gebhart/patrepeval huggingface dataset:
Graph Learning From Filtered Signals: Graph System and Diffusion Kernel Identification (2018)

This paper introduces a novel graph signal processing framework for building graph-based models from classes of filtered signals. In our framework, graph-based modeling is formulated as a graph system identification problem, where the goal is to learn a weighted graph (a graph Laplacian matrix) and a graph-based filter (a function of graph Laplacian matrices). In order to solve the proposed problem, an algorithm is developed to jointly identify a graph and a graph-based filter (GBF) from multiple signal/data observations. Our algorithm is valid under the assumption that GBFs are one-to-one functions. The proposed approach can be applied to learn diffusion (heat) kernels, which are popular in various fields for modeling diffusion processes. In addition, for specific choices of graph-based filters, the proposed problem reduces to a graph Laplacian estimation problem. Our experimental results demonstrate that the proposed algorithm outperforms the current state-of-the-art methods. We also implement our framework on a real climate dataset for modeling of temperature signals.
Proceedings of the 15th annual international conference on Mobile computing and networking (2009)

Welcome to Beijing and to ACM MobiCom 2009, the 15th Annual Conference on Mobile Computing and Networking. MobiCom has become the premier venue for top quality research in mobile computing and networking, and the entire organizing committee has attempted to assemble for you a top-notch technical program consisting of papers, posters, demos, keynote lectures and a panel on cutting-edge topics in wireless networking and mobile computing. We hope you have a stimulating, enjoyable, and fruitful experience at the conference!

The centerpiece of the conference, the technical program, consists, as in past years, a thought-provoking mixture of systems and theory papers. These span the gamut of topics in wireless networking, touching upon mobile phones, mesh networks, body area networks, infrastructure-based wireless networks, and on-chip wireless communication! The technical program consists of 30 papers, selected from 282 submissions received from 30 countries worldwide, after a thorough two-stage review process in which we received a total of 956 reviews, or about 3.4 reviews on average per paper! At the program committee meeting in Los Angeles, we discussed 65 papers before converging on the final program.

There were two features of the review process that deserve mention. First, we selected an associate technical program committee consisting of junior academic researchers, as well as senior researchers from industry and government labs. They brought valuable perspective to the second-stage of the review process. Second, a group of researchers in Asia organized a shadow technical program committee. The shadow PC process was designed to expose junior researchers in Asia to submissions to a top notch conference. Its process was completely decoupled from the main technical program, and did not influence the selection of the papers for the technical program. Paper authors were given the option of choosing to have their papers reviewed by the shadow PC, and about half the submitted papers elected to do so.

If the technical program is a success, it will be entirely due to the efforts of a very energetic group of researchers who formed the main technical program committee (TPC)! Each TPC member reviewed nearly 25 papers, participated in constructive electronic discussions before the program committee meeting, and attended or called into the TPC meeting from different parts of the globe. The meeting itself was infused with vigorous debate and thoughtful discussion, and remained lively till the very end, an indication of the TPC's dedication to upholding MobiCom's reputation as the premier mobile computing and networking conference! Coordinating the logistics of a TPC meeting for a top-tier conference is a difficult endeavor, and we could not have done it without the help of Gertrude Lewis and Justin Collins.
Least-Privilege Calls to Amazon Web Services (2022)

We address least-privilege in a particular context of public cloud computing: calls to Amazon Web Services (AWS) Application Programming Interfaces (APIs). AWS is, by far, the largest cloud provider, and therefore an important context in which to consider the fundamental security design principle of least-privilege, which states that a thread of execution should possess only those privileges it needs. There have been reports of over-privilege being a root cause of attacks against AWS cloud applications, and a least-privilege set for an API call is a necessary building-block in devising a least-privilege policy for a cloud application. We observe that accurate information on a least-privilege set for an invoker of a method to possess is simply not available for most such methods in AWS. We provide a meaningful characterization of least-privilege in this context. We then propose techniques to determine such sets, and discuss a black-box process we have devised and carried out to identify such sets for all 707 API methods we are able to invoke across five AWS services. We discuss a number of interesting discoveries we have made, some of which are surprising and some alarming, that we have reported to AWS. Our work has resulted in a database of least-privilege sets for API calls to AWS, which we make available publicly. Developers can consult our database when configuring security policies for their cloud applications, and we welcome contributors that augment our database. Also, we discuss example uses of our database via an assessment of two repositories and two full-fledged serverless applications that are available publicly and have policies published alongside. We observe that the vast majority of policies are over-privileged. Our work contributes constructively to securing cloud applications in the largest cloud provider.
Protein Folding (1998)

