Miracle-dz/UniFAR-FTUs huggingface dataset:
De la modélisation sémantique des événements vers l'enrichissement et la recommandation

RESUME. De nombreux sites web ont recemment connu une croissance rapide fournissant des informations a propos d’evenements passes ou a venir, et pour certains d’entre eux, accompagnes de photos et de videos capturees pendant ces evenements. L’information disponible est, cependant, souvent incomplete, erronee et enfermee dans une multitude de sites web. Notre objectif est de fouiller en temps reel la connexion entre ces bases de donnees distribuees en utilisant les technologies du web semantique. Cela permet d’assurer une meilleure completude des donnees et de construire des vues riches sur les evenements. En outre, des milliers d’evenements sont crees chaque jour, ce qui necessite un systeme de recommandation performant afin d’optimiser l’experience utilisateur. Nous proposons donc une nouvelle approche de recommandation en exploitant la description semantique des evenements ainsi que la dimension sociale. Finalement, nous presentons une application web dans le but de repondre aux besoins d’utilisateur : revivre et decouvrir des evenements a partir de medias, et guider la prise de decision pour participer a des evenements futurs.
Learning the Structure of Deep Architectures Using L1 Regularization

We present a method that formulates the selection of the structure of a deep architecture as a penalized, discriminative learning problem. Up to now, the structure of deep architectures has been fixed by hand, and only the weights are learned using discriminative learning. Our work is a first attempt towards a more formal method of deep structure selection. We consider architectures consisting only of fully-connected layers, and our approach relies on diagonal matrices inserted between subsequent layers. By including an L1 norm of the diagonal entries of said matrices as a regularization penalty, we force the diagonals to be sparse, accordingly selecting the effective number of rows (respectively, columns) of the corresponding layer's (next layer's) weights matrix. We carry out experiments on a standard dataset and show that our method succeeds in selecting the structure of deep architectures of multiple layers. One variant of our architecture results in a feature vector of size as little as $36$, while retaining very high image classification performance.
Role of PTHrP(1‐34) Pulse Frequency Versus Pulse Duration to Enhance Mesenchymal Stromal Cell Chondrogenesis

Generation of phenotypically stable, articular chondrocytes from mesenchymal stromal cells (MSCs) is still an unaccomplished task, with formation of abundant, hyaline extracellular matrix, and avoidance of hypertrophy being prime challenges. We recently demonstrated that parathyroid hormone‐related protein (PTHrP) is a promising factor to direct chondrogenesis of MSCs towards an articular phenotype, since intermittent PTHrP application stimulated cartilage matrix production and reduced undesired hypertrophy. We here investigated the role of frequency, pulse duration, total exposure time, and underlying mechanisms in order to unlock the full potential of PTHrP actions. Human MSC subjected to in vitro chondrogenesis for six weeks were exposed to 2.5 nM PTHrP(1‐34) pulses from days 7 to 42. Application frequency was increased from three times weekly (3 × 6 h/week) to daily maintaining either the duration of individual pulses (6 h/day) or total exposure time (18 h/week; 2.6 h/day). Daily PTHrP treatment significantly increased extracellular matrix deposition regardless of pulse duration and suppressed alkaline‐phosphatase activity by 87%. High total exposure time significantly reduced cell proliferation at day 14. Pulse duration was critically important to significantly reduce IHH expression, but irrelevant for PTHrP‐induced suppression of the hypertrophic markers MEF2C and IBSP. COL10A1, RUNX2, and MMP13 expression remained unaltered. Decreased IGFBP‐2, ‐3, and ‐6 expression suggested modulated IGF‐I availability in PTHrP groups, while drop of SOX9 protein levels during the PTHrP‐pulse may delay chondroblast formation and hypertrophy. Overall, the significantly optimized timing of PTHrP‐pulses demonstrated a vast potential to enhance chondrogenesis of MSC and suppress hypertrophy possibly via superior balancing of IGF‐ and SOX9‐related mechanisms. J. Cell. Physiol. 231: 2673–2681, 2016. © 2016 Wiley Periodicals, Inc.
Inactivation of Vacuolating Virus (SV40) by Formaldehyde

Summary Inactivation of SV40 with formaldehyde followed a biphasic curve with a levelling off after about 40 hours at 37°C leaving a residual fraction of virus which was resistant to further inactivation for the remainder of the 14-day observation period. Viable SV40 was detected in some lots of formalinized poliomyelitis and adenovirus vaccines.
Responses to ethical challenges in conducting research with Australian adolescents

