LLukas22/scidocs huggingface dataset:
A Large Public Corpus of Web Tables containing Time and Context Metadata

The Web contains vast amounts of HTML tables. Most of these tables are used for layout purposes, but a small subset of the tables is relational, meaning that they contain structured data describing a set of entities [2]. As these relational Web tables cover a very wide range of different topics, there is a growing body of research investigating the utility of Web table data for completing cross-domain knowledge bases [6], for extending arbitrary tables with additional attributes [7, 4], as well as for translating data values [5]. The existing research shows the potentials of Web tables. However, comparing the performance of the different systems is difficult as up till now each system is evaluated using a different corpus of Web tables and as most of the corpora are owned by large search engine companies and are thus not accessible to the public. In this poster, we present a large public corpus of Web tables which contains over 233 million tables and has been extracted from the July 2015 version of the CommonCrawl. By publishing the corpus as well as all tools that we used to extract it from the crawled data, we intend to provide a common ground for evaluating Web table systems. The main difference of the corpus compared to an earlier corpus that we extracted from the 2012 version of the CommonCrawl as well as the corpus extracted by Eberius et al. [3] from the 2014 version of the CommonCrawl is that the current corpus contains a richer set of metadata for each table. This metadata includes table-specific information such as table orientation, table caption, header row, and key column, but also context information such as the text before and after the table, the title of the HTML page, as well as timestamp information that was found before and after the table. The context information can be useful for recovering the semantics of a table [7]. The timestamp information is crucial for fusing time-depended data, such as alternative population numbers for a city [8].
Implementation of location awareness and sharing system based on GPS and GPRS using J2ME, PHP and MYSQL

This document provides detail on the implementation of a location awareness system which gives the user's current location, sends this location using SMS (Short Message Service) plus sharing location with friends and family and view them on Google maps. Users can also take benefit of this application in emergency situations by using emergency feature of this application. To get the location coordinates, application is using GPS (Global Positioning System) as location provider. The application design has five parts: a mobile client, a web server, a database, GPS system and a map service. A mobile client which consists of a mobile and GPS receiver finds the location of the user to get aware of his location. In order to share this location the mobile client sends this location to the web server from where other users can get this location if they have the authentication provided by the user. The mobile client is implemented using J2ME which is one of the most promising software platforms for mobile devices. Sun representatives assert that 18 to 20 million mobile phones support the J2ME platform [1]. Analysts predict that within the next few years, this technology will become omnipresent. According to Gartner Group estimates, in 2006, approximately 80 percent of mobile phones will support Java [1]. The web server side programming is done using PHP and database is maintained by MYSQL.
Scaling Up MIMO: Opportunities and Challenges with Very Large Arrays

Multiple-input multiple-output (MIMO) technology is maturing and is being incorporated into emerging wireless broadband standards like long-term evolution (LTE) [1]. For example, the LTE standard allows for up to eight antenna ports at the base station. Basically, the more antennas the transmitter/receiver is equipped with, and the more degrees of freedom that the propagation channel can provide, the better the performance in terms of data rate or link reliability. More precisely, on a quasi static channel where a code word spans across only one time and frequency coherence interval, the reliability of a point-to-point MIMO link scales according to Prob(link outage) ` SNR-ntnr where nt and nr are the numbers of transmit and receive antennas, respectively, and signal-to-noise ratio is denoted by SNR. On a channel that varies rapidly as a function of time and frequency, and where circumstances permit coding across many channel coherence intervals, the achievable rate scales as min(nt, nr) log(1 + SNR). The gains in multiuser systems are even more impressive, because such systems offer the possibility to transmit simultaneously to several users and the flexibility to select what users to schedule for reception at any given point in time [2].
Effectiveness of vacuum-assisted closure (VAC) therapy in the healing of chronic diabetic foot ulcers.

INTRODUCTION
This is the fi rst prospective study done locally to determine the effectiveness of vacuum-assisted closure (VAC) therapy in the healing of chronic diabetic foot ulcers.


MATERIALS AND METHODS
An electronic vacuum pump was used to apply controlled negative pressure evenly across the wound surface. Changes in wound dimension, presence of wound granulation and infection status of diabetic foot ulcers in 11 consecutive patients with diabetes were followed over the course of VAC therapy.


RESULTS
Healing was achieved in all wounds. Nine wounds were closed by split-skin grafting and 2 by secondary closure. The average length of treatment with VAC therapy was 23.3 days. Ten wounds showed reduction in wound size. All wounds were satisfactorily granulated and cleared of bacterial infection at the end of VAC therapy.


