Miracle-dz/UniFAR-FTUs huggingface dataset:
CoReRank: Ranking to Detect Users Involved in Blackmarket-Based Collusive Retweeting Activities

Twitter's popularity has fostered the emergence of various illegal user activities - one such activity is to artificially bolster visibility of tweets by gaining large number of retweets within a short time span. The natural way to gain visibility is time-consuming. Therefore, users who want their tweets to get quick visibility try to explore shortcuts - one such shortcut is to approach the blackmarket services, and gain retweets for their own tweets by retweeting other customers' tweets. Thus the users intrinsically become a part of a collusive ecosystem controlled by these services. In this paper, we propose CoReRank, an unsupervised framework to detect collusive users (who are involved in producing artificial retweets), and suspicious tweets (which are submitted to the blackmarket services) simultaneously. CoReRank leverages the retweeting (or quoting) patterns of users, and measures two scores - the 'credibility' of a user and the 'merit' of a tweet. We propose a set of axioms to derive the interdependency between these two scores, and update them in a recursive manner. The formulation is further extended to handle the cold start problem. CoReRank is guaranteed to converge in a finite number of iterations and has linear time complexity. We also propose a semi-supervised version of CoReRank (called CoReRank+) which leverages a partial ground-truth labeling of users and tweets. Extensive experiments are conducted to show the superiority of CoReRank compared to six baselines on a novel dataset we collected and annotated. CoReRank beats the best unsupervised baseline method by 269% (20%) (relative) average precision and 300% (22.22%) (relative) average recall in detecting collusive (genuine) users. CoReRank+ beats the best supervised baseline method by 33.18% AUC. CoReRank also detects suspicious tweets with 0.85 (0.60) average precision (recall). To our knowledge, CoReRank is the first unsupervised method to detect collusive users and suspicious tweets simultaneously with theoretical guarantees.
Query Rewrite for Null and Low Search Results in eCommerce

In most cases when users encounter with null and low search queries, there are lots of inventory to these queries on eBay, but they can’t be retrieved by regular query expansion. Therefore, retrieving more relevant items by performing more aggressive query rewrites will largely improve the user experience. This paper proposes a query rewrite system that reformulate the original query into multiple alternative queries that enlarge recall without altering the main search intent. In this paper, we present a term dropping algorithm that understands and keeps the important terms in the query, and a term replacement algorithm that learns from user behavior and language model. Experiments on randomly sampled eBay queries shows that the n-best rewrites by these two algorithms effectively recover more relevant items. Besides, the experiments indicate that our algorithm can predict the exact user refined query in its top-5 rewrite candidates for over 50% of the null and low queries.
Compressed Edge Spectrum Sensing: Extensions and practical considerations

Abstract Nowadays, spectrum in industrial radio systems is already overoccupied. Therefore, future Industry 4.0 applications require coexistence management of different wireless communication systems. For identification of active systems, we propose Compressed Edge Spectrum Sensing (CESS). Here, we focus on practical aspects and show that the sampling rate can still be highly reduced.
How is Attention Allocated?: Data-Driven Studies of Popularity and Engagement in Online Videos

The share of videos on Internet traffic has been growing, e.g., people are now spending a billion hours watching YouTube videos every day. Therefore, understanding how videos capture attention on a global scale is also of growing importance for both research and practice. In online platforms, people can interact with videos in different ways -- there are behaviors of active participation (watching, commenting, and sharing) and that of passive consumption (viewing). In this paper, we take a data-driven approach to studying how human attention is allocated in online videos with respect to both active and passive behaviors. We first investigate the active interaction behaviors by proposing a novel metric to represent the aggregate user engagement on YouTube videos. We show this metric is correlated with video quality, stable over lifetime, and predictable before video's upload. Next, we extend the line of work on modelling video view counts by disentangling the effects of two dominant traffic sources -- related videos and YouTube search. Findings from this work can help content producers to create engaging videos and hosting platforms to optimize advertising strategies, recommender systems, and many more applications.
When People Change their Mind: Off-Policy Evaluation in Non-stationary Recommendation Environments

