gebhart/patrepeval huggingface dataset:
Mining Approximate Frequent Itemsets from Noisy Data (2006)

Frequent itemset mining is a popular and important first step in analyzing data sets across a broad range of applications. The traditional, "exact" approach for finding frequent itemsets requires that every item in the itemset occurs in each supporting transaction. However, real data is typically subject to noise, and in the presence of such noise, traditional itemset mining may fail to detect relevant itemsets, particularly those large itemsets that are more vulnerable to noise. In this paper we propose approximate frequent itemsets (AFI), as a noise-tolerant itemset model. In addition to the usual requirement for sufficiently many supporting transactions, the AFI model places constraints on the fraction of errors permitted in each item column and the fraction of errors permitted in a supporting transaction. Taken together, these constraints winnow out the approximate itemsets that exhibit systematic errors. In the context of a simple noise model, we demonstrate that AFI is better at recovering underlying data patterns, while identifying fewer spurious patterns than either the exact frequent itemset approach or the existing error tolerant itemset approach of Yang et al.
Inflation Expectations (2008)

Agents’ expectations about future values of inflation play an important role in macroeconomic analysis. From a steady-state perspective, higher expected inflation rates induce agents to hold smaller real money balances and, in most models, to hold different amounts of capital. In dynamic analysis, inflationary expectations affect agents’ decisions regarding saving and price adjustments, and affect monetary policy behaviour in ways that have become increasingly important. Over time, analysts’ treatment of expectations evolved from distributed-lag, adaptive models to rational expectations, a change that had major analytical implications. Analysis of learning behaviour has become more prominent, supplementing or occasionally replacing rational expectations.
Semi-hard magnetism of iron nitride films prepared by double ion beam sputtering (1989)

The semihard magnetic properties and crystal structure of iron nitride films prepared by double ion beam sputtering have been investigated. The films consisted of Fe layers and Fe/sub x/N layers bombarded by nitrogen ions during deposition. The films were annealed at 300 degrees C for 3 h after deposition. When the thickness ratio of Fe layers to Fe/sub x/N was adjusted to a value below 10 for films with the appropriate number of pairs of layers, the as-deposited films had coercivity, H/sub c/ of about 100 Oe and saturation magnetization, 4 pi M/sub s/, of about 18 kG. Annealing of films composed of 19 pairs of Fe and Fe/sub x/N layers with a relative thickness ratio of 5 resulted in a large increase in film coercivity from less than 100 Oe before anneal to 500 Oe postanneal. A moderate decrease in film 4 pi M/sub s/ was also seen after the annealing process. X-ray diffractometry showed the presence of zeta -Fe/sub 2/N phase in these films. A moderate decrease of 4 pi M/sub s/ and a marked increase of H/sub c/ may be caused by suppressing the growth of zeta -Fe/sub 2/N crystallites and the short-range irregularity at interfaces between Fe and Fe/sub x/N layers.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Web-style ranking and SLU combination for dialog state tracking (2014)

In spoken dialog systems, statistical state tracking aims to improve robustness to speech recognition errors by tracking a posterior distribution over hidden dialog states.This paper introduces two novel methods for this task.First, we explain how state tracking is structurally similar to web-style ranking, enabling mature, powerful ranking algorithms to be applied.Second, we show how to use multiple spoken language understanding engines (SLUs) in state tracking -multiple SLUs can expand the set of dialog states being tracked, and give more information about each, thereby increasing both recall and precision of state tracking.We evaluate on the second Dialog State Tracking Challenge; together these two techniques yield highest accuracy in 2 of 3 tasks, including the most difficult and general task.
Stability of a normal shock in radial reacting flow with nonuniformities (1981)

