نتایج جستجو برای: statistical model lars
تعداد نتایج: 2375475 فیلتر نتایج به سال:
Characteristics models have been found to be useful in many areas of economics. However, their empirical implementation tends to rely heavily on functional form assumptions. In this paper we develop a revealed preference approach to characteristics models. We derive the necessary and su¢ cient empirical conditions under which data on the market behaviour of heterogeneous, price-taking consumers...
We propose a new algorithm, DASSO, for fitting the entire coefficient path of the Dantzig selector with a similar computational cost to the LARS algorithm that is used to compute the Lasso. DASSO efficiently constructs a piecewise linear path through a sequential simplex-like algorithm, which is remarkably similar to LARS. Comparison of the two algorithms sheds new light on the question of how ...
Foreign body reaction with granuloma following Achilles tendon reconstruction with the LARS ligament
Ligament reconstruction with the LARS ligament has been a popular choice owing to its low-complication rates compared with previously commercially available grafts. The non-active nature of the implant also meant that there were no foreign body reactions that had been described with other synthetic grafts. We describe the first reported case of a granulomatous foreign body reaction in a LARS li...
از آنجا که پیش بینی سود نقدی شرکت ها یکی از منابع اطلاعاتی با ارزش برای سرمایه گذاران و دیگر افراد ذینفع است، پژوهش حاضر تلاش می کند مدل هایی برای پیش بینی متغیرهای تأثیرگذار بر سود نقدی سهام پیشنهاد کند. برای این کار از اطلاعات شرکت های شیمیایی پذیرفته شده در بورس تهران بین سال های 1385 تا 1389 استفاده شده است. متغیرهای مستقل این تحقیق نسبت های حسابداری و متغیر وابسته سود نقدی سهام است. چارچوب...
Damage to knee articular ligaments causes important functional problems and adversely affects particularly the stability of the knee joint. Several methods were developed in order to repair damage to the anterior cruciate ligament (ACL), which employ autografts, allografts, as well as synthetic ligaments. One such synthetic scaffold, the ligament advanced reinforcement system (LARS) synthetic l...
CONTEXT Computed tomography coronary angiography (CTCA) has become a common diagnostic test, yet there are little data on its associated cancer risk. The recent Biological Effects of Ionizing Radiation (BEIR) VII Phase 2 report provides a framework for estimating lifetime attributable risk (LAR) of cancer incidence associated with radiation exposure from a CTCA study, using the most current dat...
This development provides a formalization of directed graphs, supporting (labelled) multi-edges and infinite graphs. A polymorphic edge type allows edges to be treated as pairs of vertices, if multi-edges are not required. Formalized properties are i.a. walks (and related concepts), connectedness and subgraphs and basic properties of isomorphisms. This formalization is used to prove characteriz...
An increasing number of use cases require a timely extraction of non-trivial knowledge from semantically annotated data streams, especially on the Web and for the Internet of Things (IoT). Often, this extraction requires expressive reasoning, which is challenging to compute on large streams. We propose Laser, a new reasoner that supports a pragmatic, non-trivial fragment of the logic LARS which...
Helge Gad, Tobias Koolmeister, Ann-Sofie Jemth, Saeed Eshtad, Sylvain A. Jacques, Cecilia E. Ström, Linda M. Svensson, Niklas Schultz, Thomas Lundbäck, Berglind Osk Einarsdottir, Aljona Saleh, Camilla Göktürk, pawel Baranczewski, Richard Svensson, Ronnie p.-A. Berntsson, Robert Gustafsson, Kia Strömberg, Kumar Sanjiv, Marie-Caroline Jacques-Cordonnier, Matthieu Desroses, Anna-Lena Gustavsson, R...
It is always a pleasure to read one of Lars Svenssons papers on monetary policy. They are carefully reasoned, substantive, and address real world problems of monetary control. As the bibliography to his paper shows, he has done an impressive amount of theoretical and empirical work on the many facets of inflation control. The paper today summarizes a considerable part of his work. I recommend ...
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