Current research ethical guidelines are unclear about the extent to which adolescents can be considered competent to provide informed consent to participate in psychological research. Researchers and human research ethics committees (HRECs) need clearer guidance on when various types of parental consent are required. Some important psychological research on critical public health issues affecting young people is delayed, its methodology compromised, or even does not proceed, because the vagueness in current guidelines lead HRECs to take unduly conservative decisions about the level of risk from research participation, and the competency of mature minors to consent. This paper includes recommendations for researchers and the Australian Psychological Society that could enhance the ethical conduct of research with adolescents.
Image matching using adapted image models and its application to content-based image retrieval

The image matching is an important and necessary step in a series of processes aimed at overall content-based image retrieval (CBIR). This paper presents a new image matching approach for CBIR. It first defines the concept of image-class and the process of image matching in CBIR is formulated into a set of hypothesis tests. The retrieval is based on modeling positive and negative hypotheses and testing a query image against these two hypotheses. In order to model the two hypotheses, the paper proposes to calculate first a universal image model (UIM). The derived UIM is then used as a reference for the calculation of adapted models for each image in the database. The use of Bayesian adaptation to derive well-behaved image models from an UIM in image retrieval is a main contribution of the paper. In addition, the paper discusses an acceleration technique based on ranking the closest mixture Gaussian components of the background model and using their corresponding components in the positive classes. The experimental results on publicly available datasets show that the proposed approach improves the robust and evident performance.
Gluconeogenesis and hepatic glycogenolysis during exercise at the lactate threshold

We studied the effects of training, exercise intensity, and [lactate] on gluconeogenesis (GNG) and hepatic glycogenolysis (GLY) in fasted men exercising at the lactate threshold (LT). Twelve men (6 untrained, 6 trained) completed 1 h of constant load exercise at power outputs (PO) corresponding to their LT. Trained men completed two additional 1‐h exercise sessions at 10% below the LT (LT‐10%), one of which included a lactate clamp (LT‐ 10%+LC). Relative exercise intensity was matched between the untrained at LT and the trained at LT‐10%, and [lactate] was matched in the LT and LT‐10%+LC trials. Flux rates were determined by primed continuous infusion of [6,6‐2H2]glucose and [3‐13C]lactate tracers. Exercise at LT corresponded to 67.6 ± 1.3 and 74.8 ± 1.7 %VO2peak in the untrained and trained men, respectively (P < 0.05). GNG was decreased in the trained men exercising at LT and LT‐10% compared to the untrained men, but increasing [lactate] in the LT‐10%+LC trial increased GNG (4.4 ± 0.9 mg·kg−1·min−1) compared to that in LT‐10% (1.7 ± 0.4 mg·kg− 1·min−1, P < 0.05). Hepatic GLY was higher in the trained than untrained men. We conclude that GNG contributes ~25–40 % of glucose output during exercise in fasted men. While trained men can achieve a higher PO at the LT, this increase in exercise intensity is accompanied by a decrease in GNG, which can be recovered by raising [lactate]. This research was supported by a gift from CytoSport.
Organisation Design and Structure with regard to the Facilitation of Tacit Knowledge Management

We conducted empirical studies in three IT organisations of varying size, type and structure that found that organisational structure can have a direct bearing on the quality and volume of tacit knowledge exchange. Our research indicates there is likely to be a strong positive correlation with organisations whose structure and work design promotes face to face contact and have employees sharing close physical proximity with one another, being those more successful at ensuring their tacit knowledge is well shared.
A 6-bit, 0.2 V to 0.9 V Highly Digital Flash ADC With Comparator Redundancy

A 6-bit highly digital flash ADC is implemented in a 0.18 mum CMOS process. The ADC operates in the subthreshold regime down to 200 mV and employs comparator redundancy and reconfigurability to improve linearity. The low-voltage sampling switch employs voltage boosting, stacking and feedback to reduce leakage. Common-mode rejection is implemented digitally via an IIR filter. The minimum FOM of the ADC is 125 fJ/conversion-step at a 0.4 V supply, where it achieves an ENOB of 5.05 at 400 kS/s. The clocked comparators' switching thresholds are adjusted through a combination of device sizing and stacking. A quadratic relationship between the amount of device stacking and the strength of an input network in the subthreshold regime is derived, demonstrating an advantage of stacking over device width scaling to adjust comparator thresholds.
Multiple Watermark Scheme based on DWT-DCT Quantization for Medical Images

In this paper, a multiple watermark scheme for medical images is proposed. The image feature information and private tag information are embedded into the original image as watermarks. Firstly, the medical image is divided into the region of interest (ROI) and region of non-interest (RONI). Secondly, a 2-level discrete wavelet transform (DWT) is applied in the ROI. The watermark is embedded using the low-frequency sub-band (LL2) of the DWT through quantizing the low-frequency coeﬃcients. Finally, the RONI is divided into non-overlapping 8 × 8 blocks. A discrete cosine transform (DCT) is used for each block, and the DCT coeﬃcients of each block are sorted using zigzag transform. Seven intermediate frequency coeﬃcients are selected to embed watermark by quantizing them. Then the feature information is embedded in the ROI and is semi-fragile, whereas the tag information is embedded in the RONI. The experimental results showed that our scheme has the advantages of lower error rate, strong robustness and high capacity for the watermarking algorithm applied in the RONI. Performance evaluation is made by calculating PSNR and SSIM to verify the accuracy of the algorithm
Natural terrain classification using three‐dimensional ladar data for ground robot mobility