Pressure recovery for a cylindrical chemical laser is optimized when a normal shock is located just outside the optical cavity region. The feasibility of maintaining a shock in such a position when the radial flow is reacting and contains nonuniformities has been demonstrated in a small-scale experiment. Flow visualization and flow diagnostics have verified that the shock is stable and that its position is readily adjusted by changing the downstream pressure. Although actual pressure recovery was not measured, it is expected that 100% of normal shock pressure recovery can be achieved in full-scale laser systems without the need for a supersonic diffuser. (Author)
P-sync: A Photonically Enabled Architecture for Efficient Non-local Data Access (2013)

Communication in multi- and many-core processors has long been a bottleneck to performance due to the high cost of long-distance electrical transmission. This difficulty has been partially remedied by architectural constructs such as caches and novel interconnect topologies, albeit at a steep cost in terms of complexity. Unfortunately, even these measures are rendered ineffective by certain kinds of communication, most notably scatter and gather operations that exhibit highly nonlocal data access patterns. Much work has gone into examining how the increased bandwidth density afforded by chip-scale silicon photonic interconnect technologies affects computing, but photonics have additional properties that can be leveraged to greatly accelerate performance and energy efficiency under such difficult loads. This paper describes a novel synchronized global photonic bus and system architecture called P-sync that uses photonics' distance independence to greatly improve performance on many important applications previously limited by electronic interconnect. The architecture is evaluated in the context of a non-local yet common application: the distributed Fast Fourier Transform. We show that it is possible to achieve high efficiency by tightly balancing computation and communication latency in P-sync and achieve upwards of a 6× performance increase on gather patterns, even when bandwidth is equalized.
Biocidal Activity of Nanocrystalline Silver Powders and Particles (2008)

While the activity of the SMAD powders is lower than that of pure silver nitrate, it has the ability to kill bacteria very effectively and over long periods of time.
A Method of Data Aggregation for Wearable Sensor Systems (2016)

Data aggregation has been considered as an effective way to decrease the data to be transferred in sensor networks. Particularly for wearable sensor systems, smaller battery has less energy, which makes energy conservation in data transmission more important. Nevertheless, wearable sensor systems usually have features like frequently dynamic changes of topologies and data over a large range, of which current aggregating methods can't adapt to the demand. In this paper, we study the system composed of many wearable devices with sensors, such as the network of a tactical unit, and introduce an energy consumption-balanced method of data aggregation, named LDA-RT. In the proposed method, we develop a query algorithm based on the idea of 'happened-before' to construct a dynamic and energy-balancing routing tree. We also present a distributed data aggregating and sorting algorithm to execute top-k query and decrease the data that must be transferred among wearable devices. Combining these algorithms, LDA-RT tries to balance the energy consumptions for prolonging the lifetime of wearable sensor systems. Results of evaluation indicate that LDA-RT performs well in constructing routing trees and energy balances. It also outperforms the filter-based top-k monitoring approach in energy consumption, load balance, and the network's lifetime, especially for highly dynamic data sources.
The Effect of Genetic Factors for Longevity: A Comparison of Identical and Fraternal Twins in the Swedish Twin Registry (1998)

Over the total age range examined, a maximum of around one third of the variance in longevity is attributable to genetic factors, and almost all of the remaining variance is due to nonshared, individual specific environmental factors. The evidence that genetic factors play a minor role depending upon age at death merits further examination.
Operational Shock Analysis for 2.5-inch Multi-Disk HDD Considering Ramp-Disk Gap Irregularity (2016)

With an increased mobility, hard disk drives (HDDs) now use ramp load/unload technology, and multiple disks are used to increase the data capacity. This can result in contact between the ramp and the disks, which negatively affects the slider dynamics under operational shock conditions. There are several types of ramp-disk contact, such as simultaneous, successive, and single contact, and these depend on the distance between the ramp and each disk in a multi-disk HDD. This paper examines the effect of ramp-disk contact on the slider dynamics using a transient shock analysis. The ramp-disk contact affects the head stack assembly bending mode and slider dynamics. The effect of irregular gaps between the disks and adjacent ramp on the slider dynamics is analyzed with the ramp-disk contact force. The simulation shows that the gap irregularity between the ramp and each disk should be as small as possible to improve the stability of the slider dynamics.
Redirecting T Cells to Glypican-3 with 4-1BB Zeta Chimeric Antigen Receptors Results in Th1 Polarization and Potent Antitumor Activity (2016)

