CN102902681A - Group information search method and device and instant messaging tool - Google Patents

Group information search method and device and instant messaging tool Download PDF

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CN102902681A
CN102902681A CN2011102108750A CN201110210875A CN102902681A CN 102902681 A CN102902681 A CN 102902681A CN 2011102108750 A CN2011102108750 A CN 2011102108750A CN 201110210875 A CN201110210875 A CN 201110210875A CN 102902681 A CN102902681 A CN 102902681A
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group
technorati authority
attribute
members
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CN102902681B (en
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刘致远
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Tencent Technology Shenzhen Co Ltd
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Tencent Technology Shenzhen Co Ltd
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Abstract

The invention is applicable to the field of communication and provides group information search method and device and an instant messaging tool. The group information search method includes the steps of receiving user-input key works for describing a group attribute, responding to a user's search request for the group-attribute-based key words which represent chat topics concerned by group members; calculating group authority of each group stored in a data base; and displaying a group list in a specified range for the group authorities. The group authorities are used for describing activities of all members in the groups under the specified group attributes. The group authorities of the groups under the group attributes are determined, and then user-required group information is searched according to the determined group authorities. Therefore, user-required group information can be searched from group information in a larger range by the search method, the group authority of certain group is determined not to be confused by a group name under the specified group attribute according to all chat records of the group, the user can be provided with more accurate group information, search accuracy is improved, and user experience is improved.

Description

One population information searching method, device and immediate communication tool
Technical field
The invention belongs to the communications field, relate in particular to a population information searching method, device and immediate communication tool.
Background technology
Each Instant Messenger (IM) software has an identify label number, and generally, this Instant Messenger (IM) software has also comprised a plurality of groups.Wherein, " group " here refers to the group of this Instant Messenger (IM) software, is an immediate communication platform with user's foundation of general character.
The user is according to their different hobby separately, uses the identify label number that is associated with their true identity to form a group of Instant Messenger (IM) software, because that hobby can have is a plurality of, so each user can add a plurality of groups according to group's title.Such as, suppose that the party A-subscriber is interested in automobile, tourism, real estate, its identify label number in the instant messaging chat software is XXX, then this party A-subscriber searches by the group, obtain respectively the group title corresponding with automobile, tourism, real estate, re-use XXX and add simultaneously in the instant messaging chat software about the group of automobile, the group of tourism and the group of real estate.
It is rough searching usually that existing group searches, and seek scope is narrower.Take the instant messaging chat software as example, the user can only be by dual mode search group, and a kind of is accurately to search, and a kind of is according to condition to search, specifically as shown in Figure 1.(1) accurately searches the group's who refers to that known road need to search for identify label number, directly input this group identify label number and obtain group title, and add this group according to group's title of obtaining.Because group's identify label number can only just can know by friend or other customer presentations, therefore, search the user by group's identify label number and wish the usable range of group's title of adding and limited.(2) according to condition search group's title that the keyword search that refers to according to user's input goes out to comprise this key word, defined realm type is searched group title when perhaps creating group by group user, selects from the result of search and wishes the group's title that adds and add this group.The method seek scope is narrow, and the result is fuzzy, and seek error is larger, can not give the best experience of user.After input " automobile " in " search key " input frame, to search all groups title that comprises " automobile " two words, such as " auto repair ", " love automobile " etc., but the group's title that comprises " car ", " sport car " or " gas car " etc. and do not comprise " automobile " will be filtered, and the general character of the group members in the above-mentioned group very likely is automobile, therefore filters out group's title of the key word that does not comprise user's input so that the user can't choose best group by group's title.
Summary of the invention
The embodiment of the invention provides a population information searching method, be intended to solve existing group information searching method when searching group information, only search that the seek scope that the group title that comprises user entered keyword information causes is narrow, the result fuzzy, seek error greatly and the problem of poor user experience.
The embodiment of the invention is achieved in that a population information searching method, and described method comprises the steps:
Receive the key word for description group attribute of user's input, and the response user is based on the searching request of the key word of described group's attribute, the topic that the key table syndrome member of described group of attributes pays close attention to when chatting;
Group's technorati authority of each group of storing in the computational data storehouse, described group's technorati authority is used for describing the active degree of all group members of group under the designated group attribute;
Show the group-list of group's technorati authority in specified scope.
