Miracle-dz/UniFAR-FTUs huggingface dataset:
An Efficient Feature Subset Selection Algorithm for Classification of Multidimensional Dataset

Multidimensional medical data classification has recently received increased attention by researchers working on machine learning and data mining. In multidimensional dataset (MDD) each instance is associated with multiple class values. Due to its complex nature, feature selection and classifier built from the MDD are typically more expensive or time-consuming. Therefore, we need a robust feature selection technique for selecting the optimum single subset of the features of the MDD for further analysis or to design a classifier. In this paper, an efficient feature selection algorithm is proposed for the classification of MDD. The proposed multidimensional feature subset selection (MFSS) algorithm yields a unique feature subset for further analysis or to build a classifier and there is a computational advantage on MDD compared with the existing feature selection algorithms. The proposed work is applied to benchmark multidimensional datasets. The number of features was reduced to 3% minimum and 30% maximum by using the proposed MFSS. In conclusion, the study results show that MFSS is an efficient feature selection algorithm without affecting the classification accuracy even for the reduced number of features. Also the proposed MFSS algorithm is suitable for both problem transformation and algorithm adaptation and it has great potentials in those applications generating multidimensional datasets.
Ju l 2 00 6 Contact effects in polymer field-effect transistors

Contact resistances often contribute significantly to the overall device resistance in organic field-effect transistors (OFETs). Understanding charge injection at the metal-organic interface is critical to optimizing OFET device performance. We have performed a series of experiments using bottom-contact poly(3-hexylthiophene) (P3HT) OFETs in the shallow channel limit to examine the injection process. When contacts are ohmic we find that contact resistivity is inversely proportional to carrier mobility, consistent with diffusion-limited injection. However, data from devices with other electrode materials indicate that this simple picture is inadequate to describe contacts with significant barriers. A generalized transmission line method allows the analysis of nonohmic contacts, and we find reasonable agreement with a model for injection that accounts for the hopping nature of conduction in the polymer. Variation of the (unintentional) dopant concentration in the P3HT can significantly alter the injection process via changes in metal-organic band alignment. At very low doping levels, transport suggests the formation of a barrier at the Au/P3HT interface, while Pt/P3HT contacts remain ohmic with comparatively low resistance. We recently observed that self-assembled monolayers on the metal source/drain electrodes can significantly decrease contact resistance and maintain ohmic conduction under conditions that would result in nonohmic, high resistance contacts to untreated electrodes. Finally, we discuss measurements on extremely short channel devices, in the initial steps toward examining transport through individual polymer chains.
Laparoscopy versus open surgery for advanced and resectable gastric cancer: a meta-analysis.

BACKGROUND There are few studies in the literature comparing laparoscopic versus open Gastrectomy, predominantly for advanced gastric cancer (AGC). Most of the available studies and meta-analysis compare both approaches in the early gastric cancer. The meta-analysis, here presented, compares the clinical outcomes between these two procedures for AGC. OBJECTIVES To evaluate the current status of both partial and total laparoscopic gastrectomy (LG), with regard to its short and long-term outcomes by comparing it to conventional open gastrectomy (OG) for AGC. DATA SOURCES AND REVIEW METHODS original articles published in English language from January 1991 to October 2009 were searched in the Medline, Embase, Current Contents, Science Citation Index databases and Cochrane Controlled Trials Register. All articles comparing LG and OG for AGC were included, and those comparing outcomes only for early gastric cancer (EGC) were excluded. Clinical appraisal and data extraction were conducted independently by 3 reviewers. Statistical analysis was carried out following the DerSimonian-Laird random effects model. RESULTS out of 2,344 studies, 7 studies were selected. One prospective randomized controlled trial, one comparative prospective study and five comparative retrospective studies were analyzed. These studies include a total of 452 patients with gastric cancer, 174 patients in the LG and 278 in the OG. The analyzed result variables were operative time, operative blood loss, hospital postoperative stay, number of dissected lymph nodes and cancer-related mortality risk. Compared to OG, LG was a longer procedure: weighted mean difference (WMD) 44 minutes; 95% confidence interval (CI) 20 to 69; I-squared = 91.6%, but was associated with a lower blood loss (WMD -122 cc; 95% CI -208 to -37; I-squared = 90.8%); this was more significant for hospital operative stay (WMD -6.2 days; 95% CI -9.4 to -2.8; I-squared = 67.8%). Moreover there were no significant differences between the two groups concerning the number of dissected lymph nodes (WMD -1.57; 95% CI -3.41 to 0.26; I-squared = 8.3) and no significant differences for cancer-related mortality risk (adjusted for 60 months of follow-up) although there was a tendency toward a protective effect for LG (Odds Ratio 0.53; 95% CI 0.23 to 1.22; I-squared 41%). CONCLUSION Laparoscopic total and partial gastrectomy for AGC is associated with a longer operative time but lower blood loss and shorter postoperative hospital stay. Moreover there were similar outcomes between both approaches in terms of number of dissected lymph nodes and long-term follow-up (survival).
What can prediction bring to Image-Based Visual Servoing ?

