WO2017101425A1 - 用于媒体资源检索的设备、方法及*** - Google Patents

用于媒体资源检索的设备、方法及*** Download PDF

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WO2017101425A1
WO2017101425A1 PCT/CN2016/089556 CN2016089556W WO2017101425A1 WO 2017101425 A1 WO2017101425 A1 WO 2017101425A1 CN 2016089556 W CN2016089556 W CN 2016089556W WO 2017101425 A1 WO2017101425 A1 WO 2017101425A1
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retrieval
media
information
client
file
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PCT/CN2016/089556
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French (fr)
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朱家星
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乐视控股（北京）有限公司
乐视网信息技术（北京）股份有限公司
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Priority to US15/243,179 priority Critical patent/US20170169044A1/en
Publication of WO2017101425A1 publication Critical patent/WO2017101425A1/zh

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/60—Information retrieval; Database structures therefor; File system structures therefor of audio data
    • G06F16/68—Retrieval characterised by using metadata, e.g. metadata not derived from the content or metadata generated manually
    • G06F16/686—Retrieval characterised by using metadata, e.g. metadata not derived from the content or metadata generated manually using information manually generated, e.g. tags, keywords, comments, title or artist information, time, location or usage information, user ratings
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/40—Information retrieval; Database structures therefor; File system structures therefor of multimedia data, e.g. slideshows comprising image and additional audio data
    • G06F16/48—Retrieval characterised by using metadata, e.g. metadata not derived from the content or metadata generated manually
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/70—Information retrieval; Database structures therefor; File system structures therefor of video data
    • G06F16/78—Retrieval characterised by using metadata, e.g. metadata not derived from the content or metadata generated manually

