نتایج جستجو برای: online systems

تعداد نتایج: 1405390  

2016
Liang Cheng Yue Jiang Zhenzhen Wang Hongbo Shi Jie Sun Haixiu Yang Shuo Zhang Yang Hu Meng Zhou

The similarity of pair-wise diseases reveals the molecular relationships between them. For example, similar diseases have the potential to be treated by common therapeutic chemicals (TCs). In this paper, we introduced DisSim, an online system for exploring similar diseases, and comparing corresponding TCs. Currently, DisSim implemented five state-of-the-art methods to measure the similarity bet...

Journal: :journal of ai and data mining 2016
y. vaghei a. farshidianfar

in recent years, underactuated nonlinear dynamic systems trajectory tracking, such as space robots and manipulators with structural flexibility, has become a major field of interest due to the complexity and high computational load of these systems. hierarchical sliding mode control has been investigated recently for these systems; however, the instability phenomena will possibly occur, especia...

Journal: :مهندسی صنایع 0
عباس کرامتی دانشیار دانشکدة مهندسی صنایع پردیس دانشکده های فنی دانشگاه تهران روشنک خالقی کارشناس ارشد مهندسی صنایع پردیس دانشکده های فنی دانشگاه تهرانن

the rapid growth of world wide web has affected the nature of interactions between customers and companies enormously. one significant consequence of this phenomenon is definitely the emergence and development of e-commerce websites and online stores all over the web. in spite of its great benefits, online shopping could turn into a complicated procedure from the customer point of view. in most...

2005
Bart Mellebeek Anna Khasin Karolina Owczarzak Josef Van Genabith Andy Way

In (Mellebeek et al., 2005), we proposed the design, implementation and evaluation of a novel and modular approach to boost the translation performance of existing, wide-coverage, freely available machine translation systems, based on reliable and fast automatic decomposition of the translation input and corresponding composition of translation output. Despite showing some initial promise, our ...

2007
Raghu Ramakrishnan

Online communities are a fundamental and increasingly important part of the Web. Sites such as Y! Answers, flickr, MySpace, and YouTube are well-known examples. Further, online applications in diverse domains increasingly incorporate community tools, and the richness of the baseline community offerings is growing rapidly. We routinely see bulletin boards with presence and realtime chat, rating ...

Journal: :IEEE Design & Test of Computers 1998
Hussain Al-Asaad Brian T. Murray John P. Hayes

0740-7475/98/$10.00 © 1998 IEEE 17 EMBEDDED SYSTEMS are computers incorporated in consumer products or other devices to perform application-specific functions. The product user is usually not even aware of the existence of these systems. From toys to medical devices, from ovens to automobiles, the range of products incorporating microprocessor-based, softwarecontrolled systems has expanded rapi...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه مازندران - دانشکده فنی و مهندسی 1389

کنترل نویز به روش فعال (anc) تکنیکی است که نویز هایی با فرکانس پایین را به طور موثر کاهش می دهد.در این سیستم از فیلتر های وفقی به منظور تولید سیگنال ضد نویز استفاده می شود . یکی از الگوریتمهای وفقی که در سیستم anc مورد استفاده قرار می گیرد الگوریتم least mean square(lms) می باشد.اما به دلیل تاخیری که مسیر ثانویه ناشی از ادوات الکترونیکی ومسیر عبور سیگنال در این سیستم ایجاد می کند، سبب می شود که...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده علوم 0

تا بحال طیف سنجی نوترونهای سریع به صورت offline انجام می گرفته که محققین و پزشکان را با مشکلات زیادی مواجه می کرد، چرا اولا سیستم خاصیت برگشت پذیری نداشته و ثالثا زمان زیادی برای بدست آوردن طیف انرژی لازم بود. طراحی سیستم offline به این صورت است که بعد از آشکارساز باید از یک سیستم جداسازی نوترون و کاما استفاده کرد که معمولا از روش کسر ثابت یا گذر از صفر برای این منظور استفاده می شود (که روشهای ...

2011
Jens Witkowski

Almost every e-commerce site employs a so-called reputation mechanism that collects and publishes ratings from its users which then allow other market participants to make betterinformed choices. It is instructive to distinguish between two kinds of reputation mechanisms in accordance with the problems they address: those that are employed by online opinion forums, such as Amazon Reviews, are b...

Journal: :international journal of information science and management 0
ching-chuan lin department of business administration national chiayi university chiayi te-king chien department of information management national formosa university yunlin

recently, internet is widely used in our daily life, caused online customer growing rapidly, then the amount of online store rising quickly. therefore, it is an important issue for online stores to stand out from the crowd, even boost sales and profit. many enterprises had invested resource on online store, but great amount of stores were closedown. the major reason is operator spend many effor...

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