# US 8,572,073 B1 · Spam detection for user-generated multimedia items based on appearance in popular queries

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 8,572,073 B1
- Document ID: US8572073B1
- Status: Granted
- Kind: B1
- Application number: 13/438,767
- Filed: 2012-04-03
- Granted: 2013-10-29
- Earliest claimed: 2008-03-31
- Assignees: Google Inc.
- Applicants: Varun Kacholia; Ashutosh Garg; David Petrie Stoutamire
- Inventors: Varun Kacholia; Ashutosh Garg; David Petrie Stoutamire
- Web page: https://patentgrep.com/patent/US8572073B1

## CPC

- G06F 16/78: Retrieval characterised by using metadata, e.g. metadata not derived from the content or metadata generated manually
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)

## Abstract

A system, a method, and various software tools enable a video hosting website to automatically identify posted video items that contain spam in the metadata associated with a respective video item. A spam detection tool for user-generated video items based on appearance in popular queries is provided that facilitates the detection of spam in the metadata associated with a video item.

## Claims

### Claim 1

A computer-implemented method of identifying spam in a collection of multimedia items, comprising:
storing the collection of multimedia items;
establishing a set of top queries for the multimedia items in the collection, wherein the set of top queries comprises a plurality of frequently made queries for the multimedia items in the collection;
identifying results of each query in the set of top queries, wherein the results comprise one or more of the multimedia items from the collection;
for a multimedia item in the collection, counting a number of times that the item appears in the results of the set of top queries; and
responsive to the number of times that the multimedia item appears in the results of the set of top queries exceeding a predetermined threshold, marking the multimedia item as spam.

### Claim 2 (depends on 1)

The computer-implemented method of claim 1, wherein the multimedia items are videos.

### Claim 3 (depends on 1)

The computer-implemented method of claim 1, wherein the plurality of frequently made queries comprises at least ten thousand frequently made queries.

### Claim 4 (depends on 1)

The computer-implemented method of claim 1, further comprising:
responsive to the multimedia item being marked as spam, removing the multimedia item from the collection.

### Claim 5 (depends on 1)

The computer-implemented method of claim 1, further comprising:
responsive to the multimedia item being marked as spam, removing the multimedia item from an index.

### Claim 6

A system, comprising:
a non-transitory computer-readable storage medium storing computer instructions for:
storing a collection of multimedia items;
establishing a set of top queries for the multimedia items in the collection, wherein the set of top queries comprises a plurality of frequently made queries for the multimedia items in the collection;
identifying results of each query in the set of top queries, wherein the results comprise one or more of the multimedia items from the collection;
for a multimedia item in the collection, counting a number of times that the item appears in the results of the set of top queries; and
responsive to the number of times that the multimedia item appears in the results of the set of top queries exceeding a predetermined threshold,
marking the multimedia item as spam; and
a processor for executing the computer instructions.

### Claim 7 (depends on 6)

The system of claim 6, wherein the multimedia items are videos.

### Claim 8 (depends on 6)

The system of claim 6, wherein the plurality of frequently made queries comprises at least ten thousand frequently made queries.

### Claim 9 (depends on 6)

The system of claim 6, wherein the storage medium further stores computer instructions for:
responsive to the multimedia item being marked as spam, removing the multimedia item from the collection.

### Claim 10 (depends on 6)

The system of claim 6, wherein the storage medium further stores computer instructions for:
responsive to the multimedia item being marked as spam, removing the multimedia item from an index.

### Claim 11

A non-transitory computer-readable storage medium storing computer instructions for:
storing a collection of multimedia items;
establishing a set of top queries for the multimedia items in the collection, wherein the set of top queries comprises a plurality of frequently made queries for the multimedia items in the collection;
identifying results of each query in the set of top queries, wherein the results comprise one or more of the multimedia items from the collection;
for a multimedia item in the collection, counting a number of times that the item appears in the results of the set of top queries; and
responsive to the number of times that the multimedia item appears in the results of the set of top queries exceeding a predetermined threshold, marking the multimedia item as spam.

### Claim 12 (depends on 11)

The storage medium of claim 11, wherein the multimedia items are videos.

### Claim 13 (depends on 11)

The storage medium of claim 11, wherein the plurality of frequently made queries comprises at least ten thousand frequently made queries.

### Claim 14 (depends on 11)

The storage medium of claim 11, wherein the storage medium further stores computer instructions for:
responsive to the multimedia item being marked as spam, removing the multimedia item from the collection.

### Claim 15 (depends on 11)

The storage medium of claim 11, wherein the storage medium further stores computer instructions for:
responsive to the multimedia item being marked as spam, removing the multimedia item from an index.