Miracle-dz/UniFAR-FTUs huggingface dataset:
Language Expressiveness and Quality of Service for Content-based Publish/Subscribe Systems

Language Expressiveness and Quality of Service for Content-based Publish/Subscribe Systems Kaiwen Zhang Doctor of Philosophy Graduate Department of Computer Science University of Toronto 2015 The publish/subscribe paradigm is known for its loosely coupled interactions and event filtering capabilities. Traditional applications using pub/sub systems require large-scale deployment and high event throughput. Thus, pub/sub has always put the emphasis on scalability and performance, to the detriment of filtering expressiveness and quality of service. The matching language is usually limited to topic-based or content-based event filtering and does not allow complex stream-based subscriptions to be expressed. Messages are delivered on a best-effort basis without any ordering or reliability guarantees. Recently, modern pub/sub applications such as online games, social networks, and sensor networks, have specifications which extend beyond the basic semantics provided by standard systems. Installing additional services and event processing systems at the endpoints can overcome these limitations. However, this thesis argue that such solutions are inefficient and put an avoidable strain on the pub/sub layer itself. Therefore, the focus of this thesis is to develop integrated solutions to extend pub/sub language expressiveness and quality of service, as well as demonstrate that this approach results in better performance from a holistic perspective. The different pub/sub extensions described are ranked data dissemination, fair subscription filtering, and total order. Each section first describes the applica-
A ug 2 01 9 Trick or Heat ? Manipulating Critical Temperature-Based Control Systems Using Rectification A acks

Temperature sensing and control systems are widely used in the closed-loop control of critical processes such as maintaining the thermal stability of patients, or in alarm systems for detecting temperature-related hazards. However, the security of these systems has yet to be completely explored, leaving potential attack surfaces that can be exploited to take control over critical systems. In this paper we investigate the reliability of temperature-based control systems from a security and safety perspective. We show how unexpected consequences and safety risks can be induced by physical-level attacks on analog temperature sensing components. For instance, we demonstrate that an adversary could remotelymanipulate the temperature sensor measurements of an infant incubator to cause potential safety issues, without tampering with the victim system or triggering automatic temperature alarms. This attack exploits the unintended rectification effect that can be induced in operational and instrumentation amplifiers to control the sensor output, tricking the internal control loop of the victim system to heat up or cool down. Furthermore, we show how the exploit of this hardware-level vulnerability could affect different classes of analog sensors that share similar signal conditioning processes. Our experimental results indicate that conventional defenses commonly deployed in these systems are not sufficient to mitigate the threat, so we propose a prototype design of a low-cost anomaly detector for critical applications to ensure the integrity of temperature sensor signals.
Measuring Functionality of the Low-cost Housing for the Urban Poor: Unheard Voices of Asansol City, West Bengal

In inclusive development paradigm, every person has the right to access basic amenities, and housing is one of them. Urban governance has to provide shelter to its citizens, and when the poor occupy a sizable portion of this population, the roles of urban governance become more crucial. A significant portion of the city dwellers in-migrate into the city from the surrounding areas. They are mainly unskilled or semi-skilled people, who have migrated into the cities in search of livelihood and settle down in places which gradually transforms into slums. In India, public housing as a part of poverty alleviation, aims to provide shelter as well as a comfortable environment to the beneficiaries. The key objectives of this research are to find out the role of the local government of Asansol, West Bengal in providing housing to the landless poor and to examine the responses from the housing dwellers. Mixed method approach has been applied here, and people's responses have been recorded with a semi-structured questionnaire based on purposive sampling technique. However, it has been found that the ability to access essential services is not the same for all sections of the society. This signals that when the questions of accessing resources are linked to the poor, either their voices fail to reach the appropriate places or they remain unheard in most spheres. Thus, the gap between the government and the poor are widening regarding the provision of essential services, accountability and regularity of monitoring of the public housing environment. As a result, the functionality of the low-cost housing is yet to achieve the desired goal of inclusivity in Asansol. Urban space is still exclusive for poor and vulnerable.
Threshold Measurement Model for Perceived Service Quality

This study proposes a threshold measurement model based on the prospect theory and zone of tolerance for the SELVQUAL scale to measure the latent perceived service quality The concept of zone of tolerance is where customers are willing to accept a service discrepancy within a standard they recognize. The discussion focuses on three stages of consumers' mental state and how they relate to observable perceived service quality It then proposes a model that employs a threshold specification representing extent limit as a zone of tolerance. Because the value function in prospect theory describes human perception's dependence on the evaluation of differences, rather than absolute magnitudes, the proposed mode also integrates asymmetric and nonlinear properties. Empirical analysis was implemented using the data collected from several different service sectors, and the proposal model showed better performance as against other competitive models. The results provide an insight into the asymmetric and nonlinear latent structures of consumers'perceived service quality Clustering was conducted by applying estimated thresholds and factor scores to obtain three different kinds of consumer segments.
Impact of Low Span Gap on Subsea Pipeline Vortex Induced Vibration

