How Are You Finding Information?

 

By: Lynda Bourne

We now live in an age where Google search is ubiquitous, and the “find” function in Word and PDF documents is almost instantaneous. The challenge for most people is sorting through the long lists of information returned from a search to locate the most useful items. This was not always the case. As Dennis Duncan—a British writer, translator and lecturer—set out in his book Index, A History of the: A Bookish Adventure[1], the need for indexing first emerged in the 13^th century and has been evolving ever since.

There are basically two indexing systems. The simplest is a listing of the important words that occur in a reference book, identifying the pages or sections in which the word is used. The more complex system is built around topics and identifies the section of a book in which the topic is discussed, often indexing multiple publications. Both systems were developed around the year 1230, and marks the change from a time when books were a valued artifact to be read and enjoyed, to one where books became an information repository to be used as a resource. The invention of the printing press would not occur for another 200 years (1440), so in 1230 books were an incredibly valuable resource in limited supply.

The word “index” was invented in Paris by a Dominican Abbot named Hugh of Saint-Cher. The Dominicans are a preaching or mendicant religious order, founded in 1216. Their calling was to have Friars live among the people in big cities and preach sermons to stop the flock from going astray.

To help his Friars write their sermons, Saint-Cher instructed a group at the Dominican Friary of Saint-Jacques to create a word index, or a concordance, of the Bible. Every single word in the Bible was put in alphabetical order with a locator indicating where that word appears. The friars listed about 10,000 individual words and 129,000 locations. As a consequence of this work (that still exists), the preaching Friars writing new sermons were able to find the information they needed reliably and consistently.

A parallel driver for indexing was the creation of universities, with Oxford being one of the earliest. Robert Grosseteste, a medieval English scholastic philosopher, taught at Oxford until his appointment as Bishop of Lincoln in 1235. Grosseteste read widely, and to help locate materials for his lectures, invented an indexing system based on symbols made up of curved and straight lines, circles, E-shapes, etc., which were added as annotations in each of his books. Different symbols represented different subjects, and in a separate general index he kept a record of where they were located. The result was a kind of parchment Google—once he's read and annotated a book, he knew where information on a subject was for future reference. This type of index is still called a general index.

In the 13^th century, very few people could read, and books were scarce, making the oral delivery of information vital either as a lecture or a sermon. But delivering a lecture (or sermon), required information to be sourced, organized, synthesised and written down in preparation for the delivery. This means the presenter needed to use books—not just read books, but to be able to go back and use the contents of books as an information resource.

Engaging with a book transitioned from being a linear process where the reader had all the time in the world to journey from end to end, to one where books became seen as storehouses of morsels of information. The invention of indexes allowed people to use and research their books more efficiently, enabling them to preach or lecture at short notice.

800 years later, these concepts are still evolving. Unfortunately, the traditional concept of indexing is rapidly disappearing. The fundamental requirement for an index is a page number, and e-books don’t have set pages; the page a word appears on changes depending on the font size and screen size selected by the reader. This is a pity; creating a good index is both an art and a craft, requiring interpretation and judgement to look at each passage and decide what words a person would use to look for that specific text.

On the other hand, Robert Grosseteste’s concept of the general (or subject) index has moved from the world of academia to mainstream. Google indexes millions of pages of new information every day. Both Google and the various feeds to your PDA index then select what you see based on the topics you are interested in, filtered by the application of a liberal dose of artificial intelligence (AI).

The challenge for everyone in the modern era is being able to filter and validate the thousands of returns from a typical Google search and to make sure their feeds are not too limited. The various systems will order the information you see in a way its AI systems calculate will give you the best experience. But best from the system’s perspective is that you like the result and will therefore use it again. This is not the same as offering the most accurate selection of information, particularly if there are contradictory viewpoints.

How reliable do you find the search engines and indexes you use to find information?

[1] Index, A History of the: A Bookish Adventure, Duncan, D. Allen Lane, UK, 2021. ISBN: 9780241374238