Elasticsearch 5.4.3搜索性能调优

关于Elasticsearch的性能调优网上有很多说明,但是最靠谱的就是官网[Tune for search

阅读全文>> 2018-02-01 10:15:54      编辑     阅读量:1178

在whoosh中添加crossterm算法

现在已经看了query, search等已知获取positions:```ix = storag

阅读全文>> 2018-01-26 09:11:58      编辑     阅读量:369

召回率(Recall Rate)、准确率(Precision Rate)和MAP

信息检索、分类、识别、翻译等领域两个最基本指标是召回率(Recall Rate)和准确率(Precision

阅读全文>> 2017-11-14 02:24:22      编辑     阅读量:2428

使用Elasticsearch做关键字自动补全,支持拼音和首字拼音以及模糊匹配等

和Elasticsearch自带的Completion Suggester的原理不同,这里的原理是,新建一个

阅读全文>> 2017-10-31 10:47:28      编辑     阅读量:1417

使用Elasticsearch做关键字自动补全--completion suggester

搜索引擎的自动补全,本文基于搜索历史进行补全,适用于拥有大量数据的搜索引擎。但只支持前缀补全

阅读全文>> 2017-10-31 02:42:08      编辑     阅读量:972

Elasticsearch 5.x 字段折叠的使用,就是针对某一field去重

在 Elasticsearch 5.x 有一个字段折叠(Field Collapsing,[#22337](

阅读全文>> 2017-10-31 02:38:54      编辑     阅读量:1263

关于Elasticsearch索引的一些配置、操作

重建索引,reindex,别名,

阅读全文>> 2017-09-17 07:52:17      编辑     阅读量:431

Elasticsearch自定义分词器

Elasticsearch的analyzer通常由三个部分组成,Character filters(字符过滤

阅读全文>> 2017-09-17 07:13:13      编辑     阅读量:588

一个很简单的推荐系统

当用户浏览某条具体新闻时,我们在页面底端给出5条和该新闻相关的新闻,也就是一个最简单的推荐系统。 推荐

阅读全文>> 2017-09-10 08:50:46      编辑     阅读量:471

检索模型相关

# 一、检索模型的概述## 1. 布尔模型苹果 AND 公司:表示搜索既包含“苹果”,又包含“公

阅读全文>> 2017-09-10 08:01:19      编辑     阅读量:910

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Sure, here's the article with spintax syntax applied to each word: ``` # This ultimate guide to heating, ventilation, and air conditioning services: All you need you need to know Welcome to the comprehensive guide to HVAC services! Regardless of whether you're in requirement of furnace repair, installing a new furnace, air conditioner repair, installing a new air conditioner, replacing your AC unit, heater repair, heater replacement, air duct cleaning, or cleaning your dryer vent, this detailed article has got you covered. From understanding the basics of heating, ventilation, and air conditioning systems to choosing the right contractor for your needs, we'll walk you through everything you need to know to keep your house cozy and energy-efficient all year long. ## Understanding HVAC Systems HVAC stands for Heating, Ventilation, and Cooling. These systems are in charge for managing indoor air quality, regulating temperature, and providing comfort within residential and commercial buildings. A well-maintained HVAC system is crucial for ensuring a safe and comfortable living area while also increasing energy efficiency. ### Components of an HVAC System - Furnace: The heater is tasked for heating the air that is distributed throughout your residence throughout the colder months. - Air Conditioner: The air conditioner cools the air in hot weather by removing heat and humidity from the indoor air. - Heating System: Heat pumps are flexible systems that can both warm and cool your home by moving heat between the indoors and outdoors. - Thermostat: The thermostat regulates the operation of the heating, ventilation, and air conditioning system by controlling temperature settings. - Air