CONCLUSIONS
VAC therapy was useful in the treatment of diabetic foot infection and ulcers, which after debridement, may present with exposed tendon, fascia and/or bone. These included ray amputation wounds, wounds post-debridement for necrotising fasciitis, wounds post-drainage for abscess, a heel ulcer and a sole ulcer. It was able to prepare ulcers well for closure via split-skin grafting or secondary closure in good time. This reduced cost of VAC therapy, as therapy was not prolonged to attain greater reduction in wound area. VAC therapy also provides a sterile, more controlled resting environment to large, exudating wound surfaces. Large diabetic foot ulcers were thus made more manageable.
A general design formula of multi-section power divider based on singly terminated filter design theory

A novel design formula of multi-section power divider is derived to obtain wide isolation performance. The derived design formula is based on the singly terminated filter design theory. This paper presents several simulation and experimental results of multi section power divider to show validity of the proposed design formula. Experiments show excellent performance of multi section power divider with multi-octave isolation characteristic.
Linear-phase FIR interpolation, decimation, and mth-band filters utilizing the farrow structure

This paper introduces novel linear-phase finite-impulse response (FIR) interpolation, decimation, and Mth-band filters utilizing the Farrow structure. In these new overall filters, each polyphase component (except for one term) is realized using the Farrow structure with a distinct fractional delay. The corresponding interpolation/decimation structures can therefore be implemented using only one set of linear-phase FIR subfilters and one set of multipliers that correspond to the distinct fractional delays. The main advantage of the proposed structures is that they are flexible as to the conversion factors, and this also for an arbitrary set of integer factors, including prime numbers. In particular, they can simultaneously implement several converters at a low cost. The proposed filters can be used to generate both general filters and Mth-band filters for interpolation and decimation by the integer factor M. (In this paper, a general filter for interpolation and decimation by M means a filter having a bandwidth of approximately /spl pi//M without the restriction that /spl pi//M be included in the transition band. This is in contrast to an Mth-band filter whose transition band does include /spl pi//M.) In both cases, the overall filter design problem can be posed as a convex problem, the solution of which is globally optimum. Design examples are included in the paper illustrating the properties and potentials of the proposed filters.
Red blood cell and platelet microparticles in myocardial infarction patients treated with primary angioplasty.

BACKGROUND
Red blood cell and platelet microparticles (RBCm and PLTm, respectively) have drawn research attention as to their potential prothrombotic and vasoconstrictive effects in experimental settings. However, the relevance of circulating microparticles in clinical settings is largely undetermined.


METHODS
Circulating microparticles were quantified with a flow cytometric method in blood samples from consecutive STEMI patients after primary PCI. A matched cohort of healthy volunteers was used to derive reference values for comparison. STEMI patients were followed for 6 months for a composite clinical endpoint.


RESULTS
Fifty-one STEMI patients (age 59.8 ± 8.8 years) and 50 controls (age 56.2 ± 9.2 years; p=0.155) were enrolled. RBCm concentration was 18,198 ± 6062/μl in the reference cohort versus 33,740 ± 21,169/μl in STEMI patients (p<0.001). RBCm count was not correlated to total RBCs (standardized beta 0.018; p=0.861). PLTm did not differ between groups (17,529 ± 16,292/μl in STEMI patients versus 14,372 ± 6211/μl in controls; p=0.203). RBCm c-statistic was 0.832 (95% confidence interval 0.720 to 0.944), while PLTm prognostic value was not statistically significant (c-statistic 0.614, 95% confidence interval 0.444 to 0.784). In the multivariate analysis, RBCm concentration was independently associated with the occurrence of the clinical endpoint, after adjustment for age, ejection fraction, serum creatinine and presence of diabetes (adjusted p=0.034).


CONCLUSIONS
The present study demonstrates for the first time that erythrocyte microparticles are elevated in patients with STEMI treated with primary PCI, with levels approximately double those measured in a reference population of healthy volunteers, and their concentrations appear to be positively associated with adverse clinical events.
Context Modeling in OWL for Smart Building Services

This article presents an approach to context-aware services for “smart buildings” based on Web and Semantic Web techniques. The services striven for are first described, then their realization using Web and Semantic Web services is explained. Finally, advantages of the approach are stressed.
New Enhancement Algorithm for Fingerprint Images

In this paper, an improved algorithm for enhancement of fingerprint image is proposed on the basis of the image normalization and Gabor filter. Firstly, the adaptive normalization based on block processing is suggested for improvement of fingerprint images. An input image is partitioned into sub-blocks with the size of K × L at first and the region of interest (ROI) of the fingerprint image is acquired. The parameters for the image normalization are adaptively determined according to the statistics of each block. By utilizing these parameters, the block image is normalized for the next process. Secondly, a new technique for selection of two important parameters of Gabor filter is devised. These parameters are the ridge direction and the ridge frequency. In this study, the ridge direction of a block image is determined by the probabilistic approach unlike other works. With this ridge direction, the ridge frequency is selected by utilizing the directional projection. The proposed algorithms are tested with NIST fingerprint images and show significant improvement in the experiments.
Элементы трагизма и комизма в политической карикатуре

