Searching techniques

This study focuses on optimizing the hyperparameters of the XGB model by a grid search to find an optimal XGB predictive model. In addition, the effect of input parameters on the SCCRF's CS is studied using Shapley Additive exExplanations (SHAP) values technique.

14p viengfa 28-10-2024 3 2   Download

The methanol extracts as well as some compounds from this plant exhibited anti-inflammatory, antimicrobial activity, antioxidant, hepatoprotective and anti-cancer effect, and antiosteoporotic. On going to search for bioactive components from the Vietnamese plant, this paper reported the isolation of seven phenolic compounds including one new from the aerial parts of A. ilicifolius. The cytotoxic activity of the isolates against two cancer cell lines (HepG2 and SK-LU1) were also screened and reported herein.

5p dianmotminh02 03-05-2024 8 2   Download

Bài giảng Khai phá dữ liệu (Data mining): Genetic algorithm, chương này trình bày những nội dung về: introduction to genetic algorithms (GA); classes of search techniques; nature to computer mapping; GA operators and parameters; example and homework;... Mời các bạn cùng tham khảo chi tiết nội dung bài giảng!

70p diepkhinhchau 18-09-2023 12 5   Download

As more Koreans invested in Vietnam, the number of foreign students in Korea increased due to the perception that studying in Korea would be beneficial for employment within Vietnam. Also, the ratio of international students entering graduate school is increasing. In this study, the researches related to Vietnam were investigated, focusing on the articles and papers of journals searched through the Vietnam keyword of the National Assembly Library. We also have examined research trends through Big Data Analysis.

8p sotritu 18-09-2021 7 2   Download

The thesis researches and builds an entity search technique based on implicit semantic relations using clustering methods to improve search efficiency. Apply context-aware techniques, build an vertical search engine that applies context-aware in its own knowledge base domain (aviation data). Propose to measure combinatorial similarity in the contextual query suggestion problem to improve the quality of suggestion.

27p capheviahe27 23-02-2021 20 4   Download

Complex industrial systems often contain various uncertainties. Hence sophisticated fuzzy optimization (metaheuristics) techniques have become commonplace; and are currently indispensable for e ective design, maintenance and operations of such systems. Unfortunately, such state-of-the-art techniques suffer several drawbacks when applied to largescale problems.

18p nguathienthan9 08-12-2020 21 2   Download

In this paper, we describe the application of CRO algorithm to search optimal parameters for PID controller because CRO combines both features of local and global searching techniques to increase the chance of finding global solution. The comparison of tuning PID controller by CRO and traditional Ziegler-Nichols method is also presented. The simulated results show the advantages of tuning PID using CRO compared to traditional methods in terms of performance indices and transient responses.

12p tamynhan9 02-12-2020 55 2   Download

This paper introduces a novel practical variant, namely an open close multiple travelling salesmen problem with single depot (OCMTSP) that concerns the generalization of classical travelling salesman problem (TSP).

16p tohitohi 22-05-2020 25 1   Download

This thesis proposes a new method to determine moving objects by applying some motion estimation techniques in the video compression domain. At the same time, this method will also be used to build an application that supports the identification and search of motion in home surveillance videos. The compression format of the videos in the thesis uses H264 compression (MPEG-4 part10), a popular video compression standard today.

53p hanh_tv25 02-04-2019 24 4   Download

Lecture Data Structures & Algorithms: Chapter 3 (Searching Techniques prens) presented linear (sequential) search, binary search, complexity of algorithms.

16p hoahue91 24-07-2014 75 3   Download

The thesis does not focus on introducing IM tools and techniques applied them in specific situations, such as marketing techniques through search engine ) SEM (Search Engine Marketing), Marketing on social networks ) SMM (Social Media Marketing)...; only focus on studying process of IM activity in general, from analysing information, planning, building strategy, selecting tool and implementing the plan and testing the correction. Related to respondents: Survey of SMEs, satisfying the conditions.

0p nguyenthiminh32 12-07-2014 90 10   Download

The purpose of this study was to investigate the operation of the Hoabinh reservoir in the Red River Basin of Vietnam, and assess the room for its improvement by application of system analysis and optimal control techniques. The study aimed at establishing a foundation for further research on inter-reservoir regulation of the Basin. Finally, this study provided a testing ground for developing and comparing dierent reservoir optimization methods.

138p xuanquachthi 08-06-2013 104 5   Download

A technique has been developed to search a proteome database for new members of a functional class of membrane protein. It takes advantage of the highly conserved secondary structure of functionally related membrane proteins. Such proteins typically have the same number of transmembrane domains located at similar relative positions in their polypeptide sequence. This gives rise to a characteristic pattern of peaks in their hydropathy profiles.

7p research12 01-06-2013 32 4   Download

Hacking - showing computer expertise Cracking - breaching security on software or systems Phreaking - cracking telecom networks Spoofing - faking the originating IP address in a datagram Denial of Service (DoS) - flooding a host with sufficient network traffic so that it can’t respond anymore Port Scanning - searching for vulnerabilities

25p muathu_102 28-01-2013 73 5   Download

The PageRank algorithm, used in the Google search engine, greatly improves the results of Web search by applying probabilistic model on the link structure of Webs to evaluate the “importance” of Webs. In PageRank probabilistic model, the links and webs are uniform, so the rank score of webs are quite independent from their content. In practice, the researchers often hope that the web results can be ranked by their proposed topics. Moreover, when computer’s techniques solve given problems ineffectively, it’s necessary to do better research in theoretical problems. ...

12p tuanlocmuido 19-12-2012 39 3   Download

Association rules represent a promising technique to find hidden patterns in a medical data set. The main issue about mining association rules in a medical data set is the large number of rules that are discovered, most of which are irrelevant. Such number of rules makes search slow and interpretation by the domain expert difficult. In this work, search constraints are introduced to find only medically significant association rules and make search more efficient.

8p lebronjamesuit 23-08-2012 86 7   Download

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: A Novel Prostate Cancer Classification Technique Using Intermediate Memory Tabu Search

9p dauphong20 11-03-2012 40 4   Download

Thuật giải di truyền (Genetic Algorithm_GA) là kỹ thuật chung giúp giải quyết vấn đề-bài toán bằng cách mô phỏng sự tiến hóa của con người hay của sinh vật nói chung (dựa trên thuyết tiến hóa muôn loài của Darwin) trong điều kiện qui định sẵn của môi trường. GA là một thuật giải và mục tiêu của GA không nhằm đưa ra lời giải chính xác tối ưu mà là đưa ra lời giải tương đối tối ưu. ABSTRACT Genetic Algorithm (GA) is one of search techniques in popular. ...

5p meoden89nd 21-01-2011 582 152   Download

Import 2D outline drawing into Catia Build 3D curves based on the imported drawing Build the upper surfaces of the mouse (by Generative Shape Design) Do the draft analysis to search any undercut portion on the upper surfaces Adjust the curvature of the problem surface manually Build the lower surfaces of the mouse Convert the surfaces into a solid Build the parting surfaces based on the imported drawing Create components from the finished model Re-assemble the components into a product Modify the outlook of the master model and then get all components updated automatically...

99p nguyen8 02-12-2009 488 213   Download

The first section introduces basic data structures and notation. The next section presents several sorting algorithms. This is followed by techniques for implementing dictionaries, structures that allow efficient search, insert, and delete operations. The last section illustrates algorithms that sort data and implement dictionaries for very large files. Source code for each algorithm, in ANSI C, is available at the site listed below

36p ledung 13-03-2009 136 15   Download