cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Randomized methods for computing joint eigenvalues, with applications to multiparameter eigenvalue problems and root finding
Creators: name: He, Haoze
name: Kressner, Daniel
name: Plestenjak, Bor
Publisher: name: arXiv
Year: 2024
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 65F15, 15A27, 68W20, 15A69, 65H04

description: It is well known that a family of $n\times n$ commuting matrices can be simultaneously triangularized by a unitary similarity transformation. The diagonal entries of the triangular matrices define the $n$ joint eigenvalues of the family. In this work, we consider the task of numerically computing approximations to such joint eigenvalues for a family of (nearly) commuting matrices. This task arises, for example, in solvers for multiparameter eigenvalue problems and systems of multivariate polynomials, which are our main motivations. We propose and analyze a simple approach that computes eigenvalues as one-sided or two-sided Rayleigh quotients from eigenvectors of a random linear combination of the matrices in the family. We provide some analysis and numerous numerical examples, showing that such randomized approaches can compute semisimple joint eigenvalues accurately and lead to improved performance of existing solvers.
description: 32 pages
L'interaction dans le développement de la compétence grammaticale en français langue seconde
Creators: name: Higgins, Danielle
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2004
Subjects: subject: Education, Language and Literature.

description: L'interaction en langue seconde a fait l'objet de nombreuses études Qui ont examiné son rôle par rapport aux conditions et aux processus considérés comme importants dans le développement d'une langue seconde, mais peu d'entre elles ont porté spécifiquement sur te rôle de l'interaction comme moyen de favoriser l'enseignement et l'apprentissage de la grammaire en langue seconde. De plus, très peu d'études ont recueilli les commentaires des participants pour mieux comprendre leur démarche d'apprentissage. Pourtant, le développement de la compétence grammaticale constitue une source de difficultés pour beaucoup d'étudiants anglophones qui apprennent le français. C'est pourquoi notre recherche avait comme objectif d'étudier l'interaction en tenant compte des commentaires des participants et posait, pour étudier cette problèmatique, les questions suivantes: Quelle est la nature de l'interaction langagière entre apprenants de français langue seconde de niveau intermédiaire engagés dans une tâche grammaticale accomplie en dyade? Quelles sont les perceptions des apprenants par rapport à la tâche grammaticale et à l'interaction? Y a-t-il d'autres facteurs, qui selon eux, devraient être mis en lumière? (Abstract shortened by UMI.)
Comparative analysis of real estate property appraisal and property transactions in FYROM, Republic of Serbia, Republic of Montenegro and Bosnia and Hercegovina
Creators: name: Gjorgjiev, Vanco
name: Gospavić, Zagorka
name: Mulahusić, Admir
name: Kovačević, Dragan
name: Obradović, Zeljko
Publisher: name: RELAND: International Journal of Real Estate & Land Planning
Year: 2018

description: Historically, political past of all four countries (FYROM, Republic of Serbia, Republic of Montenegro and Bosnia and Hercegovina) as part of the Yugoslav Federation has created common legal and technical norms in the definition and administration of real estate. Real estate transactions in the federal system, and characteristics which are related to a predominantly planned economy and limited market effects, have been subordinated according to the registration rules through which each spatial entity acquires status of real estate property and rights upon the property. In that political status of the federation, valuation and cofactors implications on real estate value have not been considered as a crucial up to the moment of privatization of state capital. The period, known as transition, when the republics gained the independent status with separate political systems and specificities, each country independently has developed its system for property valuation further with its own characteristics, those system will be compared in this research. In order to establish a unique and recognizable approach in comparative analyses and to reduce the risks of targeted dependence on the factors on which the analyzes are based, analysis will be conducted on the bases of influential stakeholders in real estate market activities, the development periods with characteristics in accordance with the property market ambient in each country and the legal framework through which the legal-technical-technological-management guidelines in the administration of the real estate are regulated. In the newly established circumstances, the approaches to determining the value of real estate in each of the states whose statuses are compared have their own characteristics based on nationally established standards and their application, professional organizations through which they exercise and control the activities as well as the legal aspects for qualifying and licensing companies and individuals as legitimate enforcement agents in supporting the processes for property appraisal. Data acquisition will be conducted through a survey in each country, the relevant statuses will be provided and systems similarities and contrasts in any aspect at each of the indicated comparison sites will be established.
description: RELAND: International Journal of Real Estate & Land Planning, Vol 1 (2018)
Identifying risk factors for newborn outcomes using artificial neural networks
Creators: name: Ibrahim-Swailum, Doaa
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2006
Subjects: subject: Engineering, Electronics and Electrical.

