In the last post I introduced a data structure and algorithm to implement a concurrent memory efficient long set and long-to-long map. The long set can be regarded as some kind of compressed bitset. This post focuses on adding the classic bitset operations for union (or), intersection (and) and difference (and-not).
Persistent data structures got a boost because using locks for synchronizing access to data proved to be error prone and cumbersome. We are not talking about database persistence here, but instead about immutable data structures that provide a type of copy-on-write semantics to allow for concurrent reads while performing concurrent data updates (see http://en.wikipedia.org/wiki/Persistent_data_structure and http://de.wikipedia.org/wiki/Copy-On-Write).
The information age has not only begun. In the meantime, we are right in the midst of it. This is not a fad, a short-lived trend, but an irreversible development that is picking up speed and increasing relevance - with consequences for each individual, for companies and for society as a whole.
Dieter Reichert, censhare CCO, draws a link between the industrial age and the information age in his talk "How technology changes our lives", pursuing the question of how information technology impacts on the structure of companies.
Brian O´Really screencast Context first: A unified field theory of publishing gives a brilliant account of the ongoing changes in the publishing industry. The author addresses questions concerning the future of traditional media such as magazines or newspapers and also shows how the marketing and the publishing industry are increasingly converging.
For the past two years, censhare solutions have been implemented at McCann Erickson and have achieved cost and time savings of up to 20%. Ralf Menikheim, Head of Handling Agency, and Dieter Reichert, CMO of censhare, spoke about stepping up cooperation, the demands made on the agencies of the future and on the significance that creativity will hold in the future. (Interview in German language)
Day after day censhare meets and interacts with people with exceptional opinions, viewpoints and perspectives, whether on the future of communication, media and publishing or simply on the issues of our time. Our dialogs introduce you to interesting personalities and opinions. See and listen in our first dialog to Johannes F. Woll, founder and manager of “Schweizer Degen. Media & Publishing Consulting“, about the future of publishers: „Publishing houses and media companies will have to part with the concept that content is the viable business model of the future.“
In client-server applications there's often the need to transfer files between both parties. This blog shows how to implement a file transfer using remote capable input and output streams and how to improve the performance in WAN scenarios where network connections even with good bandwidth still suffer from high latency.
