Listing of recent published HP Labs Technical Reports http://www.hpl.hp.com/techreports/index.html Mon, 7 May 2012 10:10:01 PDT Mon, 7 May 2012 10:10:01 PDT hpl.hp.com en-us http://welcome.hp-ww.com/img/hpweb_1-2_topnav_hp_logo.gif http://www.hp.com HP.com Home 64 55 Overcoming Web Server Benchmarking Challenges in the Multi-Core Era - Hashemian, Raoufehsadat; Krishnamurthy, Diwakar; Arlitt, Martin
Keyword(s): Software Performance; Performance Testing; Multi-Core Servers
Abstract: Web-based services are used by many organizations to support their customers and employees. An important consideration in developing such services is ensuring the Quality of Service (QoS) that users experience is acceptable. Recent years have seen a shift toward deploying Web services on multi-core ...
Full Report ]]> http://www.hpl.hp.com/techreports/2012/HPL-2012-92.html?mtxs=rss-hpl-tr Mon, 7 May 2012 10:10:01 PDT A Process- and Policy-aware Cross Enterprise Collaboration Framework for Multisourced Services - Motahari Nezhad, Hamid Reza; Bartolini, Claudio; Erbes, Jamie; Graupner, Sven
Keyword(s): Cross Enterprise Collaboration; IT Outsourcing; Multisourcing
Abstract: The increasing demand for business agility mandates enterprises to collaborate on many frontlines to stay competitive and achieve high business performance. This has given rise to the issue of Cross Enterprise Collaboration (CEC), which refers to the collaboration of two or more enterprises in achie ...
Full Report ]]> http://www.hpl.hp.com/techreports/2012/HPL-2012-99.html ?mtxs=rss-hpl-tr Mon, 7 May 2012 10:10:01 PDT Deconstructing Queue-Based Mutual Exclusion - Golab, Wojciech
Keyword(s): mutual exclusion; shared memory; theory
Abstract: We formulate a modular approach to the design and analysis of a particular class of mutual exclusion algorithms for shared memory multiprocessor systems. Specifically, we consider algorithms that organize waiting processes into a queue. Such algorithms can achieve O(1) remote memory reference (RMR) ...
Full Report ]]> http://www.hpl.hp.com/techreports/2012/HPL-2012-100.html?mtxs=rss-hpl-tr Mon, 7 May 2012 10:10:01 PDT Action Bubble Metaphor for Gestural Interaction using Depth Camera in a Multi-user Scenario - Hegde, Guruprasad M; Subramanian, Anbumani
Keyword(s): Gestural interaction; human computer interaction depth sensors
Abstract: In this report we propose a novel concept to enable efficient multi-user computer interaction. To demonstrate the concept we make use of a depth-sensor based computer system. The proposed concept is aimed at developing a quantitative measure to inform the computer when and with whom to interact. It ...
Full Report ]]> http://www.hpl.hp.com/techreports/2010/HPL-2010-128R1.html?mtxs=rss-hpl-tr Wed, 2 May 2012 16:10:01 PDT High-recall extraction of acronym-definition pairs with relevance feedback - Yarygina, Anna; Vassilieva, Natalia
Keyword(s): Text processing; acronym-definition extraction; relevance feedback; supervised learning
Abstract: This paper addresses the problem of extracting acronyms and their definitions from large documents in a setting, when high recall is required and user feedback is available. We propose a three step approach to deal with the problem. First, acronym candidates are extracted using a weak regular expres ...
Full Report ]]> http://www.hpl.hp.com/techreports/2012/HPL-2012-46.html?mtxs=rss-hpl-tr Wed, 2 May 2012 16:10:01 PDT Passive Crowd-based Monitoring of World Wide Web Infrastructure and its Performance - Arlitt, Martin; Carlsson, Niklas; Williamson, Carey; Rolia, Jerry
Keyword(s): World Wide Web; passive monitoring; crowd-based monitoring
Abstract: The World Wide Web and the services it provides are continually evolving. Even for a single time instant, it is a complex task to methodologically determine the infrastructure over which these services are provided and the corresponding effect on user perceived performance. For such tasks, researche ...
