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Message importance measure (MIM) is applicable to characterize the importance of information in the scenario of big data, similar to entropy in information theory. In fact, MIM with a variable parameter can make an effect on the…

信息论 · 计算机科学 2024-04-08 Rui She , Shanyun Liu , Yunquan Dong , Pingyi Fan

Message importance measure (MIM) is an important index to describe the message importance in the scenario of big data. Similar to the Shannon Entropy and Renyi Entropy, MIM is required to characterize the uncertainty of a random process and…

信息论 · 计算机科学 2016-07-07 Pingyi Fan , Yunquan Dong , Jiaxun Lu , Shanyun Liu

Information transfer which reveals the state variation of variables usually plays a vital role in big data analytics and processing. In fact, the measures for information transfer could reflect the system change by use of the variable…

信息论 · 计算机科学 2024-04-08 Rui She , Shanyun Liu , Pingyi Fan

This paper focuses on the problem of finding a particular data recommendation strategy based on the user preferences and a system expected revenue. To this end, we formulate this problem as an optimization by designing the recommendation…

信息论 · 计算机科学 2024-12-20 Shanyun Liu , Yunquan Dong , Pingyi Fan , Rui She , Shuo Wan

Information collection is a fundamental problem in big data, where the size of sampling sets plays a very important role. This work considers the information collection process by taking message importance into account. Similar to…

信息论 · 计算机科学 2018-01-15 Shanyun Liu , Rui She , Pingyi Fan

Data collection is a fundamental problem in the scenario of big data, where the size of sampling sets plays a very important role, especially in the characterization of data structure. This paper considers the information collection process…

信息论 · 计算机科学 2018-01-23 Shanyun Liu , Rui She , Pingyi Fan

Rare events attract more attention and interests in many scenarios of big data such as anomaly detection and security systems. To characterize the rare events importance from probabilistic perspective, the message importance measure (MIM)…

信息论 · 计算机科学 2019-01-07 Rui She , Shanyun Liu , Pingyi Fan

The maximum entropy principle can be used to assign utility values when only partial information is available about the decision maker's preferences. In order to obtain such utility values it is necessary to establish an analogy between…

统计金融 · 定量金融 2009-11-13 Andreia Dionisio , A. Heitor Reis

Storage and transmission in big data are discussed in this paper, where message importance is taken into account. Similar to Shannon Entropy and Renyi Entropy, we define non-parametric message important measure (NMIM) as a measure for the…

信息论 · 计算机科学 2017-10-02 Shanyun Liu , Rui She , Pingyi Fan , Khaled B. Letaief

Current practice for evaluating recommender systems typically focuses on point estimates of user-oriented effectiveness metrics or business metrics, sometimes combined with additional metrics for considerations such as diversity and…

信息检索 · 计算机科学 2023-09-13 Michael D. Ekstrand , Ben Carterette , Fernando Diaz

Recent literature in the last Maximum Entropy workshop introduced an analogy between cumulative probability distributions and normalized utility functions. Based on this analogy, a utility density function can de defined as the derivative…

人工智能 · 计算机科学 2009-11-10 Ali E. Abbas

Recommendation systems are widespread, and through customized recommendations, promise to match users with options they will like. To that end, data on engagement is collected and used. Most recommendation systems are ranking-based, where…

信息检索 · 计算机科学 2024-05-08 Omar Besbes , Yash Kanoria , Akshit Kumar

Importance weighting is a fundamental procedure in statistics and machine learning that weights the objective function or probability distribution based on the importance of the instance in some sense. The simplicity and usefulness of the…

机器学习 · 计算机科学 2024-05-15 Masanari Kimura , Hideitsu Hino

This paper proposes that the mathematical relationship between an entropy distribution and its limit offers some new insight into system performance. This relationship is used to quantify variation among the entities of a system, where…

信息论 · 计算机科学 2007-07-16 Ken Krechmer

Instead of testing for unanimous agreement, I propose learning how broad of a consensus favors one distribution over another (of earnings, productivity, asset returns, test scores, etc.). Specifically, given a sample from each of two…

计量经济学 · 经济学 2024-08-27 David M. Kaplan

In financial markets valuable information is rarely circulated homogeneously, because of time required for information to spread. However, advances in communication technology means that the 'lifetime' of important information is typically…

证券定价 · 定量金融 2011-08-05 Dorje C. Brody , Yan Tai Law

Whenever a social media user decides to share a story, she is typically pleased to receive likes, comments, shares, or, more generally, feedback from her followers. As a result, she may feel compelled to use the feedback she receives to…

社会与信息网络 · 计算机科学 2019-09-20 Abir De , Adish Singla , Utkarsh Upadhyay , Manuel Gomez-Rodriguez

A game is introduced to study the effect of privacy in strategic communication between well-informed senders and a receiver. The receiver wants to accurately estimate a random variable. The sender, however, wants to communicate a message…

计算机科学与博弈论 · 计算机科学 2015-09-21 Farhad Farokhi , Girish Nair

Rewards typically express desirabilities or preferences over a set of alternatives. Here we propose that rewards can be defined for any probability distribution based on three desiderata, namely that rewards should be real-valued, additive…

人工智能 · 计算机科学 2009-12-31 Pedro A. Ortega , Daniel A. Braun

This paper offers a commentary on the use of notions of statistical significance in choice modelling. We review the reasons for uncertainty in parameter estimates, provide a precise discussion on the computation of measures of uncertainty…

计量经济学 · 经济学 2026-05-18 Stephane Hess , Andrew Daly , Michiel Bliemer , Angelo Guevara , Ricardo Daziano , Thijs Dekker
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