ADVERTISEMENT RETURN TO ISSUEPREVEditorialNEXTProtein FoldingJay R. Winkler and Harry B. GrayView Author Information California Institute of Technology Guest Editors Cite this: Acc. Chem. Res. 1998, 31, 11, 698Publication Date (Web):October 21, 1998Publication History Published online21 October 1998Published inissue 1 November 1998https://pubs.acs.org/doi/10.1021/ar980086phttps://doi.org/10.1021/ar980086peditorialACS PublicationsCopyright © 1998 American Chemical Society. This publication is available under these Terms of Use. Request reuse permissions This publication is free to access through this site. Learn MoreArticle Views1049Altmetric-Citations12LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail PDF (16 KB) Get e-AlertscloseSUBJECTS:Kinetics,Lasers,Peptides and proteins,Probes,Protein folding Get e-Alerts
Functionality and reliability of resistive RAM (RRAM) for non-volatile memory applications (2016)

Various RRAM concepts are currently being investigated (Oxide based RAM, Conductive Bridge RAM), all showing pros and cons depending on the architecture and memory stack. As the specifications are strongly application-dependent, it is likely that the RRAM technology will be bound to a specific market segment. In this paper, we discuss the potential of RRAM for non-volatile memory applications, among them: storage class memory, embedded memory, programmable logic, mass storage and neuromorphic applications. By means of experimental studies and simulations, we analyze the role of the integrated materials on the memory performances and reliability and try to propose optimized stacks suitable for each targeted application.
Is CoV(t)-based Modeling Sufficient for Traffic Characterization in Network Links ? (2008)

For performance evaluation and dimensioning of packet-based networks, engineers need simple, efficient and realistic traffic models. The traffic volume on a packet link, observed at different time scales t, has previously been modeled as a stationary stochastic process based on the Coefficient of Variation CoV(t). In this paper we try to supply the missing information about the shape of the distribution functions, required to fully characterize the traffic in network links. Applying the maximum entropy principle, we show that the knowledge about the mean rate and the value of CoV(t), associated with the information about the link capacity C, gives truncated Gaussian distributions that are bathtub-shaped at short time-scales and bell-shaped at long-time-scale, leading to quite accurate modeling of the traffic volume distributions at all time-scales t. We illustrate this with some real traffic and some simulated traffic.
Image placement order optimization for mobile commerce (2018)

With the increase in popularity of mobile commerce, the placement order of images on mobile displays is an important factor to attract and retain customers' attention. In this paper, we propose a novel method to optimize the placement of item images based upon the relative attractiveness of each image to the customer. To judge this, the proposed method estimates the leave rate of the customer at each image for each ordering using a model based on unsupervised hierarchical clustering. This allows estimating the expected leave rate for different image placements, solving an optimization problem to obtain the best ordering. The model is evaluated using a dataset collected from Rakuten Ichiba, the largest e-commerce site in Japan.
Experimental synchronization monitoring of l/Q misalignment and pulse carving misalignment in 20-Gbit/s RZ-DQPSK data generation (2007)

We experimentally demonstrate the misalignment monitoring of l/Q data streams and carver misalignment in a 20-Gbit/s RZ-DQPSK transmitter. We get 20 dB dynamic range for data misalignment and 6.3 dB dynamic range for carver misalignment by measuring RF clock-tone and low-frequency power. (2 pages)
Circuit model for shaft voltage prediction in induction motors fed by PWM-based AC drives (2003)