Ducts: Ductwork are used to distribute warm or cooled air around the home via vents and registers. - Air Filtration System: Air filtration systems capture dust, pollen, and other airborne particles to improve indoor air quality and protect HVAC equipment. ## Common heating, ventilation, and air conditioning Services ### Furnace Repair and Installation If your furnace is malfunctioning or nearing the end of its lifespan, it may be time for fixing your furnace or installing work. 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A new, energy-efficient air conditioner unit can not only improve indoor comfort but also reduce energy consumption and lower utility bills in the long run. ### Furnace Repair and Replacement A faulty furnace can leave you shivering in the cold. Whether you have a furnace, heating system, or boiler, repairing your heater or replacing is crucial for maintaining a warm and cozy home during the winter months. Trust a professional heating, ventilation, and air conditioning contractor to diagnose the issue and recommend the best heating solution for your needs. ### Air Duct Cleaning Over time, dust, dirt, and debris can accumulate inside your residence's air ducts, reducing indoor air quality and obstructing HVAC performance. Cleaning your air ducts removes built-up contaminants and improves airflow, ensuring that your heating, ventilation, and air conditioning system operates efficiently and effectively. ### Dryer Vent Cleaning Clogged dryer vents pose a serious fire hazard and can also impede dryer performance. Cleaning your dryer vent removes lint and debris from the venting system, reducing the risk of fires and improving dryer efficiency. ## Choosing the Right heating, ventilation, and air conditioning Contractor When it comes to HVAC services, choosing the right contractor is important for ensuring quality workmanship and reliable service. Here are some tips for selecting the best HVAC contractor for your needs: - Credentials: Look for contractors who are licensed, bonded, and insured. 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A reputable contractor should stand behind their work and offer guarantees for peace of mind. <a hrefhttps://twitter.com/PJMACClementon/furnace repair</a> ## Key Points - HVAC systems are vital for keeping indoor comfort and air quality. - Common HVAC services include repairing your furnace, furnace installation, fixing your air conditioner, installing a new air conditioner, replacing your AC unit, heater repair, replacing your heater, cleaning your air ducts, and cleaning your dryer vent. - Choosing the right HVAC contractor is important for ensuring quality workmanship and reliable service. With this handbook, you're equipped with the knowledge and tools to keep your heating, ventilation, and air conditioning system running smoothly all year long. Whether you're in requirement of routine maintenance or major repairs, trust a qualified HVAC contractor to keep your home comfortable and energy-efficient.