T cells engineered to express CD19-specific chimeric antigen receptors (CARs) have shown breakthrough clinical successes in patients with B-cell lymphoid malignancies. However, similar therapeutic efficacy of CAR T cells in solid tumors is yet to be achieved. In this study we systematically evaluated a series of CAR constructs targeting glypican-3 (GPC3), which is selectively expressed on several solid tumors. We compared GPC3-specific CARs that encoded CD3ζ (Gz) alone or with costimulatory domains derived from CD28 (G28z), 4-1BB (GBBz), or CD28 and 4-1BB (G28BBz). All GPC3-CARs rendered T cells highly cytotoxic to GPC3-positive hepatocellular carcinoma, hepatoblastoma, and malignant rhabdoid tumor cell lines in vitro. GBBz induced the preferential production of Th1 cytokines (interferon γ/granulocyte macrophage colony-stimulating factor) while G28z preferentially induced Th2 cytokines (interleukin-4/interleukin-10). Inclusion of 4-1BB in G28BBz could only partially ameliorate the Th2-polarizing effect of CD28. 4-1BB induced superior expansion of CAR T cells in vitro and in vivo. T cells expressing GPC3-CARs incorporating CD28, 4-1BB, or both induced sustained tumor regressions in two xenogeneic tumor models. Thus, GBBz CAR endows T cells with superior proliferative potential, potent antitumor activity, and a Th1-biased cytokine profile, justifying further clinical development of GBBz CAR for immunotherapy of GPC3-positive solid tumors.
Primary-only vs. primary-secondary variable flow systems (2002)

Several articles over the last several years have extolled the virtues of primary-only variable flow chilled water pumping systems compared to the conventional primary-secondary pumping system. One articles even predicts the demise of primary-secondary systems. While there is no question that the primary-only system has many advantages, the primary-secondary system may still be preferable for some applications.
Semiconductor Quantum-Well Structures for Optoelectronics–Recent Advances and Future Prospects– (1987)

Due to the quantum size effect, semiconductor quantum-well structure exhibits many unique material properties which can not be realized in conventional bulk crystals. These unique properties are very attractive for novel electronic and optoelectronic devices. This paper reviews studies on physical properties and application of quantum well structures for optoelectronics, and gives a future forecasting in the progress of this field.
Watch Global, Cache Local: YouTube Network Traffic at a Campus Network - Measurements and Implications (2008)

User Generated Content has become very popular since the birth of web services such as YouTube allowing the distribution of such user-produced media content in an easy manner. YouTube-like services are different from existing traditional VoD services because the service provider has only limited control over the creation of new content. We analyze how the content distribution in YouTube is realized and then conduct a measurement study of YouTube traffic in a large university campus network. The analysis of the traffic shows that: (1) No strong correlation is observed between global and local popularity; (2) neither time scale nor user population has an impact on the local popularity distribution; (3) video clips of local interest have a high local popularity. Using our measurement data to drive trace-driven simulations, we also demonstrate the implications of alternative distribution infrastructures on the performance of a YouTube-like VoD service. The results of these simulations show that client-based local caching, P2P-based distribution, and proxy caching can reduce network traffic significantly and allow faster access to video clips. Keywords: Measurement study, Peer-to-peer, Content distribution, Caching 1.
Fine-Grained Face Annotation Using Deep Multi-Task CNN (2018)

We present a multi-task learning-based convolutional neural network (MTL-CNN) able to estimate multiple tags describing face images simultaneously. In total, the model is able to estimate up to 74 different face attributes belonging to three distinct recognition tasks: age group, gender and visual attributes (such as hair color, face shape and the presence of makeup). The proposed model shares all the CNN's parameters among tasks and deals with task-specific estimation through the introduction of two components: (i) a gating mechanism to control activations' sharing and to adaptively route them across different face attributes; (ii) a module to post-process the predictions in order to take into account the correlation among face attributes. The model is trained by fusing multiple databases for increasing the number of face attributes that can be estimated and using a center loss for disentangling representations among face attributes in the embedding space. Extensive experiments validate the effectiveness of the proposed approach.
Impact assessment for vulnerabilities in open-source software libraries (2015)