The development of high-frequency pulsewidth-modulation-based adjustable-speed drives (ASDs) has increased the efficiency, performance, and controllability in induction motor applications. However, the high switching frequencies and the faster switching times of insulated gate bipolar transistors (the device of choice in these ASDs) introduce disadvantages like overvoltages at the motor terminals when long cables are used between the drive and the motor. Another industry-wide concern is the generation of rotor shaft voltage and the resulting bearing current. The grease film in a bearing acts as a capacitor that charges due to the transitions in the common-mode voltage imposed at the motor terminals by the drive. The breakdown of the film causes a spike of current to flow that can damage the bearing and reduce life. A significant amount of effort has been directed at understanding the shaft voltage phenomenon and the associated bearing current. This paper attempts to develop circuit models to predict the level of the shaft voltage. The circuit models can then be used to predict the shaft voltage levels at different installations, using simulation software like PSpice. Circuit models for two specific motors are developed. The predicted shaft voltage is very close to the actual voltage levels seen on the shaft when the motors are operated by ASDs.
Creating Polarization-Entangled Photon Pairs from a Semiconductor Quantum Dot Using the Optical Stark Effect (2009)

In typical epitaxial quantum dots (QDs) the ideally degenerate optical excitons are energy split, preventing the formation of two-photon entanglement in a biexciton decay. We use an external field, here a continuous-wave laser tuned to the QD in the ac Stark limit, to cancel the splitting and create two-photon entanglement. Quantum-state tomography is used to construct the two-photon density matrix. When the splitting is removed it satisfies well-known entanglement tests. Our approach shows that polarization-entangled photons can be routinely produced in semiconductor nanostructures.
Innovative grout/retrieval demonstration final report (1995)

This report presents the results of an evaluation of an innovative retrieval technique for buried transuranic waste. Application of this retrieval technique was originally designed for full pit retrieval; however, it applies equally to a hot spot retrieval technology. The technique involves grouting the buried soil waste matrix with a jet grouting procedure, applying an expansive demolition grout to the matrix, and retrieving the debris. The grouted matrix provides an agglomeration of fine soil particles and contaminants resulting in an inherent contamination control during the dusty retrieval process. A full-scale field demonstration of this retrieval technique was performed on a simulated waste pit at the Idaho National Engineering Laboratory. Details are reported on all phases of this proof-of-concept demonstration including pit construction, jet grouting activities, application of the demolition grout, and actual retrieval of the grouted pit. A quantitative evaluation of aerosolized soils and rare earth tracer spread is given for all phases of the demonstration, and these results are compared to a baseline retrieval activity using conventional retrieval means. 8 refs., 47 figs., 10 tabs.
Ultrasonography and Computed Tomography in Severe Urinary Tract Infection (1985)

No AccessJournal of UrologyRadiology, Nuclear Medicine and Sonography1 Oct 1985Ultrasonography and Computed Tomography in Severe Urinary Tract Infection C.H. June, M.D. Browning, L.P. Smith, D.J. Wenzel, R.S. Pyatt, L.M. Checchio, and E.S. Amis C.H. JuneC.H. June More articles by this author , M.D. BrowningM.D. Browning More articles by this author , L.P. SmithL.P. Smith More articles by this author , D.J. WenzelD.J. Wenzel More articles by this author , R.S. PyattR.S. Pyatt More articles by this author , L.M. ChecchioL.M. Checchio More articles by this author , and E.S. AmisE.S. Amis More articles by this author View All Author Informationhttps://doi.org/10.1016/S0022-5347(17)47485-4AboutPDF ToolsAdd to favoritesDownload CitationsTrack CitationsPermissionsReprints ShareFacebookLinked InTwitterEmail "Ultrasonography and Computed Tomography in Severe Urinary Tract Infection." The Journal of Urology, 134(4), p. 848 © 1985 by The American Urological Association Education and Research, Inc.FiguresReferencesRelatedDetails Volume 134Issue 4October 1985Page: 848 Advertisement Copyright & Permissions© 1985 by The American Urological Association Education and Research, Inc.MetricsAuthor Information C.H. June More articles by this author M.D. Browning More articles by this author L.P. Smith More articles by this author D.J. Wenzel More articles by this author R.S. Pyatt More articles by this author L.M. Checchio More articles by this author E.S. Amis More articles by this author Expand All Advertisement PDF DownloadLoading ...
High flow nasal heliox improves work of breathing and attenuates lung injury in a newborn porcine lung injury model (2015)

