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10 Briefe an Johann Michael Armbruster

Johann Caspar Lavater
<span title="">1798</span> <span class="release-stage">unpublished</span>
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.7891/e-manuscripta-83677">doi:10.7891/e-manuscripta-83677</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/y3k6vlxlxbchpkgswy3ezo5vii">fatcat:y3k6vlxlxbchpkgswy3ezo5vii</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20211216040954/https://www.e-manuscripta.ch/download/pdf/2357616?name=10%20Briefe%20an%20Johann%20Michael%20Armbruster" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/62/fd/62fd872bda104bfb617c453f6580da3628b4dd16.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.7891/e-manuscripta-83677"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="external alternate icon"></i> Publisher / doi.org </button> </a>

PIQL: Success-Tolerant Query Processing in the Cloud [article]

Michael Armbrust, Kristal Curtis, Tim Kraska, Armando Fox, Michael J. Franklin, David A. Patterson
<span title="2011-11-30">2011</span> <i > arXiv </i> &nbsp; <span class="release-stage" >pre-print</span>
ACKNOWLEDGMENTS We would like to thank the following people, along with the reviewers, for feedback that significantly improved the content of this paper: Bill Bolosky, Henry Cook, Michael Jordan, Kimberly  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener" href="https://arxiv.org/abs/1111.7166v1">arXiv:1111.7166v1</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/uijb7rd7ffgalhj4cjgsfqkipe">fatcat:uijb7rd7ffgalhj4cjgsfqkipe</a> </span>
<a target="_blank" rel="noopener" href="https://archive.org/download/arxiv-1111.7166/1111.7166.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> File Archive [PDF] </button> </a> <a target="_blank" rel="external noopener" href="https://arxiv.org/abs/1111.7166v1" title="arxiv.org access"> <button class="ui compact blue labeled icon button serp-button"> <i class="file alternate outline icon"></i> arxiv.org </button> </a>

PIQL

Michael Armbrust, Kristal Curtis, Tim Kraska, Armando Fox, Michael J. Franklin, David A. Patterson
<span title="2011-11-01">2011</span> <i title="VLDB Endowment"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/p6rqwwpkkjbcldejepcehaalby" style="color: black;">Proceedings of the VLDB Endowment</a> </i> &nbsp;
ACKNOWLEDGMENTS We would like to thank the following people, along with the reviewers, for feedback that significantly improved the content of this paper: Bill Bolosky, Henry Cook, Michael Jordan, Kimberly  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.14778/2078331.2078334">doi:10.14778/2078331.2078334</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/hximwyzejbeh7ig4hp4g5id7ti">fatcat:hximwyzejbeh7ig4hp4g5id7ti</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20130703011246/http://www.eecs.berkeley.edu/~kcurtis/piql.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/e0/8f/e08f0dcb7991b4098864a242814656e4785d8f33.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.14778/2078331.2078334"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="external alternate icon"></i> Publisher / doi.org </button> </a>

Control of Continuum Models of Production Systems

Michael La Marca, Dieter Armbruster, Michael Herty, Christian Ringhofer
<span title="">2010</span> <i title="Institute of Electrical and Electronics Engineers (IEEE)"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/tiaci7xy45hczhz755zlpu5h7q" style="color: black;">IEEE Transactions on Automatic Control</a> </i> &nbsp;
Armbruster is with the School of Mathematical and Statistical Sciences, Arizona State University Tempe, 85287-1804 USA.  ...  INTRODUCTION R ECENTLY Armbruster et al. [1] have introduced a continuum model to simulate the average behavior of production systems at an aggregate level.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1109/tac.2010.2046925">doi:10.1109/tac.2010.2046925</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/jpfxysqjurfg3nbhi3w3xh7mde">fatcat:jpfxysqjurfg3nbhi3w3xh7mde</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20190426150321/https://pure.tue.nl/ws/files/2886809/Metis237972.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/53/36/5336b98e41db3d41fe0b77f2471693df8e7dee26.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1109/tac.2010.2046925"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="external alternate icon"></i> ieee.com </button> </a>

SCADS: Scale-Independent Storage for Social Computing Applications [article]