description: The goal of this thesis is to identify the risk factors for caesarean delivery, neonatal mortality and low Apgar score using Artificial Neural Networks (ANNs). The medical domain of interest used is the perinatal database provided by the Perinatal Partnership Program of Eastern and Southeastern Ontario (PPPESO). The ability of the ANNs to generate strong predictive model with the most influential variables was tested. Different ANN techniques for weight extraction and determining the importance of each input variables were applied. The thesis used feedforward ANNs trained by the backpropagation algorithm, as this is a widely used ANN in medical applications. Finally, minimal sets of variables (risk factors) that are important in predicting each outcome without degrading the ANN performance were identified.
P107 negatively regulates the neural precursor pool by repressing Hes1 transcription
Creators: name: Wylie, Crystal A
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2006
Subjects: subject: Biology, Molecular.

description: Stem cells are defined by their multipotentiality and their long-term ability to self-renew. P107, a member of the pocket protein family of cell cycle regulators has previously been shown in our laboratory to negatively regulate neural precursor cell number and self-renewal (Vanderluit et al., 2004). In this study, we investigated the mechanism by which p107 regulates the neural precursor pool by examining interactions between p107 and the Notch pathway, which has also been shown to regulate the neural stem cell population (Nakamura et al., 2000; Ohtsuka et al., 2001; Hitoshi et al., 2002b). We found an increase in both the transcript and protein levels of Hes1 in p107-/- brains using in situ hybridization and western blot analysis. Examination of the Hes1 promoter revealed three putative E2F binding sites, which were subsequently found to bind E2F3 and E2F4 using chromatin immunoprecipitation. P107 was found to significantly repress Hes1 promoter activity in the luciferase reporter assay, and finally, using the primary neurosphere assay we showed that removal of Hes1 from p107-/- neurospheres restores the number of neurosphere forming cells to wildtype levels. Our results suggest that p107 represses Hes1 transcription through E2F, and demonstrate that an upregulation of Hes1 is responsible for the increased neural precursor pool in p107-/- mice.
Mass-transfer Outburts reborn: Modeling the light curve of the dwarf nova EX Draconis
Creators: name: Schlindwein, Wagner
name: Baptista, Raymundo
Publisher: name: arXiv
Year: 2024
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: EX Draconis is an eclipsing dwarf nova that shows outbursts with moderate amplitude ($\simeq 2$ mag) and a recurrence timescale of $\simeq 20$-30 d. Dwarf novae outbursts are explained in terms of either a thermal-viscous instability in the disc or an instability in the mass transfer rate of the donor star (MTIM). We developed simulations of the response of accretion discs to events of enhanced mass transfer, in the context of the MTIM, and applied them to model the light curve and variations in the radius of the EX Dra disc throughout the outburst. We obtain the first modeling of a dwarf nova outburst by using $χ^2$ to select, from a grid of simulations, the best-fit parameters to the observed EX Dra outbursts. The observed time evolution of the system brightness and the changes in the radius of the outer disc along the outburst cycle are satisfactorily reproduced by a model of the response of an accretion disc with a viscosity parameter $α= 4.0$ and a quiescent mass transfer rate $\dot{M}_2 (\textrm{quiescence}) = 4.0 \times 10^{16}$ g/s to an event of width $Δt = 6.0 \times 10^5$ s ($\sim 7$ d) where the mass-transfer rate increases to $\dot{M}_2 (\textrm{outburst}) = 1.5 \times 10^{18}$ g/s.
description: 18 pages, 12 figures, prepared with AASLatex; to appear in The Astrophysical Journal
House prices and rents variations due to Transit Oriented Development policies
Creators: name: Pagliara, Francesca
Publisher: name: RELAND: International Journal of Real Estate & Land Planning
Year: 2018
Subjects: Transit Oriented Development; neighborhood renewal; house prices change; rents change

description: The concept of Transit Oriented Development (TOD) deals with the development of a mixed-use, compact, walkable neighborhood with the objective of encouraging residents to live near and use public transit. A TOD neighborhood is typically characterized by a transit station, public spaces and by a walkable street network connecting residential and commercial buildings to that station within a 800m radius. TOD is based on the contrast to the auto-dependent behaviour, which has characterized the development pattern in the United States since the Second World War, due to the growth of car use, highway expansion, and suburbanization. Studies on the impacts of transit rail on residential property values have provided interesting results in many urban contexts. However, for the case study of Italy, the literature is very poor with the exception of some experiences reported for the cities of Milan, Turin and Genoa, where the impacts of these initiatives have not really been quantified. The aim of this paper is to fill this gap, indeed through the case study of Naples, a city in the south of Italy, the impacts of metro stations on house prices and on rents have been analysed. The Campania Regional Metro System (RMS) project is considered one of the most ambitious examples of rail-based public transport policies currently implemented in Italy. The project started in Naples, the main city of Campania region, in 1997, and was extended to the regional level in 2000. The focus here will be on the seven lines of the metro network of Naples and on the analysis of the impacts of these stations on house prices. In this context, several international architects were involved in the RMS to ensure high esthetic quality standards for both the new and renewed stations. In addition to purely architectural elements, the stations are characterized by contemporary art pieces, improving the esthetic quality of the terminal and in the surrounding area, thus increasing its the quality of life. Four recently inaugurated stations are described in detail. For them, being part of the Art Metro project, impacts on house prices and rents will be reported.
description: RELAND: International Journal of Real Estate & Land Planning, Vol 1 (2018)
The air-sea wind boundary layer
Creators: name: Ting, Chia-Huan
Publisher: name: Swinburne
Year: 2024

