منابع مشابه
Surveying Data for Patchy Structure
The term “data surveying” refers to the preliminary examination of a dataset to assess its overall character, and this process typically involves simple descriptive statistics to characterize the available variables, along with detection of data anomalies (e.g., outliers or incomplete records) and possibly other “interesting” or “unusual” features that may be worthy of careful scrutiny. In the ...
متن کاملActive Surveying
Opinion leaders play an important role in influencing people’s opinions, actions and behaviors. Although a number of methods have been proposed in literature for identifying influentials using secondary sources of information, the true set of opinion leaders revealed through primary sources, such as surveys, is still favored in many domains. In this work, we present a new active learning method...
متن کاملHybrid Heuristic Algorithm for GPS Surveying Problem
This paper introduces several approaches based on ant colony optimization for efficient scheduling the surveying activities of designing satellite surveying networks. These proposed approaches use a set of agents called ants that cooperate to iteratively construct potential observation schedules. Within the context of satellite surveying, a positioning network can be defined as a set of points ...
متن کاملQuery-driven Active Surveying for Collective Classification
In network classification problems such as those found in intelligence gathering, public health, and viral marketing, one is often only interested in inferring the labels of a subset of the nodes. We refer to this subset as the query set, and define the problem as query-driven collective classification. We study this problem in a practical active learning framework, in which the learning algori...
متن کاملThe Lambda-method for Fast Gps Surveying
Fast and high precision relative GPS positioning based on short observation time span data is possible, when reliable estimates of the integer double difference ambiguities can be determined in an efficient manner. In the present contribution it will be shown how this can be achieved by means of the Least-squares AMBiguity Decorrelation Adjustment (LAMBDA). The method was introduced in [Teuniss...
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ژورنال
عنوان ژورنال: Nature
سال: 1908
ISSN: 0028-0836,1476-4687
DOI: 10.1038/078391a0