Mesos-error

本文介绍了解决在配置过程中遇到的“找不到libcurl”错误的方法。通过使用包管理器yum安装curl-devel包来解决问题。

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1,configure: error: cannot find libcurl

解决 yum install  curl-devel

基于数据挖掘的音乐推荐系统设计与实现 需要一个代码说明,不需要论文 采用python语言,django框架,mysql数据库开发 编程环境:pycharm,mysql8.0 系统分为前台+后台模式开发 网站前台: 用户注册, 登录 搜索音乐,音乐欣赏(可以在线进行播放) 用户登陆时选择相关感兴趣的音乐风格 音乐收藏 音乐推荐算法:(重点) 本课题需要大量用户行为(如播放记录、收藏列表)、音乐特征(如音频特征、歌曲元数据)等数据 (1)根据用户之间相似性或关联性,给一个用户推荐与其相似或有关联的其他用户所感兴趣的音乐; (2)根据音乐之间的相似性或关联性,给一个用户推荐与其感兴趣的音乐相似或有关联的其他音乐。 基于用户的推荐和基于物品的推荐 其中基于用户的推荐是基于用户的相似度找出相似相似用户,然后向目标用户推荐其相似用户喜欢的东西(和你类似的人也喜欢**东西); 而基于物品的推荐是基于物品的相似度找出相似的物品做推荐(喜欢该音乐的人还喜欢了**音乐); 管理员 管理员信息管理 注册用户管理,审核 音乐爬虫(爬虫方式爬取网站音乐数据) 音乐信息管理(上传歌曲MP3,以便前台播放) 音乐收藏管理 用户 用户资料修改 我的音乐收藏 完整前后端源码,部署后可正常运行! 环境说明 开发语言:python后端 python版本:3.7 数据库:mysql 5.7+ 数据库工具:Navicat11+ 开发软件:pycharm
MPU6050是一款广泛应用在无人机、机器人和运动设备中的六轴姿态传感器,它集成了三轴陀螺仪和三轴加速度计。这款传感器能够实时监测并提供设备的角速度和线性加速度数据,对于理解物体的动态运动状态至关重要。在Arduino平台上,通过特定的库文件可以方便地与MPU6050进行通信,获取并解析传感器数据。 `MPU6050.cpp`和`MPU6050.h`是Arduino库的关键组成部分。`MPU6050.h`是头文件,包含了定义传感器接口和函数声明。它定义了类`MPU6050`,该类包含了初始化传感器、读取数据等方法。例如,`begin()`函数用于设置传感器的工作模式和I2C地址,`getAcceleration()`和`getGyroscope()`则分别用于获取加速度和角速度数据。 在Arduino项目中,首先需要包含`MPU6050.h`头文件,然后创建`MPU6050`对象,并调用`begin()`函数初始化传感器。之后,可以通过循环调用`getAcceleration()`和`getGyroscope()`来不断更新传感器读数。为了处理这些原始数据,通常还需要进行校准和滤波,以消除噪声和漂移。 I2C通信协议是MPU6050与Arduino交互的基础,它是一种低引脚数的串行通信协议,允许多个设备共享一对数据线。Arduino板上的Wire库提供了I2C通信的底层支持,使得用户无需深入了解通信细节,就能方便地与MPU6050交互。 MPU6050传感器的数据包括加速度(X、Y、Z轴)和角速度(同样为X、Y、Z轴)。加速度数据可以用来计算物体的静态位置和动态运动,而角速度数据则能反映物体转动的速度。结合这两个数据,可以进一步计算出物体的姿态(如角度和角速度变化)。 在嵌入式开发领域,特别是使用STM32微控制器时,也可以找到类似的库来驱动MPU6050。STM32通常具有更强大的处理能力和更多的GPIO口,可以实现更复杂的控制算法。然而,基本的传感器操作流程和数据处理原理与Arduino平台相似。 在实际应用中,除了基本的传感器读取,还可能涉及到温度补偿、低功耗模式设置、DMP(数字运动处理器)功能的利用等高级特性。DMP可以帮助处理传感器数据,实现更高级的运动估计,减轻主控制器的计算负担。 MPU6050是一个强大的六轴传感器,广泛应用于各种需要实时运动追踪的项目中。通过 Arduino 或 STM32 的库文件,开发者可以轻松地与传感器交互,获取并处理数据,实现各种创新应用。博客和其他开源资源是学习和解决问题的重要途径,通过这些资源,开发者可以获得关于MPU6050的详细信息和实践指南
"C:\Program Files\Java\jdk1.8.0_281\bin\java.exe" "-javaagent:D:\新建文件夹 (2)\IDEA\idea\IntelliJ IDEA 2019.3.3\lib\idea_rt.jar=59342" -Dfile.encoding=UTF-8 -classpath "C:\Program Files\Java\jdk1.8.0_281\jre\lib\charsets.jar;C:\Program Files\Java\jdk1.8.0_281\jre\lib\deploy.jar;C:\Program Files\Java\jdk1.8.0_281\jre\lib\ext\access-bridge-64.jar;C:\Program Files\Java\jdk1.8.0_281\jre\lib\ext\cldrdata.jar;C:\Program Files\Java\jdk1.8.0_281\jre\lib\ext\dnsns.jar;C:\Program Files\Java\jdk1.8.0_281\jre\lib\ext\jaccess.jar;C:\Program Files\Java\jdk1.8.0_281\jre\lib\ext\jfxrt.jar;C:\Program Files\Java\jdk1.8.0_281\jre\lib\ext\localedata.jar;C:\Program Files\Java\jdk1.8.0_281\jre\lib\ext\nashorn.jar;C:\Program Files\Java\jdk1.8.0_281\jre\lib\ext\sunec.jar;C:\Program Files\Java\jdk1.8.0_281\jre\lib\ext\sunjce_provider.jar;C:\Program Files\Java\jdk1.8.0_281\jre\lib\ext\sunmscapi.jar;C:\Program Files\Java\jdk1.8.0_281\jre\lib\ext\sunpkcs11.jar;C:\Program 