Software applications integrate more and more open-source software (OSS) to benefit from code reuse. As a drawback, each vulnerability discovered in bundled OSS may potentially affect the application that includes it. Upon the disclosure of every new vulnerability, the application vendor has to assess whether such vulnerability is exploitable in the particular usage context of the applications, and needs to determine whether customers require an urgent patch containing a non-vulnerable version of the OSS. Unfortunately, current decision making relies mostly on natural-language vulnerability descriptions and expert knowledge, and is therefore difficult, time-consuming, and error-prone. This paper proposes a novel approach to support the impact assessment based on the analysis of code changes introduced by security fixes. We describe our approach using an illustrative example and perform a comparison with both proprietary and open-source state-of-the-art solutions. Finally we report on our experience with a sample application and two industrial development projects.
Computing bounding volume hierarchies using model simplification (1999)

Article Computing bounding volume hierarchies using model simplification Share on Authors: Tiow-Seng Tan School of Computing, National University of Singapore, Lower Kent Ridge Road, Singapore 119260 School of Computing, National University of Singapore, Lower Kent Ridge Road, Singapore 119260View Profile , Ket-Fah Chong View Profile , Kok-Lim Low Department of Computer Science, University of North Carolina at Chapel Hill Department of Computer Science, University of North Carolina at Chapel HillView Profile Authors Info & Claims I3D '99: Proceedings of the 1999 symposium on Interactive 3D graphicsApril 1999 Pages 63–69https://doi.org/10.1145/300523.300530Online:26 April 1999Publication History 10citation707DownloadsMetricsTotal Citations10Total Downloads707Last 12 Months1Last 6 weeks0 Get Citation AlertsNew Citation Alert added!This alert has been successfully added and will be sent to:You will be notified whenever a record that you have chosen has been cited.To manage your alert preferences, click on the button below.Manage my AlertsNew Citation Alert!Please log in to your account Save to BinderSave to BinderCreate a New BinderNameCancelCreateExport CitationPublisher SiteGet Access
A novel method for the insulation thickness design of HV XLPE cable based on electrical treeing tests (2014)

Electrical treeing endurance behavior of XLPE cable insulation was investigated by application of AC voltages on specimens with a pin-plane electrode system. The needle inserted has a tip radius of 10 μm, and the pin-plane distance is 2 mm. The relation between applied voltage and tree initiation time, when plotted in a log-log coordinate, could be approximated by three straight lines, and an electrical threshold stress of about 100 kV/mm was deduced from it in the low field region. The voltage endurance coefficient obtained from tree initiation time increased with higher cumulative probability in the constant voltage method, but altered little with the ramping-up rate of step voltages applied in the step-constant voltage method. The treeing breakdown time gave a smaller value of this coefficient, compared with tree initiation. The XLPE insulation of a taping mould joint was tested to be more voltage withstanding than a cable body, for its higher voltage endurance coefficient, 18.6 to 13.8, and slower tree growth, 0.53 to 0.62 mm in 20 minutes. The electrical field for cable insulation design could be connected with tree initiation stress by a field enhancement factor, and this allowed the insulation thickness of a 110 kV XLPE cable to be determined with the value of 12 to 13 mm. It is shown that the insulation design of HV XLPE cables could be safely achieved by the characteristic parameters determined from electrical treeing test.
Fast-response high-quality rectifier with sliding mode control (1994)

A PWM rectifier including an uncontrolled rectifier and a Cuk converter stage driven by a sliding mode controller is described. Like other high-quality rectifiers, this solution allows low-distorted and in-phase line current. Moreover, due to the sliding mode control, fast and stable response is achieved, in spite of the large output filter. Control complexity is the same as that of standard current-mode controls. Converter analysis, design criteria, and experimental results are reported.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Majorana braiding dynamics in nanowires (2015)