High flow nasal Heliox decreased respiratory load, reduced resistive work of breathing indices and attenuated lung inflammatory profile while ventilation was supported at less pressure effort in the presence of acute lung injury.
Purification and characterization of echinoderm casein kinase II. Regulation by protein kinase C (1992)

Casein kinase II (CKII) is one of several protein kinases that become activated before germinal-vesicle breakdown in maturing sea-star oocytes. Echinoderm CKII was purified over 11,000-fold with a recovery of approximately 10% by sequential fractionation of the oocyte cytosol on tyrosine-agarose, heparin-agarose, casein-agarose and MonoQ. The purified enzyme contained 45, 38 and 28 kDa polypeptides, which corresponded to its alpha, alpha' and beta subunits respectively. The beta-subunit was autophosphorylated on one major tryptic peptide on serine residues, whereas the alpha'-subunit incorporated phosphate into at least two tryptic peptides primarily on threonine residues. Western-blotting analysis of sea-star oocyte extracts with two different anti-peptide antibodies that recognized conserved regions of the alpha-subunit indicated that the protein levels of the alpha- and alpha'-subunits of CKII were unchanged during oocyte maturation. The purified CKII was partly inactivated (by 25%) by preincubation with protein-serine/threonine phosphatase 2A, but protein-tyrosine phosphatases had no effect. The beta-subunit of CKII was phosphorylated on a serine residue(s) up to 0.54 mol of P/mol of beta-subunit by purified protein kinase C, and this correlated with a 1.5-fold enhancement of its phosphotransferase activity with phosvitin as a substrate. CKII was not a substrate for the maturation-activated myelin basic protein kinase p44mpk from sea-star oocytes, nor for cyclic-AMP-dependent protein kinase. These studies point to possible regulation of CKII by protein phosphorylation.
Midkine and pleiotrophin concentrations in biopsy needle washout of breast masses. (2014)

e22104 Background: The primary preoperative diagnostic method for distinguishing malignant from benign breast masses is core biopsy histology, but this approach can be inconclusive. Midkine (MDK) and pleiotrophin (PTN) are two closely related heparin-binding growth factors which are overexpressed in a wide variety of human cancers. Concentrations of both growth factors were found to be greater in washout of fine needle aspiration biopsies of malignant thyroid nodules compared to benign nodules. Because MDK and PTN are also overexpressed in breast cancer, we hypothesized that concentrations of these factors in washout of biopsy needles would be higher in breast cancer than in benign lesions and thus might aid in the preoperative diagnosis of breast masses. Methods: We plan to study 70 subjects. Here we report early findings from initial subjects enrolled (n=11, age 50 ± 12 y, mean ± SD, all female). Subjects underwent ultrasound-, MRI- or mammogram-guided core needle biopsies of breast masses (n=15). Needle contents were used for histology, and the needle was then washed with buffer for immunoassays. MDK and PTN were measured by high-sensitivity sandwich ELISAs, and DNA concentration was used to normalize the data. Samples with DNA < 50 ng/mL were excluded on the assumption of insufficient tissue sampling. Results: The MDK/DNA ratio was 0.32 ± 0.31 ng/ng (mean ± SD) in benign lesions (n = 11). The MDK/DNA ratio was 0.15 ± 0.41 ng/ng in the 2 malignant lesions sampled to date (1 estrogen receptor positive (ER+), progesterone receptor positive (PR+), HER2 negative invasive ductal carcinoma, 1 lobular carcinoma in situ), similar to benign lesions. The PTN/DNA ratio was 1.03 ± 1.19 ng/ng in benign lesions (n = 13). In one malignant lesion (ER+, PR+, HER2 negative invasive ductal carcinoma), the PTN/DNA ratio was 0 ng/ng, similar to benign lesions, but in the other malignant lesion (lobular carcinoma in situ), the ratio was substantially higher, 19.0 ng/ng. Conclusions: Preliminary findings indicate that both MDK and PTN are readily measurable in washout of needle biopsy samples from breast masses. Study of additional subjects is needed to determine whether specific types of breast cancer have higher MDK and/or PTN concentrations than benign masses.
Identification of Differentially‐Expressed MicroRNAs in the Paraventricular Nucleus (PVN) Following Myocardial Infarction (MI) (2008)