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  • Embodiments of the present invention relate to the field of information technology, and in particular, to an apparatus, method, and system for media resource retrieval.
  • the media file is mainly stored in the server of the system, and the user can send a retrieval request through a client (for example, a personal computer, a mobile phone, a tablet, etc.), and the server receives the retrieval request and then obtains the retrieval request.
  • the keywords are extracted (for example, " ⁇ "), and the corresponding information is extracted from the stored media files by like matching. Since the number of media files stored by the server is quite large, the use of like matching to extract corresponding information from a large number of stored media files is very slow, and the workload of the server is also large, eventually resulting in a retrieval request to the user. The loudness is slow and the user experience is poor.
  • An object of an embodiment of the present invention is to provide an apparatus, method, and system for media resource retrieval.
  • System which enables the server in the media asset management system to quickly find the corresponding information and feed back to the client after receiving the retrieval request from the client, and the response speed is faster.
  • an embodiment of the present invention provides an apparatus for media resource retrieval, where the apparatus includes: receiving means for receiving a retrieval instruction from a client; and processing means for extracting keywords from the retrieval instruction And extracting related information with the keyword from the preset inverted index file according to the keyword, and feeding back the information to the client as a retrieval result, wherein the inverted index file stores relevant media Information about the file.
  • the related information may include one or more of the following: a media file name, a play platform, a payment platform, and a media file type.
  • the receiving device is further configured to receive a media file; and the processing device is further configured to extract related information from the media file and store the information in the inverted index file.
  • the inverted index file may be stored in a cache of the processing device.
  • an embodiment of the present invention further provides a media resource retrieval system, the system comprising: a client, configured to send a retrieval instruction; and a server, where the server includes the foregoing device for media resource retrieval.
  • an embodiment of the present invention further provides a method for media resource retrieval, the method comprising: receiving a retrieval instruction from a client; extracting a keyword from the retrieval instruction, and retrieving from the preset according to the keyword Relevant information having the keyword is extracted from the index file, and the information is fed back to the client as a retrieval result, wherein related information about the media file is stored in the inverted index file.
  • the related information may include one or more of the following: a media file name, a play platform, a payment platform, and a media file type.
  • the method may further include: receiving a media file; and extracting related information from the media file, and storing the information in the inverted index file.
  • the inverted index file can be stored in the cache.
  • FIG. 1 is a schematic structural diagram of a media resource retrieval device according to an embodiment of the present invention.
  • FIG. 2 is a flowchart of a media resource retrieval method according to an embodiment of the present invention.
  • FIG. 1 is a schematic structural diagram of a media resource retrieval device according to an embodiment of the present invention.
  • an embodiment of the present invention provides a media resource retrieval system, where the system includes a client 100 for transmitting a retrieval instruction, and a server 200 that includes a device for media resource retrieval.
  • the device for media resource retrieval the device includes: a receiving device 210, configured to The client receives the retrieval instruction; the processing device 220 is configured to extract a keyword from the retrieval instruction, and extract relevant information (including a media file name) having the keyword from the preset inverted index file according to the keyword , the playback platform, the payment platform, and the media file type, etc.), and feed the information back to the client as a retrieval result.
  • the inverted index file stores related information about the media file. For example, it can store attribute values (eg, file name, play platform, etc.) of the media file and the address of the media file having the attribute value. That is, each record in the inverted index file contains an attribute value and the address of each media file having the attribute value.
  • attribute values eg, file name, play platform, etc.
  • each record in the inverted index file contains an attribute value and the address of each media file having the attribute value.
  • the processing device may search for the inverted index file, determine whether there is a media file whose name is “ ⁇ ”, and provide feedback to the client according to the search result. In the case that there is a media file whose media file name is “ ⁇ ”, the address of the media file may also be fed back to the client together, so that the client accesses the media file.
  • the processing device may search the inverted index file to determine whether the media file of the media file type “MP4” exists, and provide feedback to the client according to the search result. In the case that there is a media file whose media file type is “MP4”, the address of the media file may also be fed back to the client, so that the client accesses the media file.
  • the preset inverted index file may be generated by: the receiving device may receive a media file; and the processing device further extracts a correlation from the media file for each media file received by the receiving device Information (ie, attribute values such as media file names, playback platforms, payment platforms, media file types, etc.) and stores this information in the inverted index file.
  • Information ie, attribute values such as media file names, playback platforms, payment platforms, media file types, etc.
  • the address of the media file is also stored in the inverted index file.
  • the attribute value and related information are not limited to the above enumerated contents, and may also be, for example, a media text.
  • the code rate information of the piece, etc., the embodiment of the present invention is not limited thereto.
  • the device may be a search platform based on ElasticSearch technology, which may provide retrieval results as a node in a cluster implementing retrieval functions.
  • the ElasticSearch technology search platform is capable of real-time search and is stable, reliable and fast.
  • the inverted index file can be stored in a cache of the processing device. Since the data access speed in the cache is higher than the speed of accessing the data on the hard disk, the arrangement speed can further improve the retrieval speed.
  • FIG. 2 is a flowchart of a media resource retrieval method according to an embodiment of the present invention.
  • an embodiment of the present invention further provides a method for media resource retrieval, the method comprising: receiving a retrieval instruction from a client; extracting a keyword from the retrieval instruction, and extracting a keyword according to the keyword Extracting relevant information (including media file name, playing platform, payment platform, media file type, etc.) with the keyword in the inverted index file, and feeding back the information to the client as a retrieval result, wherein The inverted index file stores related information about the media file.
  • each record in the inverted index file contains an attribute value and has the attribute.
  • the address of each media file of the value so the server can directly extract the information corresponding to the retrieval instruction from the inverted index file after receiving the retrieval instruction from the client, and feed back the information to the client.
  • this method significantly improves the retrieval speed of media files and alleviates the workload of the server.
  • the preset inverted index file may be generated by: receiving a media file; and extracting related information from the media file (ie, attribute values, such as media file name, play platform, payment platform, and media file type) Etc.) and store this information in the inverted index file. That is to say, each time the server stores a media file, the attribute information of the media file is extracted and stored in the inverted index file for subsequent retrieval. Of course, storing the inverted cable at the same time Also included in the index file is the address of the media file.
  • the attribute value and the related information are not limited to the above-mentioned contents, and may be, for example, the code rate information of the media file, and the like, and the embodiment of the present invention is not limited thereto.
  • the method can be based on the ElasticSearch technology, which can provide retrieval results through a cluster with retrieval functions, and can achieve real-time search and stable, reliable, and fast effects.
  • the inverted index file can be stored in the cache. Since the data access speed in the cache is higher than the speed of accessing the data on the hard disk, the arrangement speed can further improve the retrieval speed.
  • the server can directly extract the information corresponding to the retrieval instruction from the inverted index file after receiving the retrieval instruction from the client. And feed this information back to the client.
  • this method significantly improves the retrieval speed of media files and alleviates the workload of the server.
  • the database of the server since the media file contains a lot of information (such as rate information), the database of the server stores a lot of redundant fields in order to reduce the generation of the intermediate table when storing the information.
  • the information can be directly stored in the inverted index file, and the database does not need to be expanded, thereby reducing the pressure on the storage capacity of the database.
  • any combination of various different embodiments of the embodiments of the present invention may also be performed. As long as it does not deviate from the idea of the embodiments of the present invention, it should also be regarded as the content disclosed in the embodiments of the present invention.

