نتایج جستجو برای: freq
تعداد نتایج: 234 فیلتر نتایج به سال:
G uttura l pou ch mycosis In the hor se is a pseudo-membran ous inflammat ion of the di vertieula of the Eustac hian tub es usually caused by Aspergillus species.J.9 Inflammatory changes mostly occur in the dorsal part of the caudo medial co m partme nt of the gutt ural pouch. Th ey frequently ero de the intern al caro tid art ery,"? which passes with the superio r cerv ical ganglion, vaga l, a...
ACID-BASE DERANGEMENTS are frequently encountered in surgical patients, preoperatively, during the surgical procedure, and postoperatively. For some time surgeons and anaesthetists have concerned themselves with the control of these changes, and more recently the postoperative period has come under close scrutiny as regards acidosis and decreased arterial saturation. 1,~ The advent of open-hear...
Shannon (1948) showed that a wide range of practical problems can be reduced to the problem of estimating probability distributions of words and ngrams in text. It has become standard practice in text compression, speech recognition, information retrieval and many other applications of Shannon’s theory to introduce a ‘‘bag-of-words’’ assumption. But obviously, word rates vary from genre to genr...
Weighted Probability Distribution Voting (WPDV) is a newly designed machine learning algorithm, for which research is currently aimed at the determination of good weighting schemes. This paper describes a simple yet eeective weight determination procedure, which leads to models that can produce competitive results for a number of NLP classiication tasks. 1 The WPDV algorithm Weighted Probabilit...
A leading theory for the origin of modern humans, the 'recent African origin' (RAO) model [1], postulates that the ancestors of all modern humans originated in East Africa and that, around 100,000 years ago, some modern humans left the African continent and subsequently colonised the entire world, displacing previously established human species such as Neanderthals in Europe [2,3]. This scenari...
Shannon (1948) showed that a wide range of practical problems can be reduced to the problem of estimating probability distributions of words and ngrams in text. It has become standard practice in text compression, speech recognition, information retrieval and many other applications of Shannon’s theory to introduce a ‘‘bag-of-words’’ assumption. But obviously, word rates vary from genre to genr...
جهت ارزیابی عملکرد هورمون gnrh بر باروری میش ماکوئی در فصل تولید مثل، تعداد 226 رأس گوسفند ماکوئی با استفاده از سیدر( یک دوره 14 روزه) و تزریق هورمون pmsg همزمان سازی فحلی شدند. 48 ساعت بعد از تزریق pmsg همه میش ها با اسپرم تازه تلقیح مصنوعی شدند. 60 رأس از میش ها به سه دسته 20 رأسی تقسیم و به عنوان گروه شاهد در نظر گرفته شدند. زیر گروه های شاهد با حروف a و b و c مشخص شدند و هورمون gnrh دریافت ...
چکیده پایان نامه شیمی محاسباتی با به کاربردن نرم افزارهای کامپیوتری ابزاری قدرتمند در طراحی مولکولهایی با خواص ویژه است.شیمی محاسباتی عبارتی عمومی و کلی است که گستره وسیعی از روش هاو تقریب هارا دربر میگیرد وبا استفاده از قوانین ریاضی و تئوری به حل مسائل شیمی می پردازد.امروزه روش های محاسبات مکانیک کوانتومی به عنوان ابزاری مهم در پژوهش های مربوط به علم شیمی به شمار می آیند زیرا توانایی محاسب...
Soil moisture plays a critical role in the surface energy balance at the soil-atmosphere interface [4]. Using radar backscattering to retrieve soil moisture is a method of major concern due to its sensitivity to soil moisture [14] [15].In the past decades, many empirical, semi-empirical and physical models that relate the measured 0 to volumetric soil moisture mv have been carried out[14][15]. ...
In this paper, we describe ROOT13, a supervised system for the classification of hypernyms, co-hyponyms and random words. The system relies on a Random Forest algorithm and 13 unsupervised corpus-based features. We evaluate it with a 10-fold cross validation on 9,600 pairs, equally distributed among the three classes and involving several Parts-OfSpeech (i.e. adjectives, nouns and verbs). When ...
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