Michael Armbrust, David Patterson, Beth Trushkowsky (UC Berkeley), Jesse Trutna
<span title="2009-09-09">2009</span> <i > arXiv </i> &nbsp; <span class="release-stage" >pre-print</span>
Collaborative web applications such as Facebook, Flickr and Yelp present new challenges for storing and querying large amounts of data. As users and developers are focused more on performance than single copy consistency or the ability to perform ad-hoc queries, there exists an opportunity for a highly-scalable system tailored specifically for relaxed consistency and pre-computed queries. The Web 2.0 development model demands the ability to both rapidly deploy new features and automatically
more &raquo; ... e with the number of users. There have been many successful distributed key-value stores, but so far none provide as rich a query language as SQL. We propose a new architecture, SCADS, that allows the developer to declaratively state application specific consistency requirements, takes advantage of utility computing to provide cost effective scale-up and scale-down, and will use machine learning models to introspectively anticipate performance problems and predict the resource requirements of new queries before execution.
<span class="external-identifiers"> <a target="_blank" rel="external noopener" href="https://arxiv.org/abs/0909.1775v1">arXiv:0909.1775v1</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/hn6psupmofgjhi473qzqberxwu">fatcat:hn6psupmofgjhi473qzqberxwu</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20200901171829/https://arxiv.org/ftp/arxiv/papers/0909/0909.1775.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/51/92/5192f6819d2dbd28ccd2b83fd673078fc3c5a240.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener" href="https://arxiv.org/abs/0909.1775v1" title="arxiv.org access"> <button class="ui compact blue labeled icon button serp-button"> <i class="file alternate outline icon"></i> arxiv.org </button> </a>

PIQL

Michael Armbrust, Stephen Tu, Armando Fox, Michael J. Franklin, David A. Patterson, Nick Lanham, Beth Trushkowsky, Jesse Trutna
<span title="">2010</span> <i title="ACM Press"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/vxrc3vebzzachiwy3nopwi3h5u" style="color: black;">Proceedings of the 2010 international conference on Management of data - SIGMOD &#39;10</a> </i> &nbsp;
Large-scale websites are increasingly moving from relational databases to distributed key-value stores for high request rate, low latency workloads. Often this move is motivated not only by key-value stores' ability to scale simply by adding more hardware, but also by the easy to understand predictable performance they provide for all operations. While this data model works well, lookups are only done by primary key. More complex queries require onerous, explicit index management and imperative
more &raquo; ... data lookups by the developer. We demonstrate PIQL, a Performance Insightful Query Language that allows developers to express many of the queries found on these websites, while still providing strict bounds on the number of I/O operations for any query.
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1145/1807167.1807320">doi:10.1145/1807167.1807320</a> <a target="_blank" rel="external noopener" href="https://dblp.org/rec/conf/sigmod/ArmbrustTFFPLTT10.html">dblp:conf/sigmod/ArmbrustTFFPLTT10</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/6xncqyz3jbb33dtzlnsi4e6dvm">fatcat:6xncqyz3jbb33dtzlnsi4e6dvm</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20110124201759/http://www.cs.berkeley.edu:80/~franklin/Papers/sigmod10piqldemo.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/ed/9c/ed9cc19c3af4046f576a59960ee8bf27fc0a5089.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1145/1807167.1807320"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="external alternate icon"></i> acm.org </button> </a>

The case for PIQL

Michael Armbrust, Nick Lanham, Stephen Tu, Armando Fox, Michael J. Franklin, David A. Patterson
<span title="">2010</span> <i title="ACM Press"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/eitdfnn7k5fohgz7jhhim3f4bm" style="color: black;">Proceedings of the 1st ACM symposium on Cloud computing - SoCC &#39;10</a> </i> &nbsp;
Large-scale, user-facing applications are increasingly moving from relational databases to distributed key/value stores for high-request-rate, low-latency workloads. Often, this move is motivated not only by key/value stores' ability to scale simply by adding more hardware, but also by the easy to understand predictable performance they provide for all operations. For complex queries, this approach often requires onerous explicit index management and imperative data lookup by the developer. We
more &raquo; ... ropose PIQL, a Performance Insightful Query Language that allows developers to express many queries found on these websites while still providing strict bounds on the number of I/O operations that will be performed.
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1145/1807128.1807149">doi:10.1145/1807128.1807149</a> <a target="_blank" rel="external noopener" href="https://dblp.org/rec/conf/cloud/ArmbrustLTFFP10.html">dblp:conf/cloud/ArmbrustLTFFP10</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/jzcx2ti4zfcifk6abq3vzsxwfu">fatcat:jzcx2ti4zfcifk6abq3vzsxwfu</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20110617003455/http://www.eecs.berkeley.edu:80/~franklin/Papers/socc10armbrust.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/de/46/de465e6841a7a0f63355d671b1e36ceef79d169a.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1145/1807128.1807149"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="external alternate icon"></i> acm.org </button> </a>

