IP Library › Granted Patent US 11,108,620
Granted Patent B2
US 11,108,620 · App. 16/675,053 · Granted Aug 31, 2021

Multi-dimensional impact detect and diagnosis in cellular networks

Inventors: Ajay Mahimkar (Edison, NJ); Mubashir Adnan Qureshi (Austin, TX); Lili Qiu (Austin, TX)
Assignees: AT&T Intellectual Property I, L.P.; Board of Regents, The University of Texas System
H04L41/0631G06N3/04G06N3/08H04L41/0677H04L43/04H04L43/16
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Quick Facts
Patent No.
US 11,108,620
App. No.
16/675,053
Granted
Aug 31, 2021
Kind
B2
Abstract

A method for multi-dimensional impact detection and diagnosis of networks. The methods and systems dynamically explore only those network feature combinations that are likely to have problems by using a summary structure Sketch, for example. The method and systems capture fine-grained anomalies at a coarse level which allows for on-demand zoom into the finer-grained levels for further analysis.

Claims (46)

1. An apparatus comprising:

a processor; and

a memory coupled with the processor, the memory storing executable instructions that when executed by the processor cause the processor to effectuate operations comprising:

obtaining a record associated with a property;

determining the record matches a feature of a first node, wherein the first node is in a lattice that comprises a set of nodes that are organized based on feature values of the property;

updating a first statistic of the first node to a second statistic of the first node;

determining that the difference between the first statistic and the second statistic has reached a threshold;

based on the difference between the first statistic and the second statistic reaching the threshold, adding a child node to the first node;

determining that the child node is anomalous;

based on determining that the child node is anomalous, determining root cause features, wherein the root cause features are a subset of the records; and

transmitting a message comprising the root cause of the anomaly for the first node.

2. The apparatus of claim 1 , wherein the determining the child node is anomalous is based on determining whether any dimension in the respective sketch exceeds kσ, wherein σ is standard deviation, and wherein k is a constant.

3. The apparatus of claim 1 , the operations further comprising initializing a new lattice node using values of the first node based on an independence assumption, wherein the first node is a parent node.

4. The apparatus of claim 1 , the operations further comprising restricting connections to network devices based on the determined root cause features.

5. The apparatus of claim 1 , wherein the determining the root cause features is based on a compressive sensing method.

6. The apparatus of claim 1 , wherein the determining the root cause features is based on a compressive sensing method, and wherein the compressing sensing method comprises input that comprises enumeration of possible feature vectors and their associated performance statistics.

7. The apparatus of claim 1 , wherein the determining the root features is based on a neural network method.

8. A non-transitory computer readable storage medium storing computer executable instructions that when executed by a computing device cause said computing device to effectuate operations comprising:

obtaining a record associated with a property;

determining the record matches a feature of a first node, wherein the first node is in a lattice that comprises a set of nodes that are organized based on feature values of the property;

updating a first statistic of the first node to a second statistic of the first node;

determining that the difference between the first statistic and the second statistic has reached a threshold;

based on the difference between the first statistic and the second statistic reaching the threshold, adding a child node to the first node;

determining that the child node is anomalous;

based on determining that the child node is anomalous, determining root cause features, wherein the root cause features are a subset of the records; and

transmitting a message comprising the root cause of the anomaly for the first node.

9. The non-transitory computer readable storage medium of claim 8 , wherein the determining the child node is anomalous is based on determining whether any dimension in the respective sketch exceeds kσ, wherein σ is standard deviation, and wherein k is a constant.

10. The non-transitory computer readable storage medium of claim 8 , the operations further comprising initializing a new lattice node using values of the first node based on an independence assumption, wherein the first node is a parent node.

11. The non-transitory computer readable storage medium of claim 8 , the operations further comprising restricting connections to network devices based on the determined root cause features.

12. The non-transitory computer readable storage medium of claim 8 , wherein the determining the root cause features is based on a compressive sensing method.

13. The non-transitory computer readable storage medium of claim 8 , wherein the determining the root cause features is based on a compressive sensing method, and wherein the compressing sensing method comprises input that comprises enumeration of possible feature vectors and their associated performance statistics.

14. The non-transitory computer readable storage medium of claim 8 , wherein the determining the root features is based on a neural network method.

15. A method comprising:

obtaining a record associated with a property;

determining the record matches a feature of a first node, wherein the first node is in a lattice that comprises a set of nodes that are organized based on feature values of the property;

updating a first statistic of the first node to a second statistic of the first node;

determining that the difference between the first statistic and the second statistic has reached a threshold;

based on the difference between the first statistic and the second statistic reaching the threshold, adding a child node to the first node;

determining that the child node is anomalous;

based on determining that the child node is anomalous, determining root cause features, wherein the root cause features are a subset of the records; and

transmitting a message comprising the root cause of the anomaly for the first node.

16. The method of claim 15 , wherein the determining the child node is anomalous is based on determining whether any dimension in the respective sketch exceeds kσ, wherein σ is standard deviation, and wherein k is a constant.

17. The method of claim 15 , the operations further comprising restricting connections to network devices based on the determined root cause features.

18. The method of claim 15 , wherein the determining the root cause features is based on a compressive sensing method.

19. The method of claim 15 , wherein the determining the root cause features is based on a compressive sensing method, and wherein the compressing sensing method comprises input that comprises enumeration of possible feature vectors and their associated performance statistics.

20. The method of claim 15 , wherein the determining the root features is based on a neural network method.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 2, 2021
From: QIU, LILI; QURESHI, MUBASHIR ADNAN
To: BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM
Reel/Frame 055457/0588 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 7, 2019
From: MAHIMKAR, AJAY
To: AT&T INTELLECTUAL PROPERTY I, L.P.
Reel/Frame 050940/0962 →
Continuity (1)
Related Publication 20210135925A1 · May 6, 2021