As it is well-known, querying and managing structured data in
natural language is a challenging task due to its ambiguity
(syntactic and semantic) and its expressiveness. On the other hand,
querying, e.g., a relational database or an ontology-based data
access system is a well-defined and unambigous task, namely, the
task of evaluating a formal query (e.g., an SQL query) of a limited
expressiveness over such database. However these formal query
languages may be difficult to learn and use for the casual user and
ambiguity may compromise the interface. To bridge this gap, the use
of controlled language interfaces has been proposed. As a measure
of their efficiency for data access, we propose to consider data
complexity, which is the complexity of query evaluation measured in
the size of the data. We study a familiy of controlled languages
that express several fragments of OWL, ranging from tractable
(LogSpace and PTime) to intractable (coNP-hard) in data complexity,
singling out which constructs give rise to each computational
property.

U3A in Nottinghamshire Brochure

The brochure on the 'U3A in Nottinghamshire' can be downloaded, printed and used as publicity material at events or libraries. Click on the cover page image below to view(or click on 'Download File' below the image to download a pdf copy to print from).

Compromised

03.14.11

Hackers Dump Bank of America Docs

Paul Sakuma / AP Photo

Hackers from Anonymous posted documents they claim reveal fraud at Bank of America—though they’re a little difficult to get your head around. The emails from an employee at Balboa Insurance, which used to be owned by Bank of America, appear to show Balboa employees intentionally removing tracking info from loan documents. (Remember that much of the controversy over foreclosures has to do with improper documentation.) Anonymous has posted the documents at
BankofAmericaSucks.com. It is unclear if the documents are connected to the rumored Bank of America documents that WikiLeaks is sitting on.

Thanks very much for t