Generalized scale independence through incremental precomputation

Michael Armbrust, Eric Liang, Tim Kraska, Armando Fox, Michael J. Franklin, David A. Patterson
<span title="">2013</span> <i title="ACM Press"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/vxrc3vebzzachiwy3nopwi3h5u" style="color: black;">Proceedings of the 2013 international conference on Management of data - SIGMOD &#39;13</a> </i> &nbsp;
Developers of rapidly growing applications must be able to anticipate potential scalability problems before they cause performance issues in production environments. A new type of data independence, called scale independence, seeks to address this challenge by guaranteeing a bounded amount of work is required to execute all queries in an application, independent of the size of the underlying data. While optimization strategies have been developed to provide these guarantees for the class of
more &raquo; ... ies that are scale-independent when executed using simple indexes, there are important queries for which such techniques are insu cient. Executing these queries scale-independently requires precomputing results using incrementally-maintained materialized views. However, since this precomputation e↵ectively shifts some of the query processing burden from execution time to insertion time, a scale-independent system must be careful to ensure that storage and maintenance costs do not threaten scalability. In this paper, we describe a scaleindependent view selection and maintenance system, which uses novel static analysis techniques that ensure that created views do not themselves become scaling bottlenecks. Finally, we present an empirical analysis that includes all the queries from the TPC-W benchmark and validates our implementation's ability to maintain nearly constant highquantile query and update latency even as an application scales to hundreds of machines.
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1145/2463676.2465333">doi:10.1145/2463676.2465333</a> <a target="_blank" rel="external noopener" href="https://dblp.org/rec/conf/sigmod/ArmbrustLKFFP13.html">dblp:conf/sigmod/ArmbrustLKFFP13</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/qrjxa2ebgzgsreoqzydj4iloie">fatcat:qrjxa2ebgzgsreoqzydj4iloie</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20160818185917/https://amplab.cs.berkeley.edu/wp-content/uploads/2013/04/PIQLSigmod2013.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/b7/4a/b74adcdf14c9052bcbac794e2a1bb5e742ea5d13.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1145/2463676.2465333"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="external alternate icon"></i> acm.org </button> </a>

Pretransplant Immune Regulation Predicts Allograft Outcome

Ewa Jankowska-Gan, Adam Sheka, Hans W. Sollinger, John D. Pirsch, R. Michael Hofmann, Lynn D. Haynes, Michael J. Armbrust, Joshua D. Mezrich, William J. Burlingham
<span title="">2012</span> <i title="Ovid Technologies (Wolters Kluwer Health)"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/kblcrbn745akjfxwdj5ztfevce" style="color: black;">Transplantation</a> </i> &nbsp;
Michael Hofmann: Data analysis Lynn D. Haynes: Research design and data analysis Michael Armbrust: Data analysis Joshua Mezrich: Data analysis William J.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1097/tp.0b013e31823e46a0">doi:10.1097/tp.0b013e31823e46a0</a> <a target="_blank" rel="external noopener" href="https://www.ncbi.nlm.nih.gov/pubmed/22186938">pmid:22186938</a> <a target="_blank" rel="external noopener" href="https://pubmed.ncbi.nlm.nih.gov/PMC3366360/">pmcid:PMC3366360</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/7c57cxn5y5at3oqusu4orjjuby">fatcat:7c57cxn5y5at3oqusu4orjjuby</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20191109145522/http://europepmc.org/backend/ptpmcrender.fcgi?accid=PMC3366360&amp;blobtype=pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/fd/8b/fd8b4d3c3fc5a1b769e436c4d35d53f9b1019153.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1097/tp.0b013e31823e46a0"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="external alternate icon"></i> Publisher / doi.org </button> </a> <a target="_blank" rel="external noopener" href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3366360" title="pubmed link"> <button class="ui compact blue labeled icon button serp-button"> <i class="file alternate outline icon"></i> pubmed.gov </button> </a>

