ppxscal/embedding_network huggingface dataset:
Orthogonal rendezvous routing protocol for wireless mesh networks
Authors: Bow-Nan Cheng, Murat Yuksel, Shivkumar Kalyanaraman
Venue: IEEE/ACM Transactions on Networking (TON) (2009)

Routing in multi-hop wireless networks involves the indirection from a persistent name (or ID) to a locator. Concepts such as coordinate space embedding help reduce the number and dynamism complexity of bindings and state needed for this indirection. Routing protocols which do not use such concepts often tend to flood packets during route discovery or dissemination, and hence have limited scalability. In this paper, we introduce Orthogonal Rendezvous Routing Protocol (ORRP) for meshed wireless networks. ORRP is a lightweight-but-scalable routing protocol utilizing directional communications (such as directional antennas or free-space-optical transceivers) to relax information requirements such as coordinate space embedding and node localization. The ORRP source and ORRP destination send route discovery and route dissemination packets respectively in locally-chosen orthogonal directions. Connectivity happens when these paths intersect (i.e., rendezvous). We show that ORRP achieves connectivity with high probability even in sparse networks with voids. ORRP scales well without imposing DHT-like graph structures (eg: trees, rings, torus etc). The total state information required is O(N3/2 for N-node networks, and the state is uniformly distributed. ORRP does not resort to flooding either in route discovery or dissemination. The price paid by ORRP is suboptimality in terms of path stretch compared to the shortest path; however we characterize the average penalty and find that it is not severe.
Homomorphic MACs: MAC-Based Integrity for Network Coding
Authors: Shweta Agrawal, Dan Boneh
Venue: Proceedings of the 7th International Conference on Applied Cryptography and Network Security (2009)

Network coding has been shown to improve the capacity and robustness in networks. However, since intermediate nodes modify packets en-route, integrity of data cannot be checked using traditional MACs and checksums. In addition, network coded systems are vulnerable to pollution attacks where a single malicious node can flood the network with bad packets and prevent the receiver from decoding the packets correctly. Signature schemes have been proposed to thwart such attacks, but they tend to be too slow for online per-packet integrity.Here we propose a homomorphic MAC which allows checking the integrity of network coded data. Our homomorphic MAC is designed as a drop-in replacement for traditional MACs (such as HMAC) in systems using network coding.
Improved ambiguity resolution by an equatorial ionospheric differential correction for precise positioning
Authors: Norsuzila YaAcob, Mardina Abdullah, Mahamod Ismail, Azami Zaharim
Venue: Proceedings of the 13th WSEAS international conference on Applied mathematics (2008)

Resolving the initial phase ambiguities of GPS carrier phase observations has always been considered an important aspect of GPS processing techniques. The influence of the ionosphere is one of the main problems in ambiguity resolution for carrier phase. In this study we are reviewing the ambiguity resolution problem under the new aspect of using ionospheric models over equatorial region for single frequency over short baseline distance. From the model, we can get differential ionospheric delay in subcentimetre accuracy. This can also be used by a single frequency receivers for a short time in short baselines. Findings show improvements in the correction of the differential ionospheric error over short baselines. The ambiguities were resolved when the variance ratio increased and the reference variances decreased.
Feature hashing for large scale multitask learning
Authors: Kilian Weinberger, Anirban Dasgupta, John Langford, Alex Smola, Josh Attenberg
Venue: Proceedings of the 26th Annual International Conference on Machine Learning (2009)

Empirical evidence suggests that hashing is an effective strategy for dimensionality reduction and practical nonparametric estimation. In this paper we provide exponential tail bounds for feature hashing and show that the interaction between random subspaces is negligible with high probability. We demonstrate the feasibility of this approach with experimental results for a new use case --- multitask learning with hundreds of thousands of tasks.
Decommitting in multi-agent execution in non-deterministic environment: experimental approach
Authors: Jiří Vokřínek, Antonín Komenda, Michal Pěchouček
Venue: Proceedings of The 8th International Conference on Autonomous Agents and Multiagent Systems - Volume 2 (2009)

The process of planning in complex, multi-actor environment depends strongly on the ability of the individual actors to perform intelligent decommitment upon specific changes in the environment. Reasoning about decommitment alternatives during the planning process contributes to flexibility and robustness of the resulting plan. In this article we formally introduce and discuss three specific decommitment rules: (i) relaxation, (ii) delegation and (iii) full decommitment. We argue that appropriate selection, setting and preference ordering of the decommitment rules contributes to robustness (measured as a number of failures) of the overall plans. The presented claims are supported by empirical experiments.
A Semantic-Based Solution for UBL Schema Interoperability
Authors: Yalin Yarimagan, Asuman Dogac
Venue: IEEE Internet Computing (2009)

