Li, JiaPlaisant, CatherineShneiderman, BenPlacing numerous data objects and their corresponding labels in limited screen space is a challenging problem in information visualization systems. Extending map-oriented techniques, this paper describes static placement algorithms and develops metrics (such as compactness and labeling rate) as a basis for comparison among these algorithms. A control panel facilitates user customization by showing the metrics for alternative algorithms. Dynamic placement techniques that go beyond map-oriented techniques demonstrate additional possibilities. User actions can lead to selective display of data objects and their labels.en-UStimelinesdata object placementlabel placementinformation visualizationcontrol panelmetricsvisual feedback,Technical Report