Full Report ]]> http://www.hpl.hp.com/techreports/2012/HPL-2012-47.html?mtxs=rss-hpl-tr Wed, 2 May 2012 16:10:01 PDT Selling T-shirts and Time Shares in the Cloud - Gmach, Daniel; Rolia, Jerry; Cherkasova, Ludmila
Keyword(s): resource sharing; virtualization; virtual machine sizing; cloud service models; data center efficiency
Abstract: Cloud computing has emerged as a new and alternative approach for providing computing services. Customers acquire and release resources by requesting and returning virtual machines to the cloud. Different service models and pricing schemes are offered by cloud service providers. This can make it dif ...
Full Report ]]> http://www.hpl.hp.com/techreports/2012/HPL-2012-51.html?mtxs=rss-hpl-tr Wed, 2 May 2012 16:10:01 PDT Optimization and Control of Cooling Microgrids for Data Centers - Zhou, Rongliang; Wang, Zhikui; McReynolds, Alan; Bash, Cullen; Christian, Thomas; Shih, Rocky
Keyword(s):
Abstract: Reliable operation of today's data centers requires a tremendous amount of electricity to power both the IT equipment and the supporting cooling facilities. Among the total data center electricity consumption, up to half or more could be used by the cooling system to maintain the thermal status of I ...
Full Report ]]> http://www.hpl.hp.com/techreports/2012/HPL-2012-54.html?mtxs=rss-hpl-tr Wed, 2 May 2012 16:10:01 PDT Adaptive Employee Profile Classification for Resource Planning Tool - Gonzalez, Tere; Santos, Pano; Orozco, Fenando; Alcaraz, Mildreth;De Obeso Alberto,Garcia Alan
Keyword(s): Resource planning; text mining; information extraction; ontologies; relation discovery; classification; bag of words; na*ve bayes classifier; optimization.
Abstract: Matching the right people to the right job considering constraints such as qualifications, availability and cost is the cornerstone of IT projects delivery services. We present a study to improve data accuracy and completeness for resource matching by integrating unstructured data sources and introd ...
Full Report ]]> http://www.hpl.hp.com/techreports/2012/HPL-2012-61.html?mtxs=rss-hpl-tr Wed, 2 May 2012 16:10:01 PDT A Comparison of Processes and Challenges Between Organic, a-Si:H, and Oxide TFTs for Active Matrix Backplanes on Plastic - de la Fuente Vornbrock, Alejandro; Almanza-Workman, Marcia; Dickin, Fraser; Elder, Richard E.; Garcia, Robert A.; Holland, Edward; Jackson, Warren; Jam, Mehrban; Jeans, Albert; Kim, Han-Jun; Kwon, Ohseung; Luo, Hao; Maltabes, John; Mei, Ping; Perlov, Craig; Rudin, John C.; Smith, Mark; Trovinger, Steven; Zhao, Lihua; Taussig, Carl P.
Keyword(s): flexible electronics; thin film transistors; flexible displays; organic semiconductors; amorphous silicon; zinc oxide
Abstract: Processes to produce active-matrix backplanes on plastic substrates have been developed utilizing a-Si:H, multi-component oxide, and organic semiconductor technologies. The suitability of these technologies for future flat panel display applications is discussed. Of these material systems multi-comp ...
Full Report ]]> http://www.hpl.hp.com/techreports/2012/HPL-2012-66.html?mtxs=rss-hpl-tr Wed, 2 May 2012 16:10:01 PDT Failure Resistant Data Center Cooling Control Through Model-Based Thermal Zone Mapping - Zhou, Rongliang; Wang, Zhikui; Bash, Cullen; Cader, Tahir; McReynolds, Alan
Keyword(s):
Abstract: Due to the tremendous cooling costs, data center cooling efficiency improvement has been actively pursued for years. In addition to cooling efficiency, the reliability of the cooling system is also essential for guaranteed uptime. In traditional data center cooling system design with N+1 or higher r ...
Full Report ]]> http://www.hpl.hp.com/techreports/2012/HPL-2012-69.html?mtxs=rss-hpl-tr Wed, 2 May 2012 16:10:01 PDT Traceback Attacks in Cloud-Pebbletrace Botnet - Lin, Wenjie; Lee, David
Keyword(s):
Abstract: Botmaster sets up Command and Control (C&C) server and stepping-stones in the Internet for stealing sensitive information from victim's machine. Clouds provide botmaster with an ideal environment of rich computing resources where he can easily deploy/remove C&C server and establish/teardown stepping ...