description: The drag coefficient is one of the most important quantities used in modeling air-sea interaction. Most studies suggest this coefficient is a function of mean wind speed. There is, however, a considerable degree of scatter associated with such dependences. This means that the accuracy of predictions using the sea-surface drag parameter is limited. The aim of this study was to investigate the dependence of drag coefficients on physical factors related to wind speed, sea state, wave directional spreading, wind gustiness and ocean stratification.
Viewing valuations from the sky: UAVs in the appraisal industry
Creators: name: Xifilidou, Agapi
name: Kaimaris, Dimitris
Publisher: name: RELAND: International Journal of Real Estate & Land Planning
Year: 2018
Subjects: UAVs; real estate valuations

description: The first reports of autonomous unmanned flight tools come from antiquity, while bibliography shows image capturing platforms from the late 19th century. Over the years, these platforms have altered leading to the present fully automated Unmanned Aerial Vehicle (UAV), which capture images of the Earth's surface and its objects. In this paper we will present the historical evolution of the use of image capturing systems’ platforms, their disadvantages, their advantages, and their applications and use in real estate valuations and appraisal studies. During the last years, UAVs have entered the appraisal industry massively. Unmanned aerial vehicles are typically being used to facilitate appraisers on the collection and documentation of the necessary data that need to be reported during the valuation process. The aim of this paper is to identify and report UAVs’ uses during the valuation process by documenting all their applications and useful products. In short, access to hard-to-reach places, such as rooflines and plots of sharp terrain, has been the first and yet one of the most important uses of drones during valuations. Especially in cases of litigation, the detailed description of a property is more than necessary. In addition to other uses, UAVs generally allow appraisers to conduct their jobs more frequently, efficiently, and effectively. It is crucial, however, to adhere and apply all safety targeting regulatory changes if the industry wants to continue using such systems during valuations.
description: RELAND: International Journal of Real Estate & Land Planning, Vol 1 (2018)
Adaptive capacity, adaptation strategies and migration in the Canadian Prairies during the Dirty Thirties: Lessons for drought-migration processes under future climate change
Creators: name: Gilbert, Genevieve
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2009
Subjects: subject: History, Canadian.
subject: Geography.
subject: Environmental Sciences.

description: This research examines the emergence of migration as a household adaptation strategy to drought in Alberta in the 1930s. Existing research on human migration in response to natural hazards tends to be limited in terms of empirical examples, particularly migration in response to climate stresses. The purpose of this study is to examine the detailed factors that influenced adaptive capacity and adaptation strategies of residents in south-eastern Alberta during the 1930s and to examine migration as one form of adaptation to drought. Data collection involved 37 in-depth semi-structured interviews in south-eastern Alberta and north-western Alberta, a literature review and archival data analysis. This study can help inform our understanding of future household vulnerability to drought in rural Alberta and migration as a potential adaptation strategy to climate change.
The Environmental Value of Sustainable Transport Infrastructure
Creators: name: Kalyviotis, Nikolaos
name: Rogers, Christopher D. F.
name: Tight, Miles R.
name: Hewings, Geoffrey J. D.
name: Doloi, Hemanta
Publisher: name: RELAND: International Journal of Real Estate & Land Planning
Year: 2018
Subjects: Environment; Transport management; Infrastructure planning

description: The climate change threat to humanity challenges the creation of sustainable transport infrastructure based on the triptych of balancing and maximising environmental, economic and social value. A piece of infrastructure may be created in a sustainable manner, but may be then subsequently used unsustainably, that would not be sustainable. In other words, sustainable transport infrastructure is linked with the use of the most sustainable transport choices. Environmental value may be defined by the natural and anthropogenic factors and elements which interact with and influence the natural ecosystem, quality of life, and human health and well-being. Emissions are a widely accepted way by the Food and Agriculture Organization of the United Nations to “calculate” environmental damaging actions. Emissions address the production of pollutants and the placement of waste into the environment. The target is to reduce the use of transport modes with high environmental impact (e.g. cars) and replace them with transport modes with low or no environmental impact (e.g. public transport, walking, cycling). The hypothesis tested is that each individual should be able to understand which transport mode is the most sustainable and investigate whether each individual will accept the use of alternative options that consume less energy and generate fewer emissions. The methodology used was statistical inference. The hypothesis regarding the individuals’ understanding was verified with some deviations and a table with the environmental infrastructure interdependencies was developed based on EXIOBASE 3 database using the emissions generated from each transport sector for comparison purposes.
description: RELAND: International Journal of Real Estate & Land Planning, Vol 1 (2018)
La promotion de la langue française dans les forces armées canadiennes: L'exemple des Généraux Jean Victor Allard et Jacques Alfred Dextraze
Creators: name: Sawyer, Alexandre
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2009
Subjects: subject: History, Canadian.