We consider the novel problem of evaluating a recommendation policy offline in environments where the reward signal is non-stationary. Non-stationarity appears in many Information Retrieval (IR) applications such as recommendation and advertising, but its effect on off-policy evaluation has not been studied at all. We are the first to address this issue. First, we analyze standard off-policy estimators in non-stationary environments and show both theoretically and experimentally that their bias grows with time. Then, we propose new off-policy estimators with moving averages and show that their bias is independent of time and can be bounded. Furthermore, we provide a method to trade-off bias and variance in a principled way to get an off-policy estimator that works well in both non-stationary and stationary environments. We experiment on publicly available recommendation datasets and show that our newly proposed moving average estimators accurately capture changes in non-stationary environments, while standard off-policy estimators fail to do so.
Bridging Models for Popularity Prediction on Social Media

Understanding and predicting the popularity of online items is an important open problem in social media analysis. Most of the recent work on popularity prediction is either based on learning a variety of features from full network data or using generative processes to model the event time data. We identify two gaps in the current state of the art prediction models. The first is the unexplored connection and comparison between the two aforementioned approaches. In our work, we bridge gap between feature-driven and generative models by modelling social cascade with a marked Hawkes self-exciting point process. We then learn a predictive layer on top for popularity prediction using a collection of cascade history. Secondly, the existing methods typically focus on a single source of external influence, whereas for many types of online content such as YouTube videos or news articles, attention is driven by multiple heterogeneous sources simultaneously - e.g. microblogs or traditional media coverage. We propose a recurrent neural network based model for asynchronous streams that connects multiple streams of different granularity via joint inference. We further design two new measures, one to explain the viral potential of videos, the other to uncover latent influences including seasonal trends. This work provides accurate and explainable popularity predictions, as well as computational tools for content producers and marketers to allocate resources for promotion campaigns.
Efficient two-step entanglement concentration for arbitrary W states

We present two two-step practical entanglement concentration protocols for concentrating an arbitrary three-particle less-entangled W state into a maximally entangled W state assisted with single photons. The first protocol uses the linear optics and the second protocol adopts the cross-Kerr nonlinearity to perform the protocol. In the first protocol, based on the postselection principle, three parties say Alice, Bob, and Charlie in different distant locations can obtain the maximally entangled W state from the arbitrary less-entangled W state with a certain success probability. In the second protocol, the parties are not required to possess the sophisticated single-photon detectors and the concentrated photon pair can be retained after performing this protocol successfully. Moreover, the second protocol can be repeated to get a higher success probability. Both protocols may be useful in practical quantum-information applications.
Type-Definability, Compact Lie Groups, and O-Minimality

We study type-definable subgroups of small index in definable groups, and the structure on the quotient, in first order structures. We raise some conjectures in the case where the ambient structure is o-minimal. The gist is that in this o-minimal case, any definable group G should have a smallest type-definable subgroup of bounded index, and that the quotient, when equipped with the logic topology, should be a compact Lie group of the "right" dimension. I give positive answers to the conjectures in the special cases when G is 1-dimensional, and when G is definably simple.
Speed-power-accuracy tradeoff in high-speed CMOS ADCs

In this paper the fundamental tradeoff between speed, power, and accuracy for high-speed analog-to-digital converters (ADCs) is reviewed with respect to technology scaling. The never-ending story of complementary metal-oxide-semiconductor (CMOS) technology trends toward smaller transistor dimensions has resulted to date in deep submicron transistors with lower supply voltages. Supply voltage scaling and mismatch scaling trends are discussed and it is shown that in future technologies the power consumption of matching-dominated high-speed ADCs will increase to achieve the same accuracy and speed. Also, a comparison is made between slew-rate dominated circuits and settling dominated circuits. Finally, a comparison with published high-speed ADCs is presented using the figure of merit.
Camera phones changing the definition of picture-worthy

A friend you have not seen for a while or a pet's endearing gaze. Tokyo Tower or a funny-looking stuffed panda. A gorgeous parfait at a new café, a classmate who has just fallen into a puddle, a child opening wide for a spooned-in mouthful, a miniature milk package on an airline tray -the camera phone makes it possible to take and share pictures of the stream of people, places, pets and objects in the flow of everyday life.
The osteopathic treatment of somatic dysfunction causing gait abnormality in 51 horses