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op3.2\jars\RoaringBitmap-0.9.0.jar;D:\spark\spark-3.1.1-bin-hadoop3.2\jars\scala-collection-compat_2.12-2.1.1.jar;D:\spark\spark-3.1.1-bin-hadoop3.2\jars\scala-compiler-2.12.10.jar;D:\spark\spark-3.1.1-bin-hadoop3.2\jars\scala-library-2.12.10.jar;D:\spark\spark-3.1.1-bin-hadoop3.2\jars\scala-parser-combinators_2.12-1.1.2.jar;D:\spark\spark-3.1.1-bin-hadoop3.2\jars\scala-reflect-2.12.10.jar;D:\spark\spark-3.1.1-bin-hadoop3.2\jars\scala-xml_2.12-1.2.0.jar;D:\spark\spark-3.1.1-bin-hadoop3.2\jars\shapeless_2.12-2.3.3.jar;D:\spark\spark-3.1.1-bin-hadoop3.2\jars\shims-0.9.0.jar;D:\spark\spark-3.1.1-bin-hadoop3.2\jars\slf4j-api-1.7.30.jar;D:\spark\spark-3.1.1-bin-hadoop3.2\jars\slf4j-log4j12-1.7.30.jar;D:\spark\spark-3.1.1-bin-hadoop3.2\jars\snakeyaml-1.24.jar;D:\spark\spark-3.1.1-bin-hadoop3.2\jars\snappy-java-1.1.8.2.jar;D:\spark\spark-3.1.1-bin-hadoop3.2\jars\spark-catalyst_2.12-3.1.1.jar;D:\spark\spark-3.1.1-bin-hadoop3.2\jars\spark-core_2.12-3.1.1.jar;D:\spark\spark-3.1.1-bin-hadoop3.2\jars\spark-graphx_2.12-3.1.1.jar;D:\spark\spark-3.1.1-bin-hadoop3.2\jars\spark-hive-thriftserver_2.12-3.1.1.jar;D:\spark\spark-3.1.1-bin-hadoop3.2\jars\spark-hive_2.12-3.1.1.jar;D:\spark\spark-3.1.1-bin-hadoop3.2\jars\spark-kubernetes_2.12-3.1.1.jar;D:\spark\spark-3.1.1-bin-hadoop3.2\jars\spark-kvstore_2.12-3.1.1.jar;D:\spark\spark-3.1.1-bin-hadoop3.2\jars\spark-launcher_2.12-3.1.1.jar;D:\spark\spark-3.1.1-bin-hadoop3.2\jars\spark-mesos_2.12-3.1.1.jar;D:\spark\spark-3.1.1-bin-hadoop3.2\jars\spark-mllib-local_2.12-3.1.1.jar;D:\spark\spark-3.1.1-bin-hadoop3.2\jars\spark-mllib_2.12-3.1.1.jar;D:\spark\spark-3.1.1-bin-hadoop3.2\jars\spark-network-common_2.12-3.1.1.jar;D:\spark\spark-3.1.1-bin-hadoop3.2\jars\spark-network-shuffle_2.12-3.1.1.jar;D:\spark\spark-3.1.1-bin-hadoop3.2\jars\spark-repl_2.12-3.1.1.jar;D:\spark\spark-3.1.1-bin-hadoop3.2\jars\spark-sketch_2.12-3.1.1.jar;D:\spark\spark-3.1.1-bin-hadoop3.2\jars\spark-sql_2.12-3.1.1.jar;D:\spark\spark-3.1.1-bin-hadoop3.2\jars\spark-streaming_2.12-3.1.1.jar;D:\spark\spark-3.1.1-bin-hadoop3.2\jars\spark-tags_2.12-3.1.1-tests.jar;D:\spark\spark-3.1.1-bin-hadoop3.2\jars\spark-tags_2.12-3.1.1.jar;D:\spark\spark-3.1.1-bin-hadoop3.2\jars\spark-unsafe_2.12-3.1.1.jar;D:\spark\spark-3.1.1-bin-hadoop3.2\jars\spark-yarn_2.12-3.1.1.jar;D:\spark\spark-3.1.1-bin-hadoop3.2\jars\spire-macros_2.12-0.17.0-M1.jar;D:\spark\spark-3.1.1-bin-hadoop3.2\jars\spire-platform_2.12-0.17.0-M1.jar;D:\spark\spark-3.1.1-bin-hadoop3.2\jars\spire-util_2.12-0.17.0-M1.jar;D:\spark\spark-3.1.1-bin-hadoop3.2\jars\spire_2.12-0.17.0-M1.jar;D:\spark\spark-3.1.1-bin-hadoop3.2\jars\ST4-4.0.4.jar;D:\spark\spark-3.1.1-bin-hadoop3.2\jars\stax-api-1.0.1.jar;D:\spark\spark-3.1.1-bin-hadoop3.2\jars\stax2-api-3.1.4.jar;D:\spark\spark-3.1.1-bin-hadoop3.2\jars\stream-2.9.6.jar;D:\spark\spark-3.1.1-bin-hadoop3.2\jars\super-csv-2.2.0.jar;D:\spark\spark-3.1.1-bin-hadoop3.2\jars\threeten-extra-1.5.0.jar;D:\spark\spark-3.1.1-bin-hadoop3.2\jars\token-provider-1.0.1.jar;D:\spark\spark-3.1.1-bin-hadoop3.2\jars\transaction-api-1.1.jar;D:\spark\spark-3.1.1-bin-hadoop3.2\jars\univocity-parsers-2.9.1.jar;D:\spark\spark-3.1.1-bin-hadoop3.2\jars\velocity-1.5.jar;D:\spark\spark-3.1.1-bin-hadoop3.2\jars\woodstox-core-5.0.3.jar;D:\spark\spark-3.1.1-bin-hadoop3.2\jars\xbean-asm7-shaded-4.15.jar;D:\spark\spark-3.1.1-bin-hadoop3.2\jars\xz-1.5.jar;D:\spark\spark-3.1.1-bin-hadoop3.2\jars\zjsonpatch-0.3.0.jar;D:\spark\spark-3.1.1-bin-hadoop3.2\jars\zookeeper-3.4.14.jar;D:\spark\spark-3.1.1-bin-hadoop3.2\jars\zstd-jni-1.4.8-1.jar;D:\spark\spark-3.1.1-bin-hadoop3.2\jars\arrow-vector-2.0.0.jar" car.LoadModelRideHailing Using Spark's default log4j profile: org/apache/spark/log4j-defaults.properties 25/06/08 17:05:07 INFO SparkContext: Running Spark version 3.1.1 25/06/08 17:05:07 INFO ResourceUtils: ============================================================== 25/06/08 17:05:07 INFO ResourceUtils: No custom resources configured for spark.driver. 25/06/08 17:05:07 INFO ResourceUtils: ============================================================== 25/06/08 17:05:07 INFO SparkContext: Submitted application: LoadModelRideHailing 25/06/08 17:05:07 INFO ResourceProfile: Default ResourceProfile created, executor resources: Map(cores -> name: cores, amount: 1, script: , vendor: , memory -> name: memory, amount: 1024, script: , vendor: , offHeap -> name: offHeap, amount: 0, script: , vendor: ), task resources: Map(cpus -> name: cpus, amount: 1.0) 25/06/08 17:05:07 INFO ResourceProfile: Limiting resource is cpu 25/06/08 17:05:07 INFO ResourceProfileManager: Added ResourceProfile id: 0 25/06/08 17:05:07 INFO SecurityManager: Changing view acls to: wyatt 25/06/08 17:05:07 INFO SecurityManager: Changing modify acls to: wyatt 25/06/08 17:05:07 INFO SecurityManager: Changing view acls groups to: 25/06/08 17:05:07 INFO SecurityManager: Changing modify acls groups to: 25/06/08 17:05:07 INFO SecurityManager: SecurityManager: authentication disabled; ui acls disabled; users with view permissions: Set(wyatt); groups with view permissions: Set(); users with modify permissions: Set(wyatt); groups with modify permissions: Set() 25/06/08 17:05:07 INFO Utils: Successfully started service 'sparkDriver' on port 59361. 25/06/08 17:05:07 INFO SparkEnv: Registering MapOutputTracker 25/06/08 17:05:07 INFO SparkEnv: Registering BlockManagerMaster 25/06/08 17:05:08 INFO BlockManagerMasterEndpoint: Using org.apache.spark.storage.DefaultTopologyMapper for getting topology information 25/06/08 17:05:08 INFO BlockManagerMasterEndpoint: BlockManagerMasterEndpoint up 25/06/08 17:05:08 INFO SparkEnv: Registering BlockManagerMasterHeartbeat 25/06/08 17:05:08 INFO DiskBlockManager: Created local directory at C:\Users\wyatt\AppData\Local\Temp\blockmgr-8fe065e2-024c-4e2f-8662-45d2fe3de444 25/06/08 17:05:08 INFO MemoryStore: MemoryStore started with capacity 1899.0 MiB 25/06/08 17:05:08 INFO SparkEnv: Registering OutputCommitCoordinator 25/06/08 17:05:08 INFO Utils: Successfully started service 'SparkUI' on port 4040. 