In recent years, much progress has been made in outdoor autonomous navigation. However, safe navigation is still a daunting challenge in terrain containing vegetation. In this paper, we focus on the segmentation of ladar data into three classes using local threedimensional point cloud statistics. The classes are: “scatter” to represent porous volumes such as grass and tree canopy; “linear” to capture thin objects like wires or tree branches, and finally “surface” to capture solid objects like ground surface, rocks, or large trunks. We present the details of the proposed method, and the modifications we made to implement it on‐board an autonomous ground vehicle for real‐time data processing. Finally,we present results produced from different stationary laser sensors and from field tests using an unmanned ground vehicle. © 2006 Wiley Periodicals, Inc.
Narcissism and Creativity: Are They Related?

The aim of this study was to explore the relationship between narcissism and creativity. 71 subjects were asked to identify themselves as being highly creative or not highly creative. Subjects were then given the Barron Symbolic Equivalents Test to measure level of creativity and the Narcissistic Personality Inventory to measure their level of narcissism. Four groups were formed using the subjects' self-report and their Barron scores. Each group was then compared on the Narcissistic inventory scores. A significant difference in the narcissism scores was found between the high-creativity/high-self-report group and all other groups. The greatest difference was found between the high-creativity/high-self-report group and the low-creativity/low-self-report group. Upon further analysis a significant correlation of . 25 was found between scores on Barron's test and the narcissism measure, which suggests that there is a small but positive and significant relationship between the personality variables of creativity and narcissism.
Women's Community Service, 1940–1960: Insights from a Cohort of Gifted American Women

Americans who came of age during and immediately following World War II have recently become a central feature for more broadly understanding volunteerism, as well as civic participation, in the United States. Using data from the Stanford-Terman Study we examine women's community service participation and leadership over the period 1940–1960. The women studied moved in and out of community service over time, with patterns of participation showing a great deal of variability. Both the likelihood of involvement in community service and community service leadership peaked during midlife. Age-related patterns were largely accounted for by changes in correlated resources. Beyond age patterns, the marks of history are apparent in an increasing investment in volunteerism between 1940 and 1960 for this generation of American women. The findings of this study both support and extend a resource perspective on volunteering.
Speeding Up Music Similarity

This paper describes (1) the submission to the ISMIR’04 genre classification contest and (2) the submission to the MIREX’05 (Music Information Retrieval eXchange) audio-based genre classification and artist identification tasks. The main difference between the submissions is the reduction of computation time in the order of magnitudes. This paper concludes with a discussion of the relationship between genre classification and artist identification, the relationship between similarity and classification, and references to related MIREX’05 submissions. 1 IMPLEMENTATION OVERVIEW Features are extracted from 22kHz mono wav input (2 minutes from the center of each piece are used for further analysis). For the 2004 submission these features are cluster models of MFCC spectra. The 2005 submission additionally uses fluctuation patterns and two descriptors derived from them: Gravity and Focus. For each piece in the test set the distance to all pieces in the training set is computed. A nearest neighbor classifier is used. There is no training other than storing the features of the training data. Each piece in the test set is assigned the genre label (or artist’s name) of the piece closest to it. 1.1 M2K Specific The functions are implemented in Matlab 7 and submitted with an M2K wrapper. The 2004 submission requires the Netlab Toolbox and the signal processing toolbox. The 2005 submission does not require any additional toolboxes. The same functions are used for the genre classification and artist identification tasks.
A systematic approach to quality assessment of expert testimony in cases of alleged child sexual abuse

Abstract The evaluation of suspected child sexual abuse is one of the most complicated forensic assessments. This paper describes a method of translating guidelines concerning written expert testimony on child sexual abuse into a quality assessment protocol - the Structured Quality assessment of eXpert testimony, SQX-12 - thereby creating an evaluative tool to assess written expert testimony regarding child sexual abuse. The proposed tool consists of 12 items referring to different quality aspects of written expert testimony. Interrater reliability and some preliminary metric properties were found to be promising. It is concluded that the SQX-12 may provide a small, first step towards the conceptualisation of quality in forensic reports regarding child sexual abuse.
Withdrawal from the Local Public Place: Understanding the Process of Spatial Alienation

