نتایج جستجو برای: مدل svm
تعداد نتایج: 141574 فیلتر نتایج به سال:
This paper presents a study of employing Ranking SVM and Convolutional Neural Network for two missions: legal information retrieval and question answering in the Competition on Legal Information Extraction/Entailment. For the first task, our proposed model used a triple of features (LSI, Manhattan, Jaccard), and is based on paragraph level instead of article level as in previous studies. In fac...
This paper describes the ITNLP system participated in the Knowledge Base Population (KBP) track English Entity Linking task. Our Entity linking system is composed of three parts: candidate generation, candidate ranking and nil clustering. In the candidate generation process, the redirect pages and anchor texts in Wikipedia are utilized to generate candidate entities for the mentions. Ranking SV...
در این تحقیق مطالعه ی ارتباط کمی ساختار- خاصیت (qspr)، برای پیش بینی ضریب فعالیت در رقت بی نهایت 58 ترکیب آلی و آب در محیط مایع یونی، 1-بوتیل 1-متیل پیرولیدینیوم تری سیانو متانید [bmpyr][tcm]، در 6 دمای مختلف انجام شده است. تعداد زیادی توصیف کننده شامل 18 دستهی مختلف، توسط نرم افزار dragon محاسبه شدند و سپس برای انتخاب توصیفکنندههای مهم از دو روش رگرسیون مرحله ای (sr) و الگوریتم ژنتیک بر اسا...
Backgrounds and Objectives: Precise air pollutants prediction, as the first step in facing air pollution problem, could provide helpful information for authorities in order to have appropriate actions toward this challenge. Regarding the importance of carbon monoxide (CO) in Tehran atmosphere, this study aims to introduce a suitable model for predicting this pollutant. Materials and Method: W...
Outlier detection is an important task in data mining because outliers can be either useful knowledge or noise. Many statistical methods have been applied to detect outliers, but they usually assume a given distribution of data and it is difficult to deal with high dimensional data. The Statistical Learning Theory (SLT) established by Vapnik et aI. provides a new way to overcome these drawbacks...
چکیده پهنه های آبی، همواره به عنوان یکی از عوامل موثر در محیط زیست انسان و سایر موجودات زنده، شناخته می شود. از این رو، یکی از مهم ترین موضوعات پژوهش های زیست محیطی، بررسی کیفیت پهنه-های آبی می باشد. در این راستا، آگاهی از پارامترهای کیفی آب، امری لازم و اجتناب ناپذیر است. با توجه به وجود برخی مشکلات در اندازه گیری این پارامترها در مناطق گوناگون، و از طرفی به دلیل وجود اثرات واکنش های پارامتره...
Learning To Rank (LTR) techniques aim to learn an effective document ranking function by combining several document features. While the function learned may be uniformly applied to all queries, many studies have shown that different ranking functions favour different queries, and the retrieval performance can be significantly enhanced if an appropriate ranking function is selected for each indi...
Many different ranking algorithms based on content and context have been used in web search engines to find pages based on a user query. Furthermore, to achieve better performance some new solutions combine different algorithms. In this paper we use simulated click-through data to learn how to combine many content and context features of web pages. This method is simple and practical to use wit...
A classification technique using Support Vector Machine (SVM) classifier for detection of rolling element bearing fault is presented here. The SVM was fed from features that were extracted from of vibration signals obtained from experimental setup consisting of rotating driveline that was mounted on rolling element bearings which were run in normal and with artificially faults induced conditio...
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