نتایج جستجو برای: driven learning ddl

تعداد نتایج: 811417  

Journal: :American journal of clinical pathology 2005
Marlo Nicolas Cesar A Moran Saul Suster

A review of the histologic features of pulmonary metastasis and clinical implications of liposarcoma (LS) is given for 24 cases (8 each) of the 3 types of LS: myxoid LS (ML), pleomorphic LS (PL), and dedifferentiated LS (DDL). Most patients were men. Metastatic ML and PL were distributed almost equally among the lung lobes, whereas DDL was more common in the left lower lobe. The metastatic MLs ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علامه طباطبایی - دانشکده ادبیات و زبانهای خارجی 1389

این تحقیق بر پایه روش شناسی tim johns با عنوان data driven learning بنا نهاده شده است. از 40 دانشجوی سال آخر رشته مترجمی در دو گروه آزمایش و کنترل استفاده شد. به هر دو گروه قبل از مداخله یک پیش آزمون و پس از مداخله یک پس آزمون داده شد. گروه آزمایش پس آزمون را با استفاده از پیکره های کمیت و کیفیت و نرم افزار text stat برای تحلیل پیکره کمیت انجام داد. بعد از پایان مداخله خطاهای هر دو گروه محاسبه ...

2008
Wenjia Niu Zhongzhi Shi Liang Chang

A service composition task for service broker is to discovery and compose provider’s services to satisfy user’s request. Many researchers model the context utilizing ontology-based or attribute-based method to assist service composition. We propose a new context model by combining the context logic with the dynamic description logic (DDL), where user’ context, provider’s context and broker’s co...

2008
Jie Bao George Voutsadakis Giora Slutzki Vasant Honavar

Many semantic web applications require support for mappings between roles (or properties) defined in multiple independently developed ontology modules. Distributed Description Logics (DDL) and Package-based Description Logics (P-DL) offer two alternative logical formalisms that support such mappings. We prove that (a) variants of DDL that allow negated roles or cardinality restrictions in bridg...

2015
Gaja Jarosz Joe Pater Paul Smolensky Colin Wilson Bob Frank Dana Angluin Naz Merchant Giorgio Magri Bruce Hayes

Expectation Driven Learning of Phonology Gaja Jarosz Abstract This paper develops a novel approach to learning phonological hidden structure relying on underexplored expectation driven learning strategies rooted in the machine learning literature. A novel probabilistic grammatical representation that enables estimation of expectation driven learning updates, and two learning algorithms utilizin...

2017
Chris Grimmick George Kachergis Todd M. Gureckis

Both children and adults are able to extract several intended word-referent mappings from a series of scenes containing multiple words and objects. Known as cross-situational learning, this ability is thought to be an important means of acquiring language. Proposed models of this ability range from hypothesis-testing accounts to associative accounts, but most formal models assume learners store...

Journal: :J. Language Modelling 2015
Giorgio Magri

The literature on error-driven learning in Harmonic Grammar (HG) has adopted the Perceptron reweighing rule. Yet, this rule is not suited to HG, as it fails at ensuring non-negative weights. A variant is thus considered which truncates the updates at zero, keeping the weights non-negative. Convergence guarantees and error bounds for the original Perceptron are shown to extend to its truncated v...

Journal: :J. Log. Comput. 2016
Giorgio Magri

Recent counterexamples show that Harmonic Grammar (HG) error-driven learning (with the classical Perceptron reweighing rule) is not robust to noise and does not tolerate the stochastic implementation (Magri 2014, MS). This article guarantees that no analogous counterexamples are possible for proper Optimality Theory (OT) error-driven learners. In fact, a simple extension of the OT convergence a...

2012
Zhuxiao Wang Hui Peng Jing Guo Ying Zhang Kehe Wu Huan Xu Xiaofeng Wang

ADML is an architectural description language based on Dynamic Description Logic for defining and simulating the behavior of system architecture. ADML is being developed as a new formal language and/or conceptual model for representing the architectures of concurrent and distributed systems, both hardware and software. ADML embraces dynamic change as a fundamental consideration, supports a broa...

2008
Gilles Audemard Lucas Bordeaux Youssef Hamadi Saïd Jabbour Lakhdar Sais

This paper presents an extension of Conflict Driven Clauses Learning (CDCL). It relies on an extended notion of implication graph containing additional arcs, called inverse arcs. These are obtained by taking into account the satisfied clauses of the formula, which are usually ignored by conflict analysis. This extension captures more conveniently the whole propagation process, and opens new per...

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