cleanfeed and wikipedia
Ian Batten
ukcrypto at chiark.greenend.org.uk
Wed, 10 Dec 2008 10:21:15 +0000
On 10 Dec 08, at 0821, Roland Perry wrote:
> In article <493EF0D4.3080707@ernest.net>, Nicholas Bohm <nbohm@ernest.net
> > writes
>>> You are going for the "vacuum" theory, which I believe to be
>>> unsustainable.
>>
>> No, I'm not going for a theory, I'm asking for facts.
>
> "The reports received via the IWF internet 'Hotline' are
> assessed by Internet Content Analysts (ICAs) who have
> comprehensive and in-depth training on relevant UK legislation
> by the appropriate UK police personnel"
Let's assume that they are trained, by a combination of rigourous
checklists and a pre-assessed collection of examples, so that their
assessments will align with those a court would give to a reasonable
extent. It's like risk assessment frameworks: the best you can hope
for is that the same assessment done by different people will cluster
with a reasonably normal distribution.
That still doesn't explain the training on relevant UK legislation
that would have been involved in yesterday's decision to remove the
image at hand from the black list.
The IWF had previously been process-driven, which made allegations of
bias and general badness hard to sustain. Their assessors acted as an
oracle for PoCA 1978 and other legislation, and that was used to
accept or reject reports for inclusion in the black list. The process
was very simple: take a report, test it with the PoCA oracle, then
either include it in the blacklist or drop it on the floor.
If you had a feed of the complaints they received, and a similarly
capable oracle, you would be able to construct a blacklist that was,
plus or minus, the same. That's the test of a reproducible process:
given the inputs, the documentation and the trained staff, you can
produce a similar output. The definition of `similar' is the stuff
that keeps auditors in work.
And that oracle can be independently constructed: I'd be fairly
confident that with the co-operation of the police, you could train a
group of people who had never met an IWF employee to produce the same
decisions, +/- 10%.
As of yesterday, however, that all changed. The process is now that
reports are processed by the oracle to determine legality, and then re-
processed by the board of directors with no published criteria. You
now can't replicate their work: there's a black-box on the output
which you can't reproduce. No external body can predict the decisions
that IWF will make when confronted with a given case.
As I said last night, I think the IWF have reached the right outcome
by entirely the wrong route, and everyone will live to regret it.
They've admitted a whole stack of criteria --- availability, age,
collateral damage --- which are not in the legislation, not in their
charter and not codified anywhere. They've taken something that was,
outside a small pool of people, uncontentious and given it a political
dimension that was previously missing.
ian