Data clustering

In recent years, landslides are taking place very seriously, and tend to increase in both scope and scale, threatening people's lives and properties. Therefore, timely detection of landslide areas is extremely important to minimize damage. In this paper, an improved algorithm for partitioning data with reliability problems using multiple fuzzifiers named as TSSFC is introduced.

9p viengfa 28-10-2024 1 1   Download

This paper introduces a new clustering technique based on granular computing. In tradional clustering algorithms, the integration of the high shaping capability of the existing datasets becomes fussy which in turn results in inferior functioning.

8p viling 11-10-2024 2 1   Download

This study aims to evaluate the effectiveness of k-means and two-step cluster methods. Subsequently, the two-step cluster method and GIS are applied to analyze the traffic accident data sets from 2015 to 2017 in Hanoi, Vietnam.

15p vibecca 01-10-2024 1 1   Download

Lecture "Applied data science: Clustering" includes content: Exemplary technique - K-means clustering; Exemplary technique - Hierarchical clustering; Practical issues in clustering; Case study;... We invite you to consult!

21p kimphuong1144 04-12-2023 8 3   Download

Bài giảng Khai phá dữ liệu (Data mining): Clustering, chương này trình bày những nội dung về: giới thiệu Clustering; phân loại; thuật toán Kmeans; hierarchical clustering; density-based clustering; bài tập;... Mời các bạn cùng tham khảo chi tiết nội dung bài giảng!

70p diepkhinhchau 18-09-2023 15 6   Download

The inexpensive production costs might allow for dense deployments in the physical space. For example, consider a scenario where thousands of devices, socalled sensor nodes, are dropped from an aircraft into a remote terrain.

214p spiritedaway36 26-11-2021 17 3   Download

Nội dung chính của luận văn nhằm tính toán suất sinh lợi cho mỗi năm giáo dục. Đánh giá mức độ ảnh hưởng của các yếu tố cá nhân khác đến thu nhập của người lao động. Đề xuất các gợi ý chính sách liên quan. Mời các bạn cùng tham khảo nội dung chi tiết luận văn này!

70p destinedtoloveyou 10-08-2021 15 3   Download

The dissertation has four chapters: Chapter 1 - Background Materials; Chapter 2 - Analysis of an Algorithm in Indefinite Quadratic Programming; Chapter 3 - Qualitative Properties of the Minimum Sum-of-Squares Clustering Problem; Chapter 4 - Some Incremental Algorithms for the Clustering Problem.

142p armyofthedead 23-06-2021 32 2   Download

Objectives: The main objective of the dissertation is to research and develop fuzzy clustering techniques on remote sensing image data in order to improve accuracy and improve clustering quality of clustering algorithms.

162p armyofthedead 23-06-2021 23 3   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

In this paper, in order to increase the accuracy of the prediction model in imbalanced data classification problem, we propose a new cluster-based sampling method to address this work. Performing tests on a number of datasets, we have achieved important results when compared to cases without using any data balancing strategies and previous method.

9p koxih_kothogmih5 04-09-2020 25 3   Download

In this study, data is collected from employees of Indonesian ICT companies. Clusters were formulated, and respondents were selected randomly.

12p tocectocec 24-05-2020 33 0   Download

To improve the clustering task on high dimensional data sets, the distance based k-means algorithm is proposed. The proposed algorithm is tested using eighteen sets of normal and non-normal multivariate simulation data under various combinations.

8p tohitohi 22-05-2020 16 0   Download

The fluence-dependent photodissociation experiments show that the V19+ clusters prefer the evaporation of vanadium dimers rather than monomers. This finding is in line with dissociation energies extracted from early collision-induced dissociation data.

7p thithizone 16-07-2019 13 0   Download

This paper presents a method for automatic structural analysis of digital videos to generate the table of content and the index table of the given videos.These tables allow storing videos by a hierarchy of video, cluster of shots, shots, key-frames of shots, cluster of regions. Then a method for retrieving videos by using the input data as visual feature and semantic concepts is represented.

12p binhminhmuatrenngondoithonggio 09-06-2017 45 2   Download

This paper proposes a procedural pipeline for wind forecasting based on clustering and regression. First, the data are clustered into groups sharing similar dynamic properties. Then, data in the same cluster are used to train the neural network that predicts wind speed. For clustering, a hidden Markov model (HMM) and the modified Bayesian information criteria (BIC) are incorporated in a new method of clustering time series data.

16p dieutringuyen 07-06-2017 37 2   Download

Bài giảng Cơ sở dữ liệu nâng cao - Chapter 7: Maintaining high availability. Chương 7 gồm có những nội dung chính sau đây: Availability, log shipping, data mirroring, clustering. Mời các bạn cùng tham khảo.

33p nomoney10 05-04-2017 73 7   Download

Cài Oracle cần như sau: 1. Tạo 2 Groups: đặc tên là oinstall và dba 2. Tạo 1 User account tên là: oracle (note: Đúng ra đặt là Tí Tèo gì củng được, nhưng conventional, thấy thiên hạ cài Oracle hay đặt là vậy.) Login as root, run: � # groupadd oinstall # groupadd dba # useradd -m -g oinstall -G dba oracle Tạo password cho user: oracle # passwd oracle Changing password for user oracle. New UNIX password: Retype new UNIX password: passwd: all authentication tokens updated successfully.

7p gcsvpn 28-02-2013 63 7   Download

Managing Tables Storing User Data There are several methods of storing user data in an Oracle database: Regular tables Partitioned tables Index-organized tables Clustered tables Note: Partitioned tables, index-organized tables, and clustered tables are covered in other courses. Regular Table A regular table (generally referred to as a “table”) is the most commonly used form of storing user data. This is the default table and is the main focus of this lesson. A database administrator has very limited control over the distribution of rows in a table.

40p trinh02 28-01-2013 63 5   Download

Types of Segments Segments are space-occupying objects in a database. They use space in the data files of a database. This section describes the different types of segments. Table A table is the most common means of storing data within a database. A table segment stores that data for a table that is neither clustered nor partitioned. Data within a table segment is stored in no particular order, and the database administrator (DBA) has very little control over the location of rows within the blocks in a table. All the data in a table segment must be stored in one tablespace.

34p trinh02 28-01-2013 53 3   Download