Full Report ]]> http://www.hpl.hp.com/techreports/2012/HPL-2012-78.html?mtxs=rss-hpl-tr Wed, 2 May 2012 16:10:01 PDT Deadline-based Workload Management for MapReduce Environments: Pieces of the Perfromance Puzzle. - Verma, Abhishek; Cherkasova, Ludmila; Kumar, Vijay S.; Campbell, Roy H.
Keyword(s): MapReduce; Hadoop; performance; resource allocation; job scheduling;
Abstract: Hadoop and the associated MapReduce paradigm have become the de facto platform for cost-effective analytics over "Big Data". There is an increasing number of MapReduce applications associated with live business intelligence that require completion time guarantees. In this work, we introduce and anal ...
Full Report ]]> http://www.hpl.hp.com/techreports/2012/HPL-2012-82.html?mtxs=rss-hpl-tr Wed, 2 May 2012 16:10:01 PDT Minimax Pointwise Redundancy for Memoryless Models over Large Alphabets - Szpankowski, Wojciech; Weinberger, Marcelo J.
Keyword(s): data compression; redundancy; large alphabets; generating functions; saddle point method.
Abstract: We study the minimax pointwise redundancy of universal coding for memoryless models over large alphabets and present two main results: We first complete studies initiated in Orlitsky and Santhanam deriving precise asymptotics of the minimax pointwise redundancy for all ranges of the alphabet size re ...
Full Report ]]> http://www.hpl.hp.com/techreports/2012/HPL-2012-87.html?mtxs=rss-hpl-tr Wed, 2 May 2012 16:10:01 PDT Nanosphere lithography based technique for fabrication of large area, well ordered metal particle arrays - Barcelo, Steven J.; Lam, Si-Ty; Gibson, Gary A.; Sheng, Xia; Henze, Dick
Keyword(s): nanosphere lithography; plasmonics; nanoparticle; nanofabrication
Abstract: Nanosphere lithography is an effective technique for high throughput fabrication of well-ordered patterns, but expanding the method to large area coverage of nanoparticles less than 300 nm in diameter while maintaining good order has proven challenging. Here we demonstrate a nanosphere lithography b ...
Full Report ]]> http://www.hpl.hp.com/techreports/2012/HPL-2012-25.html?mtxs=rss-hpl-tr Wed, 7 Mar 2012 10:10:00 PST Selective transfer of nanostructured assemblies onto an arbitrary substrate by nanoimprinting - Barcelo, Steven J.; Hu, Min; Kim, Ansoon; Wu, Wei; Li, Zhiyong
Keyword(s): Nanoimprint Lithography; nanofabrication; plasmonics; sensing; SERS
Abstract: Nanoimprint lithography is conventionally used to transfer a pattern from a mold to a deformable and curable resist layer. Here we report a nanoimprinting technique to selectively transfer components of a pre-assembled nanostructure to a new substrate, while retaining the advantages of nanoimprint l ...
Full Report ]]> http://www.hpl.hp.com/techreports/2012/HPL-2012-28.html?mtxs=rss-hpl-tr Wed, 7 Mar 2012 10:10:00 PST Software Versioning in the Cloud - Towards Source Code Management - Gioachin, Filippo; Liang, Qianhui; Yao, Yuxia; Lee, Bu Sung
Keyword(s): Software Development; Cloud Computing; Version Control Systeml; Revisions; Collaborations
Abstract: With the introduction of cloud computing and Web 2.0, many applications are moving to the cloud environment. Version control systems have also taken a first step towards this direction. Nevertheless, existing systems are either client-server oriented or completely distributed, and they don't match e ...
Full Report ]]> http://www.hpl.hp.com/techreports/2012/HPL-2012-43.html?mtxs=rss-hpl-tr Wed, 7 Mar 2012 10:10:00 PST T@gz : Intuitive and Effortless Categorization and Sharing of Email Conversations - Joshi, Parag; Bartolini, Claudio; Graupner, Sven
Keyword(s): Design, Experimentation, Human Factors
Abstract: In this paper, we describe T@g, a system designed for effortless and instantaneous sharing of enterprise knowledge through routine email communications and powerful harvesting of such enterprise information using text analytics techniques. T@gz is a system that enables dynamic, non-intrusive and eff ...
