Are you almost certain you saw something on the Dewey blog that would help you with the resource you’re trying to classify, but you’re not sure where to find it now? How can you search the Dewey blog to retrieve something that was posted there in the past?
Several ways of searching the Dewey blog are available:
- Search by date
- Search by category
- Search by keyword
The sidebar on the left facilitates access to archived posts (i.e., entries posted prior to the current month) by date. While only the last ten months are listed in the sidebar, clicking ARCHIVES will give you access by month all the way back to the beginning of (Dewey blog) time, that is, June 2005. Clicking the name of a month then returns all the posts from that month. Search by date thus supports comprehensive access to everything ever posted on the Dewey blog, but, frankly, the occasions on which searching by date is efficient will be few and far between.
The sidebar on the right facilitates access to Dewey blog posts by category. Of course, a blog about a classification scheme would classify its posts. And, of course, a blog about the Dewey Decimal Classification would provide access to its posts by Dewey number. Hence the most widely used Dewey blog categories are the Dewey main classes. Clicking 000-099 Computer science, information & general works, for instance, will return blog posts on digital media, personal bibliographies and biobibliographies, NoSQL databases, big data, informatics, natural computing, and mobile computing devices, plus numerous other posts in which Dewey numbers in the range 000–999 play a less central role. (We have talked a little about re-doing some of the other categories, so don’t be surprised to see a blog post on that issue sometime later.)
But what about keyword search? In the past, you had only one option—use an external search engine (e.g., Google) for a keyword search of the Dewey blog. For example, searching site:ddc.typepad.com "big data" in Google will return links to the Dewey blog posts on big data and NoSQL databases mentioned above, as well as to a post on 3D printing.
You can now also enter your keyword search in the Google search box at the top of the sidebar on the left of the Dewey blog home page. Entering “big data” (as a phrase search) in the search box will return a few ads and links to the three blog posts mentioned above.
Because searches on Google incorporate automatic stemming, entering cook in the search box will return posts using various forms of the word, e.g., cook, cooks, cooking, cooker; if you really want to search for just cook, enter it as a phrase search: “cook”.
Note that automatic stemming is restricted to word forms and does not extend to searching on DDC notation. Searches like the following will work:
But a search on 641.5 will not retrieve a post containing 641.568 unless the post also contains 641.5 (which happens to be the case when 641.568 appears as 641.5/68).
For all practical intents, you can now perform the same searches and retrieve the same output by doing a Google search inside the Dewey blog as by searching Google independently of the blog. How cool is that?