The purpose of this paper is to show what image prediction can bring to Image-Based Visual Servoing. The visual feature prediction is obtained thanks to the interaction matrix. Based on a Model Predictive Control strategy, the visual servoing task is formulated into an optimization problem. The error between the reference features and the predicted features is to be minimized over a receding prediction horizon. Numerous simulations highlight the interest of prediction, especially for difficult configurations such as large motion and rotation.
SADP: Site Architecture Driven by Personalization

- This paper presents a process to build websites based on personalization issues, aiming the improvement of services for the users. In this process not only the history of navigation and preferences detected or expressed by the user are considered for personalization but also the types of devices and networks used for communication, and even the content presented. The information related to the user interactions is stored and used for construction of user profiles. Such information is obtained through implicit monitoring of the site and is treated using Fuzzy Ontology. The process stands out for directing the architecture of the site to provide personalized services.
Unlocking radio broadcasts: user needs in sound retrieval

This poster reports the preliminary results of a user study uncovering the information seeking behaviour of humanities scholars dedicated to radio research. The study is part of an interdisciplinary research project on radio culture and auditory resources. The purpose of the study is to inform the design of information architecture and interaction design of a research infrastructure that will enable future radio and audio based research. Results from a questionnaire survey on humanities scholars' research interest and information needs, preferred access points, and indexing levels are reported. Finally, a flexible metadata schema is suggested, that includes both general metadata and highly media and research project specific metadata.
Long-acting paliperidone palmitate – interim results of an observational study of its effect on hospitalization

Paliperidone palmitate (PP) is a recently introduced long-acting atypical, or second-generation, antipsychotic. Published data on PP are currently limited to controlled trials and case reports. In this observational study, we followed up 200 consecutive patients prescribed PP in normal practice. After 1 year, 65% of patients were still receiving PP. The number of admissions to hospital in the year following PP initiation was 0.49/patient compared with 0.69/patient/year, 3 years before initiation (P=0.0001). The mean number of bed days fell from 38.78 to 23.09/patient/year over the corresponding period (P=0.0001). The median number of bed days 3 years before PP initiation was 21.50/year and in the year following PP initiation, it was 0. Outcomes were numerically but not statistically better in those continuing PP than in those who ceased PP within a year of initiation. PP was effective and well-tolerated and, given its positive effect on hospital bed days, broadly cost-effective.
Is Schizoid Personality a Forerunner of Homicidal or Suicidal Behavior?

The authors believe that a relationship exists between schizoid personality disorder and violent acts. The following case study is presented to contemplate such a possible relationship. There is a paucity of research on this topic. The authors suggest that further research closely examine the relationship between violent behavior and those character traits associated with schizoid personality disorder. If such a relationship is found, these character traits could be integrated with other risk factors known to predict violence.
A modified feature point descriptor based on binary robust independent elementary features

We present a modified feature point descriptor (M-BRIEF) based on Binary Robust Independent Elementary Features (BRIEF). BRIEF is much faster both to build and to match than SIFT and SURF, and it yields a better recognition as well. However, the matching results are not robust when the viewpoint changes obviously. In our paper, M-BRIEF automatically adjusts the coordinates of the image patch according to the main orientation of the feature point, and presents a new method for testing definition by introducing the adaptive threshold. The results show that the method is much robust in case of the obvious changes of the viewpoint.
Deadlock-free routing algorithms for 3-dimension Networks-on-Chip with reduced vertical channel density topologies

3D ICs have emerged as promising solution for scalability, power consumption and performance demands of next generation Systems-on-Chip (SoCs). Along with the advantages, it also imposes lots of challenges in terms of cost, technological reliability, power, thermal budget and so forth. Networks-on-chip (NoCs), which is thoroughly investigated in 2D SoC design as scalable interconnects, is also well relevant to 3D IC Design. The cost of moving from 2D to 3D for any application should be justified with improvements in performance, power, latency and the utilization of Through-Silicon-Via (TSV). In this paper, we present two generalized routing algorithms for different reduced vertical channel density topologies, which can maintain the performance of the NoC and critically improve the utilization of TSV. The experiments for simulation were done in SystemC-RTL which can achieve more flexibility and maintain the cycle accuracy. From the experimental results in aspects of execution time, average throughput, system interconnect and TSV energy consumption, and TSV utilization, 50% vertical channel density topologies achieved the best trade-off for the given constrains.
Surface deflection measurement using structured light