description: Cette thèse examine l'évolution de la situation des francophones et de leur langue dans les Forces armées canadiennes pour la période 1945-1977. Ce travail évalue la contribution dans ce domaine des deux premiers chefs d'état-major canadiens-français, Jean Victor Allard et Jacques Alfred Dextraze. Aucune autre étude académique n'a traité spécifiquement de cette question. Au sortir de la Seconde Guerre mondiale, la présence des militaires canadiens-français est modeste. Ils ne représentent que 6,9% de tous les officiers et 15,3% des hommes de troupe, alors que leur poids démographique dans la population canadienne est d'environ 29%. Suite à quelques changements dans les années 1950, la situation des francophones et de leur langue s'améliore quelque peu. Mais, il faudra attendre l'arrivée d'un premier, puis d'un deuxième francophone au poste militaire suprême pour que le sort des Canadiens français change. Le premier, Jean V. Allard, a fait des militaires francophones et de leur langue une question de la plus haute importance, déterminant les objectifs prioritaires de la réforme linguistique et développant les unités de langue française. Le deuxième, Jacques A. Dextraze, a consolidé certains acquis obtenus par les militaires canadiens-français, en mettant plus ou moins d'emphase selon ce qu'il considérait comme important ou secondaire. L'analyse détaillée de ces thèmes nous procure une compréhension plus approfondie de la présence francophone et du français dans les Forces canadiennes. Le but de ce travail est d'ajouter une étude innovatrice à la littérature déjà parue sur les militaires canadiens-français et d'améliorer nos connaissances sociomilitaires de cette période.
Terrain analysis for parcels evaluation based on UAV data-sets
Creators: name: Doumit, Jean A.
Publisher: name: RELAND: International Journal of Real Estate & Land Planning
Year: 2018
Subjects: UAV; Terrain analysis; parcel values; real estate

description: The use of Unmanned Aerial Vehicles (UAVs) in geosciences is now widespread and operational for several applications – 3D modeling, quarry monitoring, archeology, forestry and terrain analysis. Land surveyors for the economy of time and money are using UAVs in their big projects. Real estate market in Lebanon is very specific and unstable, parcels prices vary from place to another without any criteria. The objective of this study is to evaluate parcels based on terrain weighted analysis of elevations, slope, and curvatures generated from UAV datasets. As a result of the geospatial analysis, a land evaluation derivative map of the study area generated to be a base for parcel classification. Parcels classified according to the map of standards resulting from our research gives the opportunities to real estate companies and cadastral experts to evaluate and put the suitable land pricing for a powerful and stable market. The final output resulted from terrain analysis is a cadastral map showing the real estate rate of parcels.
description: RELAND: International Journal of Real Estate & Land Planning, Vol 1 (2018)
Valuation Accuracy and Certainty in Developing Countries- A Socio-Political Analysis
Creators: name: Komu, Felician John
Publisher: name: RELAND: International Journal of Real Estate & Land Planning
Year: 2018
Subjects: Valuation Accuracy; Reliability;Valuation Guidelines

description: Valuation services have become increasingly less credible in Tanzania despite an impressive digital data penetration from an inisignificant 115,000 people at the end of 2000 to over 11.5m by June 2017. Practicing valuers have been accused of valuing that which never existed, overvaluing and undervaluing to suit different situations. The key research problem for the study revolved around the lack of measure on reliability and precision of value estimates as was once observed by Dell (2013). While findings from the interviews revealed little appreciation of the intertwin relationships that exist between real estate and finance markets amongst practising valuers, it was evident, external influences mainly through government guidelines and certification processes had strong impact on the valuation estimates. The local practice is apprehensive of strict adherence to government circulars on valuation assessment and reporting standards,which to a large extent might account for the limited valuers’ inquisitiveness on the dynamics of value affecting factors. It was also established that practicing valuers have limited understanding of the general investment market which as Scarrett (2008) observes is crucial in trying to interpret the working of property investment markets. The paper observes a dichotomy between values derived from local market operations and those estimated by valuers. The paper attributes this to reliance on government published guidelines and limited continued professional training amongst valuers. The paper concludes that valuation accuracy and certainty in developing countries are influencecd by the limited roles that professional valuation boards exercise in keeping their members in pace with development in the profession.
description: RELAND: International Journal of Real Estate & Land Planning, Vol 1 (2018)
Economic valuation of protected areas: The case of lake Pamvotis
Creators: name: Lazoglou, Alexia
name: Vagiona, Dimitra
Publisher: name: RELAND: International Journal of Real Estate & Land Planning
Year: 2018
Subjects: Contingent valuation method; economic valuation; willingness to pay; lake Pamvotis

