Effects of Fitness on Generative Graph Models with Preferential Attachment

Preferential Attachment models offer an explanation for why power laws are so common in real-world data. In these models, we start out with an initial network and add nodes one at a time. For each new node, we make m connections to existing nodes and if we define the attachment probability of attaching to a vertex to be proportional to its...

Detection and Mitigation Mechanisms for Attacks in Programmable Data Planes

DDoS attacks are becoming more common and sophisticated. Only recently, in 2017, Google claims they have mitigated an attack which sent 2.54 Tbps of traffic to their servers. In order to prevent these attacks, more and more robust defence mechanisms need to be put in place to withstand the malicious traffic and secure the networks. Programmable...

Measuring Accessibility of Popular Websites While Using the I2P Anonymity Network

Anonymity networks, such as The Invisible Internet Project, commonly known as I2P, enable privacy aware users to stay anonymous on the Internet and provide secure methods of communication, as well as multi-layered encryption. Despite the many innocent reasons users opt for online anonymity, these particular networks are censored at times, as...

Limiting amount of information can increase chances for successful collaboration: Network pictures in the procurement of innovation context. Based on the case study in the City of Amsterdam CTO Innovation Team

Public procurement in the European Union is an important part of interaction between governments and the market. According to the European Commission1 every year over 250 000 public authorities in the EU spend around 14% of GDP (around €2 trillion per year) on the purchase of services, works and supplies. Often perceived as a purely bureaucratic...

Circular area development: Recommendations for creating a circularly functioning area

Problem statement – As a result of the increasing world population, use of raw materials and energy, scarcity of the raw materials and the pressure on the environment, a transition to the concept of a circular economy has become more urgent. Since the Dutch government has the ambition to be fully circular in 2050, the concept of a circular...

Quantifying hierarchy in public transport networks: Developing a new metric

Due to increasing pressure on the system, the functioning of public transport networks (PTN) in metropolitan areas is crucial for future mobility. Within these networks, hierarchical levels can be distinguished where different levels have different functions. These hierarchical levels can be analyzed but there is no way to quantitatively...

The Network Predictors: Monitoring Network Measurements To Predict Corporate Performance Before It Is Public Knowledge

Network measurments are mostly used to studynetwork topology, performance and security. The thesis uses network measurements in relation to large Internet corporations like Salesforce, Netflix and Snapchat. The thesis attempts to verify whether it is possible to predict company performance by monitoring network measurements. For the three...

Gravity model for air passenger demand estimation: the addition of big data

Over the last decades, flying has become increasingly accessible and the global aviation industry is growing rapidly. This causes airports and airspaces to reach their capacity limits. Reliable estimation and forecasting of air passenger demand is very important for airlines in order to allocate resources effectively in a constrained and...

Modeling water flow in a Dutch polder network

Agragrians in the Dutch Wadden sea region struggles with salinizing farmlands. Acacia Water's project Spaarwater enabled agrarians to measure salt concentrations in the ditches of their land using their mobile phone. All these measurements would ideally be used to evaluate the effects of salinization mitigation measures and to predict water...

Testing nonlocality in quantum networks using iteratively obtained Bell inequalities

Quantum networks play an important role in the fields of quantum information and quantum computation. One of the current problems for these networks concerns nonlocality. Characterizing and detecting nonlocality is relevant to the implementation of quantum networks and quantum repeaters, where Bell inequalities can be used to test if...

Maximum likelihood estimation of parameters in the exponential random graph model

In this report the method of Markov chain Monte Carlo maximum<br/>likelihood estimation was used to estimate parameters in the Ising model<br/>and the exponential random graph model. The method and the models<br/>where described mathematically and problems that occurred during the<br/>estimation process where discussed. A package that executes...

Towards collaborative approaches in urban regeneration: A case study in the Latin American context

Urban regeneration has been subject of a changing environment in which increased participation of different sectors of society play a key role. The shift in power and governance structures has put participation in the centre stage, as a key factor to achieve social and economic sustainability in this kind of projects. A response to this...

Corporate Social Responsibility: Overseeing a Smooth Transition to a Sustainable Regime of Making Business: A Game Theoretical Analysis

The following is a graduation project, it is a meticulous study that uses “Actor-centered institutionalism” as a theoretical framework as well as “game theory” and several “policy analysis techniques” to analyze and study Corporate Social Responsibility (CSR). It presupposes a hypothetical problem owner, “The United Nations Compact Initiative” ...