Another purpose of the embodiment of the invention is to provide a population information searching device, and described device comprises:
The key word receiving element is used for the key word that is used for describing group's attribute of reception user input, and responds the user based on the searching request of the key word of described group's attribute, the topic that the key table syndrome member of described group's attribute pays close attention to when chatting;
Group's technorati authority computing unit is used for the group technorati authority of each group of storing in the computational data storehouse, and described group's technorati authority is used for describing group active degree of all group members under the designated group attribute;
Group's information display unit is used for showing the group-list of group's technorati authority in specified scope.
Another purpose of the embodiment of the invention is to provide a kind of immediate communication tool that comprises above-mentioned group's information searching device.
In the embodiment of the invention, if the user is at the key word of searching group's attribute of input in the frame of Instant Messenger (IM) software, then this Instant Messenger (IM) software is at first determined dyeing source (namely in group's technorati authority of designated group attribute greater than 0 group members) according to chat record, again according to the dyeing source of determining and coloring algorithm iterative computation group in group's technorati authority of this designated group attribute, determine whether to show this group information according to the group in group's technorati authority size of this designated group attribute.Because the group's information that finds is to determine in group's technorati authority of designated group attribute according to the group, and the group is to determine by the chat record of whole group members in group's technorati authority of group's attribute of appointment, therefore the lookup method of the present embodiment can find out group's information that the user needs from wider group's information, and determine that according to whole chat records of group this group can not be subject to the fascination of group title in group's technorati authority of group's attribute of appointment, can find more accurately group's information for the user, improved and searched accuracy, thereby promoted user's good experience.
Description of drawings
Fig. 1 is group's information searching interface that prior art provides;
Fig. 2 be first embodiment of the invention provide group information searching method process flow diagram;
Fig. 3 is the structural drawing of group's information searching device of providing of second embodiment of the invention.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
In the embodiment of the invention, input the key word of designated group attribute the user after, all groups and search, show group's information of user's needs in group's technorati authority of this designated group attribute in the immediate communication tool computational data storehouse according to group's technorati authority of calculating.
It is a kind of that the embodiment of the invention provides: group's information searching method, device and immediate communication tool.
Described method comprises: receive the key word for description group attribute of user's input, and the response user is based on the searching request of the key word of described group's attribute, the topic that the key table syndrome member of described group of attributes pays close attention to when chatting;
Group's technorati authority of each group of storing in the computational data storehouse, described group's technorati authority is used for describing the active degree of all group members of group under the designated group attribute;
Show the group-list of group's technorati authority in specified scope.
Described device comprises: the key word receiving element, be used for receiving the key word that is used for describing group's attribute of user's input, and the response user is based on the searching request of the key word of described group's attribute, the topic that the key table syndrome member of described group of attributes pays close attention to when chatting;
Group's technorati authority computing unit is used for the group technorati authority of each group of storing in the computational data storehouse, and described group's technorati authority is used for describing group active degree of all group members under the designated group attribute;
Group's information display unit is used for showing the group-list of group's technorati authority in specified scope.
Described equipment comprises: the immediate communication tool that comprises above-mentioned group's information searching device.
In the embodiment of the invention, if the user is at the key word of searching group's attribute of input in the frame of Instant Messenger (IM) software, then this Instant Messenger (IM) software is at first determined dyeing source (namely in group's technorati authority of designated group attribute greater than 0 group members) according to chat record, again according to the dyeing source of determining and coloring algorithm iterative computation group in group's technorati authority of this designated group attribute, determine whether to show this group information according to the group in group's technorati authority size of this designated group attribute.Because the group's information that finds is to determine in group's technorati authority of group's attribute of appointment according to the group, and the group is to determine by the chat record of whole group members in group's technorati authority of designated group attribute, therefore the lookup method of the present embodiment can find out group's information that the user needs from wider group's information, and determine that according to whole chat records of group this group can not be subject to the fascination of group title in group's technorati authority of group's attribute of appointment, can find more accurately group's information for the user, improved and searched accuracy, thereby promoted user's good experience.
For technical solutions according to the invention are described, describe below by specific embodiment.
