Book call number lookup,find out phone number this is,public record exception - 2016 Feature

admin | Category: Buy A Phone Number | 23.03.2015
At Yale University Library (YUL), recorded reference transactions revealed that after finding a book in the catalog patrons had difficulty knowing how to use the call number to find the book on the shelf.
Setting: At YUL reference transactions revealed that patrons had a need for directional information in the library, especially to find books.
Develop the framework to accommodate, at least at a high-level, other classification and shelfmark schemes used in the Yale system, including SuDocs, Hicks and accession number-based collection items.
In practice only information found before the period or decimal point in call numbers were used in creating the maps and linking algorithm. Maps for other floors contain more detailed information and use more than the first letter of call numbers. With this information any call number of a book in Sterling Memorial Library can be matched to the appropriate map and box, and that map will display highlighting the correct box. The application that selects the correct map location given a call number consists of two parts: a web application that accepts RESTful URLs and an SQL database that stores some relational data. Two key arguments are needed in the web application: the location code of the item from the OPAC and the call number. When the call number lookup fails to find an associated map to display or when a map exists but the call number range does not fall onto the map stored, the patron is redirected to a URL with additional information. After initial testing, we decided to also pass the unique record number of the item to the mapping service so that we can display a link back to the catalog. Finally, to create the kiosk for patrons who had written down a location and call number and were in the Sterling Memorial Library but weren’t sure which floor to go to, we coded a simple web form.
In the fall semester 2010, 7.3% of all questions at the Information Desk at Sterling Memorial Library were questions relating to finding a specific call number. In fall 2010, 7.3% of all questions at the Sterling Info Desk dealt with finding a particular call number. He first divided knowledge into ten general classes, and then each of those into ten more classes, giving one hundred total classes and so on, always subdividing by ten, as described in the 1876 work A Classification and Subject Index for Cataloguing and Arranging Books and Pamphlets of a Library [4].
While no new books are given a call number using  Yale classification, older materials remain in the collection with their original Yale class call numbers.
The implementation team worked from maps used by staff which indicated call number ranges in the stacks. In some cases only the first letter was used along with information about whether a book is oversize or not (indicated by a plus sign). Map for Floor 1MB shows blocks for smaller call number ranges, with the range PS highlighted. In the StackMap table every call number box is assigned an arbitrary identifying number and the file name and location for the corresponding floor map image.


The page linked for call numbers of items in the Beinecke Rare Book & Manuscript Library, a library without open stacks and no associated stack maps. This allows patrons to request staff paging of an item if they decide not to follow the map and retrieve the book themselves. Future development will include using the same lookup for other types of resources such as reading rooms, special collections and restrooms outside of the stacks areas. From any call number of a book in Sterling Memorial Library at YUL, a map will be displayed which highlights that call number’s general area on a floor in the stacks. A number of factors contributed to the problem: signage was poor or nonexistent, some parts of the collection were tucked away in small reading rooms, and two call number systems (Library of Congress and Yale Classification) added to general confusion. Dewey extolled the simplicity of his system, and also claimed that it would allow books in a topic to be generally kept together in a library, aiding any patron wishing to discover material by simply browsing a section in the library. In addition the large YUL system involves many buildings and special collection locations which must be evaluated along with call numbers to determine actual locations. Early in the project a decision needed to be made about how precise the maps should be in depicting call number ranges. In the case of the floor 5M (Figure 1), only the first letter is used because relatively small numbers of books are found in these ranges, so a single range may have material for BA, BC, BD and so on. For example in the map in Figure 2, there are seven boxes, and the PT-PZ box might be internally labeled number 2. There are some blocks that require more than one rectangle to be drawn because the stacks for that call number range are L shaped or spread out in different areas of a floor. The main file, default.aspx displays an image GIF file showing the map of the floor the item is on and CSS is used to place a DIV over the map which highlights (25% opacity) the matching call number box.
Where SML is the building code for the library, 1MB is the floor and 1 is the boxed section of the map containing the call number.
More publicity for the mapping functionality and the iPad kiosk should further help reduce the number of requests. The call number maps will also be used to help students find work carrels near their subject areas, something students have told us they want.
A patron who found a record in the online catalog would know the library (Yale has eighteen) and the call number but no information that would help the patron decode the call number to find it on the shelf (there are 15 floors of stacks in the largest library).
The Library of Congress created a different system using letters instead of numbers to signify broad topical areas [5].
Even taking into account the two classification schema and numerous YUL  locations it is still fairly straightforward to follow a set of rules in sequential order to decode any call number for a book in the Yale Library system and determine its general physical location. That box 2 is then linked to all the call number ranges in it, from the “smallest” call number to the largest thusly: PT0000 to PT99999, PU0000 to PU99999, PV0000 to PV0000, PW0000 to PW9999, PX0000 to PX9999, PY0000 to PY9999 and PZ0000 to PZ9999, even though there may not be any books currently in some of these ranges, every eventual possibility is covered.


Once this was determined it was simply a matter of adding code to the Yufind bibliographic display template to build a call to the mapping web service.
Based solely on the reduction in requests for help finding call numbers in Sterling Memorial Library the improved mapping can be judged successful and worth replicating elsewhere in the Yale Library system. Finally, staff are interested in reversing this project, providing QR codes near call number ranges which will lead patrons to virtual shelf browsing in the catalog, another feature patrons have requested.
A very imprecise but simple approach would have shown the floor for the book with no details about call number sections within the floor.
Thus not much information is used beyond that the floor is 5M and the location of “A” call numbers versus “B” call numbers.
The “chunking” approach aims to get the patron close enough to use the call number guides found on the end of every range of shelves. This meant building a URL that contained the location name and the call number, properly encoded. At Yale University Library (YUL) it was apparent from recorded reference transactions that, after finding a book in the catalog, patrons had difficulty knowing how to use the call number to find the book on the shelf. This ability was used in the project described here to help the patron move from a call number in the online catalog, to the correct map of that books floor location, and to the appropriate section of that floor, all through the use of its assigned call number (both LC and Yale). A medium approach was chosen for this project, in which fairly large sections within a floor are shown with their call number ranges. Library staff realized that the logic of the call number lent itself to a computer algorithm to help locate sets of call numbers, and that linking call number maps of the library’s stacks from the online catalog would be an effective mobile service to offer patrons. Given any call number of a book in Sterling Memorial Library at YUL, a map will be displayed which highlights that call number’s general area on a floor in the stacks. YUL introduced the mapping application in Yufind, a catalog in place at Yale since 2008 which is based on the Vufind catalog developed at Villanova [1].  The maps are linked from each record in the Yufind catalog and the legacy Voyager catalog (called Orbis), and also from an iPad kiosk, where a patron can enter a call number and access the same maps.
The algorithm checks for special cases such as oversized items and folios, which may be indicated by special characters or keywords in the call number. The mapping applications have helped reduce the number of questions about finding call numbers at the Sterling Memorial Library Information Desk by 20.6%. With the classification scheme, oversize information, and the first letters and numbers of the call number it is possible to determine which map the call number belongs to. This article describes how maps were designed, the logic behind the application, use of YUL’s classification system, and how the algorithm was built using a web application that accepts RESTful URLs and an SQL database that stores relational data about the book locations, call numbers and maps.



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