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Abstract

一种用于媒体资源检索的设备、方法及***，该设备包含：接收装置（210），用于从客户端（100）接收检索指令；处理装置（220），用于从所述检索指令内提取关键词，并根据该关键词从倒排索引文件内提取具有该关键词的相关信息，并将该信息作为检索结果反馈至所述客户端（100），其中所述倒排索引文件内存储有有关媒体文件的相关信息。通过上述技术方案，所有有关媒体文件的信息均被预先存入倒排索引文件内，服务器（200）在接收到来自客户端（100）的检索指令之后可直接从该倒排索引文件内提取与该检索指令相符合的信息，并将该信息反馈至客户端（100）。相比于现有的采用like匹配的方式来匹配媒体文件，该方式显著提高了对媒体文件的检索速度，并缓解了服务器（200）的工作负荷。

Description

用于媒体资源检索的设备、方法及***
本申请要求于2015年12月15日提交中国专利局、申请号为201510930307.6的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明实施例涉及信息技术领域，具体地，涉及一种用于媒体资源检索的设备、方法及***。
背景技术
随着信息技术的发展，各类娱乐影像资料出现了爆发式的增长，现有的媒体资产管理***(Media Asset Management System)存储有海量媒体文件(例如，视频、音频、图片等等)。对于如何快速从该媒体资产管理***检索出用户想要的文件，则成为了本行业亟待解决的问题。
在现有的媒体资产管理***中，媒体文件主要存储于该***的服务器内，用户可通过客户端(例如，个人计算机、手机、平板电脑等)发送检索请求，服务器收到该检索请求之后从中提取关键词(例如，“甄嬛传”)，并采用like匹配的方式从所存储的媒体文件中提取相应的信息。由于服务器所存储的媒体文件的数量相当之巨大，采用like匹配的方式来从所存储的大量媒体文件内提取相应的信息速度非常慢，服务器的工作负荷也较大，最终导致对用户的检索请求响度速度偏慢，用户体验较差。
发明内容
本发明实施例的目的是提供一种用于媒体资源检索的设备、方法及系 统，其可使得媒体资产管理***中的服务器在收到来自客户端的检索请求之后迅速找到相应的信息并反馈给客户端，响应速度较快。
为了实现上述目的，本发明实施例提供一种用于媒体资源检索的设备，该设备包含：接收装置，用于从客户端接收检索指令；处理装置，用于从所述检索指令内提取关键词，并根据该关键词从预置的倒排索引文件内提取具有该关键词的相关信息，并将该信息作为检索结果反馈至所述客户端，其中所述倒排索引文件内存储有有关媒体文件的相关信息。
其中，所述相关信息可包含以下中的一者或多者：媒体文件名称、播放平台、付费平台以及媒体文件类型。
其中，所述接收装置还可用于接收媒体文件；以及所述处理装置还可用于从所述媒体文件提取相关信息，并将该信息存入所述倒排索引文件内。
其中，所述倒排索引文件可存储于所述处理装置的缓存内。
相应地，本发明实施例还提供一种媒体资源检索***，该***包含：客户端，用于发送检索指令；以及服务器，该服务器包含上述用于媒体资源检索的设备。
相应地，本发明实施例还提供一种用于媒体资源检索的方法，该方法包括：从客户端接收检索指令；从所述检索指令内提取关键词，并根据该关键词从预置的倒排索引文件内提取具有该关键词的相关信息，并将该信息作为检索结果反馈至所述客户端，其中所述倒排索引文件内存储有有关媒体文件的相关信息。
其中，所述相关信息可包含以下中的一者或多者：媒体文件名称、播放平台、付费平台以及媒体文件类型。
其中，所述方法还可包括：接收媒体文件；以及从所述媒体文件提取相关信息，并将该信息存入所述倒排索引文件内。
其中，所述倒排索引文件可存储于缓存内。
通过上述技术方案，所有有关媒体文件的信息均被预先存入倒排索引文件内，服务器在接收到来自客户端的检索指令之后可直接从该倒排索引文件内提取与该检索指令相符合的信息，并将该信息反馈至客户端。相比于现有的采用like匹配的方式来匹配媒体文件，该方式显著提高了对媒体文件的检索速度，并缓解了服务器的工作负荷。
本发明实施例的其它特征和优点将在随后的具体实施方式部分予以详细说明。
附图说明
附图是用来提供对本发明实施例的进一步理解，并且构成说明书的一部分，与下面的具体实施方式一起用于解释本发明实施例，但并不构成对本发明实施例的限制。在附图中：
图1为本发明实施例提供的媒体资源检索设备的结构示意图；以及
图2为本发明实施例提供的媒体资源检索方法的流程图。
具体实施方式
以下结合附图对本发明具体实施方式进行详细说明。应当理解的是，此处所描述的具体实施方式仅用于说明和解释本发明实施例，并不用于限制本发明实施例。
图1为本发明实施例提供的媒体资源检索设备的结构示意图。如图1所示，本发明实施例提供了一种媒体资源检索***，该***包含客户端100，用于发送检索指令；以及服务器200，该服务器200包含用于媒体资源检索的设备。该用于媒体资源检索的设备该设备包含：接收装置210，用于从客 户端接收检索指令；处理装置220，用于从所述检索指令内提取关键词，并根据该关键词从预置的倒排索引文件内提取具有该关键词的相关信息(包含诸如媒体文件名称、播放平台、付费平台以及媒体文件类型等等)，并将该信息作为检索结果反馈至所述客户端。