Summary Over a 19-year period, 51 horses showing chronic lameness or gait abnormality that was not fully responsive to veterinary treatment at other referral clinics were referred to us for further treatment. All had either failed to have a diagnosis made, or treatment for the diagnosed conditions had shown only partial response. After further examination, we concluded that they showed abnormal function of the neck or back, but there was no obvious pathological cause. A diagnosis of ‘somatic dysfunction’ was made, characterised by altered muscle tone, tenderness or subtle changes in gait, similar to the condition recognised in human medicine. These cases subsequently underwent osteopathic treatment under sedation. Forty-six cases (90.2%) responded to treatment in the short term (6 months after treatment). Seventeen (53.1%) were working at the same level or better than previously at least a year after treatment. Ten (31.2%) worked at a reduced level for between 1.5 and 10 years. Nineteen cases were lost to long-term follow-up. The findings of this study suggest that neck and back problems may be overlooked when investigating chronic lameness. When no pathology can be pinpointed as a cause of lameness, a diagnosis of somatic dysfunction as a primary problem should be considered. The presence of somatic dysfunction as a secondary complicating factor should not be overlooked. Stiffness and/or low grade pain in the spine of horses can result in persistent abnormal posture, gait, or behaviour, similar to ‘somatic dysfunction’ seen in the human patient. The cause is neuromuscular in origin, rather than resulting from tissue pathology. The diagnosis made clinically can be confirmed with thermography. This study confirms that osteopathic manipulation of the spine of horses can be a valuable treatment for cases of lameness that do not respond fully to standard veterinary treatments.
Flex and inflexibility: The impact of real-time collaborative technologies in highly customisable video-linked teaching spaces

This paper introduces a major investment in „state of the art‟ video-linked teaching (VLT) facilities aimed at supporting collaborative teaching and learning across and beyond the campuses of Massey University. It reports how the design and development of the VLT spaces have resulted in unexpected challenges that are occasionally counter to the flexible teaching philosophy that has informed the design of the rooms. Some initial feedback is shared from the early experiences of staff and students, indicating several lessons for other institutions wishing to exploit the potential of VLT and related new „hybrid‟ learning spaces. Overall the poster offers a glimpse into an engaging, tactile learning environment which goes beyond traditional video conferencing and highlights some of the pedagogical implications that have arisen through the project pilot phase.
Facteurs prédictifs d'évolution vers la cirrhose à un stade précoce de la maladie alcoolique du foie.

Objectif. - Mettre en evidence au stade precoce de la maladie alcoolique du foie les facteurs susceptibles de favoriser l'evolution vers la cirrhose. Malades. - Quatre-vingt trois sujets buveurs excessifs (60 hommes et 23 femmes) ayant eu 2 ponction-biopsies hepatiques, dont la premiere montrait soit un foie histologiquement normal, soit une steatose pure, ont ete inclus. Resultats. -Lorsque les 6 variables suivantes : sexe, âge, delai entre la premiere et la derniere ponction-biopsie hepatique, duree de la consommation d'alcool avant la premiere ponction-biopsie hepatique, consommation quotidienne d'alcool en g/j dans les 5 annees ayant precede la premiere ponction-biopsie hepatique et intensite de la steatose sur la premiere ponction-biopsie hepatique, sont considerees ensemble dans une regression logistique, le delai entre la premiere et la derniere ponction-biopsie hepatique (P < 0,0001), le sexe feminin (P < 0,004) et l'intensite de la steatose su r la premiere ponction-biopsie hepatique (P < 0,06) successivement ameliorent de facon significative la prediction du risque de survenue de la cirrhose. Le risque relatif d 'evoluer vers une cirrhose pour une femme etait 19,1 fois superieur a celui d'un homme (intervalle de confiance a 95 % compris entre 1,85 et 197). Le risque relatif d'evoluer vers la cirrhose pour un malade ayant une steatose dont l'intensite etait superieure ou egale a 5/10 cv sur la premiere ponction-biopsie hepatique etait 7.4 superieur a celui d'un malade ayant une steatose inferieure a 5/10 cv (intervalle de confiance a 95 % compris entre I et 92), Conclusion. - A niveau constant de delai entre 2 biopsies hepatiques, le sexe feminin et l'intensite de la steatose constitutent 2 facteurs de risque independants d'evolution vers la cirrhose chez les sujets buveurs excessifs d'alcool.
Intégration des facteurs humains dans l'expérimentation des interfaces cerveau machine