Apache Spark

Matei Zaharia, Michael J. Franklin, Ali Ghodsi, Joseph Gonzalez, Scott Shenker, Ion Stoica, Reynold S. Xin, Patrick Wendell, Tathagata Das, Michael Armbrust, Ankur Dave, Xiangrui Meng (+2 others)
<span title="2016-10-28">2016</span> <i title="Association for Computing Machinery (ACM)"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/i6iajiiyxvgz3ob6jwcn2pufni" style="color: black;">Communications of the ACM</a> </i> &nbsp;
THE GROWTH OF data volumes in industry and research poses tremendous opportunities, as well as tremendous computational challenges. As data sizes have outpaced the capabilities of single machines, users have needed new systems to scale out computations to multiple nodes. As a result, there has been an explosion of new cluster programming models targeting diverse computing workloads. 1,4,7,10 At first, these models were relatively specialized, with new models developed for new workloads; for
more &raquo; ... ple, MapReduce 4 supported batch processing, but Google also developed Dremel 13 Apache Spark: A Unified Engine for Big Data Processing key insights ˽ A simple programming model can capture streaming, batch, and interactive workloads and enable new applications that combine them. ˽ Apache Spark applications range from finance to scientific data processing and combine libraries for SQL, machine learning, and graphs. ˽ In six years, Apache Spark has grown to 1,000 contributors and thousands of deployments.
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1145/2934664">doi:10.1145/2934664</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/zqffhrnl4rhk5ayrdyv25aiyeq">fatcat:zqffhrnl4rhk5ayrdyv25aiyeq</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20171025131643/http://www.dcs.bbk.ac.uk:80/~dell/teaching/cc/paper/cacm16-11/p56-zaharia.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/bb/b9/bbb9c3119edd9daa414fd8f2df5072587bfa3462.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1145/2934664"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="external alternate icon"></i> acm.org </button> </a>

G-OLA

Kai Zeng, Sameer Agarwal, Ankur Dave, Michael Armbrust, Ion Stoica
<span title="">2015</span> <i title="ACM Press"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/vxrc3vebzzachiwy3nopwi3h5u" style="color: black;">Proceedings of the 2015 ACM SIGMOD International Conference on Management of Data - SIGMOD &#39;15</a> </i> &nbsp;
Nearly years ago, Hellerstein, Haas and Wang proposed online aggregation (OLA), a technique that allows users to ( ) observe the progress of a query by showing iteratively re ned approximate answers, and ( ) stop the query execution once its result achieves the desired accuracy. In this demonstration, we present G-OLA, a novel mini-batch execution model that generalizes OLA to support general OLAP queries with arbitrarily nested aggregates using e cient delta maintenance techniques. We have
more &raquo; ... emented G-OLA in FluoDB, a parallel online query execution framework that is built on top of the Spark cluster computing framework that can scale to massive data sets. We will demonstrate FluoDB on a cluster of machines processing roughly TB of real-world session logs from a video-sharing website. Using an ad optimization and an A/B testing based scenario, we will enable users to perform real-time data analysis via web-based query consoles and dashboards.
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1145/2723372.2735381">doi:10.1145/2723372.2735381</a> <a target="_blank" rel="external noopener" href="https://dblp.org/rec/conf/sigmod/ZengADAS15.html">dblp:conf/sigmod/ZengADAS15</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/a66fy635njbhzopnu6umkodlwu">fatcat:a66fy635njbhzopnu6umkodlwu</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20150714192010/http://www.eecs.berkeley.edu:80/~kaizeng/papers/sigmod_2015.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/87/69/8769a4fe60df9884cc68d14b0ee9f3c1ca925ab6.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1145/2723372.2735381"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="external alternate icon"></i> acm.org </button> </a>

