Database indexing methods

This study aimed to identify metabolic subtypes in ESCA, explore their relationship with immune land‑ scapes, and establish a metabolic index for accurate prognosis assessment. Methods Clinical, SNP, and RNA-seq data were collected from 80 ESCA patients from the TCGA database and RNAseq data from the GSE19417 dataset. Metabolic genes associated with overall survival (OS) and progression-free survival (PFS) were selected, and k-means clustering was performed.

16p vikoch 27-06-2024 1 1   Download

The paper aims to provide recommendations on the most effective way of developing such system. The paper’s main research method is a combination of desk review and consultative discussion with a sample of ministries and provinces. The former focuses on examination of good international practices in developing economic performance indicators and the legal framework and current status of relevant databases.

15p longtimenosee09 08-04-2024 2 2   Download

The book is divided into ten chapters. We start with some examples and a description of multimedia databases. In addressing multimedia information, we are addressing digital data representations and how these data can be stored and manipulated. Multimedia data provide additional functionality than would be available in traditional forms of data. It allows new data access methods such as query by images in which the most similar image to the presented image is determined.

322p haojiubujain08 01-11-2023 7 3   Download

Part 1 of book "Searching multimedia databases by content" provide with knowledge about: database indexing methods; introduction to relational DBMS; primary key access methods; secondary key access methods; spatial access methods (SAMS); access methods for text;...

66p britaikridanik 05-07-2022 33 4   Download

Obesity is a serious disorder and may bring about many difficulties of perioperative management. A systematic review was conducted to assess the association between obesity and difficult intubation. Methods: We searched electronic databases for related reviews and references of meta-analyses on August 14, 2017.

13p vampires36 30-12-2021 6 1   Download

To evaluate the prevalence of work-related musculoskeletal disorders (WRMSDs) in perioperative nurses and to explore their association with personal characteristics. Methods: Medline, Cumulative Index to Nursing and Allied Health Literature, Scopus, Web of Science, Cochrane Library and Joanna Briggs Institute Database were systematically searched.

12p vianttinic2711 20-04-2021 11 1   Download

Video abstraction is a basic step for intelligent access to video and multimedia databases which facilitates content-based video indexing, retrieving and browsing. This paper presents a new video abstraction scheme. The proposed method relies on two stages. First, video is divided into short segments. Second, keyframes in each segment are selected using particle swarm optimisation. A group of experiments show that the proposed technique is promising in regards to selecting the most significant keyframes despite a sustainment in overhead processing.

5p kethamoi1 20-11-2019 18 1   Download

We choose the kinesins to illustrate similarities and differences between protein family databases. Kinesin and its relatives are motor proteins that utilize ATP hydrolysis to move along microtubules in eukaryotic cells. The motor portion of a kinesin is structurally very similar to that of the myosin motor, which moves along actin filaments, although no sequence similarity is evident between them. This is an example of likely divergence from an ancestral fold that is beyond current sequence- based comparison methods to detect.

12p yasuyidol 02-04-2013 47 5   Download

Oracle Partitioning enhances the data management environment for OLTP, data marts, and data warehouse applications by adding significant manageability, availability, and performance capabilities to large underlying database tables and indexes. Oracle Partitioning permits large tables to be broken into individually managed smaller pieces, while retaining a single application- level view of the data.

11p yasuyidol 02-04-2013 49 4   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 61 4   Download

Modern medicine is characterized by the continuously growing spectrum of improving diagnostic methods and therapeutic processes. It keeps getting more complicated and confusing and therefore also needs more order. The main goal of medical documentation is to provide information for the adequate care of patients. Carefully carried out written records like a patient history, physician indexes, or, more recently, patient databases serve to reach this goal.

218p hyperion75 22-01-2013 56 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 Data-Driven Multidimensional Indexing Method for Data Mining in Astrophysical Databases

7p dauphong20 11-03-2012 34 3   Download

Finding DataRowView Objects in a DataView You can find the index of a DataRowView in a DataView using the Find() method of a DataView

5p daisuphu 29-07-2010 114 6   Download