description: Lake Pamvotis (Ioannina-Greece) belongs to Natura 2000 network and is universally recognized, for its unique and valuable biodiversity that is protected by international and national policy frameworks. Despite its environmental importance and ecological value, the lake is under various anthropogenic pressures. The primary objective of this study is to estimate the residents’ willingness to pay (WTP) to contribute to the enhancement of the quality of the natural environment. A questionnaire survey is designed and distributed in order to collect sociodemographic data and residents’ environmental opinion about the area as well as their willingness to pay for its protection. Most respondents agree to pay an extra amount of money in their water bill to contribute to the proper protection of the lake. The unwillingness to pay is related to protest votes. Considering the environmental degradation of the lake, several actions are suggested.
description: RELAND: International Journal of Real Estate & Land Planning, Vol 1 (2018)
Recovering chemical bimodalities in observed edge-on stellar disks: insights from AURIGA simulations
Creators: name: Pinna, Francesca
name: Grand, Robert J. J.
name: Martig, Marie
name: Fragkoudi, Francesca
Publisher: name: arXiv
Year: 2024
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We assessed the ability to recover chemical bimodalities in integral-field spectroscopy (IFS) observations of edge-on galaxies, using 24 Milky Way-mass galaxies from the AURIGA zoom-in cosmological simulations. We first analyzed the distribution of single stellar particles in the [Mg/Fe] - [Fe/H] plane. Then we produced mock IFS [Mg/Fe] and [Fe/H] maps of galaxies seen edge on, and considered integrated stellar-population properties (projected and spatially binned). We investigated how the distribution of stars in the [Mg/Fe] - [Fe/H] plane is affected by edge-on projection and spatial binning. Bimodality is preserved while distributions change their shapes. Naturally, broad distributions of individual star particles are narrowed into smaller [Mg/Fe] and [Fe/H] ranges for spatial bins. We observe continuous distributions, bimodal in most cases. The overlap in [Fe/H] is small, and different [Mg/Fe] components show up as peaks instead of sequences (even when the latter are present for individual particles). The larger the spatial bins, the narrower the [Mg/Fe] - [Fe/H] distribution. This narrowing helps amplify the density of different [Mg/Fe] peaks, often leading to a clearer bimodality in mock IFS observations than for original star particles. We have also assessed the correspondence of chemical bimodalities with the distinction between geometric thick and thin disks. Their individual particles have different distributions but mostly overlap in [Mg/Fe] and [Fe/H]. However, integrated properties of geometric thick and thin disks in mock maps do mostly segregate into different regions of the [Mg/Fe] - [Fe/H] plane. In bimodal distributions, they correspond to the two distinct peaks. Our results show that this approach can be used for bimodality studies in future IFS observations of edge-on external galaxies.
description: 12 pages, 6 figures, accepted for publication in Astronomy & Astrophysics
Human Brain and Real Estate: Analyzing the Relationship between Qualitative Space and Price
Creators: name: Ibrahimi, Nada
name: Ruci, Gjergj
Publisher: name: RELAND: International Journal of Real Estate & Land Planning
Year: 2018
Subjects: real estate; mental wellbeing; neuro-architecture; brain; public space

