Miracle-dz/UniFAR-FTUs huggingface dataset:
[O III] / [N II] as an abundance indicator at high redshift

Among 'empirical' methods of estimating oxygen abundances in extragalactic H II regions, the use of the ratio of nebular lines of [O III] and [N II], first introduced by Alloin et al., is reappraised with modern calibration data and shown to have certain advantages over Ρ 23 ≡ ([On] + [O III])/Hβ and N2 ≡ [N II] λ6583/Hα, particularly when applied to star-forming galaxies at high redshifts.
Efficient Contextual Semi-Bandit Learning

We study a variant of the contextual bandit problem, where on each round, the learner plays a sequence of actions, receives a feature for each individual action, and reward that is linearly related to these features. This setting has applications to network routing, crowd-sourcing, personalized search, and many other domains. If the linear transformation is known, we analyze an algorithm that is structurally similar to the algorithm of Agarwal et a. [2014] and show that it enjoys a regret bound between $\tilde{O}(\sqrt{KLT \ln N})$ and $\tilde{O}(L\sqrt{KT \ln N})$, where $K$ is the number of actions, $L$ is the length of each action sequence, $T$ is the number of rounds, and $N$ is the number of policies. If the linear transformation is unknown, we show that an algorithm that first explores to learn the unknown weights via linear regression and thereafter uses the estimated weights can achieve $\tilde{O}(\|w\|_1(KT)^{3/4} \sqrt{\ln N})$ regret, where $w$ is the true (unknown) weight vector. Both algorithms use an optimization oracle to avoid explicit enumeration of the policies and consequently are computationally efficient whenever an efficient algorithm for the fully supervised setting is available.
Performance of a Multi-channel MAC Protocol Implemented in Multi-robot System

In the wireless network, the throughput decreases rapidly with increasing the number of nodes while using single-channel communication simultaneously. Using multi-channel schemes is a solution of boosting throughput. In this paper, we present a protocol implementation, utilizing multiple channels in an autonomous multi-robot system which consists of several simple physical robots, in order to improve throughput. Each robot equipped with a single 802.15. 4 radio transceiver which provides 16 channels for use. Our schemes employ a common control-channel and data channels. A simple approach based on RTS / CTS message at control-channel is used to dynamically allocate channels for robots in such distributed network. Some practical experiments were done to check whether control channel congestion can occur when the proposed protocols implemented in our robot systems. As a result, the proposed multi-channel protocol can provide a relatively stable and higher throughput than that obtained by using the CSMA with a single-channel, with increasing the number of simultaneous sending robots.
Travel Package Recommendation System

Online travel package informations for tourist is playing vital role nowadays. The online travel information imposes an increasing challenge for tourists who have to choose from a large number of available travel packages for satisfying their personalized needs. The TAST Model can represent travel packages and tourists by different topic distributions, where the topic is generalized on both the tourists and the locations and seasons of the landscapes. Based on the Topic Model representation, this project proposes a cocktail approach to generate the lists for personalized travel package recommendation. This project extends the TAST Model to the TRAST Model for capturing the latent relationships among the tourists in each travel
Amalgamation of Smartphone Using Byte Code Level Cross Compilation

In academic institutions, corporations, and government entities Smartphone's laptops are joined as genuine network endpoints. IT must be conscious of the differences, as well as similarities, in the supervision of security for the mobile devices between laptop and Smartphone platforms. With these dissimilarities in mind, best practices can be applied by IT to guarantee the confidentiality and security of corporate communications from both inside and outside of the network boundary. To handle the security issues in smart phones is a major problem these days. Different smartphone like Apple's iPhone, Google's Android and Palm Pre using WebOS as graphical user interface. Porting different applications to different smart phones incurs elevated overhead because of its special programming representation and environment. The progress of it can be smoothen by generating an XML- on the basis of demonstration of byte code we entitle XMLVM which cross compiles an Android app to the iPhone and the Palm Pre, and it considerably decrease the Porting endeavor. The foundation of cross compiler is Java byte code directives that are interpreted to high-level programming languages which aim Smartphone supports. The API between smart phones are mapped using compatibility libraries.
The Art of Short Selling

FACTS AND PRACTITIONERS. Overview: Wealth with Risk. Short Sellers. CATEGORIES AND EXAMPLES. Bubble Stocks. High-Multiple Growth Stocks, Part 1: High Risk, Low Return. High-Multiple Growth Stocks, Part 2: High Returns, Faltering Growth. If You Can't Read It, Short It. Money Suckers: Coining Money to Live. If You Can't Fix It, Sell It. Industry Obsolescence: Theme Stocks. All of the Above: Crazy Eddie. HISTORY AND GENERAL LESSONS. Shortcomings. History and Controversy. Six Pillars of Fundamental Short Selling. Appendix. Index.
QR code based mutual authentication protocol for Internet of Things

In the Internet of Things (IoT), security is important and challenging; however, it is often neglected. This paper presents a smart home scenario, together with its requirements for a secure and user friendly mutual authentication protocol. Protocols developed for the internet are often not applicable to the Internet of Things due to hardware limitations and physical inaccessibility of devices. To tackle the challenge of a usable and secure device authentication in the area of the IoT, a QR code based mutual authentication protocol is proposed. The protocol supports two operation modes to handle different hardware configurations with respect to cameras and displays. Both operation modes are secure against attacks within the proposed attacker model. The protocol can also be used to exchange the public keys between two parties, in order to establish a secure channel without a trusted third party.
A joint vertical handover technique for heterogeneous wireless networks

Fast and seamless handover are weighty issues in 3G systems. Based on UMTS and WLAN Converging architecture [1], a joint vertical handover decision strategy (jVHOD) was proposed for heterogeneous wireless networks. Also, several significant metrics were evaluated through a vertical handover performance model, which was validated by computer simulation. The analytical results showed that jVHOD had better performance than the conventional in terms of the number of handoffs and available bandwidth, but a little longer packet delay. To design optimal vertical handover strategies the application requirement threshold should be properly adjusted by an appropriate trade-off of related handover performance metrics.
A global assessment of a large monocot family highlights the need for group-specific analyses of invasiveness

There are several emerging generalizations in invasion biology, but often the factors determining invasiveness are group-specific. Similar to other plant families, Araceae species (arums or aroids) with large native ranges and that have been widely introduced are more likely to become invasive. What is unique to the family is the great diversity of growth forms, some more likely to become invasive than others. We identify nine lineages in the family that have a greater tendency to invasiveness (including the duckweed lineage, as well as the genera Alocasia and Epipremnum). A precautionary approach should be taken for such clades.
Mobile Robot Navigation for Remote Handling operations in ITER

This paper briefly summarizes the work related with mobile robotics developed by IST on the field of remote handling operations to be carried out in the International Thermonuclear Experimental Reactor (ITER) by a transfer casks system. The transport operations of contaminated and heavy loads inside ITER buildings requires optimized trajectories. Approaches of path planning and trajectory optimization based on geometric constrains and also based on rigid body dynamics were studied and tested in the cluttered scenarios of ITER. The localization problem of mobile robots was also addressed, with a novel approach of using an optimized sensor network installed on the scenario with probabilistic algorithms to estimate, in real time, the pose of a vehicle, or a set of vehicles, operating in the scenario. The navigation is also considered with three modes of operation: automatic, semi-automatic and manual. Virtual Reality Systems and Human Machine Interfaces are under development. A summary of results achieved so far are presented in the paper.
Design Parameters in Multimodal Games for Rehabilitation.

Objectives: The repetitive and sometimes mundane nature of conventional rehabilitation therapy provides an ideal opportunity for development of interactive and challenging therapeutic games that have the potential to engage and motivate the players. Certain game design parameters that may encourage patients to actively participate by making the games more enjoyable have been identified. In this article, we describe a formative study in which we designed and evaluated some of these parameters with healthy subjects. Materials and Methods: The "operant conditioning" and "scoring" design parameters were incorporated in a remake of a classic labyrinth game, "Marble Maze. " A group of participants (n=37) played the game twice: Once in the control condition without both modalities and then with either one of the parameters or with both. Measures of game duration and number of fails in the game were recorded along with survey questionnaires to measure player perceptions of intrinsic motivation on the game. Results: Longer playtimes, higher levels of interest/enjoyment, and effort to play the game were recorded with the introduction of these parameters. Conclusions: This study provides an understanding on how game design parameters can be used to motivate and encourage people to play longer. With these positive results, future aims are to test the parameters with stroke patients, providing much clearer insight as to what influences these parameters have on patients undergoing therapy. The ultimate goal is to utilize game design in order to maintain longer therapeutic interaction between a patient and his or her therapy medium.
Pricing Foreign Equity Option with time-changed Lévy Process

In this paper we propose a general foreign equity option pricing framework that unifies the vast foreign equity option pricing literature and incorporates the stochastic volatility into foreign equity option pricing. Under our framework, the time-changed Lévy processes are used to model the underlying assets price of foreign equity option and the closed form pricing formula is obtained through the use of characteristic function technology. Numerical tests indicate that stochastic volatility has a dramatic effect on the foreign equity option prices.
6 Discovery of tacit knowledge and topical ebbs and flows within the utterances of online community

This chapter will show how to derive post-semantic context ([2][3]) based on vector representations of words (described in Chapter 5). The core problem is to discover relevant word associations in relation to seed words in the utterance. This may involve uncovering implicit associations or re-weighting explicit associations more highly. In other words, the goal of the mining process is to provide highly weighted associations, firstly between a seed word such as “John”, and words inherent to the background information surrounding “John” such as “Smith”, “Microsoft” etc., and secondly with terms implicit in the original utterance (Note: we continue using the example framed in §5.2) It is our view that the set of such associations form a part, if not the basis, of Grice’s conversational implicature [1]. The chapter describes techniques for computing associations in a dimensional space that have shown promise in the literature. The goal is to provide some initial insights as to their usefulness for mining conversational implicature by applying them to a small set of email utterances. The second illustration illuminates how the representation and techniques inform of association’s changes over time capturing the ebb and flow of conversations in the community of a mailing list.
BMP-2 Induces Versican and Hyaluronan That Contribute to Post-EMT AV Cushion Cell Migration

Distal outgrowth and maturation of mesenchymalized endocardial cushions are critical morphogenetic events during post-EMT atrioventricular (AV) valvuloseptal morphogenesis. We explored the role of BMP-2 in the regulation of valvulogenic extracellular matrix (ECM) components, versican and hyaluronan (HA), and cell migration during post-EMT AV cushion distal outgrowth/expansion. We observed intense staining of versican and HA in AV cushion mesenchyme from the early cushion expansion stage, Hamburger and Hamilton (HH) stage-17 to the cushion maturation stage, HH stage-29 in the chick. Based on this expression pattern we examined the role of BMP-2 in regulating versican and HA using 3D AV cushion mesenchymal cell (CMC) aggregate cultures on hydrated collagen gels. BMP-2 induced versican expression and HA deposition as well as mRNA expression of versican and Has2 by CMCs in a dose dependent manner. Noggin, an antagonist of BMP, abolished BMP-2-induced versican and HA as well as mRNA expression of versican and Has2. We further examined whether BMP-2-promoted cell migration was associated with expression of versican and HA. BMP-2- promoted cell migration was significantly impaired by treatments with versican siRNA and HA oligomer. In conclusion, we provide evidence that BMP-2 induces expression of versican and HA by AV CMCs and that these ECM components contribute to BMP-2-induced CMC migration, indicating critical roles for BMP-2 in distal outgrowth/expansion of mesenchymalized AV cushions.
A service-oriented architecture for financial business processes A case study in trading strategy simulation

Recent years have witnessed a tremendous growth in information and communication technologies that facilitate the design and implementation of complex inter-enterprise business processes. One of the major innovations is the concept of service-oriented architectures which considers software systems as being made up with autonomous, dynamic, loosely coupled and service-based components. This paper describes an attempt to automate financial business processes by utilizing a number of basic and composite services. As a case study, the paper describes the implementation of a realistic business process that is related to simulating a trading strategy in capital markets. An evaluation of the appropriateness of service-oriented architectures is conducted taking into account a number of factors such as flexibility, performance and development costs.
Predicting hypoglycemia in diabetic patients using data mining techniques

The proper control of blood glucose levels in diabetic patients reduces serious complications. Yet tighter glycemic control increases the risk of developing hypoglycemia, a sudden drop in patients' blood glucose levels that causes coma and possibly death if proper action is not taken immediately. In this paper, we propose a hypoglycemia prediction model, using recent history of subcutaneous glucose measurements collected via Continuous Glucose Monitoring (CGM) sensors. The model is able to predict hypoglycemia events within a prediction horizon of thirty minutes accurately (sensitivity= 86.47%, specificity= 96.22, accuracy= 95.97%) using only the last two glucose measurements and the difference between them. More remarkably, this study shows the ability to develop a generalized prediction model suitable for predicting hypoglycemia events for the group of patients participating in the study.
Identification of Trademarks Painted on Ground and Billboards Using H.264 Compressed Domain Features from Sports Videos

