Xem 1-20 trên 132 kết quả General observations
  • An algorithm based on the Generalized Hebbian Algorithm is described that allows the singular value decomposition of a dataset to be learned based on single observation pairs presented serially. The algorithm has minimal memory requirements, and is therefore interesting in the natural language domain, where very large datasets are often used, and datasets quickly become intractable. The technique is demonstrated on the task of learning word and letter bigram pairs from text.

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  • Existing work in the extraction of commonsense knowledge from text has been primarily restricted to factoids that serve as statements about what may possibly obtain in the world. We present an approach to deriving stronger, more general claims by abstracting over large sets of factoids. Our goal is to coalesce the observed nominals for a given predicate argument into a few predominant types, obtained as WordNet synsets. The results can be construed as generically quantified sentences restricting the semantic type of an argument position of a predicate....

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  • Although in some respects more technical in their subjects and style than Darwin's "Journal," the books here reprinted will never lose their value and interest for the originality of the observations they contain. Many parts of them are admirably adapted for giving an insight into problems regarding the structure and changes of the earth's surface, and in fact they form a charming introduction to physical geology and physiography in their application to special domains.

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  • C H A P T E R T W E N T Y - F I V E Urban Labor Economic Theory 25.1 INTRODUCTION In the United States, it is generally observed that unemployment is unevenly distributed both within and between metropolitan areas. In particular, in most cities, the unemployment rate is nearly twice as high downtown as in the suburbs

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  • The rock mass around an underground opening is subjected to a unique stress path that results in low radial confinement and both tangential loading and unloading conditions near the wall. As a result, the rock mass strength near underground excavations is controlled by failure mechanisms dominating at low confinement. Hence, when constructing underground works in hard rock, two general scenarios are encountered: (1) structurally controlled gravity-driven failures; and (2) stress-induced failure with spalling and slabbing....

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  • Satellite altimetry was developed in the 1960s soon after the flight of artificial satellites became a reality. From the vantage point in space, a radar altimeter is able to measure the shape of the sea surface globally and frequently. Such measurements have a wide range of applications to oceanography, geodesy, and geophysics. The results are often revolutionary. For example, in oceanography; it takes a ship weeks or months to cross the ocean making measurements while the ocean is constantly changing its circulation, temperature, and salinity.

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  • Welcome to MapReduce Design Patterns! This book will be unique in some ways and familiar in others. First and foremost, this book is obviously about design patterns, which are templates or general guides to solving problems. We took a look at other design patterns books that have been written in the past as inspiration, particularly Design Patterns: Elements of Reusable Object-Oriented Software, by Gamma et al. (1995), which is commonly referred to as “The Gang of Four” book. For each pattern, you’ll see a template that we reuse over and over that we loosely based off of their book.

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  • from the Latin cella, meaning storeroom or chamber. It was first used in biology in 1665 by the English botanist Robert Hooke to describe the individual units of the honeycomb-like structure he observed in cork under a compound microscope. The “cells” Hooke observed were actually the empty lumens of dead cells surrounded by cell walls, but the term is an apt one because cells are the basic building blocks that define plant structure. This book will emphasize the physi

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  • XXII. THE NONHUMAN ORIGINAL FACTORS OF PRODUCTION 1. General Observations Concerning the Theory of Rent In the frame of Ricardian economics the idea of rent was an attempt at a treatment of those problems which modern economics approaches by means of marginal-utility analysis.

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  • Chapter 17Tropical Rain Forests as Old-Growth Forests In the context of this book, we may begin by making the general observation that many rain forests are par excellence old growth forests. They have the diagnostic characteristics mentioned in the companion chapter

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  • It is shown that if a d-regular graph contains s vertices so that the distance between any pair is at least 4k, then its adjacency matrix has at least s eigenvalues which are at least 2pd − 1 cos(  2k ). A similar result has been proved by Friedman using more sophisticated tools.More generally, Serre has shown (see [3], [4] ) that for any fixed r and for any infinite family of d-regular graphs Gi, lim inf r(Gi) 2pd − 1. The same result has been proved by Friedman already in [5].

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  • "The best mode of exciting the love of observation is by teaching 'How to Observe.' With this end it was originally intended to produce, in one or two volumes, a series of hints for travellers and students, calling their attention to the points necessary for inquiry or observation in the different branches of Geology, Natural History, Agriculture, the Fine Arts, General Statistics, and Social Manners.

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  • This subject has indeed been, in some measure, preoccupied by persons far more capable of doing it justice than I can pretend to be. Had Captain Cook and Mr Anderson lived to avail themselves of the advantages which we enjoyed by a return to these islands, it cannot be questioned, that the public would have derived much additional information from the skill and diligence of two such accurate observers.

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  • Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học General Psychiatry cung cấp cho các bạn kiến thức về ngành y đề tài: An observational study in psychiatric acute patients admitted to General Hospital Psychiatric Wards in Italy...

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  • Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học General Psychiatry cung cấp cho các bạn kiến thức về ngành y đề tài:Switching TNF antagonists in patients with chronic arthritis: an observational study of 488 patients over a four-year period...

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  • Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học General Psychiatry cung cấp cho các bạn kiến thức về ngành y đề tài: Effects of cyclophosphamide on pulmonary function in patients with scleroderma and interstitial lung disease: a systematic review and meta-analysis of randomized controlled trials and observational prospective cohort studies...

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  • Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học General Psychiatry cung cấp cho các bạn kiến thức về ngành y đề tài: Relationship of compartment-specific structural knee status at baseline with change in cartilage morphology: a prospective observational study using data from the osteoarthritis initiative...

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  • Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học General Psychiatry cung cấp cho các bạn kiến thức về ngành y đề tài: The loss of health status in rheumatoid arthritis and the effect of biologic therapy: a longitudinal observational study...

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  • Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học General Psychiatry cung cấp cho các bạn kiến thức về ngành y đề tài: Provision of preventive health care in systemic lupus erythematosus: data from a large observational cohort study...

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  • Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học General Psychiatry cung cấp cho các bạn kiến thức về ngành y đề tài: Mycophenolate mofetil as maintenance therapy for proliferative lupus nephritis: a long-term observational prospective study...

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