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- Milad Kharratzadeh, Thomas R. Shultz
- CogSci
- 2013

We propose a modular neural-network structure for implementing the Bayesian framework for learning and inference. Our design has three main components, two for computing the priors and likelihoods based on observations and one for applying Bayes' rule. Through comprehensive simulations we show that our proposed model succeeds in implementing Bayesian… (More)

- Milad Kharratzadeh, Mark Coates
- ICWSM
- 2012

We use data extracted from many weblogs to identify the underlying relations of a set of companies in the Standard and Poor (S&P) 500 index. We define a pairwise similarity measure for the companies based on the weblog articles and then apply a graph clustering procedure. We show that it is possible to capture some interesting relations between companies… (More)

- Milad Kharratzadeh, Benjamin Renard, Mark Coates
- Digital Signal Processing
- 2015

- Arsalan Sharif-Nassab, Milad Kharratzadeh, Massoud Babaie-Zadeh, Christian Jutten
- 2012 Proceedings of the 20th European Signal…
- 2012

Finding the sparse solution of an underdetermined system of linear equations (the so called sparse recovery problem) has been extensively studied in the last decade because of its applications in many different areas. So, there are now many sparse recovery algorithms (and program codes) available. However, most of these algorithms have been developed for… (More)

Wireless sensor networks consist of small nodes which are capable of sensing, computation, and communication. The initial goal of a sensing system is to detect the events of interest. In this project, we study decentralized detection in sensor networks. First, we will review the classical decentralized detection framework, in which a set of spatially… (More)

- Milad Kharratzadeh, Marcel Montrey, Alex Metz, Thomas R. Shultz
- CogSci
- 2015

Culture is considered an evolutionary adaptation that enhances human reproductive fitness. A common explanation is that social learning, the learning mechanism underlying cultural transmission, enhances fitness by avoiding the extra costs of individual learning. This explanation was disproved by a mathematical model of individual and social learning,… (More)

- Milad Kharratzadeh, Thomas R. Shultz
- Cognitive Systems Research
- 2016

Bayesian models of cognition hypothesize that human brains make sense of data by representing probability distributions and applying Bayes' rule to find the best explanation for available data. Understanding the neural mechanisms underlying probabilistic models remains important because Bayesian models provide a computational framework, rather than… (More)

- Milad Kharratzadeh, Mark Coates
- J. Multivariate Analysis
- 2017

- Milad Kharratzadeh, Mark Coates
- 2016 IEEE Statistical Signal Processing Workshop…
- 2016

In this paper, we consider a generalized multivariate regression problem where the responses are monotonic functions of linear transformations of predictors. We propose a semi-parametric algorithm based on the ordering of the responses which is invariant to the functional form of the transformation function. We prove that our algorithm, which maximizes the… (More)

- Milad Kharratzadeh, Marcel Montrey, Alex Metz, Thomas R Shultz
- Journal of theoretical biology
- 2017

Culture is considered an evolutionary adaptation that enhances reproductive fitness. A common explanation is that social learning, the learning mechanism underlying cultural transmission, enhances mean fitness by avoiding the costs of individual learning. This explanation was famously contradicted by Rogers (1988), who used a simple mathematical model to… (More)