Full Report ]]> http://www.hpl.hp.com/techreports/2012/HPL-2012-44.html?mtxs=rss-hpl-tr Wed, 7 Mar 2012 10:10:00 PST Presto: Complex and Continuous Analytics with Distributed Arrays - Venkataraman, Shivaram; Roy, Indrajit; Schreiber, Robert S.; AuYoung, Alvin
Keyword(s): R; Distributed execution engine; Continuous processing
Abstract: Presto is a distributed programming model for continuously analyzing data. continuous analytics, where applications constantly refine their predictive models as data arrives, is useful in many applications such as user recommendation systems, link analysis, and financial modeling. Unlike batch proce ...
Full Report ]]> http://www.hpl.hp.com/techreports/2011/HPL-2011-198R1.html?mtxs=rss-hpl-tr Wed, 22 Feb 2012 10:10:00 PST Road Recognition using Coarse-grained Vehicular Traces - Liu, Xuemei; Zhu, Yanmin; Wang, Yin; Forman, George; Ni, Lionel M.; Fang Yu; Li Minglu
Keyword(s): map building; GPS; road recognition
Abstract: With more and more vehicles equipped with GPS tracking devices, there is increasing interest in building and updating maps using vehicular GPS traces. Most existing approaches for building maps rely on position traces from highly accurate positioning devices, which are sampled at a high frequency, e ...
Full Report ]]> http://www.hpl.hp.com/techreports/2012/HPL-2012-26.html?mtxs=rss-hpl-tr Wed, 22 Feb 2012 10:10:00 PST Materials Compatibility Assessment via Temperature Controlled Contact Angle Measurements - Chun, Doris; Teishev, Albert; Ng, Hou T.; Hanson, Eric
Keyword(s): Materials compatibility assessment; polymer melt surface energy measurement; pigment surface reconstruction; contact angle
Abstract: Identifying materials with the right compatibility is an important prerequisite to many developmental practices that involve the assembly of different counterparts. For example, failure to identify the appropriate colorants and additives in ink development can lead to unstable formulations which oft ...
Full Report ]]> http://www.hpl.hp.com/techreports/2012/HPL-2012-29.html?mtxs=rss-hpl-tr Wed, 22 Feb 2012 10:10:00 PST ElectroInk Charge Retention in the HP Indigo LEP Press - Anthony, Thomas C.; Chang, Seongsik; Lam, Quang; Gila, Omer
Keyword(s): electronic ink; indigo; charge; discharge
Abstract: ElectroInk experiences multiple transfers, some electrostatic and others mechanical, on its way from the ink can to printed image in an HP Indigo press. For example, in the binary ink developer (BID), ink is electrostatically transferred from the developer roller to a metal cleaning roller and then ...
Full Report ]]> http://www.hpl.hp.com/techreports/2012/HPL-2012-30.html?mtxs=rss-hpl-tr Wed, 22 Feb 2012 10:10:00 PST Effects of Paper on LEP Digital Print Deinking with Alkaline and Neutral Chemistries - Bhattacharyya, Manoj K.; Ng, Hou T.; Mittelstadt, Laurie S.; Aronhime, Marc
Keyword(s): Neutral deinking chemistry; Alkaline deinking chemistry; LEP Digital Prints.
Abstract: We present a comparative study of HPES and HPMF deinking results of LEP printing using a variety of coated and uncoated substrates from different manufacturing locations. Our results identify three most important factors affecting the deinkability of LEP prints. We also show that all of the LEP digi ...
Full Report ]]> http://www.hpl.hp.com/techreports/2012/HPL-2012-31.html?mtxs=rss-hpl-tr Wed, 22 Feb 2012 10:10:00 PST Sensing volatile hydrocarbons in printing process - Nauka, K.; Chang, Seongsik
Keyword(s): volatile hydrocarbons (VOC) in printing processes; sensing VOC
Abstract: this is a conference abstract ...