Kindheitstraumatisierungen bei Patienten mit Borderline-Persönlichkeitsstörung

Tobias Wilfer, Michael Armbrust, Tim Aalderink, Carsten Spitzer
<span title="2020-08-26">2020</span> <i title="Springer Science and Business Media LLC"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/ct26p4mstbgura3j4v524fj3xy" style="color: black;">Psychotherapeut (Berlin)</a> </i> &nbsp;
Armbrust, T. Aalderink und C. Spitzer geben an, dass kein Interessenkonflikt besteht.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1007/s00278-020-00452-8">doi:10.1007/s00278-020-00452-8</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/jz2mgefo55ezthvrsj7mnqnqk4">fatcat:jz2mgefo55ezthvrsj7mnqnqk4</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20201103053742/https://link.springer.com/content/pdf/10.1007/s00278-020-00452-8.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/24/80/2480376c418065a1bd418d774c7a288c45f4d6c0.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1007/s00278-020-00452-8"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="unlock alternate icon" style="background-color: #fb971f;"></i> springer.com </button> </a>

On the Graph Bisection Cut Polytope

Michael Armbruster, Christoph Helmberg, Marzena Fügenschuh, Alexander Martin
<span title="">2008</span> <i title="Society for Industrial &amp; Applied Mathematics (SIAM)"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/hn6wut4eynat5my6xdfsebg7fm" style="color: black;">SIAM Journal on Discrete Mathematics</a> </i> &nbsp;
Given a graph G = (V, E) with node weights ϕ v ∈ N ∪ {0}, v ∈ V , and some number F ∈ N∪{0}, the convex hull of the incidence vectors of all cuts δ(S), S ⊆ V with ϕ(S) ≤ F and ϕ(V \ S) ≤ F is called the bisection cut polytope. We study the facial structure of this polytope which shows up in many graph partitioning problems with applications in VLSI-design or frequency assignment. We give necessary and in some cases sufficient conditions for the knapsack tree inequalities introduced in [9] to be
more &raquo; ... facet-defining. We extend these inequalities to a richer class by exploiting that each cut intersects each cycle in an even number of edges. Finally, we present a new class of inequalities that are based on non-connected substructures yielding non-linear right-hand sides. We show that the supporting hyperplanes of the convex envelope of this non-linear function correspond to the faces of the so-called cluster weight polytope, for which we give a complete description under certain conditions.
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1137/060675253">doi:10.1137/060675253</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/ujmsfcnvhvfwtfta27co5fbefm">fatcat:ujmsfcnvhvfwtfta27co5fbefm</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20190227083523/http://pdfs.semanticscholar.org/7d31/1feb98b7e1dd804eafc133902200aa181603.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/7d/31/7d311feb98b7e1dd804eafc133902200aa181603.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1137/060675253"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="external alternate icon"></i> Publisher / doi.org </button> </a>

Spark SQL

Michael Armbrust, Ali Ghodsi, Matei Zaharia, Reynold S. Xin, Cheng Lian, Yin Huai, Davies Liu, Joseph K. Bradley, Xiangrui Meng, Tomer Kaftan, Michael J. Franklin
<span title="">2015</span> <i title="ACM Press"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/vxrc3vebzzachiwy3nopwi3h5u" style="color: black;">Proceedings of the 2015 ACM SIGMOD International Conference on Management of Data - SIGMOD &#39;15</a> </i> &nbsp;
Spark SQL is a new module in Apache Spark that integrates relational processing with Spark's functional programming API. Built on our experience with Shark, Spark SQL lets Spark programmers leverage the benefits of relational processing (e.g., declarative queries and optimized storage), and lets SQL users call complex analytics libraries in Spark (e.g., machine learning). Compared to previous systems, Spark SQL makes two main additions. First, it offers much tighter integration between
more &raquo; ... l and procedural processing, through a declarative DataFrame API that integrates with procedural Spark code. Second, it includes a highly extensible optimizer, Catalyst, built using features of the Scala programming language, that makes it easy to add composable rules, control code generation, and define extension points. Using Catalyst, we have built a variety of features (e.g., schema inference for JSON, machine learning types, and query federation to external databases) tailored for the complex needs of modern data analysis. We see Spark SQL as an evolution of both SQL-on-Spark and of Spark itself, offering richer APIs and optimizations while keeping the benefits of the Spark programming model.
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1145/2723372.2742797">doi:10.1145/2723372.2742797</a> <a target="_blank" rel="external noopener" href="https://dblp.org/rec/conf/sigmod/ArmbrustXLHLBMK15.html">dblp:conf/sigmod/ArmbrustXLHLBMK15</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/hjyxwbr6hfgrrmqa5lpi2evgcm">fatcat:hjyxwbr6hfgrrmqa5lpi2evgcm</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20181223015224/http://people.csail.mit.edu:80/matei/papers/2015/sigmod_spark_sql.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/f8/45/f8456b259bbf137ba89db548d77ab6643a2e40b2.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1145/2723372.2742797"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="external alternate icon"></i> acm.org </button> </a>