description: There is a personal approach to each individual in terms of experiences that categorize his experiences in urban space. That is, the built environment, among the cognitive processes, affects the human brain. Regardless of this report, the purpose of this research will be to further analyze this relationship by studying the interplay of qualitative space - mental health in Real Estate terms. Focusing on theoretical, analytical, experimental aspects based on the principles of neuro-architecture, methodologically the study will be divided into three phases. The first will be a theoretical background based on the main characteristics that define the qualitative space. In the second phase, based on the above definitions, will be aimed the urbanization of urban areas of Tirana. In the third and final one, different solutions will be tested in the sales terms, answering the main question that arises from the study: Does the impact of urban space affect real estate? So does the category of emotions we experience in the neighborhood affect the price of a real estate? Testing will be conducted between type surveys accompanied by occasional interviews. In conclusion, inspired by empirical approaches that affirm the optimal relationship created between qualitative spaces and the human brain in emotional terms, the study will concretize this connection between all data collected in the area.
description: RELAND: International Journal of Real Estate & Land Planning, Vol 1 (2018)
Electromagnetic signatures of black hole clusters in the center of super-Eddington galaxies
Creators: name: Abaroa, Leandro
name: Romero, Gustavo E.
Publisher: name: arXiv
Year: 2024
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Supermassive black holes (SMBHs) at the centers of active galaxies are fed by accretion disks that radiate from the infrared or optical to the X-ray bands. Several types of objects can orbit SMBHs, including massive stars, neutron stars, clouds from the broad- and narrow-line regions, and X-ray binaries. Isolated black holes with a stellar origin (BHs of $\sim10\,M_{\odot}$) should also be present in large numbers within the central parsec of the galaxies. These BHs are expected to form a cluster around the SMBH as a result of the enhanced star formation rate in the inner galactic region and the BH migration caused by gravitational dynamical friction. However, except for occasional microlensing effects on background stars or gravitational waves from binary BH mergers, the presence of a BH population is hard to verify. In this paper, we explore the possibility of detecting electromagnetic signatures of a central cluster of BHs when the accretion rate onto the central SMBH is greater than the Eddington rate. In these supercritical systems, the accretion disk launches powerful winds that interact with the objects orbiting the SMBH. Isolated BHs can capture matter from this dense wind, leading to the formation of small accretion disks around them. If jets are produced in these "single" microquasars, they could be sites of particle acceleration to relativistic energies. These particles in turn are expected to cool by various radiative processes. Therefore, the wind of the SMBH might illuminate the BHs through the production of both thermal and nonthermal radiation. We conclude that, under these circumstances, a cluster of isolated BHs could be detected at X-rays (with Chandra and XMM-Newton) and radio wavelengths (e.g., with the Very Large Array and the Square Kilometer Array) in the center of nearby super-Eddington galaxies.
description: 11 pages, accepted for publication in A&A
2923284.pdf
Creators: name: Ginner, Laurin
name: Kumar, Abhishek
name: Fechtig, Daniel
name: Wurster, Lara
name: Salas, Matthias
name: Pircher, Michael
name: Leitgeb, Rainer
Publisher: name: Optica Publishing Group
Year: 2025
Subjects: Uncategorized

description: 2nd subject
LLM Honeypot: Leveraging Large Language Models as Advanced Interactive Honeypot Systems
Creators: name: Otal, Hakan T.
name: Canbaz, M. Abdullah
Publisher: name: arXiv
Year: 2024
Subjects: subject: Cryptography and Security (cs.CR)
subject: Artificial Intelligence (cs.AI)
subject: Computation and Language (cs.CL)
subject: Machine Learning (cs.LG)
subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences
subject: I.2.7; D.4.6; K.6.5
subject: 68T50, 68M10

description: The rapid evolution of cyber threats necessitates innovative solutions for detecting and analyzing malicious activity. Honeypots, which are decoy systems designed to lure and interact with attackers, have emerged as a critical component in cybersecurity. In this paper, we present a novel approach to creating realistic and interactive honeypot systems using Large Language Models (LLMs). By fine-tuning a pre-trained open-source language model on a diverse dataset of attacker-generated commands and responses, we developed a honeypot capable of sophisticated engagement with attackers. Our methodology involved several key steps: data collection and processing, prompt engineering, model selection, and supervised fine-tuning to optimize the model's performance. Evaluation through similarity metrics and live deployment demonstrated that our approach effectively generates accurate and informative responses. The results highlight the potential of LLMs to revolutionize honeypot technology, providing cybersecurity professionals with a powerful tool to detect and analyze malicious activity, thereby enhancing overall security infrastructure.
description: 6 pages, 5 figures
2923284.pdf
Creators: name: Ginner, Laurin
name: Kumar, Abhishek
name: Fechtig, Daniel
name: Wurster, Lara
name: Salas, Matthias
name: Pircher, Michael
name: Leitgeb, Rainer
Publisher: name: Optica Publishing Group
Year: 2017
Subjects: Uncategorized

description: 2nd subject
Multi-Agent Sparse Interaction Modeling is An Anomaly Detection Problem
Creators: Chao Li
Shaokang Dong
Shangdong Yang
Hongye Cao
Wenbin Li
Yang Gao
Publisher: name: IEEE Signal Processing Society
Year: 2024

