راحتی قوچانی, سعید
دانشگاه آزاد اسلامی واحد مشهد
[ 1 ] - بررسی اثر ضربان های دوگوشی بر افراد معتاد با استفاده از سیگنال مغزی (EEG)
Aim and scope: When two audio signals with different frequencies are presented separately to the left and right ears, the brain perceived an audio signal with frequency equal to the frequency difference between the two audio signals. This phenomenon has known as the binaural beat. If this technology used regular and listened targeted, it can reduced stress and anxiety, and increased focus, conc...
[ 2 ] - یک چارچوب نیمه‌نظارتی مبتنی بر لغت‌نامه وفقی خودساخت جهت تحلیل نظرات فارسی
With the appearance of Web 2.0 and 3.0, users’ contribution to WWW has created a huge amount of valuable expressed opinions. Considering the difficulty or impossibility of manually analyzing such big data, sentiment analysis, as a branch of natural language processing, has been highly considered. Despite the other (popular) languages, a limited number of research studies have been conducted in ...
[ 3 ] - سیستم شناسایی و طبقه بندی اسامی در متون فارسی
Name entity recognition (NER) is a system that can identify one or more kinds of names in a text and classify them into specified categories. These categories can be name of people, organizations, companies, places (country, city, street, etc.), time related to names (date and time), financial values, percentages, etc. Although during the past decade a lot of researches has been done on NER in ...
[ 4 ] - برچسب‌زنی نقش معنایی جملات فارسی با رویکرد یادگیری مبتنی بر حافظه
Abstract Extracting semantic roles is one of the major steps in representing text meaning. It refers to finding the semantic relations between a predicate and syntactic constituents in a sentence. In this paper we present a semantic role labeling system for Persian, using memory-based learning model and standard features. Our proposed system implements a two-phase architecture to first identify...
[ 5 ] - شناسایی میکرو آمبولی مغزی در سیگنال داپلر از روی ویژگی های غیر خطی
Abstract: An embolus is a blood clot, a fat globule or gas bubbles that may be freely circulating in bloodstream can stop the blood flow and lead to ischemia. In real time assessment of blood flow by Trans Cranial Doppler (TCD) method, travelling solid or gaseous micro emboli in the bloodstream by passing across the assessment area, causes a short time signal with high intensity. While TCD reco...
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