In the article, the elements of tragedy and comedy are viewed. The ways of expressing comic ad tragic mood are particular to each nation, as for American identity, paradox is used as the most important way to express humorous, ironical and satirical characteristics of political caricature
Nachdiplom Lecture: Statistics Meets Optimization 4.1 Problem Set up and Motivation

Last time, we proved that a sketch dimension m % 1 δ2W (AK(xLS) ∩ Sn−1) is sufficient to ensure this property. A related but slightly different notion of approximation is that of solution approximation, in which we measure the quality in terms of some norm between x̂ and xLS. Defining the (semi)-norm ‖u‖A : = √ uTATAu/n, let us say that x̂ is a δ-accurate solution approximation if ‖xLS − x̂‖A ≤ δ. (4.4)
Métodos de pesquisa empregados na produção do conhecimento sobre administração em enfermagem

This study aimed to analyze and describe the characteristics of research methods used in the production of dissertations and theses on Nursing Administration. This is a documentary study of quantitative approach, covering 596 abstracts of research works on Nursing Administration, analyzed according to the variables of research method, temporal distribution, titles and themes. Of all analyzed abstracts, 49.8% were quantitative studies and 43.1% were qualitative. Descriptive studies amounted to 74.8%, exploratory to 21.5% and cross-sectional accounted for 86.7%. As for the data collection procedure, 46.8% were case studies and 25.7% were surveys. The positivist thought guided 49.0% of studies and phenomenology appeared in 19.3%. Only 38.3% of the studies deepened the analysis with the philosophical and theoretical framework. We concluded that the Nursing Administration knowledge was predominantly formed by quantitative, descriptive, cross-sectional and case studies, enlightened by the positivist thought and of little depth in the philosophical and theoretical framework of analysis. Descriptors: Nursing Administration Research; Academic Dissertations; Education, Nursing, Graduate; Methodology. Meneses AS, Sanna MC. Rev. Eletr. Enf. [Internet]. 2015 out./dez.;17(4). Disponível em: http://dx.doi.org/10.5216/ree.v17i4.34648. 2
R-Apriori: An Efficient Apriori based Algorithm on Spark

Association rule mining remains a very popular and effective method to extract meaningful information from large datasets. It tries to find possible associations between items in large transaction based datasets. In order to create these associations, frequent patterns have to be generated. The "Apriori" algorithm along with its set of improved variants, which were one of the earliest proposed frequent pattern generation algorithms still remain a preferred choice due to their ease of implementation and natural tendency to be parallelized.
 While many efficient single-machine methods for Apriori exist, the massive amount of data available these days is far beyond the capacity of a single machine. Hence, there is a need to scale across multiple machines to meet the demands of this ever-growing data. MapReduce is a popular fault-tolerant framework for distributed applications. Nevertheless, heavy disk I/O at each MapReduce operation hinders the implementation of efficient iterative data mining algorithms, such as Apriori, on MapReduce platforms.
 A newly proposed in-memory distributed dataflow platform called Spark overcomes the disk I/O bottlenecks in MapReduce. Therefore, Spark presents an ideal platform for distributed Apriori. However, in the implementation of Apriori, the most computationally expensive task is the generation of candidate sets having all possible pairs for singleton frequent items and comparing each pair with every transaction record. Here, we propose a new approach which dramatically reduces this computational complexity by eliminating the candidate generation step and avoiding costly comparisons.
 We conduct in-depth experiments to gain insight into the effectiveness, efficiency and scalability of our approach. Our studies show that our approach outperforms the classical Apriori and state-of-the-art on Spark by many times for different datasets.
Inverter topologies for ultrasonic piezoelectric transducers with high mechanical Q-factor

Piezoelectric ultrasonic transducers are often used in well known applications such as ultrasonic cutting or cleaning processes. A novel application is the utilization of transducers in ultrasonic standing wave atomizers. Here, the transducers produce an ultrasonic field resulting in high alternating excess pressures, used to disintegrate polymer melts for powder lacquer. The power supplies stimulating the transducer have to provide output voltages at ultrasonic frequencies and output power levels at several kW. Besides the output filter circuit of an inverter is strongly influenced, especially when driving piezoelectric transducers with a high mechanical quality factor. In this contribution, two resonant converter concepts and a pulse width modulated converter (PWM converter) feeding ultrasonic transducers are analyzed and compared. In this comparison focus is laid on: sensitivity of the output filter to varying load conditions, potential of miniaturization and cost savings and the frequency range, in which different transducers can be fed by the power supply. The results are summarized in a benchmark matrix. Based on these results, a flexible PWM converter was developed and realized. This laboratory power supply is part of a rapid prototype system (dSpace). Measurements are presented in the last part of this contribution.
Shared and distinct anatomical correlates of semantic and phonemic fluency revealed by lesion-symptom mapping in patients with ischemic stroke