La capacite de portance des chaussees est une information essentielle pour optimiser la gestion et l'entretien des routes. Elle s'estime par la deflexion maximale. Celle-ci est mesuree ponctuellement par des capteurs mecaniques ce qui pose des problemes d'interpretation, due a la discontinuite de la mesure et de securite lies a la faible vitesse d'auscultation. Des simulations numeriques montrent egalement que la deflexion maximale est moins sensible a des dommages localises que d'autres parametres issus du bassin de deflexion. Ainsi, sa pente, a une distance fixe de la charge, ou son rayon de courbure sont plus sensibles a la presence de fissures internes ou de delaminations d'interface que la deflexion maximale. Nous avons etudie une nouvelle methode de mesure basee sur une technique d'imagerie qui permettrait de mesurer une surface de deflexion, et d'en deduire aisement de tels parametres. La technique consiste a projeter une lumiere structuree a la surface de la route et a observer la deformation de l'image sous l'influence de la charge. Une premiere experimentation, conduite sur le manege de fatigue du LCPC avec un systeme statique, montre que les performances metrologiques du systeme sont suffisantes pour mesurer un bassin de deflexion.
Efficient Determination of Distance Thresholds for Differential Dependencies

The importance of introducing distance constraints to data dependencies, such as differential dependencies (DDs), has recently been recognized. The differential dependencies are tolerant to small variations, which enable them to apply to wide data quality checking applications, such as detecting data violations. However, the determination of distance thresholds for the differential dependencies is non-trivial. It often relies on a truth data instance which embeds the distance constraints. To find useful distance threshold patterns from data, there are several guidelines of statistical measures to specify, e.g., support, confidence and dependent quality. Unfortunately, given a data instance, users might not have any knowledge about the data distribution, thus it is very challenging to set the right parameters. In this paper, we study the determination of distance thresholds for differential dependencies, in a parameter-free style. Specifically, we compute an expected utility based on the statistical measures from the data. According to our analysis as well as experimental verification, distance threshold patterns with higher expected utility could offer better use in real applications, such as violation detection. We then develop efficient algorithms to determine the distance thresholds having the maximum expected utility. Finally, our extensive experimental evaluation demonstrates the effectiveness and efficiency of the proposed methods.
International Conference on Information Systems ( ICIS ) 2008 Incentives and Perceptions of Information Security Risks

Technologies and procedures for effectively securing cyberspace exist, but are largely underdeployed. One reason for this is that organizational reward systems lack the proper incentives for decision-maker allocation of resources. We identify characteristics of differing stakeholder perceptions of security and privacy risks and integrate them in a decision making framework. We significantly revise the Fischhoff and Slovic model of risk perceptions --introducing ordinal scales to the identified characteristics of risk perceptions, and incorporating the dynamics of perception by including the important and neglected time element. Over twelve months, we reviewed and verified the model with thirty five senior information security executives from industrial and governmental organizations. We present a methodology for identification of perverse incentives---situations where the interests of a manager or employee are not aligned with those of the organization; and how the policies and reward system may be modified to correct the
On ( a , d )-vertex-antimagic total labeling of Harary graphs

Let G = (V, E) be a graph with v vertices and e edges. An (a, d)-vertex-antimagic total labeling is a bijection λ from V (G) ∪ E(G) to the set of consecutive integers 1, 2, . , v + e, such that the weights of the vertices form an arithmetic progression with the initial term a and common difference d. If λ(V (G)) = {1, 2, . , v} then we call the labeling a super (a, d)-vertex-antimagic total. In this paper we construct (a, d)-vertex-antimagic total labeling on Harary graphs as well as for the disjoint union of k identical copies of Harary graphs.
Using Discharge Summaries to Improve Information Retrieval in Clinical Domain

Task 3 of the 2013 ShARe/CLEF eHealth Evaluation Lab simulated web searches for health information by patients. The web searches were designed to be connected to hospital discharge summaries from the patient's Electronic Medical Record (EMR), thus effectually modeling a post-visit information need. We primarily investigated three research questions about the retrieval of medical information from the web: 1) to what degree retrieval techniques effective in searching Elec- tronic Medical Records (EMRs) could aid in finding medical web docu- ments; 2) to what degree medical web retrieval would benefit from natu- ral language processing (NLP) techniques that extract information from text based on medical knowledge; and 3) how to leverage contextual information in the patient's discharge summaries to improve retrieval. We submitted seven runs to ShARe/CLEF eHealth. Our best run used effective EMR-based IR techniques, NLP-produced information, and in- formation in patients' discharge summaries to achieve precision at 10 (P@10) scores at or above the CLEF median for all but 2 of 50 test queries.
Kinetic aspects of calcium metabolism in lactating sheep offered herbages with different Ca concentrations and the effect of protein supplementation