Full Report ]]> http://www.hpl.hp.com/techreports/2012/HPL-2012-34.html?mtxs=rss-hpl-tr Wed, 22 Feb 2012 10:10:00 PST EnCoRe: Dynamic Consent, Policy Enforcement and Accountable Information Sharing within and across Organisations - Casassa Mont, Marco; Sharma, Vaibhav; Pearson, Siani
Keyword(s): EnCoRe; Dynamic Consent; Policy Enforcement; Information Sharing; Accountability; Technical Architecture; Privacy; Security;
Abstract: This document is an official, public delivery of the UK collaborative project EnCoRe (Ensuring Consent and Revocation), coordinated by HP Labs. It describes the final EnCoRe Technical Architecture and solutions to support dynamic consent (whereby data subjects provide or amend informed consent - pot ...
Full Report ]]> http://www.hpl.hp.com/techreports/2012/HPL-2012-36.html?mtxs=rss-hpl-tr Wed, 22 Feb 2012 10:10:00 PST Feature Selection "Tomography" - Illustrating that Optimal Feature Filtering is Hopelessly Ungeneralizable - Forman, George
Keyword(s): Feature selection; text categorization; visualization; machine learning classification;
Abstract: Feature filtering methods are often used in text classification and other high-dimensional domains to quickly score each feature independently and pass only the best to the learning algorithm. The panoply of available methods grows over the years, with frequent research publications touting new func ...
Full Report ]]> http://www.hpl.hp.com/techreports/2010/HPL-2010-19R1.html?mtxs=rss-hpl-tr Tue, 7 Feb 2012 10:10:00 PST Similarity Pyramid: Browsing a Document Database with - Ahmadullin, ildus; Allebach, Jan
Keyword(s): Document database management; document visual similarity; similarity pyramid; Isomap
Abstract: Managing large document databases has become an important task. Sorting documents with respect to their visual similarity and layout features, and visualization of the whole document database is a desirable application. A user may wish to search for documents in a database that are similar to a quer ...
Full Report ]]> http://www.hpl.hp.com/techreports/2012/HPL-2012-21.html?mtxs=rss-hpl-tr Tue, 7 Feb 2012 10:10:00 PST Enabling Data Sharing in the Cloud - Casassa Mont, Marco; Matteucci, Ilaria; Petrocchi, Marinella; Sbodio, Marco Luca
Keyword(s): Data Sharing; Data Sharing Agreements; Cloud; Dynamic Consent; EnCoRe; Privacy; Security
Abstract: Web interactions usually require the exchange of personal and confidential information for a variety of purposes, including enabling business transactions and the provisioning of services. A key issue affecting these interactions is the lack of trust and control on how data is going to be used and p ...
Full Report ]]> http://www.hpl.hp.com/techreports/2012/HPL-2012-22.html?mtxs=rss-hpl-tr Tue, 7 Feb 2012 10:10:00 PST Planarization coating for polyimide substrates used in roll-to-roll fabrication of active matrix backplanes for flexible displays - Almanza-Workman, Marcia; Jeans, Albert; Braymen, Steve; Elder, Richard E.; Garcia, Robert A.; de la Fuente Vornbrock, Alejandro; Hauschildt, Jason; Holland, Edward; Jackson, Warren; Jam, Mehrban; Jeffrey, Frank; Junge, Kelly; Kim, Han-Jun; Kwon, Ohseung; Larson, Dan; Maltabes, John; Mei, Ping; Perlov, Craig; Smith, Mark; Stieler, Dan; Taussig, Carl P.; Trovinger, Steven; Zhao, Lihua
Keyword(s): Planarization coating; plastic substrate; self-align imprint lithography; flexible displays; active matrix backplane; roll-to-roll fabrication
Abstract: Good surface quality of plastic substrates is essential to reduce pixel defects during roll-to-roll fabrication of flexible display active matrix backplanes. Standard polyimide substrates have high density of "bumps" from fillers and belt marks and other defects from dust and surface scratching. Som ...
Full Report ]]> http://www.hpl.hp.com/techreports/2012/HPL-2012-23.html?mtxs=rss-hpl-tr Tue, 7 Feb 2012 10:10:00 PST Text Documents as Social Networks - Balinsky, Helen; Balinsky, Alexander; Simske, Steven J.;
Keyword(s): Small world network; unusual behavior detection; Helmholtz principle; social networks; keyword extraction; data mining
Abstract: Good surface quality of plastic substrates is essential to reduce pixel defects during roll-to-roll fabrication of flexible display active matrix backplanes. Standard polyimide substrates have high density of ?bumps? from fillers and belt marks and other defects from dust and surface scratching. Som ...
