Extraction and utilization of high-level semantic features are critical for more effective video retrieval. However, the performance of video retrieval hasn’t benefited much despite of the advances in high-level feature extraction. To make good use of high-level semantic features in video retrieval, we present a method called pointwise mutual information weighted scheme(PMIWS). The method makes...

We describe and compare different methods for creating a dictionary of words with their corresponding semantic orientation (SO). We tested how well different dictionaries helped determine the SO of entire texts. To extract SO for each individual word, we used a common method based on pointwise mutual information. Mutual information between a set of seed words and the target words was calculated...

In this paper we consider the problem of extracting secret key from an eavesdropped source pXYZ at a rate given by the conditional mutual information. We investigate this question under three different scenarios: (i) Alice (X) and Bob (Y) are unable to communicate but share common randomness with the eavesdropper Eve (Z), (ii) Alice and Bob are allowed one-way public communication, and (iii) Al...

financial literacy of investors reduces uncertainty on future decisions and increases predictability of investment policies in financial markets. thus, the lack of clear information on financial markets is a determining factor in the arrival of domestic and foreign capitals and their quick exit in case of crisis. the lack of transparency and basic knowledge on decisions and failure to provide r...

one of the main functionalities of capital market is to enhance liquidity in the market. mutual funds are modern financial institutions which are designed with the aim of absorbing funds from investors and devote them to buy a variety of securities in order to reduce investment risks, exploit the economies of scale and finally make a reasonable return for investors. regarding effective role of ...

Finding the input distribution that maximizes mutual information leads, not only to the capacity of the channel, but to engineering insights that tell .the designer what good codes should be like. This is due to the folk theorem: The empirical distribution of a n y good code (i.e., approaching capacity wi th vanishing probability of error) maximizes mutual information. This paper formalizes and...

for analyzing the issue of coincidence of immanence with transcendence in whitehead’s process philosophy, the present paper attempts at the beginning to show that in this process system, especially in the framework of inclusive and comprehensive categories, entities should be interweave and have organic interrelation; because all the actual entities have reaction against each other. so the prer...

A word is said to be bordered if it contains a non-empty proper prefix that also suffix. We can naturally extend this definition pairs of words. pair words $(u,v)$ xmlns:xlink="ht...

We prove two results intended to streamline proofs about cellularity that pass through mutual algebraicity. First, we show a countable structure $M$ is cellular if and only $\omega$-categorical mutually algebraic. Second, in finite relational language algebraic non-cellular, it admits an elementary extension adding infinitely many infinite MA-connected components. Towards these results, introdu...