  Uniform hypergraphs have a natural one-to-one correspondence to tensors. In
this paper, we investigate the Estrada index and subgraph centrality of an
$m$-uniform hypergraph $\mathcal{H}$ via the adjacency tensor. We establish
some bounds for the Estrada index and give expressions of the subgraph
centrality in terms of graph parameters of the multi-digraphs associated with
$\mathcal{H}$. When $\mathcal{H}$ is $2$-uniform, the above Estrada index and
subgraph centrality are the Estrada index and subgraph centrality of a graph.
