AP Adjacency as a Precedence Constraint

A Soft Global Precedence Constraint

Hard and soft precedence constraints play a key role in many application domains. In telecommunications, one application is the configuration of callcontrol feature subscriptions where the task is to sequence a set of user-selected features subject to a set of hard (catalogue) precedence constraints and a set of soft (user-selected) precedence constraints. When no such consistent sequence exist...

An Adjacency Constraint on Argument Selection

Precedence Constraint Posting for Cyclic Scheduling Problems

Resource constrained cyclic scheduling problems consist in planning the execution over limited resources of a set of activities, to be indefinitely repeated. In such a context, the iteration period (i.e. the difference between the completion time of consecutive iterations) naturally replaces the makespan as a quality measure; exploiting inter-iteration overlapping is the primary method to obtai...

Topological Dependency Trees: A Constraint-Based Account of Linear Precedence

We describe a new framework for dependency grammar, with a modular decomposition of immediate dependency and linear precedence. Our approach distinguishes two orthogonal yet mutually constraining structures: a syntactic dependency tree and a topological dependency tree. The syntax tree is nonprojective and even non-ordered, while the topological tree is projective and partially ordered.

Incremental Maintenance of Double Precedence Graphs: A Constraint-Based Approach

Reasoning on precedence relations is crucial for many planning and scheduling systems. In this paper we propose a double precedence graph where direct precedence relations are kept additionally to traditional precedence relations (A can directly precede B if no activity must be allocated between A and B). Such precedence relations are motivated by solving problems like modelling sequence-depend...