Abstract Several studies have shown that local residents increasingly withdraw from local public places either into the privacy of their homes or into remote recreation areas. The villages thus mutate more and more into dormitory towns. Often this tendency is seen as a consequence of spatial alienation. To understand this process we investigated two Swiss rural communities using methods of qualitative social science research. We found that increasing individualism was a stimulating condition for avoiding local public places. The main cause for this proved to be the rigidity of the social structures which inhibit the residents from expressing and regulating their individual identity in public places. In order to counteract this process, to satisfy residents' needs and avoid compensatory effects such as increased mobility, more places of informal interaction are needed in rural communities.
TNF‐α‐ and TRAIL‐resistant glioma cells undergo autophagy‐dependent cell death induced by activated microglia

The role of microglia, the brain resident macrophages, in glioma biology is still ill‐defined. Despite their cytotoxic potential, these cells that significantly infiltrate the tumor mass seem to support tumor growth rather than tumor eradication. A proper activation of microglia anti‐tumor activities within the tumor may provide a valuable additional arm of defense to immunotherapies against brain tumors. We herewith report a detailed characterization of (lipopolysaccharide and interferon‐gamma)‐induced anti‐tumor activities of mouse primary microglia towards two TNF‐alpha and TRAIL resistant glioma cell lines, in cell monolayer or spheroid cultures and in collagen‐embedded tumor explants. Irrespective of the mouse strain, stimulated microglia secreted proteic factors that decreased proliferation and migration of these glioma cells and efficiently killed them. Death occurred specifically in glioma cells as demonstrated by the lack of toxicity of microglia supernatant towards primary cultures of astrocytes or neurons. Cell death was characterized by the early accumulation of acidic vesicles, phosphatidylserine exposure, appearance of double‐membrane cytoplasmic vesicles, extensive zeiosis and a very late loss of DNA in cells that had lost membrane integrity. Inhibition of autophagosome formation efficiently protected glioma cells from death whereas caspase inhibition could only prevent DNA loss but not cytotoxicity. Death however, resulted from a blockade by microglia supernatant of the basal autophagic flux present in the glioma cells. These observations demonstrate that glioma cells resistant to apoptotic death ligands could be successfully and specifically killed through autophagy‐dependent death induced by appropriately activated microglia. © 2008 Wiley‐Liss, Inc.
Implementation of Transparent Network Subsystem for PC Manageability

By adding a subsystem that provides continuous network service to a host system such as a PC (Personal Computer), even while the host system is sleeping, it is possible to achieve efficient use of the system and energy reduction. Remote management is a typical example. Recently, to maintain network service anytime and anywhere, WWAN (Wireless Wide Area Network) technology such as 3G (3rd generation mobile telecommunications) has been employed. The design of the subsystem should be independent of the network device in terms of development cost because once modifications are made, they are dependent on a network device, this would lead to extra work being required to use the new network devices and retain the modification. Furthermore, modification to the logic or firmware of a wireless network device may make re-certification necessary owing to rules and regulations for radio devices. Therefore, realization of a method that does not require any modification to wireless network devices, network drivers, and connection software is considered ideal, however, it has not been achieved thus far. In this paper, we propose a unique architecture for a subsystem that overcomes this design issue by introducing two elements to achieve host unaware network service: pseudoresponse and bridge functionality for communicating through the subsystem. In general, a highly independent design contributes to processing overhead and tends to degrade performance. Hence, we prototype the subsystem on an ARM7 board and evaluate it using actual 3G network and cloud services. The results show that the proposed technique works transparently, even when the host system uses the network, and the required CPU (Central Processing Unit) frequency is more than 70 MHz. Furthermore, it is confirmed that power reduction of around 60% can be achieved while downloading.
Compassion in Contemporary Social Policy: Applications of Virtue Theory

Abstract Current academic debate in the social sciences and humanities is revisiting the role of virtue in civic life. This debate is relevant to social policy. We argue that virtue is already an implicit component of policy debates, but that the virtue of compassion has not received sufficient emphasis. To support our argument we review classical and contemporary arguments regarding virtue and its linkage to the ‘good society’; articulate the necessity of compassion and its application to specific policies areas (e.g., domestic violence, welfare, emergency care); and assess how compassion intersects with other virtues in the policy environment. Policy implications are identified including: recognition of the realities of suffering, the need for sufficient administrative infrastructure and trained professionals and an often long-term commitment to work in community settings. Weighing the risks, and the overall challenges of virtuous action, our analysis suggests compassion remains a compelling, yet under-utilised, basis for constructing and implementing policies.
High precision and stable structures for particle detectors

We are studying structures in CFRP with bonded piezoelectric sensors and actuators, able to monitor and compensate the vibrations affecting the performance of these systems. In this paper a detailed description of the simulation model is presented and the results compared with the experimental measurements. The transient response of a plate structure under vibrations with and without feedback control are shown.