## What is temporal graph?

A temporal graph is a graph in which the edge set can change from one time step to the next.

## What technique is used to graphically represent cost both positive and negative over a period of time?

Line graphs are usually used to represent changes over time.

**What does the presence function in a time varying graph indicate?**

ρ : E ×T →{0, 1}, called presence function, indicates whether a given edge is available at a given time. ζ : E ×T → T, called latency function, indicates the time it takes to cross a given edge if starting at a given date (the latency of an edge could vary in time).

### Is a graph composed of function nodes and delay edges?

The DSP implementation in the folding algorithm is a Data flow graph(DFG), which is a graph composed of functional nodes and delay edges.

### What is spatial graph?

Spatial graphs are defined by having nodes with spatial locations, usually given by coordinates in one, two or three dimensions. This small modification to aspatial graphs has profound effects on how these graphs are used and interpreted.

**What is dynamic graph neural network?**

A dynamic graph evolves over time and can be seen as a sequence of timed events. In the above pictures, different events occur at timestamps t₁ to t₄. This stream of events is ingested by an encoder neural network that produces a time-dependent embedding for each node of the graph.

## What graph is used to present data over a period time?

Line graph

. . . a Line graph. Line graphs are used to track changes over short and long periods of time. When smaller changes exist, line graphs are better to use than bar graphs. Line graphs can also be used to compare changes over the same period of time for more than one group.

## Which graph works best in showing change over time compare the graphs used?

Line graphs are used to display data or information that changes continuously over time. Line graphs allow us to see overall trends such as an increase or decrease in data over time. Bar graphs are used to compare facts.

**What is network in spatial analysis?**

The term spatial analysis along networks refers to a set of methods or techniques for analyzing events that occur along networks (Okabe and Sugihara 2012).