Quadsim Version 2.1 Student Manual

Quadsim is an intermediate code simulator. It allows you to "run" programs that your compiler generates in intermediate code format. Its user interface is similar to most debuggers in that you can step through your program, instruction by instruction, set breakpoints, examine variable values, and so on. The intermediate code format used by Quadsim is that described in [Aho 86]. If your compiler generates intermediate code in this format, you will be able to take intermediate-code files generated by your compiler, load them into the simulator, and watch them "run." You are provided with functions that hide the internal representation of intermediate code. You can use these functions within your compiler to generate intermediate code files that can be read by the simulator. Quadsim was inspired and greatly influenced by [Aho 86]. The material in chapter 8 (Intermediate Code Generation) of [Aho 86] should be considered background material for users of Quadsim

IoT data encryption algorithm for security

This research project is about encryption simulation for IoT data. It is important to enhance the security system when sending and receiving the IoT data. Some of these data, especially the health information for a particular person is very sensitive. Therefore, there is a need to encrypt and protect the data from malicious attack. The technique proposed in this research is using Hash function and encryption method to protect the data. To show the working of the encryption, a simulation is performed. The simulation used is a MATLAB coding. By inserting the number of bit and size of the data with random plain text, the system is able to encrypt the data. The simulation results showing that the encrypted data is completely different from the original data or the data haven't encrypted. Upon encrypted, the data being protected and will be unknown to the malicious. At the end of this research project, the result concluded that the waveforms will show the encryption process

CREDIT RATING AGENCIES AND THEIR POTENTIAL IMPACT ON DEVELOPING COUNTRIES

Credit rating agencies (CRAs) play a key role in financial markets by helping to reduce the informative asymmetry between lenders and investors, on one side, and issuers on the other side, about the creditworthiness of companies or countries. CRAs´ role has expanded with financial globalization and has received an additional boost from Basel II which incorporates the ratings of CRAs into the rules for setting weights for credit risk. Ratings tend to be sticky, lagging markets, and overreact when they do change. This overreaction may have aggravated financial crises in the recent past, contributing to financial instability and cross-country contagion. The recent bankruptcies of Enron, WorldCom, and Parmalat have prompted legislative scrutiny of the agencies. Criticism has been especially directed towards the high degree of concentration of the industry. Promotion of competition may require policy action at national and international level to encourage the establishment of new agencies and to channel business generated by new regulatory requirements in their direction.

The Regional and Multilateral Dilemna: Institutions Do Matter

The world trade has been p olitically framed towards liberalism and "openness". It is evident that this openness has its own grades and interests that command it. Developing countries have been directed, and pushed towards a playing ground they fear and ignore. But some would argue that even developed countries have to go through such stages. The whole difference here is the gap between where the latter stood when they decided to move toward openness and where developing countries do stand today. A simple and obvious proof of that is the increasing number of regional trade agreements (RTAs in following papers for convenience) that most countries have adopted. If we agree that regional networking should serve coordinating interests, RTAs came to answer a multilateral dilemma: multilateral negotiations are asking different and diversified countries, economies and cultures, to melt into a single frame defined by the "Triade", the world powers. In this paper we will examine the regional trade in the context of world trade (part 1) and contrast regionalism and multilateralism. My conclusion that regional agreements hinder the progress of a fair and dynamic multilateral governance and reduce its institutional progress.Institutional and Behavioral Economics, F13, O1,

Sparse visual models for biologically inspired sensorimotor control

Given the importance of using resources efficiently in the competition for survival, it is reasonable to think that natural evolution has discovered efficient cortical coding strategies for representing natural visual information. Sparse representations have intrinsic advantages in terms of fault-tolerance and low-power consumption potential, and can therefore be attractive for robot sensorimotor control with powerful dispositions for decision-making. Inspired by the mammalian brain and its visual ventral pathway, we present in this paper a hierarchical sparse coding network architecture that extracts visual features for use in sensorimotor control. Testing with natural images demonstrates that this sparse coding facilitates processing and learning in subsequent layers. Previous studies have shown how the responses of complex cells could be sparsely represented by a higher-order neural layer. Here we extend sparse coding in each network layer, showing that detailed modeling of earlier stages in the visual pathway enhances the characteristics of the receptive fields developed in subsequent stages. The yield network is more dynamic with richer and more biologically plausible input and output representation

THE IMPACT OF LOGISTICS PERFORMANCE ON THE SALES LEVEL An Empirical Study in Retail Sector

The aim of this research is to assess the impact of logistics performance on retail sector. This research was conducted in Palu in Central Sulawesi Province. There are several indicators involve in this study, such as, customer service, operation metric, and logistics cost. This research is categorized as explanatory research and multiple regression method was used to analyze the hypotheses. Simultaneously, this research found that logistics performance has significant contribution to sales level. However, customer service has not had positive contribution to sales level compare to operation metric and logistics cost. In addition, logistics cost has big impact on the sales level of retail groceries. The result of this research can be used by academicians and professionals who intent to deal with logistics in retail sector. This research also identifies that logistics performance need further study in different region and sector with the aim to improve the understanding of dimension

A Time-Varying Parameter Model of A Monetary Policy Rule for Switzerland. The Case of the Lucas and Friedman Hypothesis.

This paper is an empirical research of a monetary policy rule for a small open economy model, taking Switzerland as a case-study. A time-varying parameter model of a monetary policy reaction function is proposed to integrate various trade-offs to be made about various macroeconomic variables -- inflation, the output gap and the real exchange rate gap. The Kalman filter estimations of the time-varying parameters shows how rational economic agents combine past and new information to make new expectations about the state variables. The uncertainty created by the time-varying parameter model, and estimated by the conditional forecast error and conditional variance, is decomposed into two components, the uncertainty related to the time-varying parameters and the uncertainty related to the purely monetary shock. Most of the monetary shock uncertainty comes from the time-varying parameters and not from the pure monetary shock. The Lucas and Friedman hypotheses about the impact of uncertainty on output are revisited, using a conditional variance to test them. Both hypothesis are confirmed, using the one-step ahead conditional variance of the monetary shock. An inverse relation between the magnitude of the response on output to the nominal shock and the variance of this shock is found, as Lucas had predicted. Moreover, there is a direct negative impact of uncertainty which reduces output in the long-term.time-varying parameter model; Taylor rule; Kalman Filter.

A framework for modelling mobile radio access networks for intelligent fault management

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