نتایج جستجو برای: truth discovery
تعداد نتایج: 162764 فیلتر نتایج به سال:
This paper discusses the problem of knowledge discovery in image databases with particular focus on the issues which arise when absolute ground truth is not available. The problem of searching the Magellan image data set in order to automatically locate and catalog small volcanoes on the planet Venus is used as a case study. In the absence of calibrated ground truth, planetary scientists provid...
A fundamental problem in data fusion is to determine the veracity of multi-source data in order to resolve conflicts. While previous work in truth discovery has proved to be useful in practice for specific settings, sources’ behavior or data set characteristics, there has been limited systematic comparison of the competing methods in terms of efficiency, usability, and repeatability. We remedy ...
We present a decision-theory based approach for efficiently sampling information sources in resource-constrained environments, where there is uncertainty regarding source trustworthiness. We exploit diversity among sources to stratify the population into homogeneous subgroups to both minimise redundant sampling and mitigate the effect of certain biases (e.g., source collusion). After presenting...
Air pollution has become a global concern for many years. Vehicular crowdsensing systems make it possible to monitor air quality at fine granularity. To better utilize the sensory data with varying credibility, truth discovery frameworks are introduced. However, in urban cities, there is significant difference traffic volumes of streets or blocks, which leads sparsity problem discovery. Protect...
The fifth-generation (5G) cellular network is expected to provide submeter positioning accuracy without draining the battery of user equipment (UE). As a solution, ultradense (UDN) deployment and network-based were proposed. However, openness UDN vulnerability devices [e.g., access nodes (ANs)] make it easy for attackers poison such system. no existing work explores how overcome this issue. Thi...
Scientific discovery is about a search for the Truth, for the consistent and predictable in how the universe works. Using a particular method of inquiry, the scientific method, and with acknowledgement of the inherently self-correcting nature of science, scientific inquiry moves forward incrementally to ever closer approximations of the Truth. This paper reviews the history of scientific inquir...
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