You are presented with multiple paper abstracts, alongside the associated literature review and chapter titles. Given the provided information, you are going to do a literature review. Please generate a coherent literature review that synthesizes the content, draws connections between different works, highlights major findings, and identifies any gaps in the existing research.

Literature Review Title: Energy big data: A survey 
Chapter Title:  B. INTEGRITY 
1. Abstract of Cited Paper (BIB001):  We model smart grids as complex interdependent networks, and study targeted attacks on smart grids for the first time. A smart grid consists of two networks: the power network and the communication network, interconnected by edges. Occurrence of failures (attacks) in one network triggers failures in the other network, and propagates in cascades across the networks. Such cascading failures can result in disintegration of either (or both) of the networks. Earlier works considered only random failures. In practical situations, an attacker is more likely to compromise nodes selectively. We study cascading failures in smart grids, where an attacker selectively compromises the nodes with probabilities proportional to their degrees, high degree nodes are compromised with higher probability. We mathematically analyze the sizes of the giant components of the networks under targeted attacks, and compare the results with the corresponding sizes under random attacks. We show that networks disintegrate faster for targeted attacks compared to random attacks. A targeted attack on a small fraction of high degree nodes disintegrates one or both of the networks, whereas both the networks contain giant components for random attack on the same fraction of nodes.

Literature Review:
Preventing unauthorized persons or systems modifying information is all about integrity. In the smart grid domain the integrity focuses on information such as sensor values, product recipes and control commands. Avoiding modification through message delay, message reply and message injection are also its relevant work. Security issues may be caused by the violation of integrity. Liu et al. BIB001 pointed out that the risk of integrity-targeting attacks in smart grid is indeed real. Compared to availabilitytargeting attacks, integrity-targeting attacks are less bruteforce but more sophisticated. Either customers' information or network operation information can be the objective of the integrity attacks. That is to say, modifying the original information deliberately and then corrupting critical data exchange in smart grid are the attempt of such attacks. Ruj and Pal BIB002 proposed a targeted attack model in power network where attackers attack nodes by removing them with probability proportional to the nodes' degree. Therefore, a node with higher degree will be removed with higher probability. In the power network, once a node with higher degree has been removed, the integrity of energy data collected by nodes will be affected more. Note ø k as the probability that a node i of k degree hasn't been removed: where V A is the nodes set in power network N A , α A is the power-law coefficient, m A represents the number of edges in N A , deg(i) = Ak −α A represents the degree of node i and α A = 0 means the random removal of nodes.