description: Most real-world multi-agent tasks exhibit the characteristic of sparse interaction, wherein agents interact with each other in a limited number of crucial states while largely acting independently. Effectively modeling the sparse interaction and leveraging the learned interaction structure to instruct agents' learning processes can enhance the efficiency of multi-agent reinforcement learning algorithms. However, it remains unclear how to identify these specific interactive states solely through trials and errors within current multi-agent tasks. To address this challenge, this paper introduces a novel algorithm called Sparse Interaction as Anomaly (SIA), which innovatively casts the sparse interaction modeling into an anomaly detection problem. The underlying intuition is that interactive states appear rarely in agents' trajectories and exhibit distinct dynamics compared to other commonplace states. Building upon this insight, SIA first employs variational inference to model the latent dynamics of agents' trajectories. It then designates states with anomalous dynamics as the elusive interactive states and subsequently instructs agents to explore these states more extensively. This facilitates the emergence of interactive behaviors and promotes the learning of multi-agent policies. Experimental evaluation of SIA across various multi-agent tasks demonstrates its superior performance against multiple baselines, highlighting its effectiveness.
Benchmarking Secure Sampling Protocols for Differential Privacy
Creators: name: Fu, Yucheng
name: Wang, Tianhao
Publisher: name: arXiv
Year: 2024
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: Differential privacy (DP) is widely employed to provide privacy protection for individuals by limiting information leakage from the aggregated data. Two well-known models of DP are the central model and the local model. The former requires a trustworthy server for data aggregation, while the latter requires individuals to add noise, significantly decreasing the utility of aggregated results. Recently, many studies have proposed to achieve DP with Secure Multi-party Computation (MPC) in distributed settings, namely, the distributed model, which has utility comparable to central model while, under specific security assumptions, preventing parties from obtaining others' information. One challenge of realizing DP in distributed model is efficiently sampling noise with MPC. Although many secure sampling methods have been proposed, they have different security assumptions and isolated theoretical analyses. There is a lack of experimental evaluations to measure and compare their performances. We fill this gap by benchmarking existing sampling protocols in MPC and performing comprehensive measurements of their efficiency. First, we present a taxonomy of the underlying techniques of these sampling protocols. Second, we extend widely used distributed noise generation protocols to be resilient against Byzantine attackers. Third, we implement discrete sampling protocols and align their security settings for a fair comparison. We then conduct an extensive evaluation to study their efficiency and utility.
description: This is the full version (18 pages) of the paper Benchmarking Secure Sampling Protocols for Differential Privacy published at CCS'2024
Design and development of a web-based GIS application for rating residential properties
Creators: name: Rozakis, Vasilis
name: Kopsachilis, Vasilis
name: Vaitis, Michail
Publisher: name: RELAND: International Journal of Real Estate & Land Planning
Year: 2018
Subjects: webGIS; spatial database; multicriteria analysis; real estate

description: In the real estate business, it is a common understanding that the value and potential of a property are fundamentally determined by its location and surrounding environment, like the proximity to services and facilities. Depending on buyer/tenant preferences or on the stage of a person life cycle, surrounding preferences may vary, such as families with young children are interested in properties located near parks, playgrounds or schools, whereas young people and students want to be near entertainment venues. In this paper, we present "Rate your Place", a web-based GIS that allows buyers/tenants to define their preferences regarding the types of facilities that they want to have near or far from their ideal property and returns a ranked list of the most suitable properties. Ranking mechanism is based on a multi-criteria geospatial analysis methodology that employs: (a) routing methods, for calculating road network distances, (b) a Ratio Estimation Procedure, for assigning weights to types of facilities, (c) Score Range Procedure, for distance normalization and (d) a Simple Additive Weighting (SAW) index for calculating the final score of each property. The methodology is supported by an integrated web-based GIS developed exclusively with the use of open source software. As a case study, an application has been implemented for the city of Chios, Greece.
description: RELAND: International Journal of Real Estate & Land Planning, Vol 1 (2018)
A skilled manager, strategic to real estate financing
Creators: name: Ogbenjuwa, Lucy
name: Egbu, Charles
name: Robinson, Herbert
Publisher: name: RELAND: International Journal of Real Estate & Land Planning
Year: 2018
Subjects: funding skills matrix; real estate finance; conceptual skills; financial management skills; human skills; political skills

description: The manager’s skills is a critical factor that has immense influence on the organisation’s ability to source funding for real estate projects. The contemporary manager in the real estate sector needs managerial talents to be able to access financing for real estate projects, given the complexities of the prevailing global financial markets. The aim of this paper is to identify the nature and type of skill-sets required by managers involved in sourcing funding for real estate projects. The methodology adopted is a desk review of relevant literature, systematic analysis of the manager and managerial skills sets. The study found that some of the skills required are innate but others need to be developed through training, education and experience. The findings shows that the manager and his team should obtain a comprehensive mix of human, technical, conceptual, political and financial management skills to continually have access to funding for real estate projects. The study contributes to the field by presenting a novel blend of manager’s skills, fundamental to accessing funding for real estate projects. This study developed a skills funding matrix for accessing funding, which could act as a guide to decision makers on skills training needs and assessment for managers that are responsible for sourcing project funding for real estate firms. Recommendations for the industry and academia are proffered.
description: RELAND: International Journal of Real Estate & Land Planning, Vol 1 (2018)
Lope de Aguirre el eterno viajero : su trayectoria discursiva en el imaginario cultural hispánico.
Creators: name: Beauchesne, Kim.
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2000
Subjects: subject: Literature, Latin American.

