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4,335
Zero-forcing methods for downlink spatial multiplexing in multiuser MIMO channels
- IEEE TRANS. SIGNAL PROCESSING
, 2004
"... The use of space-division multiple access (SDMA) in the downlink of a multiuser multiple-input, multiple-output (MIMO) wireless communications network can provide a substantial gain in system throughput. The challenge in such multiuser systems is designing transmit vectors while considering the co-c ..."
Abstract
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Cited by 371 (29 self)
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-channel interference of other users. Typical optimization problems of interest include the capacity problem—maximizing the sum information rate subject to a power constraint—or the power control problem—minimizing transmitted power such that a certain quality-of-service metric for each user is met. Neither
The End-to-End Effects of Internet Path Selection
- IN PROCEEDINGS OF ACM SIGCOMM
, 1999
"... The path taken by a packet traveling across the Internet depends on a large number of factors, including routing protocols and pernetwork routing policies. The impact of these factors on the endto -end performance experienced by users is poorly understood. In this paper, we conduct a measurement-bas ..."
Abstract
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Cited by 307 (10 self)
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, taken between pairs of geographically diverse Internet hosts. We construct the set of potential alternate paths by composing these measurements to form new synthetic paths. We find that in 30-80% of the cases, there is an alternate path with significantly superior quality. We argue that the overall
Support Vector Machines for Classification and Regression
- UNIVERSITY OF SOUTHAMPTON, TECHNICAL REPORT
, 1998
"... The problem of empirical data modelling is germane to many engineering applications.
In empirical data modelling a process of induction is used to build up a model of the
system, from which it is hoped to deduce responses of the system that have yet to be observed.
Ultimately the quantity and qualit ..."
Abstract
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Cited by 357 (5 self)
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and quality of the observations govern the performance
of this empirical model. By its observational nature data obtained is finite and sampled;
typically this sampling is non-uniform and due to the high dimensional nature of the
problem the data will form only a sparse distribution in the input space
Oxone: A Scalable Solution for Detecting Superior Quality Deltas on Ordered Large XML Documents
- In ER
, 2006
"... Abstract. Recently, a number of relational-based approaches for detecting the changes to XML data have been proposed to address the scalability problem of main memory-based approaches (e.g., X-Diff, XyDiff). These approaches store the XML documents in the relational database and issue SQL queries (w ..."
Abstract
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Cited by 1 (1 self)
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to XyDiff for larger datasets and has much superior the result quality of deltas than XyDiff. 1
The JPEG2000 Still Image Coding System: an Overview
, 2000
"... With the increasing use of multimedia technologies, image compression requires higher performance as well as new features. To address this need in the specific area of still image encoding, a new standard is currently being developed, the JPEC2000. It is not only intended to provide rate-distortion ..."
Abstract
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Cited by 259 (2 self)
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-distortion and subjective image quality performance superior to existing standards, but also to provide features and functionalities that current standards can either not address efficiently or in many cases cannot address at all. Lossless and lossy compression, embedded lossy to lossless coding, progressive transmission
To deliver superior quality, manyorganizations have made commit- ments to initiatives on the Software Engineering Institute’s (SEI) Capability Maturity Model ® (CMM®), ISO 9001, or
"... Managers are interested in knowing the return on investment to be derived from software process improvement actions. The software inspection process gathers some of the data needed to determine this [1]. Software inspections are structured to serve the needs of qual-ity management in verifying that ..."
Abstract
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Managers are interested in knowing the return on investment to be derived from software process improvement actions. The software inspection process gathers some of the data needed to determine this [1]. Software inspections are structured to serve the needs of qual-ity management in verifying
The investment model scale: Measuring commitment level, satisfaction level, quality of alternatives, and investment size
- Personal Relationships
, 1998
"... Three studies evaluated the reliability and validity of the Investment Model Scale, an instrument designed to measure four constructs, including commitment level and three bases of dependence-satisfaction level, quality of alternatives, and investment size. In all three studies, reliability analyses ..."
Abstract
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Cited by 206 (13 self)
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of model variables with instruments measuring diverse qualities of relationships and assorted personal dispositions. As anticipated, Investment Model variables were moderately associated with other measures reflecting superior couple functioning (e.g., dyadic adjustment, trust level, inclusion of other
The consistently superior quality of carrots from one organic farm in Austria compared with conventional farms. 15th IFOAM Organic World Congress "Researching and Shaping Sustainable Systems
, 2005
"... The aim of this 5 year investigation was to compare quality parameters of differently cultivated carrots of the same cultivar grown in the same region as well as to compare the relevance of different methods of analysis to differentiate between these products. The following quality tests were applie ..."
Abstract
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Cited by 2 (0 self)
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The aim of this 5 year investigation was to compare quality parameters of differently cultivated carrots of the same cultivar grown in the same region as well as to compare the relevance of different methods of analysis to differentiate between these products. The following quality tests were
Impact of similarity measures on web-page clustering,”
- in Workshop on Artificial Intelligence for Web Search (AAAI
, 2000
"... Abstract Clustering of web documents enables (semi-)automated categorization, and facilitates certain types of search. Any clustering method has to embed the documents in a suitable similarity space. While several clustering methods and the associated similarity measures have been proposed in the p ..."
Abstract
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Cited by 205 (26 self)
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in the past, there is no systematic comparative study of the impact of similarity metrics on cluster quality, possibly because the popular cost criteria do not readily translate across qualitatively different metrics. We observe that in domains such as YA-HOO that provide a categorization by human experts, a
Results 1 - 10
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