25/06/08 17:05:08 INFO SparkUI: Bound SparkUI to 0.0.0.0, and started at http://windows10.microdone.cn:4040 25/06/08 17:05:08 INFO Executor: Starting executor ID driver on host windows10.microdone.cn 25/06/08 17:05:08 INFO Utils: Successfully started service 'org.apache.spark.network.netty.NettyBlockTransferService' on port 59392. 25/06/08 17:05:08 INFO NettyBlockTransferService: Server created on windows10.microdone.cn:59392 25/06/08 17:05:08 INFO BlockManager: Using org.apache.spark.storage.RandomBlockReplicationPolicy for block replication policy 25/06/08 17:05:08 INFO BlockManagerMaster: Registering BlockManager BlockManagerId(driver, windows10.microdone.cn, 59392, None) 25/06/08 17:05:08 INFO BlockManagerMasterEndpoint: Registering block manager windows10.microdone.cn:59392 with 1899.0 MiB RAM, BlockManagerId(driver, windows10.microdone.cn, 59392, None) 25/06/08 17:05:08 INFO BlockManagerMaster: Registered BlockManager BlockManagerId(driver, windows10.microdone.cn, 59392, None) 25/06/08 17:05:08 INFO BlockManager: Initialized BlockManager: BlockManagerId(driver, windows10.microdone.cn, 59392, None) Exception in thread "main" java.lang.IllegalArgumentException: 测试数据中不包含 features 列,请检查数据! at car.LoadModelRideHailing$.main(LoadModelRideHailing.scala:23) at car.LoadModelRideHailing.main(LoadModelRideHailing.scala) 进程已结束,退出代码为 1 package car import org.apache.spark.ml.classification.{LogisticRegressionModel, RandomForestClassificationModel} import org.apache.spark.ml.evaluation.MulticlassClassificationEvaluator import org.apache.spark.sql.{SparkSession, functions => F} object LoadModelRideHailing { def main(args: Array[String]): Unit = { val spark = SparkSession.builder() .master("local[3]") .appName("LoadModelRideHailing") .getOrCreate() spark.sparkContext.setLogLevel("Error") // 使用经过特征工程处理后的测试数据 val TestData = spark.read.option("header", "true").csv("C:\\Users\\wyatt\\Documents\\ride_hailing_test_data.csv") // 将 label 列转换为数值类型 val testDataWithNumericLabel = TestData.withColumn("label", F.col("label").cast("double")) // 检查 features 列是否存在 if (!testDataWithNumericLabel.columns.contains("features")) { throw new IllegalArgumentException("测试数据中不包含 features 列,请检查数据!") } // 修正后的模型路径(确保文件夹存在且包含元数据) val LogisticModel = LogisticRegressionModel.load("C:\\Users\\wyatt\\Documents\\ride_hailing_logistic_model") // 示例路径 val LogisticPre = LogisticModel.transform(testDataWithNumericLabel) val LogisticAcc = new MulticlassClassificationEvaluator() .setLabelCol("label") .setPredictionCol("prediction") .setMetricName("accuracy") .evaluate(LogisticPre) println("逻辑回归模型后期数据准确率:" + LogisticAcc) // 随机森林模型路径同步修正 val RandomForest = RandomForestClassificationModel.load("C:\\Users\\wyatt\\Documents\\ride_hailing_random_forest_model") // 示例路径 val RandomForestPre = RandomForest.transform(testDataWithNumericLabel) val RandomForestAcc = new MulticlassClassificationEvaluator() .setLabelCol("label") .setPredictionCol("prediction") .setMetricName("accuracy") .evaluate(RandomForestPre) println("随机森林模型后期数据准确率:" + RandomForestAcc) spark.stop() } }
06-09
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