1. Two experiments are described in which kinetic aspects of calcium metabolism were studied in housed lactating sheep consuming different fresh herbage species. The importance of protein supply was also investigated. 2. In Expt. 1, two groups (n 4) were offered, ad lib. , a freshly cut ryegrass (Lolium perenne L.)-white clover (Trifolium repens L.) pasture containing 5·48 g Ca/kg dry matter (DM). One group was supplemented daily with 100 g protected casein. A third group (n 4) was offered, ad lib. , freshly cut oats-Tama ryegass (Lolium multiflorum L.) herbage which had a lower Ca content of 3·07 g Ca/kg DM. Stable Ca and nitrogen balances were carried out during the first 7 weeks of lactation. At this stage 180 μCi45Ca were administered for Ca kinetic studies. 3. In Expt 2, eight sheep were offered, ad lib. , a fresh ryegrass–white clover pasture, and paired on the basis of their udder size. One member of each pair was supplemented daily with 100 g casein via the abomasum and the amount of milk removed was equalized between pairs. Ca and N balances (12 d) and Ca kinetic studies (280 μCi 45Ca) were carried out during weeks 2 and 5 of lactation. 4. Rate of absorption of Ca increased, while rate of Ca secretion in milk and resorption from bone decreased as lactation progressed. Ca balances changed from negative to positive as lactation progressed in sheep offered ryegrass–white clover, but, while improving, were always negative in sheep offered oats–Tama ryegrass. Protein supplementation increased (18%) milk production of the ewes in Expt 1 and their retention of N in Expt 2. 5. The proportion of utilized Ca derived from the diet, as opposed to the skeleton, tended to increase as a result of protein supplementation. 6. Availability of Ca from ryegrass–white clover ranged from 0.19 to 0.32, even though only 50% of the net Ca requirement was derived from the diet. Availability of Ca from the oats–Tama ryegrass diet was similar, though in this case less than 20% of the net Ca requirement was derived from the diet. It was concluded that availability of Ca from forage diets may be lower than previously anticipated. 7. Faecal endogenous loss ranged from 16 to 40 mg Ca/kg body-weight per d, and was similar on both diets. 8. These and other findings are used to discuss more fully the subject of Ca nutrition in sheep, in particular, the implications of the strong homeostatic control of Ca absorption and the influence of protein status on the relative contribution of the diet and the skeleton in meeting the net Ca requirement of the ewe during lactation.
On Studying Organizational Cultures

The article presents an overview of the longitudinal-processual theory of organizational formation. The ideological underpinnings of the method are described, highlighting its central focus on the factors and elements of an organization's creation and formation rather than its existent structures or practices. Speculative discussion is given regarding the processes involved in organizational culture, based off of an empirical school administration case study. Additional topics discussed include the influence of "dramatic" events which broadly change the social structure of the environment, the influence of social entrepreneurs, and the specific definition of organizational culture as an entity.
A Hidden-State Maximum Entropy Model Forword Confidence Estimation

We propose a probabilistic model for estimating word confidence by fusing predictor features. Starting from the maximum entropy (ME) method, we first prove that ME model is equivalent to the best model with certain form to the minimum expected cross entropy (MECE) criterion. Under the MECE criterion, We extend the form of ME model by introducing a hidden state. We call the new model hidden-state maximum entropy (HSME) model. In a keyword-spotting task, we combine predictor features from both phonetic and word-level systems. Compared to lattice posterior alone, recall at 80% precision is improved from 38.1% to 49.5% on voicemail and from 37.1% to 51.9% on Switchboard. Compared with other fusion methods, HSME consistently outperforms decision tree, and most cases SVM.
Diastolic Learning: Making the Tacit, Explicit

Introduction: Surgery is a motor skill that has to be learnt through practice. The acquisition of motor skills and the principles are well documented especially in sport. Deliberate practice is the engagement in structured activities created specifically to improve performance in a domain and requires feedback. The experience needed to become an expert can be helped in the early stages of training with deliberate practice and observation by a skilled trainer. The aim of this project is to establish whether a combination of low fidelity simulation models and deliberate practice can reliably predict achievement of basic surgical skills competency. Video based scoring was used to quantify progress. Methods: We recruited thirty junior doctors and medical students with minimal exposure to surgery. They were provided with appropriate instruments and materials. They were given a demonstration of low fidelity simulation models, principles of needle handling and feedback on their first attempts. An initial video was taken. Subsequently they were given specific exercises to practice at home. They were reassessed after a period of one week and a second video was taken. Results: The participants were scored on four parameters: Time/pace, flow/rhythm, precision, rotation. There was significant improvement on all four parameters in twenty-eight out of thirty participants. This ranged from 18.9% (time) to 40% (flow). Conclusion: This project has enhanced our knowledge and practice in surgical education and training. Our work provides evidence on how low-fidelity simulation models can reliably be used to achieve significant progress through early stages of the learning curve. Furthermore it demonstrates the principles that need to be observed in order for deliberate practice to be effective and efficient in acquisition of surgical skills.