Alterations in gene regulation in central cardiovascular regulatory regions such as the PVN may play an important role in cardiovascular homeostasis. Given recent evidence suggesting that changes in miRNA expression may be involved in cardiovascular disease, we hypothesized that miRNA expression in the PVN is altered following MI. Microarray analyses for miRNA expression was performed on total RNA samples (n=3) isolated from PVN punches pooled from 5 brains of MI or sham mice using Sangers miRbase V8.0 array specific for mouse. Fifteen miRNAs were differentially regulated (&gt;1.5 fold change between MI and sham mice; 11 up‐regulated, 4 down‐regulated in MI mice). MI‐induced alterations in the expression of mir‐29(a,b,c), mmu‐mir‐9 and ‐9*, and mmu‐mir‐199b were statistically significant (p&lt;0.05; n=3). Up‐regulation of mmu‐mir29c expression was confirmed by real time PCR, and was increased 10‐fold in MI vs. sham mice (p&lt;0.01, n=3). Sequence analysis using miRBase revealed likely interactions of the mmu‐mir‐29 family of micoRNAs with Fos, Agtr2, and MTMR7 genes, some of the highly and specifically expressed genes in neuronal cells. Further studies for confirming the binding of miRNAs to postulated mRNAs are in progress. These studies suggest that differential expression of miRNAs following MI may contribute to changes in gene expression in the PVN involved in MI‐induced heart failure.
Innate function of house dust mite allergens: robust enzymatic degradation of extracellular matrix at elevated pH (2017)

Our data highlight that D.p. is a robust source of several distinct enzymes with protease- and <i>N</i>-acetyl-β-hexosaminidase activities. In alkaline milieu they can degrade components of the ECM. Therefore, D.p. may contribute to epithelial barrier disruption especially when the skin surface pH is elevated.
<title>Micromachining of transparent materials by laser ablation of organic solution</title> (2000)

Transparent materials such as fused silica, quartz, calcium fluoride, and fluorocarbon polymer were etched upon irradiation of organic solution containing pyrene with a conventional KrF excimer laser. Threshold fluence for etching was 240 mJ/cm<SUP>2</SUP> for fused silica. Etch rate remarkably depended on a concentration of pyrene: higher etch rate with the increase of pyrene concentration. It means that pyrene molecules play an important role in this process. The etch rate can be easily controlled through changing a laser pulse number, a laser fluence and a concentration of solution. The mechanism for this process is discussed by cyclic multiphotonic absorption of pyrene in the excited states, thermal relaxation, and formation of super-heated solution. As the results, it is suggested that the process is based on the combination of two processes in the interface between the transparent materials and the liquid: one is a heating process by a super-heated liquid and the other is an attacking process by a high temperature and pressure vapor.
Evaluation of the Utility of a (Pr,Nd)Co5 Alloy for Permanent Magnets (1971)

Neodymium substitution for Pr in PrCo5 increases Curie point and saturation and lowers the coercive force of powders. Attritor-milled powders of Pr0.87Nd0.13Co5 have up to MHc = 4100 Oe. They can be improved only insignificantly by treating the particles with citric or dilute nitric acid. Magnets having (BH) max = 4.5 and 5.5 MG Oe were pressed from such powders. A magnet of 13 MG Oe was produced by liquid-phase sintering.