Embodiment one:
Fig. 2 shows group's information searching method flow process that first embodiment of the invention provides, in the present embodiment, the user is after the immediate communication tool input is used for describing the key word of group's attribute, immediate communication tool is searched group's information of the technorati authority with above-mentioned key word in database, and shows satisfactory group's information.Details are as follows:
In step S21, receive the key word that is used for describing group's attribute of user's input, and the response user is based on the searching request of the key word of group's attribute, the topic that the key table syndrome member of this group attribute pays close attention to when chatting.
In the present embodiment, when the user need to search group information, the key word of group's attribute that then input need to be searched in the instant messaging chat software after this instant messaging chat software receives the key word of group attribute, responded the searching request of this key word.The topic of paying close attention to when wherein, the key word of this group attribute represents the group members chat.
In step S22, group's technorati authority of each group of storing in the computational data storehouse, this group technorati authority are used for describing the active degree of all group members of group under the designated group attribute.
In the present embodiment, this group technorati authority is mainly used in describing the active degree of all group members under certain group attribute in the group, chat content such as a group mainly relates to " automobile ", then this group is very active at " automobile " this group attribute, correspondingly, its technorati authority corresponding to " automobile " this a group attribute is also very high.If the user wishes to add the Instant Messenger (IM) software group of this topic of influences " automobile ", then this user need to input " automobile " both keyword so that the corresponding group of the group's attribute keyword search information of group's technorati authority that Instant Messenger (IM) software chat software basis receives in searching frame.
The step of group's technorati authority of each group of wherein, storing in the computational data storehouse is specially:
At first each group members in the group is carried out initialization operation in group's technorati authority of designated group attribute, again according to group members in this group members of active degree iterative computation of this designated group attribute group's technorati authority at this designated group attribute.As, suppose that A group has group members a, b, c, when user d (not being A group's group members) need to search the group of this topic of influences " automobile ", then in searching frame, input key word " automobile ", when instant communication chat software receives " automobile " this designated group attribute, all group members to A group: a, b, c carries out initialization operation, makes group members a, group members b and group members c are 0 at the initial value of group's technorati authority of " automobile ", search group members a, group members b and group members c are in all chat record contents of group A, when " automobile " appears once in the chat record of group members a, this group members a becomes 1 in group's technorati authority of " automobile " by 0, when " automobile " appearred in the chat record of group members a again, this group members a added 1 in group's technorati authority of " automobile " for last " automobile " the corresponding technorati authority that occurs, in like manner, by group members b, the chat record of group members c can calculate respectively group members b and group members c in group's technorati authority of " automobile ".Certainly, calculating group members a, group members b and group members c are when group's technorati authority of specified attribute " automobile ", several keywords also can be set more, as except keyword " automobile ", also be provided with keywords such as " gas cars ", when keyword that having arranged appears in the chat record of above-mentioned group members, the above-mentioned group members of iterative computation repeats no more in group's technorati authority of " automobile " herein.
After calculating the group technorati authority of all group members at the designated group attribute, each group members of ergodic group, obtain each group members in group's technorati authority of designated group attribute, judge that more whether group's technorati authority of obtaining is greater than 0 (0 is the value of initialization group members), when group members in group's technorati authority of designated group attribute greater than 0 the time, this group members of mark, statistics in group's technorati authority of designated group attribute greater than 0 group members number, and calculate group's number that such group members has, at last according to group's technorati authority of obtaining, group's number iterative computation group that the number of group members and group members have is in group's technorati authority of designated group attribute.Wherein, the iterative computation group can adopt following formula to calculate in group's technorati authority of designated group attribute:
Figure BDA0000078676180000061
Wherein, j is more than or equal to 1, S (0)=0, S (j) is for passing through after j iteration the group's technorati authority at the designated group attribute when pre-group, s (i) is that group members i is in group's technorati authority of designated group attribute, group's number that N (i) has for group members i, n is greater than 0 group members number in group's technorati authority of designated group attribute.