La recherche sur les interfaces cerveau machine (Brain Machines Interfaces : BMIs), en plein essor, reste encore aujourd'hui au niveau experimental et ne permet pas une utilisation efficace des applications BMIs dans la vie quotidienne des personnes handicapees. Pour que le transfert des BMIs, des laboratoires de recherche vers les services cliniques et a plus long terme chez le patient, puisse se faire dans les meilleures conditions, il est non seulement indispensable d'integrer les facteurs humains lors des experimentations mais aussi, beaucoup plus en amont, des la phase d'amenagement des locaux. Notre article presente une etude des differents criteres a prendre en compte lors de la creation d'une salle d'experimentation BMI et lors de la definition des protocoles experimentaux. Le travail presente met en evidence la complexite et la necessite d'une approche globale et pluridisciplinaire afin de placer les facteurs humains au centre de la reflexion.
Effects of Chemotherapy and Aidi Injection on Nude Mice Breast Carcinoma Implanted of Her-2/neu Over-expression

Objective:To observe the effects of chemotherapy and Aidi Injection on nude mice implanted breast carcinoma in Her-2/neu over-expression.Methods:The nude mice models were established by being implanted SKBr-3 cells into the right axillary subcutaneous tissue.30 model mice were randomized into 3 groups with 10 mice in each group:A group(the control group),B1 group(the pirarubicin plus cyclophosphamide group) and B2 group(the pirarubicin,cyclophosphamide and Aidi Injection group). The weight of nude mice,the weight of transplatnted tumor and the rate of tumor inhibitory were observed.Also,the structures of the tumor were observed with microscope and the Her-2/neu expression levels were examined.Results:The weights of nude mice in 3 groups were increased after administration.There were obvious differences in these groups.The weights of B1 group were lower than that of A group.There was no significant difference between B2 group and A group.The weight of tumor in 3 groups were A group(0.3617± 0.0482)g,B1 group(0.2728± 0.0393)g,B2 group(0.2461± 0.0404)g separately.Meanwhile,the rates of tumor inhibitory were 24.57% in B1 group and 31.96% in B2 group respectively.The tumor weight in A group was heavier than that in B1 group and B2 group.However,there was no significant difference between B1 group and B2 group.The Her-2/neu expression levels in A group were lower than those in B2 group.There was no significant difference between B1 group and A group.Conclusion:Pirarubicin,cyclophosphamide combined with Aidi Injection is effective in treating nude mice implanted breast carcinoma in Her-2/neu over-expression.It dose not inhibit the growth of transplantation tumor,but also decrease the expression of Her-2/neu.But it dose not affect these weights of nude mice.
Fondements et enjeux d'une société inclusive, une toile de fond pour penser une école pour tous / Charles Gardou

Fondements et enjeux d'une societe inclusive, une toile de fond pour penser une ecole pour tous / Charles Gardou, in "Education inclusive, la question de l'evaluation : des representations aux pratiques evaluatives", colloque international organise par le laboratoire Education, Formation, Travail, Savoirs (EFTS) de l'Universite Toulouse Jean Jaures-campus Mirail et l'Ecole Nationale de Formation Agronomique (ENFA) de Toulouse-Auzeville. Universite Toulouse Jean Jaures-campus Mirail, 2-3 fevrier 2015. La question de l’ecole inclusive merite d’etre situee dans le contexte large ou elle prend place, qui lui donne a la fois sa signification et sa portee : celui du mouvement inclusif. Quels sont donc les fondements et les enjeux de la societe inclusive a construire, dont l’ecole est la pierre angulaire ? Quelle est la toile de fond pour penser une ecole pour tous ? Pour Charles Gardou, la societe inclusive consisterait en un edifice reposant sur 5 piliers : le droit d'exister et pas seulement de vivre, la reunification d'univers sociaux actuellement hierarchises pour forger un repertoire commun, l'equite prenant en compte la singularite en refusant toute categorisation, la remise en cause de l'emprise de modeles normatifs excluants, le droit sans condition au partage d'un patrimoine humain et social commun.
Mobile technology and health apps: Patient and provider experiences in cardiac rehabilitation

