Landslide Susceptibility Assessment using Skyline Operator and Majority Voting

The Skyline Operator

We propose to extend database systems by a Skyline operation. This operation filters out a set of interesting points from a potentially large set of data points. A point is interesting if it is not dominated by any other point. For example, a hotel might be interesting for somebody traveling to Nassau if no other hotel is both cheaper and closer to the beach. We show how SQL can be extended to ...

General Spatial Skyline Operator

With the emergence of location-aware mobile device technologies, communication technologies and GPS systems, various locationaware queries have attracted great attentions in the database literature. In many user recommendation systems, the spatial preference query is used to suggest the objects based on their spatial proximity to the facilities. In this paper, we study the problem of general sp...

Voting on Majority Rules∗

We analyze an overlapping generations model of voting on “reform projects”. These resemble investments in that they first require some investment expenditure and later pay off. Since the time during which old people get the benefit is shorter, or because older people are more wealthy and hence pay more taxes, they are more conservative (against reforms) than young people. We show that if people...

Iterated Majority Voting

We study a model in which a group of agents make a sequence of collective decisions on whether to remain in the current state of the system or switch to an alternative state, as proposed by one of them. Examples for instantiations of this model include the step-wise refinement of a bill of law by means of amendments to be voted on, as well as resource allocation problems, where agents successiv...

Assessment of landslide susceptibility, semi-quantitative risk and management in the Ilam dam basin, Ilam, Iran