There are many situations in mathematical programming where cutting planes can be generated by solving a certain “cut generation linear program” whose feasible solutions define a family of valid inequalities for the problem at hand. Disjunctive cuts and Benders cuts are two familiar examples. In this paper we concentrate on classical Benders cuts, as they belong to the basic toolbox for mixed-i...

The use of electronic textbooks (e-book) has been heavily studied over the years due to their flexibility, accessibility, interactivity and extensibility. Yet current shortcomings of ebook, which is often just a digitized version of the original book, does not encourage adoption. Consequently, this leads to a rethinking of e-book that should incorporate current technologies to augment its capab...

As the use of electronic textbooks continues to expand and we approach the point where dominance of digital over print is becoming increasingly inevitable (Reynolds, 2011), research is needed to understand how students accept and use the technology. This is especially critical as we begin to explore the electronic format for required textbooks in higher education. The current study evaluates un...

In [13] Dutch government proposes an identity scheme supporting personal data exchange of pupils with private e-textbook publishers. This design propagates sharing personal numbers of pupils among private parties violating the data minimisation principle in privacy laws. We describe a privacy friendly alternative, giving pupils (and parents) control on exchange of their personal data. Three gen...

This paper evaluates the e-book usage and information seeking and reading behaviour of thousands of business and management students. Comparisons are made with students in other subjects. The data largely come from the Joint Information Systems Committee (JISC)-funded National e-Books Observatory (NeBO) project as well as the JISC User Behaviour Observational Study. The main sources of data wer...

The abundance of knowledge-rich information on the World Wide Web makes compiling an online e-textbook both possible and necessary. In our previous work, we proposed an approach to automatically generate an e-textbook by mining the ranked lists of the search engine. However, the performance of the approach was degraded by Web pages that were relevant but not actually discussing the desired conc...

genetic relationship between predisposition to schizophrenia and heredito-constitutional resistance to tuberculous infection." Dr. Shuttleworth doubts that the author's figures warrant this claim as they show a decline of the death rate of tuberculosis at a rate to be expected in any population. To me, the author seems to make a very bold guess when he regards it probable that the common origin...