其中，所述倒排索引文件内存储有有关媒体文件的相关信息。例如，其可存储有媒体文件的属性值(例如，文件名称、播放平台等)以及具有该属性值的媒体文件的地址。也就是说，倒排索引文件内的每一项记录均包含一个属性值和具有该属性值的各媒体文件的地址。在一般的数据存储及检索方式，均是通过遍历所存储的每一文件，确定该文件的属性，并将该属性与检索关键词进行比较，这样较为费时，而通过本发明实施例的方案，可很轻松得从所存储的所有媒体文件的属性值寻找到符合检索关键词的属性，并确定具有该属性的媒体文件的地址。以检索词为“甄嬛传”为例，处理装置可搜索倒排索引文件，判断是否存在所述媒体文件名称为“甄嬛传”的媒体文件，并根据搜索结果向客户端进行反馈。在存在媒体文件名称为“甄嬛传”的媒体文件的情况下，还可将该媒体文件的地址一同反馈给客户端，以便该客户端进行访问该媒体文件。以检索词为“MP4”为例，处理装置可搜索倒排索引文件，判断是否存在所述媒体文件类型为“MP4”的媒体文件，并根据搜索结果向客户端进行反馈。在存在媒体文件类型为“MP4”的媒体文件的情况下，还可将该媒体文件的地址一同反馈给客户端，以便该客户端进行访问该媒体文件。
所述预置的倒排索引文件可通过以下操作而被生成：所述接收装置可接收媒体文件；以及所述处理装置还针对所述接收装置接收的每一媒体文件，从该媒体文件提取相关信息(即，属性值，例如媒体文件名称、播放平台、付费平台以及媒体文件类型等等)，并将该信息存入所述倒排索引文件内。当然，同时存储所述倒排索引文件内的还有所述媒体文件的地址。需要说明的是，所述属性值及相关信息并不限于上述列举的内容，还可例如为媒体文 件的码率信息等等，本发明实施例并不限于此。
在一个实施例中，所述设备可为基于ElasticSearch技术的搜索平台，该设备可作为实现检索功能的集群中的一节点来提供检索结果。该ElasticSearch技术的搜索平台能够达到实时搜索且稳定、可靠、快速的效果。
在一个实施例中，所述倒排索引文件可存储于所述处理装置的缓存内。由于缓存内的数据存取速度要高于对硬盘上的数据进行存取的速度，通过该布置可进一步提升检索速度。
图2为本发明实施例提供的媒体资源检索方法的流程图。如图2所示，本发明实施例还提供一种用于媒体资源检索的方法，该方法包括：从客户端接收检索指令；从所述检索指令内提取关键词，并根据该关键词从预置的倒排索引文件内提取具有该关键词的相关信息(包含诸如媒体文件名称、播放平台、付费平台以及媒体文件类型等等)，并将该信息作为检索结果反馈至所述客户端，其中所述倒排索引文件内存储有有关媒体文件的相关信息。藉此，由于所有有关媒体文件的信息均被预先存入倒排索引文件内，且有别于一般的文件存储方式，倒排索引文件内的每一项记录均包含一个属性值和具有该属性值的各媒体文件的地址，因此服务器在接收到来自客户端的检索指令之后可直接从该倒排索引文件内提取与该检索指令相符合的信息，并将该信息反馈至客户端。相比于现有的采用like匹配的方式来匹配媒体文件，该方式显著提高了对媒体文件的检索速度，并缓解了服务器的工作负荷。
所述预置的倒排索引文件可通过以下操作而被生成：接收媒体文件；以及从所述媒体文件提取相关信息(即，属性值，例如媒体文件名称、播放平台、付费平台以及媒体文件类型等等)，并将该信息存入所述倒排索引文件内。也就是说，服务器每存储一媒体文件，均会提取该媒体文件的属性信息存入所述倒排索引文件内以用于后续检索之用。当然，同时存储所述倒排索 引文件内的还有所述媒体文件的地址。需要说明的是，所述属性值及相关信息并不限于上述列举的内容，还可例如为媒体文件的码率信息等等，本发明实施例并不限于此。
其中，所述方法可基于ElasticSearch技术，该技术可通过具有检索功能的集群来提供检索结果，能够达到实时搜索且稳定、可靠、快速的效果。
其中，所述倒排索引文件可存储于缓存内。由于缓存内的数据存取速度要高于对硬盘上的数据进行存取的速度，通过该布置可进一步提升检索速度。
通过上述技术方案，所有有关媒体文件的信息均被预先存入倒排索引文件内，服务器在接收到来自客户端的检索指令之后可直接从该倒排索引文件内提取与该检索指令相符合的信息，并将该信息反馈至客户端。相比于现有的采用like匹配的方式来匹配媒体文件，该方式显著提高了对媒体文件的检索速度，并缓解了服务器的工作负荷。另外，从技术角度来说，由于媒体文件文件包含很多方面的信息(诸如，码率信息)，服务器的数据库在存储这些信息时，为了减少中间表的生成，会产生很多冗余字段，而在采用本申请方案之后，这些信息可以直接存入倒排索引文件内，不需要再对数据库进行扩展，减小了对数据库存储容量的压力。
以上结合附图详细描述了本发明实施例的具体实施方式，但是，本发明实施例并不限于上述实施方式中的具体细节，在本发明实施例的技术构思范围内，可以对本发明实施例的技术方案进行多种简单变型，这些简单变型均属于本发明实施例的保护范围。
另外需要说明的是，在上述具体实施方式中所描述的各个具体技术特征，在不矛盾的情况下，可以通过任何合适的方式进行组合。为了避免不必要的重复，本发明实施例对各种可能的组合方式不再另行说明。
此外，本发明实施例的各种不同的实施方式之间也可以进行任意组合， 只要其不违背本发明实施例的思想，其同样应当视为本发明实施例所公开的内容。