The Universal Business Language (UBL) is an initiative to develop common business document schemas for interoperability. However, businesses operate in different industry, geopolitical, and regulatory contexts and have different rules and requirements for the information they exchange. So, several trading communities are tailoring UBL schemas to their needs, requiring that these schemas translate to each other. In this article, the authors describe how to enhance UBL with semantics-based translation mechanisms to maintain interoperability between documents conforming to different schema versions.
The Association between Hospital Ownership and Technical Efficiency in a Managed Care Environment
Authors: Keon-Hyung Lee, Seung-Bum Yang, Mankyu Choi
Venue: Journal of Medical Systems (2009)

This study assessed the association between hospital ownership and technical efficiency in a managed care environment. Hospital technical efficiency scores were calculated via the data envelopment analysis (DEA) method, employing four input variables and three output variables from the American Hospital Association Hospital Survey Data for acute care general hospitals in Florida. By utilizing the hospital technical efficiency scores as a dependent variable, we determined that non-profit hospitals were more efficient than for-profit hospitals for all 4 years examined in this study. In particular, for-profit hospitals with between 100 and 249 beds and those with more than 400 beds had lower technical efficiency scores as compared to their nonprofit peers. Another finding was that teaching hospitals were more efficient than non-teaching hospitals in 2001---2003, but not in 2004. Those variables associated with managed care, namely "number of HMO contracts" and "contracted with HMO", however, were not shown to be statistically significant.
Navigating Giga-Graphs
Authors: James Abello, Jeffrey Korn, Matthias Kreuseler
Venue: Proceedings of the working conference on Advanced visual interfaces (2002)

An effective way to process a graph that does not fit in RAM is to build a hierarchical partition of its set of vertices. This hierarchy induces a partition of the graph edge set. We use this partition to produce a macro view of the graph. A screen embedding of this macro view is a Graph Sketch. We describe the use of Rectangular FishEye Views to provide drill-down navigation of graph sketches at different levels of detail including the graph edges data. A higher level of detail of a sketch focus area is obtained by distorting the lower detail context. Alternative visual representations can be used at different sketch hierarchy levels. We provide two sketch screen embeddings. One is tree-map based and the other is obtained by a special sequence of graph edge contractions. We demonstrate the application of our current Unix/Windows prototype to telecommunication graphs with edge sets ranging from 100 million to 1 billion edges(Giga-Graphs). To our knowledge this is the first time that focus within context techniques have been used successfully for the navigation of external memory graphs.
Characterization of Post-infarct Scars in a Porcine Model --- A Combined Experimental and Theoretical Study
Authors: Mihaela Pop, Maxime Sermesant, Tommaso Mansi, Eugene Crystal, Jay Detsky, Yuesong Yang, Paul Fefer, Elliot R. Mcveigh, Alexander Dick, Nicholas Ayache, Graham A. Wright
Venue: Proceedings of the 5th International Conference on Functional Imaging and Modeling of the Heart (2009)

Arrhythmias are often associated with healing infarcts and could arise from the border zone of the scars. The main purpose of this work was to characterize the infarct scars using in vivo electro-anatomic CARTO maps (recorded in sinus rhythm) and high-resolution ex-vivo MR images in a porcine model of chronic infarct. The MR images were segmented into scar, peri-infarct and healthy ventricular tissue, and, in select slices, the results of segmentation were validated against histology. Further, the segmented volumes and associated fiber directions (derived from diffusion-weighted (DW) MRI as well as from synthetic models), were used as input to a simple two-variable mathematical model that calculates the propagation of depolarization waves and isochronal maps; and these isochronal maps were compared to the measured ones. We further correlated the size of the scar measured during the electrophysiology (EP) study with scar dimensions obtained from MRI using ex-vivo DW-MRI methods. Finally, we present preliminary results from a qualitative comparison between the scar delineation from ex vivo and in vivo MR images.
Programmable queries, or a new design of earch tools
Authors: Toshihiro Kamiya
Venue: Proceedings of the 2009 ICSE Workshop on Search-Driven Development-Users, Infrastructure, Tools and Evaluation (2009)

This paper presents a novel design of search tools in reverse engineering, which enables describing core searching tasks (such as pattern searching, extraction, filtering, etc.) in a separated way from the management task of location data (such as line number or file name). By using example programs with a prototype implementation, we explain how the proposed design differs from a traditional design, and how the programs help the implementation of customizable tools.
A technique for retrospective computer validation of drug manufacturing software
Authors: Masakazu Takahashi
Venue: International Journal of Computer Applications in Technology (2009)