As: suppose that B group has 4 group members: e, f, g, h, the group that group members e has has 2, the group that group members f has has 1, the group that group members g has has 3, and the group that group members h has has 2, and above-mentioned 4 group members are respectively 1 in the technorati authority of the designated group attribute of key word " automobile ", 3,0,0, according to above-mentioned group's technorati authority as can be known, group members e and group members f greater than 0, therefore will adopt group members e and group members f iterative computation B group in group's technorati authority of " automobile " in group's technorati authority of the designated group attribute of key word " automobile ".Then B group in group's technorati authority of " automobile " is
S (1)=s (1)/N (1)+S (0)=1/2+0=1/2, S (2)=s (2)/N (2)+S (1)=3/1+1/2=7/2, namely B group is 7/2 in group's technorati authority of " automobile ".
In the present embodiment, the key word of the designated group attribute of inputting in searching frame according to the user is searched corresponding group with this designated group attribute at the Instant Messenger (IM) software lane database.The group's title that finds not necessarily comprises the designated group attribute of user's input, but has comprised most of content identical with the designated group attribute in this group's the chat record.Such as, when searching the group of designated group attribute " automobile ", may find the group that group's name is called " train ".
In step S23, show the group-list of group's technorati authority in specified scope.
Wherein, the step that shows the group-list of group's technorati authority in specified scope is specially: if the user has specified group's technorati authority indication range, then the group's technorati authority in this designated group technorati authority indication range is sorted from high to low, and show group's information corresponding to group's technorati authority according to ranking results.Height arrangement according to group's technorati authority shows that group's information is more conducive to the user and finds most suitable group, improves user's good experience.
In the present embodiment, after finding all group information corresponding with the designated group attribute, the group's technorati authority that is presented at the designated group attribute is greater than group's information of 0, and this group information is group's title and/or group's identify label number.Certainly, also can preset a threshold value, only show that the technorati authority of designated group attribute greater than group's information of this threshold value, is not construed as limiting herein.
In first embodiment of the invention, if the user is at the key word of searching a designated group attribute of input in the frame of Instant Messenger (IM) software, then this Instant Messenger (IM) software is at first determined dyeing source (namely in group's technorati authority of designated group attribute greater than 0 group members) according to chat record, adopt again coloring algorithm iterative computation group in group's technorati authority of this designated group attribute, determine whether to show this group information according to the group in group's technorati authority size of this designated group attribute.Because the group's information that finds is to determine in group's technorati authority of designated group attribute according to the group, and the group is to determine by the chat record of whole group members in group's technorati authority of designated group attribute, therefore the lookup method of the present embodiment can find out group's information that the user needs from wider group's information, and determine that according to whole chat records of group this group can not be subject to the fascination of group title in group's technorati authority of designated group attribute, can find more accurately group's information for the user, improved and searched accuracy, thereby promoted user's good experience.
Embodiment two:
Fig. 3 shows the structure of group's information searching device that second embodiment of the invention provides, and for convenience of explanation, only shows the part relevant with the embodiment of the invention.
This group information searching device can be used for the various information processing terminals by wired or wireless network connection server, mobile phone for example, pocket computing machine (Pocket Personal Computer, PPC), palm PC, computing machine, notebook computer, personal digital assistant (Personal Digital Assistant, PDA) etc., it can be the software unit that runs in these terminals, the unit that hardware cell or software and hardware combine, also can be used as independently, suspension member is integrated in these terminals or runs in the application system of these terminals, wherein:
Key word receiving element 31 be used for receiving the key word that is used for describing group's attribute that the user inputs, and the response user is based on the searching request of the key word of this group attribute, the topic that the key table syndrome member of this group attribute pays close attention to when chatting.
In the present embodiment, the user comprises the key word of designated group attribute in the input frame input of instant messaging chat software, this Instant Messenger (IM) software chat software receives the key word of this designated group attribute, in order to adopt coloring algorithm to calculate the group in group's technorati authority of this designated group attribute.Wherein, this group technorati authority is mainly used in describing group members in the group at the active degree of certain attribute.
Group's technorati authority computing unit 32 is used for the group technorati authority of each group of storing in the computational data storehouse, and this group technorati authority is used for describing group active degree of all group members under the designated group attribute.
Wherein, this group technorati authority computing unit 32 comprises: group members technorati authority acquisition module 321, group members number computing module 322, group's number computing module 323 and group's technorati authority determination module 324.
Group members technorati authority acquisition module 321, each group members for ergodic group obtains this group members in group's technorati authority of designated group attribute.
Group members number computing module 322, be used for when group members in the technorati authority of designated group attribute greater than 0 the time, calculate the number of this group members.
