Optimizing meeting scheduling in collaborative mobile systems through distributed voting

Planning individual activities through an intelligent calendar

“…" We also present SelfPlanner 2.7, a prototype electronic calendar application that utilizes the research produced in this thesis, to produce a prototype for our vision of the electronic calendar of the future. SelfPlanner, which can be used either as a stand-alone electronic calendar application, 5 or through an Application Programming Interface (API) for use by other electronic calendar applications and programs. It greatly simplifies the problem model (as presented in Section 1.1), and provides a higher-level view of it to the user (both the end-user using its client 6 and the programmer using its API).…”

“…To solve CSP problems, we combine search methods using heuristics (such as picking the most constrained variable, the least constrained etc. ), 5 to partition the search space into smaller sub-spaces, with constraint propagation to exclude invalid solutions from the search space [119]. To do constraint propagation we have to decide what level of consistency we want to enforce (i.e., node consistency and arc consistency).…”

“…To model the utilization constraints 5 we add auxiliary variables for all the time points in the domain that have a value equal to the sum of all utilization values of all overlapping activities scheduled at that time point. These variables are constrained not to have a value exceeding the unit (i.e., if an activity has utilization i = 1, meaning that it cannot be overlapped, that limit is reached for the time points where the said activity is scheduled).…”

“…There are 4 locations, with random subsets of them assigned to the activities. Activity utilities are selected from the interval [5,12], temporal preference utilities from the interval [5,10] and duration utilities from the interval [2,5]. All utilities assigned to binary preferences are selected from the interval [1,3].…”

“…Figure 5-2 gives an overall view of the system, with the main windows open. 5 The main entity of the system is the "task." Using suitable user interface modules, the user can define all the parameters of a task, because they have been described in Section 1.1.…”