Superconductors hosting long-sought excitations called Majorana fermions may ultimately be used as qubits of fault-tolerant topological quantum computers. A crucial challenge for the development of practical topological quantum computers is the implementation of quantum operations of nearly degenerate quantum states as a dynamical process of Majorana fermions. In this paper, we investigate the braiding dynamics of Majorana fermions on superconducting nanowires. In a finite-size system, a nonadiabatic dynamical process between nearly degenerate states dominates the braiding that operates qubits of Majorana fermions. Our simulations clarify how qubits behave in the real-time braiding process and elucidate the optimum superconducting nanowire conditions for efficient topological quantum operation.
On the optimal assignment of customers to parallel servers (1978)

We consider a queuing system with several identical servers, each with its own queue. Identical customers arrive according to some stochastic process and as each customer arrives it must be assigned to some server's queue. No jockeying amongst the queues is allowed. We are interested in assigning the arriving customers so as to maximize the number of customers which complete their service by a certain time. If each customer's service time is a random variable with a non-decreasing hazard rate then the strategy which does this is one which assigns each arrival to the shortest queue.
Slow-Release Formulations of Grandlure, the Synthetic Pheromone of the Boll Weevil123 (1971)

Journal Article Slow-Release Formulations of Grandlure, the Synthetic Pheromone of the Boll Weevil Get access G. H. McKibben, G. H. McKibben Entomology Research Division, Agr. Res. Serv., USDA, State College, Mississippi 39762 Search for other works by this author on: Oxford Academic PubMed Google Scholar D. D. Hardee, D. D. Hardee Entomology Research Division, Agr. Res. Serv., USDA, State College, Mississippi 39762 Search for other works by this author on: Oxford Academic PubMed Google Scholar T. B. Davich, T. B. Davich Entomology Research Division, Agr. Res. Serv., USDA, State College, Mississippi 39762 Search for other works by this author on: Oxford Academic PubMed Google Scholar R. C. Gueldner, R. C. Gueldner Entomology Research Division, Agr. Res. Serv., USDA, State College, Mississippi 39762 Search for other works by this author on: Oxford Academic PubMed Google Scholar P. A. Hedin P. A. Hedin Entomology Research Division, Agr. Res. Serv., USDA, State College, Mississippi 39762 Search for other works by this author on: Oxford Academic PubMed Google Scholar Journal of Economic Entomology, Volume 64, Issue 1, 1 February 1971, Pages 317–319, https://doi.org/10.1093/jee/64.1.317 Published: 01 February 1971 Article history Received: 01 July 1970 Published: 01 February 1971
Manufacture and electrical properties of multiwalled carbon nanotube/BaTiO3 nanocomposite ceramics (2004)

In this paper, we report that novel multiwalled carbon nanotube (MWNT)/BaTiO3 nanocomposite ceramics were successfully fabricated via a hot-press sintering approach. Well dispersed MWNT–BaTiO3 composite powders were prepared by primarily synthesizing a new BaTiO3–MWNT hybrid material and then mixing it with tetragonal BaTiO3 nanoparticles. This new BaTiO3–MWNT hybrid material was characterized by XRD, TEM, and IR methods. High density MWNT/BaTiO3 nanocomposite ceramics were obtained through a hot-press sintering approach using these well-dispersed MWNT–BaTiO3 composite powders. The electrical properties of MWNT/BaTiO3 nanocomposite ceramics were measured and analyzed. Interestingly, the conductivity of MWNT/BaTiO3 nanocomposite ceramics was found to decrease steadily as the amount of MWNTs added increased. Meanwhile, the BaTiO3 semiconductor transformed from n-type to p-type after doping with carbon nanotubes. We attribute these phenomena to the formation of a Schottky barrier constructed at the carbon nanotube–matrix contact.