Group's number computing module 323, be used for when group members in the technorati authority of designated group attribute greater than 0 the time, calculate group's number that this group members has.
Group's technorati authority determination module 324 is used for according to this group members that obtains in the number of group's technorati authority of designated group attribute, this group members and group's number iterative computation group that this group members the has group's technorati authority at the designated group attribute.
Wherein, group's technorati authority determination module 324 also comprises: group's technorati authority initialization module 3241 and group's technorati authority iterative computation module 3242.
Group's technorati authority initialization module 3241 is used for the initialization group in group's technorati authority of designated group attribute.
Group's technorati authority iterative computation module 3242 is used for according to formula
Figure BDA0000078676180000091
Calculate the group in group's technorati authority of designated group attribute, this S (j) is for passing through after j iteration the group's technorati authority at the designated group attribute when pre-group, this s (i) is that group members i is in group's technorati authority of designated group attribute, group's number that this N (i) has for group members i, this n is greater than 0 group members number in group's technorati authority of designated group attribute.
Group's information display unit 33 is used for showing the group-list of group's technorati authority in specified scope.
Wherein, group's information display unit 33 comprises: indication range designated module 331 and demonstration information sorting module 332.
Indication range designated module 331 is used to specify group technorati authority indication range.
Show information sorting module 332, be used for the group's technorati authority in this designated group technorati authority indication range is sorted from high to low, and show group's information corresponding to group's technorati authority according to ranking results.
In the present embodiment, this group information searching device also comprises: group members technorati authority initialization unit 34 and group members technorati authority computing unit 35.
Group members technorati authority initialization unit 34 is used for each group members in the group is carried out initialization operation in group's technorati authority of designated group attribute.
Group members technorati authority computing unit 35 is used for according to group members in this group members of active degree iterative computation of this designated group attribute group's technorati authority at this designated group attribute.
In second embodiment of the invention, key word receiving element 31 receives the key word of group's attribute of user's input, and respond after the searching request of key word of this group attribute group's technorati authority computing unit 32 again according to all groups in the group property calculation database of this appointment in the group technorati authority of this designated group attribute, and show group technorati authority corresponding group of information in specified scope at group's information display unit 33.Because the group's information that finds is to determine in group's technorati authority of designated group attribute according to the group, and the group is to determine by the chat record of whole group members in group's technorati authority of designated group attribute, therefore the lookup method of the present embodiment can find out group's information that the user needs from wider group's information, and determine that according to whole chat records of group this group can not be subject to the fascination of group title in group's technorati authority of designated group attribute, can find more accurately group's information for the user, improved and searched accuracy, thereby promoted user's good experience.
In the embodiment of the invention, if the user is at the key word of searching a designated group attribute of input in the frame of Instant Messenger (IM) software, then this Instant Messenger (IM) software is at first determined dyeing source (namely in group's technorati authority of designated group attribute greater than 0 group members) according to chat record, again according to the dyeing source of determining and coloring algorithm iterative computation group in group's technorati authority of this designated group attribute, determine whether to show this group information according to the group in group's technorati authority size of this designated group attribute.Because the group's information that finds is to determine in group's technorati authority of designated group attribute according to the group, and the group is to determine by the chat record of whole group members in group's technorati authority of designated group attribute, therefore the lookup method of the present embodiment can find out group's information that the user needs from wider group's information, and determine that according to whole chat records of group this group can not be subject to the fascination of group title in group's technorati authority of designated group attribute, can find more accurately group's information for the user, improved and searched accuracy, thereby promoted user's good experience.
The above only is preferred embodiment of the present invention, not in order to limiting the present invention, all any modifications of doing within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.

Claims (11)

1. a population information searching method is characterized in that, described method comprises the steps:
Receive the key word for description group attribute of user's input, and the response user is based on the searching request of the key word of described group's attribute, the topic that the key table syndrome member of described group of attributes pays close attention to when chatting;
Group's technorati authority of each group of storing in the computational data storehouse, described group's technorati authority is used for describing the active degree of all group members of group under the designated group attribute;
Show the group-list of group's technorati authority in specified scope.