Full Report ]]> http://www.hpl.hp.com/techreports/2012/HPL-2012-27.html?mtxs=rss-hpl-tr Tue, 7 Feb 2012 10:10:00 PST The top ten similarities between playing hockey and building a better Internet (extended version) - Arlitt, Martin
Keyword(s): hockey; Internet; lessons learned
Abstract: Time tends to pass more quickly than we would like. Sometimes it is helpful to reflect on what you have accomplished, and to derive what you have learned from the experiences. These "lessons learned" may then be leveraged by yourself or others in the future. Occasionally, an external event will moti ...
Full Report ]]> http://www.hpl.hp.com/techreports/2012/HPL-2012-1.html?mtxs=rss-hpl-tr Sun, 22 Jan 2012 10:10:00 PST Type Classes of Context Trees - Martin, Alvaro; Seroussi, Gadiel; Weinberger, Marcelo J.
Keyword(s): context trees; method of types; enumeration; Markov chains; data compression
Abstract: It is well known that a tree model does not always admit a finite-state machine (FSM) representation with the same (minimal) number of parameters. Therefore, known characterizations of type classes for FSMs do not apply, in general, to tree models. In this paper, the type class of a sequence with re ...
Full Report ]]> http://www.hpl.hp.com/techreports/2012/HPL-2012-10.html?mtxs=rss-hpl-tr Sun, 22 Jan 2012 10:10:00 PST How To Track Your Data: The Case for Cloud Computing Provenance - Zhang, Olive Qing; Kirchberg, Markus; Ko, Ryan K L; Lee, Bu Sung
Keyword(s): cloud computing; data provenance; accountability; transparency;
Abstract: Provenance, a meta-data describing the derivation history of data, is crucial for the uptake of cloud computing to enhance reliability, credibility, accountability, transparency, and confidentiality of digital objects in a cloud. In this paper, we survey current mechanisms that support provenance fo ...
Full Report ]]> http://www.hpl.hp.com/techreports/2012/HPL-2012-11.html?mtxs=rss-hpl-tr Sun, 22 Jan 2012 10:10:00 PST Learning Aesthetics Measure of a Document Page Layout From Designers' Interaction - Ahmadullin, Ildus; Damera-Venkata, Niranjan;
Keyword(s): automated publishing; quantifying aesthetics; designer interaction; probabilistic modeling
Abstract: Aesthetics evaluation of a document layout is typically performed by a designer. Recently there has been proposed a number of automated systems for document creation. We present a new paradigm to automatically quantify document aesthetics, that can be used in the automated document composition techn ...
Full Report ]]> http://www.hpl.hp.com/techreports/2012/HPL-2012-13.html?mtxs=rss-hpl-tr Sun, 22 Jan 2012 10:10:00 PST Analysis and management of geometric distortions on multi-view displays with only horizontal parallax - Said, Amir; Culbertson, Bruce
Keyword(s): Light field display; multi-view display parallax
Abstract: Light field (multi-view) displays are often designed to support horizontal parallax only (HPO) since this significantly reduces complexity compared to full parallax, and is commonly assumed to only cause small losses in 3D perceptual quality. In reality all HPO displays can produce severe geometric ...
Full Report ]]> http://www.hpl.hp.com/techreports/2012/HPL-2012-2.html?mtxs=rss-hpl-tr Tue, 10 Jan 2012 10:10:00 PST Nanoimprint Lithography with <=60 nm Overlay Precision - Wu, Wei; Walmsley, Robert G.; Li, Wen-Di; Li, Xuema; Williams, R. Stanley
Keyword(s): nanoimprint; overlay; lithography
Abstract: Nanoimprint lithography (NIL) is a high-resolution, high-throughput and cost-effective nano-patterning technology. However, the overlay accuracy is lagging behind the resolution because of the high cost of mechanical precision. We have built an inexpensive stand-alone machine based on the wafer bowi ...
Full Report ]]> http://www.hpl.hp.com/techreports/2012/HPL-2012-6.html?mtxs=rss-hpl-tr Tue, 10 Jan 2012 10:10:00 PST 2012 Hewlett-Packard Development Company, L.P.