Improved Pump Down Time with Evactron® Turbo Plasma™ Cleaning

Ewa Kosmowska, Michael Cable, Barbara Armbruster, Ronald Vane
<span title="">2017</span> <i title="Cambridge University Press (CUP)"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/p62srgk5yvb2lpsg64xdrhwdyu" style="color: black;">Microscopy and Microanalysis</a> </i> &nbsp;
As the need for higher throughput of samples in Scanning Electron Microscopes (SEMs) and Focused Ion Beam (FIB) systems increases, so does the necessity to shorten pump down times between loading samples. Industry demands SEM/FIB systems to be operational 24/7 and ideally maintained in pristine condition with uncompromised image quality. Frequent venting of the SEMs or FIBs to load samples introduces moisture and contamination into the vacuum chamber, leading to much longer pump down times and
more &raquo; ... ecreased efficiency. The new Evactron Turbo Plasma™ De-Contaminators remove hydrocarbon (HC) contamination [1] from SEMs, FIBs and other analytical tools using a gentle, down-stream plasma afterglow process. At turbo pump pressures, Evactron cleaning becomes faster and spreads throughout the chamber. This is due to longer mean-free-paths that cause less recombination of oxygen radicals in the required three body collisions and decreased scattering to chamber walls [1]. In most cases, short plasma cleaning cycles are sufficient to remove contamination and significantly shorten pump down time, allowing for high throughput of sample processing and analysis. To demonstrate the effect of Evactron Turbo Plasma Cleaning on pump down time and HC contamination removal, the study was done using an EP model Evactron Plasma De-Contaminator on a large, highly oil-contaminated 50 L vacuum chamber equipped with a 450 L/sec turbo molecular pump, 14 CFM scroll pump, MKS 972B dual range pressure gauge and a residual gas analyzer (RGA). Evactron Cleaning was done at 20 Watts for 30 minutes. RGA spectra ( Fig. 1 and 2 ) and pump down curves (Fig. 3) were obtained before and after contamination and plasma cleaning in order to demonstrate the effects of Evactron Turbo Plasma cleaning on pump down time and hydrocarbon removal. The chamber is considered to be in pristine condition when the HC peaks on the RGA spectrum were less than a partial pressure of 2 X 1 -10 Torr. The length of the pump down time shows dependence on hydrocarbon contamination levels [2] in SEMs and FIBs. Therefore, this time could be used as an indicator of the cleanliness of the vacuum system. The data shows that Evactron plasma cleaners significantly reduce both the pump down time of the SEMs and FIBs as well as hydrocarbon contamination, and thus help increase sample processing throughput without compromising the quality of analysis. Typically, vacuum chambers can be cleaned with the Turbo Plasma Cleaning process at turbo molecular pressures of 10 -2 to 10 -3 Torr with typical cleaning times of 2 -10 minutes to maintain pristine conditions, and returning to typical operating pressures in < 20 minutes. Current users of Evactron Plasma Cleaners report significant reduction in pump down time after using Evactron De-Contaminators as well as easier maintenance of the pristine state of cleanliness of their SEMs and FIBs. A more detailed analysis and data from multiple experiments will be presented.
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1017/s1431927617001052">doi:10.1017/s1431927617001052</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/y56f3ahkvre5jivxipvmzsqham">fatcat:y56f3ahkvre5jivxipvmzsqham</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20180727211051/https://www.cambridge.org/core/services/aop-cambridge-core/content/view/D73A79692946E3A0860BEE5AE8E0B55A/S1431927617001052a.pdf/div-class-title-improved-pump-down-time-with-evactron-turbo-plasma-cleaning-div.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/27/f8/27f8c4bf06beb0fa4fb3f846fd0164cacd9e4dd7.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1017/s1431927617001052"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="external alternate icon"></i> cambridge.org </button> </a>
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