Life Cycle Modeling of News Events Using Aging Theory
نویسندگان
چکیده
In this paper, an adaptive news event detection method is proposed. We consider a news event as a life form and propose an aging theory to model its life span. A news event becomes popular with a burst of news reports, and it fades away with time. We incorporate the proposed aging theory into the traditional single-pass clustering algorithm to model life spans of news events. Experiment results show that the proposed method has fairly good performance for both long-running and short-term events compared to other approaches.
منابع مشابه
Modeling Stock Market Volatility Using Univariate GARCH Models: Evidence from Bangladesh
This paper investigates the nature of volatility characteristics of stock returns in the Bangladesh stock markets employing daily all share price index return data of Dhaka Stock Exchange (DSE) and Chittagong Stock Exchange (CSE) from 02 January 1993 to 27 January 2013 and 01 January 2004 to 20 August 2015 respectively. Furthermore, the study explores the adequate volatility model for the stoc...
متن کاملEffect of Firm Life Cycle Theory on the relevance of Risk Measures
Risk phenomenon is one of the key characteristics of decision making in the fields of investment, issues associated with financial markets, and various economic activities. The present study was an attempt to evaluate the impact of different periods of life cycle of companies on the relevance of risk measures of companies. In this study, the collected data have been analyzed in three stages. Fi...
متن کاملLiving and dying for sex. A theory of aging based on the modulation of cell cycle signaling by reproductive hormones.
A mechanistic understanding of aging has yet to be described; this paper puts forth a new theory that has the potential to explain aging in all sexually reproductive life forms. The theory also puts forth a new definition of aging - any change in an organism over time. This definition includes not only the changes associated with the loss of function (i.e. senescence, the commonly accepted defi...
متن کاملAccording to Agency Theory and Neoclassical Theory; New Ownership and Diversity of Public Sector Companies in Corporate Life Cycle
The purpose of this study is investigating and determining rate of seizing assets and acquisition other companies by public sector companies. We estimate this rate at various stages of the life cycle of the company. Therefore, according to their size and age, the companies have been divided into small, large, young, and mature groups, and for this purpose, we have collected data from a sample o...
متن کاملمطالعه تطبیقی اخبار خارجی تلویزیون و چهارچوب ذهنی مردم تهران از جهان خارج؛ با تأکید بر بحران فلسطین
In this article we are studying the representation and visualization of TV’s foreign news about Palestine crisis and TV’s role in Tehran citizen’s conceptualization and visualization about the events of this territory. Our main goal is analyzing and assessing audience’s conceptualization about world’s events through TV’s foreign news. For reaching to this goal we used two methods consequently: ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2003