Claims (9)

  1. 一种用于媒体资源检索的设备，包含：
    接收装置，用于从客户端接收检索指令；
    处理装置，用于从所述检索指令内提取关键词，并根据该关键词从预置的倒排索引文件内提取具有该关键词的相关信息，并将该信息作为检索结果反馈至所述客户端，其中所述倒排索引文件内存储有有关媒体文件的相关信息。
  2. 根据权利要求1所述的设备，其中，所述相关信息包含以下中的一者或多者：媒体文件名称、播放平台、付费平台以及媒体文件类型。
  3. 根据权利要求1或2所述的设备，其中，
    所述接收装置还用于接收媒体文件；以及
    所述处理装置还用于从所述媒体文件提取相关信息，并将该信息存入所述倒排索引文件内。
  4. 根据权利要求1～3中任一项所述的设备，其中，所述倒排索引文件存储于所述处理装置的缓存内。
  5. 一种媒体资源检索***，包含：
    客户端，用于发送检索指令；以及
    服务器，该服务器包含根据权利要求1-4中任一项权利要求所述的用于媒体资源检索的设备。
  6. 一种用于媒体资源检索的方法，包括：
    从客户端接收检索指令；
    从所述检索指令内提取关键词，并根据该关键词从预置的倒排索引文件内提取具有该关键词的相关信息，并将该信息作为检索结果反馈至所述客户端，其中所述倒排索引文件内存储有有关媒体文件的相关信息。
  7. 根据权利要求6所述的方法，其中，所述相关信息包含以下中的一者或多者：媒体文件名称、播放平台、付费平台以及媒体文件类型。
  8. 根据权利要求6或7所述的方法，其中，该方法还包括：
    接收媒体文件；以及
    从所述媒体文件提取相关信息，并将该信息存入所述倒排索引文件内。
  9. 根据权利要求6～8中任一项所述的方法，其中，所述倒排索引文件存储于缓存内。
PCT/CN2016/089556 2015-12-15 2016-07-10 用于媒体资源检索的设备、方法及*** WO2017101425A1 (zh)

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