NCR Corporation

About: NCR Corporation is a company organization based out in Lawrenceville, Georgia, United States. It is known for research contribution in the topics: Terminal (electronics) & Signal. The organization has 3541 authors who have published 4639 publications receiving 104291 citations. The organization is also known as: National Cash Register Company & National Cash Register.

Signature verification using a “siamese” time delay neural network

Abstract: This paper describes the development of an algorithm for verification of signatures written on a touch-sensitive pad. The signature verification algorithm is based on an artificial neural network. The novel network presented here, called a “Siamese” time delay neural network, consists of two identical networks joined at their output. During training the network learns to measure the similarity between pairs of signatures. When used for verification, only one half of the Siamese network is evaluated. The output of this half network is the feature vector for the input signature. Verification consists of comparing this feature vector with a stored feature vector for the signer. Signatures closer than a chosen threshold to this stored representation are accepted, all other signatures are rejected as forgeries. System performance is illustrated with experiments performed in the laboratory.

Building the data warehouse

Abstract: Y our company decides to build a data warehouse and you are designated the project manager. What are your first steps? You’ve read the books, attended the conferences, and perused the trade publications. Now you have to act. There are numerous vendors, all touting the wonders of their products, but you have specific questions that need specific answers, and building a data warehouse is an extremely complex process. Questions you have to weigh fall into the following general categories:

Method and apparatus for partitioning data for storage in a database

Abstract: A method and apparatus enables partitioning of data to efficiently store and retrieve data relating to a database system (either a parallel or non-parallel database system). Such partitioning may be performed by receiving information associated with at least one characteristic of the data and performing an algorithm to divide the data into related data segments. The data segments may be stored in a distributive database system based on the characteristic associated with the data.