Vortex induced vibration of subsea pipelines occurs where sections of the pipeline are suspended above the seafloor, as ‘free spans’. The induced vibrations can cause significant fatigue damage to pipelines, requiring costly repairs, and so there is a strong motivation to accurately characterise the phenomenon, to avoid unnecessary remediation work. This project explores vortex induced vibrations by constructing a sequence of models to describe the physical situation. 2D and initial 3D models are described and compared with experimental results.
Partial characterization of exopolysaccharides obtained from novel isolates of Weissella Spp

Ami Patel, Department of Dairy and Food Microbiology, Mansinhbhai Institute of Dairy and Food Technology-MIDFT, Dudhsagar Dairy campus, Mehsana384 002, Gujarat State, India. E-mail: amiamipatel@yahoo.co.in, Phone No.: +91 9825067311 Abstract: Current work was aimed to determine the monosaccharide composition and relative molecular weight of the biopolymer obtained from fermented food isolates of W. cibaria using high-performance anion-exchange chromatography pulse amperometric detection (HPAEC) system and size exclusion chromatography (SEC), respectively. Results revealed that both the W. cibaria isolates established production of homopolysaccharide glucose monomers and had a molecular mass higher than 220 000 Da and suggestive of prospective application as a viscosity improver or stabilizing agent in food formulations.
TERMS OF TRADE , OIL PRICE AND BILATERAL TRADE BALANCE OF SINGAPORE WITH MALAYSIA : SOME EMPIRICAL EVIDENCE

This study examines the impacts of terms of trade and oil price on the bilateral trade balance of Singapore with Malaysia. Bilateral trade balance and terms of trade are found to be jointly determined. The Johansen (1988) cointegration method shows that in the long run, an increase in oil price will lead to an increase in terms of trade. An increase in terms of trade will lead to a decrease in bilateral trade balance. The generalized forecast error variance decomposition (Koop, Pesaran & Potter, 1996; Pesaran & Shin, 1998) shows that oil price, foreign demand, domestic demand and terms of trade are important contributors to bilateral trade balance of Singapore with Malaysia. Generally, terms of trade, domestic demand, foreign demand and oil price are important in the bilateral trade balance determination not only in the short run but also in the long run.
Learning Generative Models from Incomplete Data

Real-world machine learning systems must handle missing data well in order to build robust and reliable systems. One way to tackle this problem is to build a generative model that can learn from incomplete data. Such models can then be used in applications such as image restoration and missing value imputation. To achieve this, this thesis introduces a deep generative model, the Variational Auto-decoder (VAD), a variant of the stochastic gradient variational Bayes (SGVB) estimator first introduced by Kingma and Welling in 2013. To improve the robustness of the model to varying rates of missing data during training and testing, the VAD framework directly optimizes parameters of the approximate posterior of the latent variables. Compared to the common variational autoencoder (VAE) implementation of SGVB, no encoder network is used to approximate the parameters of the approximate posterior. Through empirical evaluation on six datasets, including datasets on image classification, facial landmark detection, and multimodal language, we show that the VAD framework is more robust to different rates of missing data than previous generative models for incomplete data.
Assembly of an optoelectronic system to measure the rotation of the plane of polarization of ligh

This work presents details of an optoelectronic system to measure the rotation of the plane of polarization of light. An electronic circuit was developed to measure light intensity using a photodetector and other optical components. A sample holder was designed using a quartz lens attached to a cap and attached to a PVC pipe. The differential of this proposal is that the optical path can be easily modified allowing different lengths to be studied. This arrangement makes it possible to determine the concentration of optically active substances in aqueous solution. The performance of the measurement system is investigated considering the sensitivity and the limit of detection. Finally, this work is developed based on the open source hardware paradigm and, therefore, all the documentation will be available so that it can be used and improved by the scientific community.
Effect of Seed Powder of Three Pepper Species on the Bionomics of Cowpea Bruchid , Callosobruchus maculatus Fabricius

