Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: A survey of performance enhancement of transmission control protocol (TCP) in wireless ad hoc networks
From one of the world?s foremost game designers comes a?book that contains a collection of newly-designed and field-tested games. Steve Sugar shows how, with practice and learning reinforcement, these dynamic games can enhance individual and team development in the areas of prioritizing, problem solving, decision-making, communication, and collaboration. A valuable Game-to-Outcome chart helps facilitators match the appropriate game to the desired learning outcome and intended audience.
Oracle Database Performance Tuning Guide is an aid for people responsible for the
operation, maintenance, and performance of Oracle. This book describes detailed
ways to enhance Oracle performance by writing and tuning SQL properly, using
performance tools, and optimizing instance performance. It also explains how to
create an initial database for good performance and includes performance-related
reference information. This book could be useful for database administrators,
application designers, and programmers.
The use of copper and its alloys by humans goes back thousands of years. Probably
copper is the most ancient metal extracted and processed by mankind. With good
strength and ductility, ease of processing and good availability, copper has been for
millennia an excellent material for creating objects, jewelry and tools of daily use or
components with high technological content.
To date, parsers have made limited use of semantic information, but there is evidence to suggest that semantic features can enhance parse disambiguation. This paper shows that semantic classes help to obtain signiﬁcant improvement in both parsing and PP attachment tasks. We devise a gold-standard sense- and parse tree-annotated dataset based on the intersection of the Penn Treebank and SemCor, and experiment with different approaches to both semantic representation and disambiguation. For the Bikel parser, we achieved a maximal error reduction rate over the baseline parser of 6.
Creating large amounts of annotated data to train statistical PCFG parsers is expensive, and the performance of such parsers declines when training and test data are taken from different domains. In this paper we use selftraining in order to improve the quality of a parser and to adapt it to a different domain, using only small amounts of manually annotated seed data. We report signiﬁcant improvement both when the seed and test data are in the same domain and in the outof-domain adaptation scenario. ...
This paper demonstrates that the use of ensemble methods and carefully calibrating the decision threshold can signiﬁcantly improve the performance of machine learning methods for morphological word decomposition. We employ two algorithms which come from a family of generative probabilistic models. The models consider segment boundaries as hidden variables and include probabilities for letter transitions within segments. The advantage of this model family is that it can learn from small datasets and easily generalises to larger datasets. ...
This paper describes how external resources can be used to improve parser performance for heavily lexicalised grammars, looking at both robustness and efﬁciency. In terms of robustness, we try using different types of external data to increase lexical coverage, and ﬁnd that simple POS tags have the most effect, increasing coverage on unseen data by up to 45%. We also show that ﬁltering lexical items in a supertagging manner is very effective in increasing efﬁciency.
Word and n-gram posterior probabilities estimated on N-best hypotheses have been used to improve the performance of statistical machine translation (SMT) in a rescoring framework. In this paper, we extend the idea to estimate the posterior probabilities on N-best hypotheses for translation phrase-pairs, target language n-grams, and source word reorderings. The SMT system is self-enhanced with the posterior knowledge learned from Nbest hypotheses in a re-decoding framework.
This course will provide a continuation of calli-
graphic skills, as well as help the beginner to con-
tinue to develop skills. Designed to open up new
applications for personalized calligraphy, the
course will focus on enjoyable and creative projects
that develop and enhance skills. Also included will
be demonstration on flourishing and decorative
techniques to further enhance your work. The ba-
sic style of calligraphy will be italic but other styles
will be introduced as time allows. Prerequisite: Be-
ginning class or instructor’s permission. Fee: $165...
As internetworks grew in scale and diversity in the early 1990s, new routing protocols were
needed. Cisco developed
Enhanced Interior Gateway Routing Protocol (IGRP)
to address many of the limitations of IGRP and RIP. As WANs were growing, so was the
need for a routing protocol that would use efficient address space on WAN links, as well as
the LAN networks. OSPF was available, but the CPU-intensive tasks that it had to perform
often overloaded the small processors of many edge or remote routers of that time. The configuration
was also more complex than that of RIP or IGRP.
Grid Networks describes the convergence of advanced networking technologies and Grid technologies, with special focus on their symbiotic relationship and the resulting new opportunities. Grid technology is applicable to many implementations, Computational Grids, Data Grids, Service Grids, and Instrumentation Grids.
The authors cover a breadth of topics including recent research, featuring both theoretical concepts and empirical results. Beginning with an overview of Grid technologies, an analysis of distinguishing use cases and architectural attributes, and emerging standards.
CHAPTER 19 CTA Strategies for Returns Enhancing Diversification. In this chapter, we analyze the risk and performance characteristics of different strategies involving the trading of commodity futures, financial futures, and options on futures employed by CTAs.
Fuzzy control theory is an emerging area of research. At the core of many engineering problems is the problem of control of different systems. These systems range all the way from classical inverted pendulum to auto-focusing system of a digital camera. Fuzzy control systems have demonstrated their enhanced performance in all these areas.
We’ve designed this book to show you how to write professional applications using Microsoft
As software developers, we understand how difficult it is to develop software in real life. End
users expect their applications to be reliable, functional, and polished. They’ll also have preferences in
terms of how they want their application to look and feel.
To help you meet these real-life expectations, we’ve focused this book on many of the typical
scenarios that customers or clients will ask of you.
You are going to love this book! I know I do, and I had to read every word of it and check
every line of code, twice!!
If you’re like me, you’ve registered as an iPhone developer with Apple, read some documentation,
and sought help in taking the next bold step. Perhaps you’ve picked up “Beginning
iPhone Development,” dutifully working through all of the projects, and you understood
most of it. If not, I heartily recommend it. The book is great because it gently guides you
through many of the technologies that make up an iPhone application.
How Direct Expansion Air-Conditioning Achieves Performance Goals For most of the A / C market, refrigeration-based ( DX ) cooling is the standard, and provides a point of comparison for new technologies. To describe the benefits and improvements of DEVap A / C technology, we must discuss standard A / C. Standard A / C reacts to SHR by cooling the air sensibly and, if dehumidification is required, by cooling the air below the dew point.
You can enhance Oracle performance by adjusting database applications, the database
itself, and the operating system. Making such adjustments is known as tuning.
Proper tuning of Oracle provides the best possible database performance for your
specific application and hardware configuration.
Note: Oracle8 Tuning contains information that describes the features and functionality
of the Oracle8 and the Oracle8 Enterprise Edition products. Oracle8 and
Oracle8 Enterprise Edition have the same basic features.