This paper proposes a technique for validating that in-service Drug Manufacturing Software (DMSW) is adequate. This technique is called Retrospective Computer Validation (RCV). When conducting RCV for the first time, one validates the adequacy of DMSW's functions and performance by collecting existing documents and operational records. When we use RCV-conducted DMSW, some modifications occur. In this case, modification of documents and enforcement of additional tests are required. However, it is difficult to secure consistency between existing and newly developed documents and to conduct exhaustive tests of areas affected by modifications. This paper proposes the following solutions: preparation of document architecture, definition of document templates, management of design information using database, establishment of a technique for identifying and testing the range of DMSW affected by modified parts and definition of RCV procedure. As a result, we can conduct adequate RCV and prove that the DMSW is of a high enough quality for manufacturing drugs.
Starting Out with Programming Logic and Design, 1st edition
Authors: Tony Gaddis
Venue:  (2007)

Starting Out with Programming Logic and Design is a language-independent introductory programming book that orients students to programming concepts and logic without assuming any previous programming experience. In the successful, accessible style of Tony Gaddis' best-selling texts, useful examples and detail-oriented explanations allow students to become comfortable with fundamental concepts and logical thought processes used in programming without the complication of language syntax. Students gain confidence in their program design skills to transition into more comprehensive programming courses. The book is ideal for a programming logic course taught as a precursor to a language-specific introductory programming course, or for the first part of an introductory programming course. The ACM Portal is published by the Association for Computing Machinery. Copyright © 2010 ACM, Inc. Terms of Usage Privacy Policy Code of Ethics Contact Us Useful downloads: Adobe Acrobat QuickTime Windows Media Player Real Player
Qos-based design method for constraint device based applications
Authors: Christine Louberry, Philippe Roose, Marc Dalmau
Venue: Proceedings of the 4th international workshop on Services integration in pervasive environments (2009)

We are currently facing with an important evolution in communication area. People use more and more some mobile and tiny devices to interact with their favourite services. However, these devices have resource constraints which are necessary to be aware in order to offer effective applications in terms of quality and lifetime. In this article we propose a design method allowing to manage constraint and particularities of such devices to react to context evolution with reconfiguration reflecting quality and sustainability of the deployed solution
Query-based opinion summarization for legal blog entries
Authors: Jack G. Conrad, Jochen L. Leidner, Frank Schilder, Ravi Kondadadi
Venue: Proceedings of the 12th International Conference on Artificial Intelligence and Law (2009)

We present the first report of automatic sentiment summarization in the legal domain. This work is based on processing a set of legal questions with a system consisting of a semi-automatic Web blog search module and FastSum, a fully automatic extractive multi-document sentiment summarization system. We provide quantitative evaluation results of the summaries using legal expert reviewers. We report baseline evaluation results for query-based sentiment summarization for legal blogs: on a five-point scale, average responsiveness and linguistic quality are slightly higher than 2 (with human inter-rater agreement at k = 0.75). To the best of our knowledge, this is the first evaluation of sentiment summarization in the legal blogosphere.
Performances characteristics of gyrators structured on operational amplifier
Authors: Dan George Tont, Gabriela Tont, Luige Vladareanu, Mihaiela Iliescu
Venue: Proceedings of the 10th WSEAS international conference on Mathematical and computational methods in science and engineering (2008)

The gyrator equations express the instantaneous behavior of switching power converters, averaged over one switching cycle. Any dc-dc switching power converter meet the requirements of closed-loop control of output voltage or current. There are many ways to design a physical system with gyrator behavior like. Some gyrators are based on various physical effects, like the Hall-effect, other gyrators are created using electronically devices, like operational amplifiers. All these synthesis operate time-continuously. The paper approaches some aspects regarding performances characteristics of gyrators with different circuit topology. The gyrators behavior of a class of two-ports structured on operational amplifiers and resistors is studied. In order to verify the theoretical predictions the analytical quadripolar parameters are bridged with the experimental one numerical by the means of a Pspice simulation.
Atomistic model structure of the Ge(100)-GeO2 interface
Authors: Peter Broqvist, Jan Felix Binder, Alfredo Pasquarello
Venue: Microelectronic Engineering (2009)

An atomistic model of the Ge-GeO"2 interface has been generated through first-principle methods based on density functional theory. The interface model consists of amorphous GeO"2 connected to crystalline Ge through a substoichiometric oxide region showing regular structural parameters. Structural and electronic properties are compared to available experimental data and studied as they evolve across the Ge-GeO"2 interface.
RPG Programming with XNA Game Studio 3.0
Authors: James Perry
Venue:  (2009)

This book provides detailed information on role-playing games and how to create them using Microsoft's XNA Game Studio 3.0.
Enabling scalable self-management for enterprise-scale systems
Authors: Karsten Schwan
Venue:  (2008)

