cool books)! Bring your friends and such, just RSVP to 817.989.5042, or to library@cartermuseum.org.

Hope you can join us!

Jason

Wednesday, March 24, 2010

Marfa!!

We have just returned- all connections restored. Stay tuned for more!

Return From Spring Break

Readers, we have returned from Spring Break! Jen took me on a surprise trip to Marfa, Texas. It was wonderful, and I look forward to sharing more with you all about it over the next few days. For now, let this video that I took at the Chinati Foundation speak for itself: