Miracle-dz/UniFAR-FTUs huggingface dataset:
How does the size of a document affect linked open data user modeling strategies?

Semantic user modeling techniques use a representation based on concepts that are linked to a Knowledge Base (KB). Current research uses Linked Open Data (LOD) because of its comprehensive interlinked datasets, which allow excellent cross-domain modeling capabilities. LOD semantic user profiles have been employed in the context of Social Networks, which require user's posts as input. Less attention has been paid to other domains for which input documents differ from short and concise posts. In this paper, we perform a comparative study of different LOD semantic user modeling techniques by taking different types of documents as input: short, medium, and long texts. We selected recommending academic documents based on modeling the user's research interests as the evaluation scenario. Academic documents' titles, abstracts, and the body of text were used, respectively, for short, medium, and long documents. Our results showed that expansion strategies work best for short and medium documents while filtering strategies are more appropriate when the whole document is used as input. Finally, we explored diverse alternatives if documents did not include a summary or abstract, and we concluded that, in this case, the two best alternatives are a filtering strategy over the whole text and the use of TextRank algorithm to build a set of key sentences to be used as input of an expansion strategy.
Low-Rank Tensor Learning with Discriminant Analysis for Action Classification and Image Recovery

Tensor completion is an important topic in the area of image processing and computer vision research, which is generally built on extraction of the intrinsic structure of the tensor data. Drawing on this fact, action classification, relying heavily on the extracted features of high-dimensional tensors, may indeed benefit from tensor completion techniques. In this paper, we propose a low-rank tensor completion method for action classification, as well as image recovery. Since there may exist distortion and corruption in the tensor representations of video sequences, we project the tensors into a subspace, which contains the invariant structure of the tensors. In order to integrate useful supervisory information for classification, we adopt a discriminant analysis criterion to learn the projection matrices. The resulting multi-variate optimization problem can be effectively solved using the augmented Lagrange multiplier (ALM) algorithm. Experiments demonstrate that our method results with better accuracy compared with some other state-of-the-art low-rank tensor representation learning approaches on the MSR Hand Gesture 3D database and the MSR Action 3D database. By denoising the Multi-PIE face database, our experimental setup testifies the proposed method can also be employed to recover images.
n XS 61 fH CO o CD ON THE ASYMPTOTIC DIRECTIONS OF THE S-DIMENSIONAL OPTIMUM GRADIENT METHOD

The optimum s-gradient method for minimizing a positive definite quadratic function f(x) on E has long been known to converge for s > 1 . For these £ the author studies the directions from which the iterates x. approach their limit, and extends to s > 1 a theory proved by Akaike for s = 1 . It is shown that f (x. ) can never converge to its minimum value faster than linearly, except in degenerate cases where it attains the minimum in one step. Computer Science Department Stanford University ♦Research sponsored by the U. S. Office of Naval Research under contract Nonr 22^(57) = NR (M 211.
Development and maintenance of a specific pathogen-free (SPF) zebrafish research facility for Pseudoloma neurophilia.

Pseudoloma neurophilia (Microsporidia) is very common in zebrafish Danio rerio research facilities. A new zebrafish facility has been established at the Sinnhuber Aquatic Resource Laboratory (SARL), Oregon State University, Corvallis, OR, U.S.A. , and this was an opportunity to establish a specific pathogen-free (SPF) colony of zebrafish for this microsporidium. Progeny from 9 zebrafish lines (n=2203) were initially transferred to the SARL facility in 2007 following PCR screening of broodstock and a subpopulation of progeny (258 of 1000 fish from each family). Screening of fish for P. neurophilia within the facility was conducted as follows: (1) Moribund or dead fish were examined by histology. (2) Each line was regenerated on a 4 mo rotation, and a subsample of each of these major propagations (60 fry, in pools of 10) was PCR-screened at 10 d post hatch. (3) Adult fish (approximately 1 yr old) from each line were euthanized; 20 fish were examined by histology and the brains of another 60 fish (in pools of 5) were screened by PCR. (4) This screening was replicated on sentinel fish held in 4 tanks receiving effluent water from all tanks in the facility (20 fish per tank). (5) Four-month old fish (n=760) from a toxicology study conducted within the laboratory were examined by histology. To date, we have evaluated 2800 fish by PCR and 1222 fish by histology without detecting P. neurophilia. Thus, we have established 9 lines of zebrafish SPF for P. neurophilia. However, 26 fish exhibited mycobacteriosis, with acid-fast bacteria present in tissue sections, and 49 other fish had incidental lesions.
Prospective Study of Placental Angiogenic Factors and Maternal Vascular Function Before and After Preeclampsia and Gestational Hypertension

Background— Preeclampsia is a life-threatening pregnancy syndrome of uncertain origin. To elucidate the pathogenesis, we evaluated the temporal relationships between changes in vascular function and circulating biomarkers of angiogenic activity before and after the onset of preeclampsia and gestational hypertension. Methods and Results— Maternal mean arterial pressure, uterine artery pulsatility index, brachial artery flow-mediated dilatation, and serum concentrations of placental growth factor (PlGF), soluble fms-like tyrosine kinase 1 (sFlt-1), and soluble endoglin were prospectively measured in 159 women from 10 weeks gestation until 12 weeks postpartum. At 10 to 17 weeks, women who developed preterm preeclampsia had lower serum PlGF (P=0.003), higher soluble endoglin (P=0.006), and higher sFlt-1:PlGF ratio (P=0.005) compared with women who later developed term preeclampsia, gestational hypertension, or normotensive pregnancy. At 10 to 17 weeks, mean arterial pressure inversely correlated with serum PlGF (r=−0.19, P=0.02); at 18 to 25 weeks, with soluble endoglin (r=0.18, P=0.02); and at 26 to 33 weeks, with sFlt-1 (r=0.28, P<0.001). At 23 to 25 weeks, uterine artery pulsatility index correlated with serum soluble endoglin (r=0.19, P=0.02) and sFlt-1 levels (r=0.17, P=0.03). Flow-mediated dilatation was higher during a pregnancy with gestational hypertension compared with preeclampsia (P=0.001). Twelve weeks postpartum, serum PlGF was higher in women who had a hypertensive pregnancy compared with a normotensive pregnancy (P<0.001). Conclusions— These observations support a role for placenta-derived angiogenic biomarkers in the control of maternal vascular resistance of preeclampsia. Gestational hypertension develops differently, with a hyperdynamic circulation and angiogenic biomarker profile similar to normotensive pregnancy. Larger studies of unselected women are needed to ascertain whether measures of these angiogenic biomarkers assist with the prediction and prognosis of preeclampsia and whether postpartum measures of serum PlGF have a role in predicting future cardiovascular disease.
STRONG VANET SECURITY ON A BUDGET

This article proposes a security authentication process that is well-suited for Vehicular Ad-hoc Networks (VANET). As compared to current Public Key Infrastructure (PKI) proposals for VANET authentication, the scheme is significantly more efficient with regard to bandwidth and computation. The scheme uses time as the creator of asymmetric knowledge. A sender creates a long chain of keys. Each key is used for only a short period of time to sign messages. When a key expires, it is publicly revealed, and then never again used. (The sender subsequently uses the next key in its chain to sign future messages.) Upon receiving a revealed key, recipients authenticate previously received messages. The root of a sender's keychain is given in a certificate signed by an authority. This article describes several possible certificate exchange methods. It also addresses privacy issues in VANET, specifically the tension between anonymity and the ability to revoke certificates.
Learning User Attributes via Mobile Social Multimedia Analytics

Learning user attributes from mobile social media is a fundamental basis for many applications, such as personalized and targeting services. A large and growing body of literature has investigated the user attributes learning problem. However, far too little attention has been paid to jointly consider the dual heterogeneities of user attributes learning by harvesting multiple social media sources. In particular, user attributes are complementarily and comprehensively characterized by multiple social media sources, including footprints from Foursqare, daily updates from Twitter, professional careers from Linkedin, and photo posts from Instagram. On the other hand, attributes are inter-correlated in a complex way rather than independent to each other, and highly related attributes may share similar feature sets. Towards this end, we proposed a unified model to jointly regularize the source consistency and graph-constrained relatedness among tasks. As a byproduct, it is able to learn the attribute-specific and attribute-sharing features via graph-guided fused lasso penalty. Besides, we have theoretically demonstrated its optimization. Extensive evaluations on a real-world dataset thoroughly demonstrated the effectiveness of our proposed model.
dCtBP mediates transcriptional repression by Knirps, Krüppel and Snail in the Drosophila embryo

The pre‐cellular Drosophila embryo contains 10 well characterized sequence‐specific transcriptional repressors, which represent a broad spectrum of DNA‐binding proteins. Previous studies have shown that two of the repressors, Hairy and Dorsal, recruit a common co‐repressor protein, Groucho. Here we present evidence that three different repressors, Knirps, Krüppel and Snail, recruit a different co‐repressor, dCtBP. Mutant embryos containing diminished levels of maternal dCtBP products exhibit both segmentation and dorsoventral patterning defects, which can be attributed to loss of Krüppel, Knirps and Snail activity. In contrast, the Dorsal and Hairy repressors retain at least some activity in dCtBP mutant embryos. dCtBP interacts with Krüppel, Knirps and Snail through a related sequence motif, PXDLSXK/H. This motif is essential for the repression activity of these proteins in transgenic embryos. We propose that dCtBP represents a major form of transcriptional repression in development, and that the Groucho and dCtBP co‐repressors mediate separate pathways of repression.
Interdependence of transmit power and cell bandwidth in cellular mobile radio networks

The assignment of resources to the cells of a cellular mobile radio network is usually done by assigning certain parts of the total bandwidth to the cells. With the use of adaptive transmission, power can be considered as a resource and taking power into account in the assignment of resources to cells offers additional flexibility, especially in achieving efficient assignments and in adapting the network to varying capacity demands. Considering power and bandwidth jointly requires the knowledge of their interdependence since they are exchangeable. Concerning a single link, this interdependence has been stated by Shannon and is well known. For the assignment of resources to cells, however, this interdependence has to be known for the whole cell. In this paper, an analytic approach to modelling the interdependence of transmit power and cell bandwidth considering outage probability is presented. The GammaB-Characteristic, where Gamma is a term considering the power of signal, noise and interference, is introduced as a representation of this interdependence and a method for the on-line measurement of GammaB-Characteristics for practical application is presented. The applicability of the proposed approach is validated using simulations and a broad spectrum of applications for operation and optimisation of mobile radio networks based on GammaB-Characteristics is proposed.
The Fantasia legacy: origins, innovations and cultural aspirations

Fantasia (Sharpsteen, 1940) is considered by many as Walt Disney's "most ambitious undertaking and in all respects his most controversial endeavour" (Maltin, 2000, p.39). This study investigates the different aspects of Fantasia's (Sharpsteen, 1940) conception, production, evolution and reception. It explores the reasons behind Fantasia's (Sharpsteen, 1940) production, and suggests reasons for its failures and successes. The first chapter of this study addresses the reasons behind Fantasia's (Sharpsteen, 1940) production, and explores the economic and artistic reasoning behind it. This chapter draws conclusions from this analysis determines whether Fantasia (Sharpsteen, 1940) was purely a product of the process of differentiation, or whether other factors were involved. This study examines the different technical innovations which were involved with the production of Fantasia (Sharpsteen, 1940) and Fantasia 2000 (Butoy, 1999) as well as new technologies which were developed throughout. Links are drawn between the two productions technical achievements and comparisons are made. Artistic and cultural aspirations of Fantasia (Sharpsteen, 1940) and Fantasia 2000 (Butoy, 1999) are discussed. The cultural climate is discussed in regards to intent and reception, and conclusions concerning Fantasia's (Sharpsteen, 1940) initial critical and box office failures are drawn. This study draws upon a range of different disciplines such as animation studies, cultural studies, historical studies as well as audience studies, marketing and economic elements. It is felt that in doing so this study provides a wide ranging assessment of the issues outlined. The intent and origins of a film are influenced by many elements at the time of its conception, and through considering the cultural, historical, artistic and economic elements, a full assessment will be able to take place. Using an analysis of the marketing of Fantasia (Sharpsteen, 1940), combined with a cultural assessment, this provides a clear assessment of the reasons behind Fantasia's (Sharpsteen, 1940) initial negative critical and audience reception.
Guidelines on the use of therapeutic apheresis in clinical practice—Evidence‐based approach from the apheresis applications committee of the American Society for Apheresis

The American Society for Apheresis (ASFA) Apheresis Applications Committee is charged with a review and categorization of indications for therapeutic apheresis. Beginning with the 2007 ASFA Special Issue (fourth edition), the subcommittee has incorporated systematic review and evidence‐based approach in the grading and categorization of indications. This Fifth ASFA Special Issue has further improved the process of using evidence‐based medicine in the recommendations by refining the category definitions and by adding a grade of recommendation based on widely accepted GRADE system. The concept of a fact sheet was introduced in the Fourth edition and is only slightly modified in this current edition. The fact sheet succinctly summarizes the evidence for the use of therapeutic apheresis. The article consists of 59 fact sheets devoted to each disease entity currently categorized by the ASFA as category I through III. Category IV indications are also listed. J. Clin. Apheresis, 2010. © 2010 American Society for Apheresis
Implementing Optimal Policy Through Inflation-Forecast Targeting

We examine to what extent variants of inflation-forecast targeting can avoid stabilization bias, incorporate history-dependence, and achieve determinacy of equilibrium, so as to reproduce a socially optimal equilibrium. We also evaluate these variants in terms of the transparency of the connection with the ultimate policy goals and the robustness to model perturbations. A suitably designed inflation-forecast targeting rule can achieve the social optimum and at the same time have a more transparent connection to policy goals and be more robust than competing instrument rules.
What do we know about needs for help after suicide in different parts of the world? A phenomenological perspective.

BACKGROUND "A person's death is not only an ending: it is also a beginning - for the survivors. Indeed, in the case of suicide, the largest public health problem is neither the prevention of suicide (.), nor the management of attempts (.), but the alleviation of the effects of stress in the survivor-victims of suicidal deaths, whose lives are forever changed and who, over a period of years, numbers in the millions . " (Edwin S. Shneidman, 1973). AIMS As there is no doubt that suicide postvention should be given a more prominent position on the agenda than is presently the case, this paper explores what we now know about perceived needs for help on the part of suicide bereaved in different parts of the world. METHODS A search of related literature in the field was undertaken using the PubMed/PsychInfo databases. In addition, professionals throughout the world working in the field of suicide postvention were invited to submit reports about suicide postvention measures or literature. RESULTS Very little research was found that reflected the perceived needs for help on the part of the bereaved - and all the studies stemmed from countries in the Western world. However, the bereaved in these studies agreed about a common need for peer and social support, and that professional help must be adapted to and offered with respect for individual needs. Thus, it seems that in societies in which the stigma about suicide has diminished, the bereaved experience very similar needs for help, whereas in other societies it is difficult to talk about their need for help because of the sanctions and taboos connected to suicide. CONCLUSIONS We need far more culturally sensitive research in order to explore and clarify how each community understands suicide and reacts to families who have lost someone by suicide.
Wide band channel characterisation in coloured noise using the reversible jump MCMC

This paper presents a novel approach for characterizing wideband (CDMA) multiple dimensional channels for the wireless environment in arbitrarily coloured additive Gaussian noise. This characterization is sufficient for the specification of optimal multichannel space-time receivers. The proposed solution is defined in the Bayesian framework and uses the reversible jump Markov chain Monte Carlo (MCMC) method to obtain estimates of the number of scatterers, their directions of arrival and their times of arrival. The developed method is applied to simulated and real measured data to verify the performance of the approach.
A secure migration process for mobile agents

This article describes a decentralized secure migration process of mobile agents between Mobile‐C agencies. Mobile‐C is an IEEE Foundation for Intelligent Physical Agents (FIPA) standard compliant multi‐agent platform for supporting C/C++ mobile and stationary agents. Mobile‐C is specially designed for mechatronic and factory automation systems where malicious agents may cause physical damage to machinery and personnel. As a mobile agent migrates from one agency to another in an open network, the security concern of mobile agent systems should not be neglected. Security breaches can be minimized considerably if an agency only accepts mobile agents from agencies known and trusted by the system administrator. In Mobile‐C, a strong authentication process is used by sender and receiver agencies to authenticate each other before agent migration. The security framework also aims to guarantee the integrity and confidentiality of the mobile agent while it is in transit. This assures that all agents within an agency framework were introduced to that framework under the supervision and permission of a trusted administrator. The Mobile‐C Security protocol is inspired from the Secure Shell (SSH) protocol, which avoids a single point of failure since it does not rely on a singular remote third party for the security process. In this protocol, both agencies must authenticate each other using public key authentication, before a secure migration process. After successful authentication, an encrypted mobile agent is transferred and its integrity is verified by the receiver agency. This article describes the Mobile‐C secure migration process and presents a comparison study with the SSH protocol. The performance analysis of the secure migration process is performed by comparing the turnaround time of mobile agent with and without security options in a homogeneous environment. Copyright © 2010 John Wiley & Sons, Ltd.
A survey of serious games on sustainable development

The continuing depletion of natural resources has become a major focus for the society at large. There is an increasing recognition of the need to sustain an ecologically-balanced environment, while, at the same time, exploring and exploiting the natural resources to satisfy the ever-increasing demands of the human race. A profound solution to this is the adoption of sustainable development practices. Increasing the awareness towards a more sustainable future is thus critical, and one way to achieve this is through the use of decision games called “serious games”. Serious games are gaining in popularity as tools that add entertainment to teaching and training. In this paper we undertake a review of serious games on sustainable development with a view to facilitate the understanding of the issues around sustainability, to identify opportunities towards improving the feature-set of these games, and for enhancing knowledge around sustainable development strategies.
Rates and predictors of relapse after natural and treated remission from alcohol use disorders.

AIMS This study examined the rates and predictors of 3-year remission, and subsequent 16-year relapse, among initially untreated individuals with alcohol use disorders who did not obtain help or who participated in treatment and/or Alcoholics Anonymous in the first year after recognizing their need for help. DESIGN AND MEASURES A sample of individuals (n = 461) who initiated help-seeking was surveyed at baseline and 1 year, 3 years, 8 years and 16 years later. Participants provided information on their life history of drinking, alcohol-related functioning and life context and coping. FINDINGS Compared to individuals who obtained help, those who did not were less likely to achieve 3-year remission and subsequently were more likely to relapse. Less alcohol consumption and fewer drinking problems, more self-efficacy and less reliance on avoidance coping at baseline predicted 3-year remission; this was especially true of individuals who remitted without help. Among individuals who were remitted at 3 years, those who consumed more alcohol but were less likely to see their drinking as a significant problem, had less self-efficacy, and relied more on avoidance coping, were more likely to relapse by 16 years. These findings held for individuals who initially obtained help and for those who did not. CONCLUSIONS Natural remission may be followed by a high likelihood of relapse; thus, preventive interventions may be indicated to forestall future alcohol problems among individuals who cut down temporarily on drinking on their own.