Seed powder of Afromomum melegueta, Piper guineense and Xylopia aethiopica at the rates of 0.5, 1.0 and 1.5 g/ 20 g seeds of cowpea were assessed for insecticidal activities against Callosobruchus maculatus Fabricius in the laboratory under fluctuating ambient temperature and relative humidity in Makurdi, Benue State, Nigeria. P. guineense caused the highest toxicity (68.53%) at 1.5 g/ 20 g cowpea seeds after 96 hours of exposure. Oviposition deterrency, larvicidal effect and suppression of adult emergence recorded for P. guineense was considerable but failed to match the conventional synthetic insecticide, Permethrin (P > 0.05). A. melegueta at test concentrations and at short storage duration (< 5 days) was not toxic to the bruchid. However, it significantly (P<0.05) deterred oviposition in C. maculatus females when compared to unprotected cowpea seeds. In the study, X. aethiopica protected cowpea seeds better than A. afromomum and gave minimal support to the bionomics of the bruchid. The study seriously suggests an increased need for search for botanical insecticides that can effectively control the resistant cowpea bruchid. Any natural material that cannot give good control of C. maculatus at an economically justified concentration in 24 hours may not be sustainable.
Algorithmics of unitary multigrammars and multimetagrammars

The chapter is dedicated to the algorithmics of unitary multiset grammars and metagrammars. Their application to some actual problems from the area of largescale sociotechnical systems (STS) assessment and optimization is also considered: estimation of capabilities of the producing STS; amounts of resources, necessary to such STS for various orders completion; assessment of STS sustainability/vulnerability to various destructive impacts (natural disasters, technogenic catastrophes, mutual sanctions, etc.); and STS profit maximization, as well as works optimal distribution among non-antagonistic competing STS, operating in the market economy.
NUMERICAL STUDY ON SELF-EXCITED OSCILLATION SWITCHING CURRENT IN HVDC MRTB

This paper presents the numerical study of current self-excited oscillations during the opening of HVDC metallic return transfer breaker (MRTB). The switching arc is simulated using magneto-hydrodynamics (MHD) theory coupled with the electric circuit variation. The calculated result gives good agreement with the experiment, and shows that the arc model can accurately simulate the current oscillation and the commutation process in MRTB. The MRTB prototype in this study is designed to break about 5.2 kA of DC current. The results from both simulation and experiment show that the current oscillation starts at about 16.5 ms and the total arc time is about 24 ms when the commutation capacitor bank and inductor are 72 μF and 173 μH, respectively. This study can help improve the current interruption capability of MRTB.
Y OF THE NUMBER OF BUILDINGS DAMAGED BY OST OF REPAIRS

Published online: 15 January 20 ABSTRACT Flood disasters often cause buildings damaged, for repairs required considerable cost. This paper analyzes estimates of the probability and the number of buildings dam Citarum River flood in the framewo of building damage was carried out us approach. The number of buildings damaged and risk of losses are estimated using the principle of expected value. The analysis shows that the probability estimator of the building damage significantly follows the logistic regression model. Meanwhile, the estimated the building damage is 349, with a loss of IDR67.80 billion.
VARIATIONS IN POPULATION SIZES OF FIVE RODENT TAXA ACROSS A HABITAT GRADIENT IN THE SINHARAJA RAINFOREST , SRI LANKA

© Zoo Outreach Organisation; www.zoosprint. org Manuscript 1374; Received 06 June 2005; Finally accepted 19 November 2005; Date of publication 21 December 2005 2115 January 2006 | ISSN 0973-2535 (Print edition); 0973-2551 (Online edition) Communities are dynamic entities. Within them, populations of species undergo fluctuations in abundance over time, often displaying regular population cycles (Halama & Dueser, 1994). The structure and dynamics of small mammal populations in general reflects variations in the demographic attributes of the individuals in that population as they interact with the biotic and abiotic factors of the environment (Happold & Happold, 1991; Skupski, 1995). Consequently, one would expect habitat characteristics to have an effect on population dynamics of small mammals and this has been demonstrated in many studies (August, 1983; Zollner & Lima, 1997). In the tropics, with continuing deforestation, many natural habitats are drastically altered giving rise to patches of natural forest that are often surrounded by agricultural land or human settlements. This paper investigates the variability of population densities of five rodent taxa across habitats subject to varying levels of human disturbance, in the Sinharaja rainforest in Sri Lanka. The Sinharaja forest is located in the wet zone of Sri Lanka, between 6021'-6026'N & 80021'-80034'E. The vegetation of the northwestern section of the rainforest, where this study was conducted, is classified as lowland wet evergreen forest. The forest was designated a Biosphere Reserve under UNESCO’s Global Network of Biosphere Reserves. Subsequently, UNESCO declared it as a Natural World Heritage. The five rodent taxa investigated are the endemic species Srilankamys ohiensis and Mus mayori, a non-endemic species Mus booduga and two subspecies of the non-endemic species Ratus rattus, namely, R. r. kandianus and R. r. kelaarti. METHODOLOGY Data from a 13-month trapping regime was used to compare the population densities of the five selected murids in different habitat types in Sinharaja. Four major habitat types were selected, namely, unlogged forest, consisting of pristine closed forest with a relatively dense canopy and trees of large height and girth; forest that had been selectively logged in the 1970s (called logged forest); border areas of the forest that had earlier been cleared, cultivated with cash crops and subsequently abandoned for several years and now in secondary scrub jungle (called abandoned habitats) and border areas that were cleared and is used for raising permanent plantations of pine, rubber, tea or cinnamon, and now having monocrops of these species (called plantation).
Floating State of a One-Step Integrated Transportation Vessel with Two Composite Bucket Foundations and Offshore Wind Turbines

