We’ve looked at the size of the public domain extensively in earlier posts.
The basic take away from the analysis was the finding that, based on library catalogue data, for books in the UK, approximately 15-20% of work was in the public domain — with public domain work being pretty old (70 [...]
Here we are going to apply the results on Public Domain “proportions” derived in our previous post and thereby obtain best estimates of the UK public domain.
The logic is simple, and similar to that in our first post in the series: we will take the Public Domain proportions from Table 3 [...]
Continues the series of post related to analyzing catalogue data, here are some stats on author “significance” as measured by the number of book entries (‘items’) for that author in the Cambridge University Library catalogue from 1400-1960 (there being 1m+ such entries).
I’ve termed this measure “significance” (with intentional quotes) as it co-mingles a [...]
Last week I was in Oxford to give a talk at the IP Seminar on “How Long Should Copyright Last?”. I have now posted the slides from the talk online.
In addition to covering the basic outline of the optimal term calculation, I was also able to give some results from the recent research [...]
This follows up my previous post. Here we are going to calculation public domain numbers based directly on authorial birth/death date information rather than on guesstimated weightings. We’re going to focus on the Cambridge University Library (CUL) data we used previously.
Pub. DateTotalNo AuthorAny DateDeath Date 1870-1880505646634 (13%)23016 (45%)21876 (43%) 1880-1890668578225 (12%)31135 (46%)28570 (42%) [...]In doing research for the EU Public Domain project (as here and here) we are often handling large datasets, for example one national library’s list of pre-1960 books stretched to over 4 million items. In such a situation, an algorithm’s speed (and space) can really matter. To illustrate, consider our ‘loading’ algorithm [...]
This post continues the work begun in this earlier post on “Estimating Information Production and the Size of the Public Domain”. Update: 2009-07-17 there is now a follow-up post.
Having already obtained estimates of the number of items (publications) produced each year based on library catalogue data our next step is to convert [...]
Here we’re going to look at using library catalogue data as a source for estimating information production (over time) and the size of the public domain.
Library CataloguesCultural institutions, primarily libraries, have long compiled records of the material they hold in the form of catalogues. Furthermore, most countries have had one or more libraries [...]
Background
I’m working on a EU funded project to look at the size and value of the Public Domain. This involves getting large datasets about cultural material and trying to answer questions like: How many of these items are in the public domain? What’s the difference in price and availability of public domain versus non [...]
I’m part of a team, led by Rightscom, which has won a bid to do a major analysis of the scope and nature of the public domain in Europe for the European Commission. As it says in the announcement:
We will assemble quantitative and qualitative data and produce a methodology for measuring the public [...]
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