Испытания JS на scalability проведены успешно. Двух-уровневое дерево с 828-ю нодами рендерилось в FF3 полчаса. Я уже говорил, что JS – говно?

Теперь я понял, почему все так любят слать запросы на сервер в ленивом режиме. Потому что бодрячковый подход – это пипец, своп FF3 до гигабайта доходил, плюс 100% занятости одного ядра. Слава богу, у меня их четыре.

Пора оптимизировать клиентский код :)

PS что радует – сервак даже не поперхнулся.

https://www.clicktoattend.com/invitation.aspx?code=134621

Learn how to create, visualize, analyze and interact with spatial data using the latest Microsoft .NET technologies, like WPF and Silverlight, Virtual Earth and SQL Server 2008. In this presentation, we’ll walkthrough building a Rich Interactive Mapping application from the ground up using MapDotNet UX.

Watch a demonstration of how easy it is to create data and maps using MapDotNet UX Studio. We’ll explore loading spatial data into SQL Server 2008, authoring and publishing a map to the MapDotNet UX Web Services, and creating a tile cache using MapDotNet UX Studio.

Following the data and map creation, we’ll use the MapDotNet UX SDK and the out-of-the-box samples to rapidly build a WPF and Silverlight application using the Expression Blend and Visual Studio 2008. From there you’ll have the power create applications with incredible “User eXperiences” for visualizing, analyzing and interacting with your world!

Dr. Martin Raubal, Associate Professor
Department of Geography
University of California, Santa Barbara

Wednesday, October 22, 2008 4:00 p.m.
ESRI Fourplex

“Personalized Location-Based Services”
In recent years there has been a paradigm shift in GIScience. Previously, GIS were used by large organizations to support them in their decision-making processes. Nowadays, multiple providers offer services capable of exploiting the location of a mobile user and sell geographic information to many people in small quantities. Because users frequently face novel situations in unfamiliar environments, their information needs depend highly on situational and personal context. Current location-based services (LBS) are limited because they fail to adapt the semantics of their concepts to the users’ semantics, and they often do not consider personal preferences and time constraints. In this talk I will demonstrate through prototypical mobile applications how the integration of theories from cognitive science and geography can overcome these problems. First, a wayfinding service is used to show how formal conceptual spaces can be utilized to bridge the gap between system and user. Conceptual spaces are employed for both knowledge and context representation. Second, using business traveler and leisure scenarios I will argue that in order to provide users with personalized information for their mobile decision-making, a user-centered spatio-temporal theory of LBS is required. This theory combines time geography with an extended theory of affordances. It allows for a user-centered perspective because affordances describe action possibilities with respect to a specific person. Time geography supports the calculation and visualization of optimal paths. The new theory for LBS is closer to the individual users and more plausible with respect to their daily lives.

Надо посетить. Вдруг чего новенького скажет.