description: Cette these a pour objet d'etudier la trajectoire discursive de Lope de Aguirre, le fameux rebelle basque de la periode de la Conquete de l'Amerique, dans l'imaginaire culturel hispanique du XVIe siecle a nos jours. Durement vilipende par les chroniqueurs du XVIe siecle, notre personnage sera tour a tour repris par des historiens des XVIIe et XVII1e siecles, par Simon Bolivar et un medecin de l'elite creole du XIXe siecle, et par des historiens, romanciers et cineastes du XXe siecle, qui l'utilisent dans un dialogue implicite avec le nationalisme basque, le nazisme, le franquisme, la guerre des guerrillas latino-americaine et ainsi de suite. Nous essayons donc de demontrer qu'a chaque occasion les diverses appropriations d'Aguirre repondent aux conditions sociales, politiques et historiques propres au contexte de production donne. Mais une question s'impose: pourquoi la figure d'Aguirre, un rebelle parmi d'autres, genere-t-elle un nombre aussi grand de discours et textes a son sujet? Etait-il vraiment un rebelle comme les autres? La methodologie que nous utilisons pour traiter ce theme est fort eclectique et puise, entre autres, dans la sociocritique, l'etude du personnage ainsi que du langage, les notions d'intertextualite/interdiscursivite et d'ideologie. Nous esperons demontrer qu'ici l'utilisation d'une approche multi-conceptuelle est des plus productives dans le cadre d'une critique qui se veut a la fois diachronique et textuelle.
(Un)certainty of (Un)fairness: Preference-Based Selection of Certainly Fair Decision-Makers
Creators: name: Duong, Manh Khoi
name: Conrad, Stefan
Publisher: name: arXiv
Year: 2024
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Fairness metrics are used to assess discrimination and bias in decision-making processes across various domains, including machine learning models and human decision-makers in real-world applications. This involves calculating the disparities between probabilistic outcomes among social groups, such as acceptance rates between male and female applicants. However, traditional fairness metrics do not account for the uncertainty in these processes and lack of comparability when two decision-makers exhibit the same disparity. Using Bayesian statistics, we quantify the uncertainty of the disparity to enhance discrimination assessments. We represent each decision-maker, whether a machine learning model or a human, by its disparity and the corresponding uncertainty in that disparity. We define preferences over decision-makers and utilize brute-force to choose the optimal decision-maker according to a utility function that ranks decision-makers based on these preferences. The decision-maker with the highest utility score can be interpreted as the one for whom we are most certain that it is fair.
description: Accepted in 27TH EUROPEAN CONFERENCE ON ARTIFICIAL INTELLIGENCE (ECAI 2024)
title: Canadian Perspectives on Academic Integrity, Vol. 3 No. 1 (2020): Volume 3, Issue 1
title: Volume 3, Issue 1
titleType: AlternativeTitle
Creators: name: Canadian Perspectives On Academic Integrity
Publisher: name: Canadian Perspectives on Academic Integrity
Year: 2020

description: Further Contemplations: Inaugural Canadian Symposium on Academic Integrity...1-5 Text-matching software in post-secondary contexts: A systematic review protocol...6-24 Building a Regional Academic Integrity Network: Profiling the Growth and Action of the Academic Integrity Council of Ontario ...25-38 Creating a Collaborative Network to Promote Cultures of Academic Integrity in Manitoba’s Post-Secondary Institutions...39-48 Creating a User-Based Website to Support Academic Integrity at the University of Waterloo...49-54 Preventing online shopping for completed assessments: Protecting students by blocking access to contract cheating websites on institutional networks...55-69 Applying a Holistic Approach to Contract Cheating: A Canadian Response...70-82 Methodological Decisions in Undertaking Academic Integrity Policy Analysis: Considerations for Future Research...83-91
Applying the Fast Track Law for Strategic Investments: how fast and for whom?
Creators: name: Gemenetzi, Georgia
name: Papagora, Dafni
name: Angelidou, Tatiana
Publisher: name: RELAND: International Journal of Real Estate & Land Planning
Year: 2018
Subjects: strategic investments; tourism; real estate development; Fast Track; spatial planning

description: In Greece, the recent fiscal crisis, which officially began in 2009, has set off the issue of development prospects for the country. In order for Greece to regain its reliability there was the need to provide the international and national investment community with a stable and transparent investment legislative framework. This would help investors to overcome bureaucratic obstacles and significant land use restrictions that have inhibited major investments in Greece. Therefore, a new Law, well known as Fast Track Law (L. 3894/2010) has been enacted in order to make the implementation and licensing procedure of strategic -private interest- investments easier, smoother and more attractive. However, even though the whole Fast Track Process has been designated since 2010, only a few investment projects have evolved. The paper has a two-fold objective: first, to present the key features of the legislative framework, the required conditions, the tools and the procedure concerning the exploitation of -large scale- private or mixed type (both private and public) estates, and secondly, to examine the type of investment projects which have been put under the umbrella of the Fast Track Law, as well as their degree of feasibility. Emphasis is put on strategic investments concerning tourism and real estate, which are among the most attractive sectors for investment in Greece. In conclusion, the paper evaluates and discusses to what degree the new tools and procedures introduced for strategic investments respond to market requirements, and makes suggestions for the improvement of the current legislative framework.
description: RELAND: International Journal of Real Estate & Land Planning, Vol 1 (2018)