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Sure, here's the article with spintax syntax applied to each word: ``` # The comprehensive guide to heating, ventilation, and air conditioning services: All you need you require to know Welcome to our ultimate manual to HVAC services! Whether you're in need of furnace repair, installing a new furnace, fixing your air conditioner, air conditioner installation, replacing your AC unit, repairing your heater, heater replacement, air duct cleaning, or cleaning your dryer vent, this comprehensive article has got you taken care of. From grasping the basics of HVAC systems to finding the right service provider for your needs, we'll walk you through everything you require to know to keep your residence pleasant and energy-efficient all year long. ## Understanding heating, ventilation, and air conditioning Systems Heating, ventilation, and air conditioning stands for Warming, Air flow, and Air Conditioning. These systems are tasked for managing indoor air quality, controlling temperature, and supplying comfort within residential and commercial buildings. A well-maintained heating, ventilation, and air conditioning system is crucial for ensuring a safe and comfortable living environment while also increasing energy efficiency. ### Components of an heating, ventilation, and air conditioning System - Furnace: The heater is responsible for heating the air that is dispersed throughout your house throughout the colder months. - Air Conditioner: The AC chills the air during hot weather by removing heat and humidity from the indoor air. - Heat Pump: Heating systems are flexible systems that can both heat and cool your home by moving heat between the indoors and outdoors. - Thermostat: The temperature controller regulates the operation of the heating, ventilation, and air conditioning system by controlling temperature settings. - Air Ducts: Ductwork are used to distribute heated or cooled air throughout the home via vents and registers. - Air Filtration System: Air filters remove dust, pollen, and other airborne particles to improve indoor air quality and safeguard heating, ventilation, and air conditioning equipment. ## Common HVAC Services ### Furnace Repair and Installation If your heater is not working or nearing the end of its lifespan, it may be time for fixing your furnace or installing service. Common signs of a faulty heater include unusual noises, uneven heating, or increased energy bills. A professional heating, ventilation, and air conditioning technician can diagnose the issue and recommend the best course of action to bring back warmth and efficiency to your residence. ### AC Repair and Installation When your AC is struggling to keep your residence cool, it's important to address the issue immediately with fixing your air conditioner or installing service. Whether your AC is blowing warm air, leaking refrigerant, or experiencing electrical issues, a qualified technician can diagnose the problem and restore comfort to your living area. ### AC Replacement If your air conditioner is outdated or beyond repair, AC replacement may be the most cost-effective solution. A new, energy-efficient AC unit can not only enhance indoor comfort but also reduce energy consumption and lower utility bills in the long run. ### Furnace Repair and Replacement A malfunctioning furnace can leave you shivering in the cold. Whether you have a furnace, heating system, or boiler, heater repair or replacing is essential for maintaining a warm and cozy house during the winter months. Trust a professional HVAC contractor to diagnose the issue and recommend the best heating solution for your needs. ### Ductwork Cleaning Over time, dust, dirt, and debris can accumulate inside your residence's ductwork, reducing indoor air quality and impeding HVAC performance. Cleaning your air ducts removes built-up contaminants and improves airflow, ensuring that your HVAC system operates efficiently and effectively. ### Dryer Vent Cleaning Clogged laundry vents pose a serious fire hazard and can also impede dryer performance. Cleaning your dryer vent removes lint and debris from the venting system, reducing the risk of fires and improving dryer efficiency. ## Choosing the Right HVAC Contractor When it comes to HVAC services, choosing the right contractor is important for ensuring quality workmanship and reliable service. Here are some tips for selecting the best heating, ventilation, and air conditioning contractor for your needs: - Qualifications: Look for contractors who are licensed, bonded, and insured. This ensures that they have the necessary training and qualifications to perform heating, ventilation, and air conditioning services safely and effectively. - Experience: Choose a contractor with extensive experience in the heating, ventilation, and air conditioning industry. Experienced technicians are better equipped to diagnose and resolve complex HVAC issues. - References: Ask for references from past clients or check online reviews to gauge the contractor's reputation and customer satisfaction. - Cost: While cost is an important factor, it shouldn't be the sole determinant. Look for contractors who offer competitive pricing without compromising on quality. - Guarantee: Inquire about warranty coverage for parts and labor. A reputable contractor should stand behind their work and offer guarantees for peace of mind. <a hrefhttps://twitter.com/PJMACClementon/air conditioner installation</a> ## Key Takeaways - HVAC systems are essential for keeping indoor comfort and air quality. - Common HVAC services include repairing your furnace, furnace installation, air conditioner repair, air conditioner installation, replacing your AC unit, heater repair, replacing your heater, air duct cleaning, and cleaning your dryer vent. - Choosing the right heating, ventilation, and air conditioning contractor is crucial for ensuring quality workmanship and reliable service. With this guide, you're ready with the knowledge and tools to keep your heating, ventilation, and air conditioning system running smoothly all year long. Whether you're in requirement of routine maintenance or major repairs, trust a qualified HVAC contractor to keep your house comfortable and energy-efficient.