Offshore wind power is an important of source renewable energy. As a new technology, the one-step integrated transportation and installation technology of offshore wind power has broader application prospects. In order to ensure stability during the towing process, it is necessary to study the behavior of the wind turbine transportation structure. The numerical model of the specialized transportation vessel was set up by MOSES software. An analysis in the frequency domain and time domain was conducted considering the effects of draft, speed, and wave height on the towing stability of the wind turbine transportation vessel. The results show that the one-step integrated transportation method can ensure stability of the wind turbine during the towing process. Reducing draft, increasing speed, and increasing wave height will reduce the towing stability of the wind turbine. In the practical towing process, the combination of various adverse situations will be avoided.
Development of predictive control strategy using self-identification matrix technique (SMT)

This article describes an easy to use predictive control strategy using selfi-dentification matrix technique (SMT). A description for the condition number effect for suitable tracking behaviour has been analyzed. Simple rules based on the step response of the process are applied for the proposed matrix W-SMT. A new formula is produced for the main controller tuning parameter lambda(rho alpha). In the novel formula, lambda(rho alpha) is mainly extracted by regression analysis of first order plus dead time processes. Several plants are used to compare the proposed controller as function of the tuning parameters and tuning strategy. The effectiveness of the proposed strategy in wide ranging plants parameters has been compared with other techniques. Simulation results show that the use of the proposed strategy results in superior performance compared to previous techniques. Even though the tuning is based on approximation of actual processes with a first order plus dead time model. However, this strategy would not be suitable for systems with strong nonlinearities.
Intermittent Query Processing

Many applications ingest data in an intermittent, yet largely predictable, pattern. Existing systems tend to ignore how data arrives when making decisions about how to update (or refresh) an ongoing query. To address this shortcoming we propose a new query processing paradigm, Intermittent Query Processing (IQP), that bridges query execution and policies, to determine when to update results and how much resources to allocate for ensuring fast query updates. Here, for a query the system provides an initial result that is to be refreshed when policy dictates, such as after a defined number of new records arrive or a time interval elapses. In between intermittent data arrivals, IQP inactivates query execution by selectively releasing some resources occupied in normal execution that will be least helpful (for future refreshes) according to the arrival patterns for new records. We present an IQP prototype based on PostgreSQL that selectively persists the state associated with query operators to allow for fast query updates while constraining resource consumption. Our experiments show that for several application scenarios IQP greatly lowers query processing latency compared to batch systems, and largely reduces memory consumption with comparable latency compared to a state-of-the-art incremental view maintenance technique.
Understanding Business Location Choice Pattern : A Co-Location Analysis on Urban POI Data

The co-localization of businesses has concerned researchers for a long time. With the advances in technology, for the first time we have access to accurate and up-todate location information of businesses in form of public digital maps. This creates an opportunity to analyze the co-location patterns of the businesses with a data-driven approach to obtain an objective and realistic view of such patterns. In this study, we analyze the clustering tendencies and the co-location patterns of the businesses in the three largest cities of the United States. We obtain the dataset using the Google Maps Places API. We first obtain top co-locating patterns using co-location pattern mining techniques. Then we test the significance of the patterns using statistical tests and Monte-Carlo simulation. We find interesting co-location and clustering tendencies among brand names within and across industries as well as clustering tendencies between businesses of certain industries.
A USER-FRIENDLY CODE TO MODEL RADIATION OF HIGH BRIGHTNESS BEAMS

The accelerator community has many codes that model beams and emitted radiation. One of the most important goals of simulations is to accurately model beam parameters and compare results to those obtained from real laboratory diagnostics. Many of these codes are specialized and often, as in start-to-end simulations, multiple codes are employed in a subsequent fashion. This paper describes the development of a user-friendly code that models the coherent radiation of high brightness beams, with a heavy emphasis on simulation of observables via laboratory diagnostics.
Configuration of profiling tools for C/C++ applications under 64-bit Linux

Application profiling tools are the instruments used to measure software performance at the function and application levels. Without careful configuration of the tools and the environment, invalid results are readily obtained. The errors may not become obvious if a large, complex application is profiled before more simple validations are attempted. A set of four simple, synthetic reference applications was used to validate configurations for profiling under x86 64 Linux. Results from one validated configuration and examples of observed invalid results are presented. While validation results for specific versions of software quickly lose value, this exercise demonstrates how future configurations can be validated and shows the kinds of errors that may reoccur.