apriori algorithm is the most popular algorithm in association rules mining. one of the problems the apriori algorithm is that the user must specify a minimum support threshold. consider that a user wants to implement the apriori algorithm on a database with millions of transactions; users will not have the necessary knowledge about all the transactions in the database and therefore cannot dete...

In this papec we propose a language, called Hierarchical Temporal Logic (HTL), for specifying queries on video databases. The language is based on the hierarchical as well as temporal nature of video data. We give similarity based semantics for the logic, and give efficient methods for computing similarity values for subclasses of HTL formulas. Experimental results, indicating the effectiveness...

This paper describes a semi-dynamic CMOS flip-flop family featuring embedded Threshold Logic functions. First, we describe the new Threshold Logic flipflop concept and circuit operation. Second, we present the concepts of embedded Threshold logic and run-time reprogrammability. Finally, it is proved by Spice simulation results that wide (up to 8 inputs) AND/OR Boolean functions can be embedded ...

A voting scheme constitutes an essential component of many fault tolerant systems. Two types of voters are commonly used in applications of real-valued systems: the inexact majority and the amalgamating voters. The inexact majority voter effectively isolates erroneous modules and is capable of reporting benign outputs when a significant disagreement is detected. However, an application specific...

Mechanical, magnetic, and transport properties of arbitrary inhomogeneous composites are investigated by a Bruggeman-type mean-field approach. The theory yields materials parameters as functions of the volume fractions, geometries, and materials constants of the phases. Each system is described by a single response parameter g, which is equal to the percolation threshold of the composite. For m...

One of major implementations of Linear Threshold Gate (LTG) is via resonant tunneling diodes (RTD). The functionality of this threshold logic gate greatly depends on the parameters of the RTD and parametric faults impact its functionality. A suitable fault model for Combinational Threshold Logic gates is presented. A methodology is also developed to generate test patterns that detect these para...

A threshold-logic gate device consisting of subthreshold MOSFET circuits is proposed. The gate device performs threshold-logic operation, using the technique of current-mode addition and subtraction. Sample digital subsystems, i.e., adders and morphological operation cells based on threshold logic, are designed using the gate devices, and their operations are confirmed by computer simulation. T...