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Sure, here's the article with spintax syntax applied to each word: ``` # The complete guide to HVAC services: All you need you require to know Welcome to the comprehensive manual to HVAC services! Whether or not you're in need of furnace repair, furnace installation, fixing your air conditioner, installing a new air conditioner, replacing your AC unit, repairing your heater, replacing your heater, air duct cleaning, or dryer vent cleaning, this detailed article has got you sorted. From comprehending the basics of heating, ventilation, and air conditioning systems to choosing the right contractor for your requirements, we'll walk you through everything you need to know to keep your house pleasant and energy-efficient year-round. ## Understanding heating, ventilation, and air conditioning Systems HVAC stands for Heating, Air flow, and Cooling. These systems are in charge for maintaining indoor air quality, controlling temperature, and supplying comfort within residential and commercial buildings. A well-maintained heating, ventilation, and air conditioning system is essential for guaranteeing a safe and comfortable living area while also maximizing energy efficiency. ### Components of an HVAC System - Heater: The furnace is tasked for warming the air that is dispersed throughout your residence throughout the colder months. - Air Conditioner: The AC cools the air during hot weather by extracting heat and humidity from the indoor air. - Heat Pump: Heating systems are versatile systems that can both warm and cool your house by exchanging heat between the indoors and outdoors. - Temperature Controller: The temperature controller regulates the operation of the HVAC system by controlling temperature settings. - Ductwork: Air ducts are used to distribute heated or cooled air around the home via vents and registers. - Air Filtration System: Air filters capture dust, pollen, and other airborne particles to improve indoor air quality and safeguard heating, ventilation, and air conditioning equipment. ## Common heating, ventilation, and air conditioning Services ### Furnace Repair and Installation If your heater is acting up or nearing the end of its lifespan, it may be time for fixing your furnace or installing service. Common signs of a faulty heater include odd noises, uneven heating, or increased energy bills. A professional heating, ventilation, and air conditioning technician can diagnose the issue and recommend the best course of action to restore warmth and efficiency to your house. ### AC Repair and Installation When your AC is struggling to keep your house cool, it's crucial to address the issue promptly with air conditioner repair or installing work. Whether your air conditioner is blowing warm air, leaking refrigerant, or experiencing electrical issues, a qualified technician can diagnose the problem and restore comfort to your living space. ### AC Replacement If your air conditioner is outdated or beyond repair, air conditioner replacement may be the most cost-effective solution. A new, energy-efficient AC unit can not only improve indoor comfort but also reduce energy consumption and lower utility bills in the long run. ### Heater Repair and Replacement A broken furnace can leave you shivering in the cold. Whether you have a heater, heat pump, or boiler, repairing your heater or replacing is crucial for keeping a warm and cozy home during the winter months. Trust a professional heating, ventilation, and air conditioning contractor to diagnose the issue and recommend the best heating solution for your needs. ### Ductwork Cleaning Over time, dust, dirt, and debris can accumulate inside your home's ductwork, reducing indoor air quality and impeding HVAC performance. Air duct cleaning removes built-up contaminants and improves airflow, ensuring that your HVAC system operates efficiently and effectively. ### Dryer Vent Cleaning Clogged dryer vents pose a serious fire hazard and can also impede dryer performance. Dryer vent cleaning removes lint and debris from the venting system, reducing the risk of fires and improving dryer efficiency. ## Choosing the Right HVAC Contractor When it comes to heating, ventilation, and air conditioning services, choosing the right contractor is crucial for ensuring quality workmanship and reliable service. Here are some tips for selecting the best heating, ventilation, and air conditioning contractor for your needs: - Credentials: Look for contractors who are licensed, bonded, and insured. This ensures that they have the necessary training and qualifications to perform heating, ventilation, and air conditioning services safely and effectively. - Experience: Choose a contractor with extensive experience in the heating, ventilation, and air conditioning industry. Experienced technicians are better equipped to diagnose and resolve complex heating, ventilation, and air conditioning issues. - Referrals: Ask for references from past clients or check online reviews to gauge the contractor's reputation and customer satisfaction. - Pricing: While cost is an important factor, it shouldn't be the sole determinant. Look for contractors who offer competitive pricing without compromising on quality. - Guarantee: Inquire about warranty coverage for parts and labor. A reputable contractor should stand behind their work and offer guarantees for peace of mind. <a hrefhttps://twitter.com/PJMACClementon/furnace repair</a> ## Key Takeaways - HVAC systems are crucial for maintaining indoor comfort and air quality. - Common HVAC services include furnace repair, furnace installation, fixing your air conditioner, air conditioner installation, replacing your AC unit, repairing your heater, heater replacement, air duct cleaning, and dryer vent cleaning. - Choosing the right HVAC contractor is essential for ensuring quality workmanship and reliable service. With this manual, you're ready with the knowledge and tools to keep your HVAC system running smoothly year-round. Whether you're in need of routine maintenance or major repairs, trust a qualified HVAC contractor to keep your residence comfortable and energy-efficient.

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