Semantic and phonemic fluency tasks are frequently used to test executive functioning, speed and attention, and access to the mental lexicon. In semantic fluency tasks, subjects are required to generate words belonging to a category (e.g., animals) within a limited time window, whereas in phonemic fluency tasks subjects have to generate words starting with a given letter. Anatomical correlates of semantic and phonemic fluency are currently assumed to overlap in left frontal structures, reflecting shared executive processes, and to be distinct in left temporal and right frontal structures, reflecting involvement of distinct memory processes and search strategies. Definite evidence for this assumption is lacking. To further establish the anatomical correlates of semantic and phonemic fluency, we applied assumption-free voxel-based and region-of-interest-based lesion-symptom mapping in 93 patients with ischemic stroke. Fluency was assessed by asking patients to name animals (semantic), and words starting with the letter N and A (phonemic). Our findings indicate that anatomical correlates of semantic and phonemic fluency overlap in the left inferior frontal gyrus and insula, reflecting shared underlying cognitive processes. Phonemic fluency additionally draws on the left rolandic operculum, which might reflect a search through phonological memory, and the middle frontal gyrus. Semantic fluency additionally draws on left medial temporal regions, probably reflecting a search through semantic memory, and the right inferior frontal gyrus, which might reflect the application of a visuospatial mental imagery strategy in semantic fluency. These findings establish shared and distinct anatomical correlates of semantic and phonemic fluency.
D-PUF: An intrinsically reconfigurable DRAM PUF for device authentication in embedded systems

Physically Unclonable Functions (PUFs) have proved to be effective and low-cost measure against counterfeiting by providing device authentication and secure key storage services. Memory based PUF implementations are an attractive option due to the ubiquitous nature of memory in electronic devices and the requirement of minimal (or no) additional circuitry. DRAM based PUFs are particularly advantageous due to their large address space and multiple controllable parameters during response generation. However, prior works on DRAM PUFs use a static response generation mechanism making them vulnerable to security attacks. Further, they result in very slow device authentication, are not applicable to off-the-shelf DRAM modules, or require DRAM power cycling prior to authentication.
 In this paper, we propose D-PUF, an intrinsically reconfigurable DRAM PUF based on refresh pausing. A key feature of the proposed DRAM PUF is that it can be reconfigured by varying the refresh-pause interval, which changes it's challenge-response behavior, making it robust against various attacks. We use the PUF to design a secure, low-overhead methodology for performing device authentication. The design is implemented and validated using an Altera Stratix IV GX FPGA based Terasic TR4-230 development board and several off-the-shelf 1GB DDR3 DRAM modules. Our experimental results demonstrate a 4.3×-6.4× reduction in authentication time, compared to previous work. Using controlled temperature and accelerated aging tests, we also demonstrate the robustness of our authentication mechanism to temperature variations and aging effects.
Rarely seen complications of circumcision, and their management.

OBJECTIVE
Circumcision, performed for religious or medical reasons is the procedure of surgical excision of the skin covering the glans penis, preputium in a certain shape and dimension so as to expose the tip of the glans penis. Short- and long- term complication rates of up to 50% have been reported, varying due to the recording system of different countries in which the procedure has been accepted as a widely performed simple surgical procedure. In this study, treatment procedures in patients presented to our clinic with complications after circumcision are described and methods to decrease the rate of the complications are reviewed.


MATERIAL AND METODS
Cases that presented to our clinic between 2010 and 2013 with early complications of circumcision were retrospectively reviewed. Cases with acceptedly major complications as excess skin excision, skin necrosis and total amputation of the glans were included in the study, while cases with minor complications such as bleeding, hematoma and infection were excluded from the study.


RESULTS
Repair with full- thickness skin grafts was performed in patients with excess skin excision. In cases with skin necrosis, following the debridement of the necrotic skin, primary repair or repair with full- thickness graft was performed in cases where full- thickness skin defects developed and other cases with partial skin loss were left to secondary healing. Repair with an inguinal flap was performed in the case with glans amputation.


CONCLUSION
Circumcisions performed by untrained individuals are to be blamed for the complications of circumcision reported in this country. The rate of complications increases during the "circumcision feasts" where multiple circumcisions were performed. This also predisposes to transmission of various diseases, primarily hepatitis B/C and AIDS. Circumcision is a surgical procedure that should be performed by specialists under appropriate sterile circumstances in which the rate of complications would be decreased. The child may be exposed to recurrent psychosocial and surgical trauma when it is performed by incompetent individuals.