ii Acknowledgements iv List of Tables viii List of Figures x List of Appendices xi Chapter 1: Introduction 1 1.1 Study Problem 1 1.2 Research Objectives 2 1.3 Relevance of the Research 3 Chapter 2: Review of the Literature 4 2.1 Chronic Disease 4 2.2 Cardiac Illness / Disease 5 2.3 Patient Variables that Impact Chronic Disease and Information Seeking 9 2.4 Decision Making 10 2.5 Self-Management in Chronic Care 12 2.6 Patient Trust in Information Sources 15 2.7 Patient-Provider Relationship 17 2.8 Web 2.0 19 2.9 Health and Wellness Mobile Apps 22 2.10 Conceptual Framework 31 Chapter 3: Design and Methods 40 3.1 Research Design 40 3.2 Description of the Patient Survey 41 3.3 Description of the Patient Interview Guide / Provider Focus Group Guide 42 3.4 Definitions 43 3.5 Sampling and Data Collection 43 3.6 Eligibility Criteria and Consent to Participate 48 3.7 Data Analysis 49 Chapter 4: Results 55 4.1 Overview of Presentation of Results 55 4.2 Demographic Profile of Participants 57 4.3 Description of the Cardiac Rehabilitation Patient Population with Respect to use of Mobile Technology and Health Apps 66 4.3.1 Mobile Device Use 66 4.3.2 Health App Use 75 4.4 Health Apps & Self-Management 82 4.4.1 Overview of Health Apps and Self-Management 82 4.4.2 Motivations to Use Health Apps 84 4.4.3 Barriers to Using Health Apps 87 4.4.4 Health App Trust 93 4.4.5 Paper Versus Apps for Health Tracking 95 4.5 Health Apps and the Patient-Provider Relationship 96
The debate over open access is missing the point

Key points It is more important to a funder to know that the research advances knowledge and has an impact on the field than that it is published in a prestigious journal (or not). Improving journal quality assurance is more important than improving the business model. Focusing on open access misses the point that journals need to improve their quality standards.
The Developing Of e-Consultations For Effectiveness of Mentoring Academy

e-Consultations is one of the technology trends that could not be separated from the internet, e-Consultations are an alternative media that can be used to the consultation, online consultation which would further be easier because not limited by time and place, but all of these activities can konultasi properly recorded and can be reused at any time. Seeing the advantages of e-Consultations so the authors try to apply it in the process of academic guidance contained withing the campus, as an important tool, sometimes many academic coaching problems, such as meeting duration and schedule of meetings between students and lecturers, with the implementation of e-Consultations expected to assist students and faculty in academic mentoring activities.
Tendencias del proceso docente-educativo de las ciencias básicas en las carreras de ingeniería en Ecuador

Para comprender un modelo formativo basado en competencias se requiere conocer los antecedentes que han intervenido en los procesos de cambio que caracterizan al proceso docente educativo de la educacion superior en los ultimos anos. Por esto, el presente articulo contextualiza los principales hechos que han contribuido a que el proceso docente-educativo de las Ciencias Basicas haya ido evolucionando hasta su concepcion actual. PALABRAS CLAVE: competencia; aprender a aprender; proceso docente-educativo; ciencias basicas. TENDENCIES OF THE EDUCATIONAL PROCESS OF Y BASIC SCIENCES IN ENGINEERING CAREERS IN ECUADOR ABSTRACT To understand a competency-based training model it is required to know the background that have intervened in the processes of change that characterize the educational process of higher education in recent years. Therefore, this article contextualizes the major events which have contributed to the educational process of Basic Sciences and its evolution to its current form. KEYWORDS: competence; learning to learn; teaching-learning process; basic sciences.