In this paper a novel methodology to automatically identify and localize the Trademarks from video using compress domain features of H.264 video is proposed. We have used the H.264 video stream as input and use some compress domain features obtained during parsing and decoding process of the stream to identify the text regions. The features used in our approach are (i) Edge strength information for each Macro block obtained from de-blocking filter edges and (ii) DC component of integer transformed luma coefficients. These features are used to localize the text regions. Also authors had proposed a decision making process based on these features to determine whether a recognized region is score-card or a trademark. Experimental results shows that the proposed approach can work in real time in any commercially available DSP platform and can detect the trademarks successfully. The system on different type of sports videos gives a recall rate of . 95 and a precision rate of . 92
Video recognition using ambient light sensors

We present a method for recognizing a video that is playing on a TV screen by sampling the ambient light sensor of a user's smartphone. This improves situation awareness in pervasive systems because the phone can determine what the user is currently watching on TV. Our method works even if the phone has no direct line of sight to the TV screen, since ambient light reflected from walls is sufficient. Our evaluation shows that a 100% recognition ratio of the current TV channel is possible by sampling a sequence of 15 to 120 seconds length, depending on more or less favorable measuring conditions. In addition, we evaluated the recognition ratio when the user is watching video-on-demand, which exhibits a large set of possible videos. Recognizing professional YouTube videos resulted in a 92% recognition ratio; amateur videos were recognized correctly with 60% because these videos have fewer cuts. Our method focuses on detecting the time difference between video cuts because the light emitted by the screen changes instantly with most cuts and this is easily measurable with the ambient light sensor. Using the ambient light sensor instead of the camera greatly benefits energy consumption, bandwidth usage and raises less privacy concerns. Hence, it is feasible to run the measurement in the background for a longer time without draining the battery and without sending camera shots to a remote server for analysis.
Proteomic analysis of middle and late stages of bread wheat (Triticum aestivum L.) grain development

Proteomic approaches were applied in four grain developmental stages of the Chinese bread wheat Yunong 201 and its ethyl methanesulfonate (EMS) mutant line Yunong 3114. 2-DE and tandem MALDI-TOF/TOF-MS analyzed proteome characteristics during middle and late grain development of the Chinese bread wheat Yunong 201 and its EMS mutant line Yunong 3114 with larger grain sizes. We identified 130 differentially accumulated protein spots representing 88 unique proteins, and four main expression patterns displayed a dynamic description of middle and late grain formation. Those identified protein species participated in eight biochemical processes: stress/defense, carbohydrate metabolism, protein synthesis/assembly/degradation, storage proteins, energy production and transportation, photosynthesis, transcription/translation, signal transduction. Comparative proteomic characterization demonstrated 12 protein spots that co-accumulated in the two wheat cultivars with different expression patterns, and six cultivar-specific protein spots including serpin, small heat shock protein, β-amylase, α-amylase inhibitor, dimeric α-amylase inhibitor precursor, and cold regulated protein. These cultivar-specific protein spots possibly resulted in differential yield-related traits of the two wheat cultivars. Our results provide valuable information for dissection of molecular and genetics basis of yield-related traits in bread wheat and the proteomic characterization in this study could also provide insights in the biology of middle and late grain development.
Policy Games with Distributional Conflicts

This paper studies the effects generated by limited asset market participation under different fiscal and monetary policy games. We find that the distributional conflict due to limited asset market participation rises the inflation bias when the two authorities are independent and play strategically. A fully redistributive fiscal policy eliminates the extra inflation bias. However, the latter is cancelled at the cost of strongly reducing the Ricardian welfare in terms of consumption equivalents. A partial redistributive fiscal policy is able to reduce the inflation bias, but generates a strong Government bias. Finally, despite a fully conservative monetary policy is necessary to get price stability, it still implies a very strong reduction in liquidity constrained consumers welfare, in the absence of a redistributive fiscal policy. The model also implies some interesiting results when simulating a financial crisis scenario.
Control of an active pelvis orthosis for gait assistance in the elderly

— Gait impairment is a common consequence with people getting old, bringing a great inconvenience for their daily life. In this paper, a lightweight active pelvis orthosis is used to provide assistance to improve the mobility of the elderly. An adaptive oscillator based control strategy is proposed to predict the next status of a hip joint angle. Then the desired assistive torque is estimated by multiplying the predicted and current angle difference by a virtual stiffness. This control strategy is evaluated with an elder subject walking on the treadmill wearing the orthosis. Experiment results showed usability of the device for elderly gait assistance. Under transparent mode utilization, the orthosis does not hinder intentional movement of the wearer while, under assistive mode utilization, it is capable to provide user with a suitable assistive torque.