2. the method for claim 1 is characterized in that, the step of group's technorati authority of each group of storing in the described computational data storehouse is specially: each group members of ergodic group, obtain described group members in group's technorati authority of designated group attribute;
When group members in the technorati authority of designated group attribute greater than 0 the time, calculate the number of described group members;
When group members in the technorati authority of designated group attribute greater than 0 the time, calculate group's number that described group members has;
The group's number iterative computation group who has at number and the described group members of group's technorati authority of designated group attribute, described group members according to the described group members that obtains is in group's technorati authority of designated group attribute.
3. method as claimed in claim 2 is characterized in that, at each group members of described ergodic group, obtains described group members and further comprises the steps: before the step of group's technorati authority of designated group attribute
Each group members in the group is carried out initialization operation in group's technorati authority of designated group attribute;
According to group members in the described group members of active degree iterative computation of the described designated group attribute group's technorati authority at described designated group attribute.
4. method as claimed in claim 2, it is characterized in that, the described group members that described basis is obtained is specially in the step of group's technorati authority of designated group attribute group's number iterative computation group that number and the described group members of the technorati authority of designated group attribute, described group members has:
The initialization group is in group's technorati authority of designated group attribute;
According to formula
Figure FDA0000078676170000011
Calculate the group in group's technorati authority of designated group attribute, described S (j) is for passing through after j iteration the group's technorati authority at the designated group attribute when pre-group, described s (i) is that group members i is in group's technorati authority of designated group attribute, group's number that described N (i) has for group members i, described n is greater than 0 group members number in group's technorati authority of designated group attribute.
5. the method for claim 1 is characterized in that, the described step of the group-list of group's technorati authority in specified scope that shows is specially:
Designated group technorati authority indication range;
Group's technorati authority in this designated group technorati authority indication range is sorted from high to low, and show group's information corresponding to group's technorati authority according to ranking results.
6. a population information searching device is characterized in that, described device comprises:
The key word receiving element is used for the key word that is used for describing group's attribute of reception user input, and responds the user based on the searching request of the key word of described group's attribute, the topic that the key table syndrome member of described group's attribute pays close attention to when chatting;
Group's technorati authority computing unit is used for the group technorati authority of each group of storing in the computational data storehouse, and described group's technorati authority is used for describing group active degree of all group members under the designated group attribute;
Group's information display unit is used for showing the group-list of group's technorati authority in specified scope.
7. device as claimed in claim 6 is characterized in that, described group's technorati authority computing unit comprises:
Group members technorati authority acquisition module, each group members for ergodic group obtains described group members in group's technorati authority of designated group attribute;
Group members number computing module, be used for when group members in the technorati authority of designated group attribute greater than 0 the time, calculate the number of described group members;
Group's number computing module, be used for when group members in the technorati authority of designated group attribute greater than 0 the time, calculate group's number that described group members has;
Group's technorati authority determination module is used for group's number iterative computation group of having at number and the described group members of group's technorati authority of designated group attribute, described group members according to the described group members that obtains in group's technorati authority of designated group attribute.
8. device as claimed in claim 7 is characterized in that, described device also comprises:
Group members technorati authority initialization unit is used for each group members in the group is carried out initialization operation in group's technorati authority of designated group attribute;
Group members technorati authority computing unit is used for according to group members in the described group members of active degree iterative computation of the described designated group attribute group's technorati authority at described designated group attribute.
9. device as claimed in claim 7 is characterized in that, described group's technorati authority determination module comprises:
Group's technorati authority initialization module is used for the initialization group in group's technorati authority of designated group attribute;
Group's technorati authority iterative computation module is used for according to formula
Figure FDA0000078676170000031
Calculate the group in group's technorati authority of designated group attribute, described S (j) is for passing through after j iteration the group's technorati authority at the designated group attribute when pre-group, described s (i) is that group members i is in group's technorati authority of designated group attribute, group's number that described N (i) has for group members i, described n is greater than 0 group members number in group's technorati authority of designated group attribute.
10. device as claimed in claim 6 is characterized in that, described group's information display unit comprises:
The indication range designated module is used to specify group technorati authority indication range;
Show the information sorting module, be used for the group's technorati authority in this designated group technorati authority indication range is sorted from high to low, and show group's information corresponding to group's technorati authority according to ranking results.
11. immediate communication tool that comprises the described group of each claim of claim 6-10 information searching device.
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