Implementing self-management for enterprise systems is difficult. First, the scale and complexity of such systems makes it hard to understand and interpret system behavior or worse, the root causes of certain behaviors. Second, it is not clear how the goals specified at a system-level translate to component-level actions that drive the system. Third, the dynamic environments in which such systems operate requires self-management techniques that not only adapt the system but also adapt their own decision making processes. Finally, to build a self-management solution that is acceptable to administrators, it should have the properties of tractability and trust, which allow an administrator to both understand and fine-tune self-management actions. This dissertation work introduces, implements, and evaluates iManage, a novel system state-space based framework for enabling self-management of enterprise-scale systems. The system state-space, in iManage, is defined to be a collection of monitored system parameters and metrics (termed system variables). In addition, from amongst the system variables, it identifies the variables of interest, which determine the operational status of a system, and the controllable variables, which are the ones that can be deterministically modified to affect the operational status of a system. Using this formal representation, we have developed and integrated into iManage techniques that establish a probabilistic model relating the variables of interest and the controllable variables under the prevailing operational conditions. Such models are then used by iManage to determine corrective actions in case of SLA violations and/or to determine per-component ranges for controllable variables, which if independently adhered to by each component, lead to SLA compliance. To address the issue of scale in determining system models, iManage makes use of a novel state-space partitioning scheme that partitions the state-space into smaller sub-spaces thereby allowing us to more precisely model the critical system aspects. Our chosen modeling techniques are such that the generated models can be easily understood and modified by the administrator. Furthermore, iManage associates each proposed self-management action with a confidence-attribute that determines whether the action in question merits autonomic enforcement or not.
Building capacities in human language technology for African languages
Authors: Tunde Adegbola
Venue: Proceedings of the First Workshop on Language Technologies for African Languages (2009)

The development of Human Language Technology (HLT) is one of the important by-products of the information revolution. However, the level of knowledge and skills in HLT for African languages remain unfortunately low as most scholars continue to work within the frameworks of knowledge production for an industrial society while the information age dawns. This paper reports the work of African Languages Technology Initiative (Alt-i) over a five-year period, and thereby presents a proposal for the acceleration of the development of knowledge and skills in HLT for African languages.
Scott Kelby's 7-Point System for Adobe Photoshop CS3, 1st edition
Authors: Scott Kelby
Venue:  (2007)

Scott Kelby, the world's #1 bestselling Photoshop author, and the man who changed the Photoshop and digital photography world with his ground-breaking, award-winning "Photoshop Book for Digital Photographers" unveils a exciting, brand new way of thinking, and working in Adobe Photoshop that will not only change the industry again, but it will change the way we all work in Photoshop forever, so we can finally spend less time fixing our images, and more time finishing them.You're about to become a Photoshop Shark!Scott has focused in and really narrowed things down to just exactly which Photoshop tools and techniques we absolutely, positively have to know, and he found that there are just seven major tools, seven major features that we have to master to enhance our images like a pro. But then he took it a step further. Out of those seven major tools, he looked at which parts or sections of those tools do we really need to master, and which parts can we pretty much ignore (in other words, he whittled it down so you're not learning parts of the tools that you're probably never going to need). Then, and perhaps most importantly, he determined exactly when and in which order to apply these seven techniques that make up Scott's amazing "Photoshop Seven Point System."But the magic of this book, is not just listing the seven tools and showing how they work. It's how they're used together, and how Scott teaches them (and makes it stick), that makes this book so unique. You're not going to just learn one technique for fixing shadows, and another technique for adjusting color (every Photoshop book pretty much does that, right?). Instead, you're going start off at square one, from scratch, as each chapter is just one photoone projectone challenging lifeless image (you'll follow along using his the same images), and you're going to unleash these seven tools, in a very specific way, and you're going to do it again, and again, and again, in order on different photos, in different situations, until they are absolutely second nature. You're finally going to do the FULL fixfrom beginning to endwith nothing left out, and once you learn these seven very specific techniques, and apply them in order, there won't be a an image that appears on your screen that you won't be able to enhance, fix, edit, and finish yourself!Plus, Scott's techniques work across a wide range of photos, and that's exactly what you'll be working on in the book, from landscapes to portraits, to architectural, to nature, from event photography to everything in betweenthere isn't a photo you won't be able to beat!This is the book you've been waiting for, the industry's been waiting for, and Scott's "Adobe Photoshop Seven Point System" is so revolutionary that he's officially applied for a patent with the U.S. Patent and Trademark Office, and this new system is only found in this amazing, ground breaking new book. Once you learn these techniques, and start applying them yourself, you'll be the next one to say"You can't beat 'The System!'
Concept Mining with Self-Organizing Maps for the Semantic Web
Authors: Timo Honkela, Matti Pöllä
Venue: Proceedings of the 7th International Workshop on Advances in Self-Organizing Maps (2009)

In this paper, we discuss problems related to the basic Semantic Web methodologies that are based on predicate logic and related formalisms. We discuss complementary and alternative approaches. In particular, we suggest how the Self-Organizing Map can be a basis for making the Semantic Web more semantic.