2017-2018-2 20179215 "New Technology of Password and Security" The third assignment

2017-2018-2 20179215 "New Technology of Password and Security" The third assignment

Course: "New Technology of Cryptography and Security"

Class: 201792

Name: Yuan Lin

Student ID: 20179215

Class teacher: Xie Sijiang

Class Date: March 29, 2018

Compulsory/Elective: Elective

Summary of learning content

From Multimedia to Transmedia

1. Traditional multimedia has the following 获取不易，数据量小，关联度低characteristics :

2. Multimedia in the mobile Internet era has the following 获取容易，数据量大，关联度高characteristics :

Therefore, the formation of cross-media big data 数据的剧增、视频社交网站快速发展、视频上传量的增加等is accelerating.

3. Application of cross-media big data

• traffic monitoring
• Building monitoring
• 3D graphics
• 3D photo studio
• E-commerce online fitting
• 24-hour surveillance video cloud backup service

4. Cross-media big data analysis and computing is becoming a research hotspot at the forefront of science and technology:

• Text, audio, image, video, 3D, location and other types of media and their related social attribute information are mixed together to form a cross-media form. In order to effectively express, analyze and process cross-platform and cross-modal network media For big data, it is necessary to study a series of key issues such as the consistent description of related semantic structure, attribute acquisition, propagation mechanism, and spatio-temporal deduction of these data. The main research hotspots include:

  • Knowledge Expression in the Transmedia Era
  • Cross-media retrieval and sorting
  • Causal Inference for Cross-Media Data
  • Situational awareness based on cross-media analysis

• In order to express an event more vividly and vividly, a single form of media such as text, audio, image, and video is insufficient, so "Cross Media" appears, which combines different types of media data and their Various related attributes (such as space, time, etc.) are more closely mixed together to express semantics, themes, events in a new form, reflecting the views of individuals or groups.

• Cross-media computing refers to the theoretical and algorithmic realization of core issues such as cross-media expression, mining, reasoning, and search, and revealing their evolutionary laws.

• In cross-media research, three forms of crossing (Cross) need to be considered in particular
  • Cross Modality between different types of data
  • Cross Domain between data from different sources
  • The cross between cyberspace and physical space (Cross Cyber/Physical)

5. Security Issues

• Security-Oriented Cross-Media Content Analysis
  • Cross-media security monitoring
  • Identification of Harmful Content
  • Cross-media forensic analysis
  • Cross-media content identification
• Information Security Technology Based on Cross-media
  • Cross-media information hiding
  • Cross-media verification technology
• Information security technology across media itself
  • Cross-media copyright protection
  • Secure storage across media
  • Secure transmission across media
  • Cross-media safe handling

6. Research background and significance

Cloud Media Security Supervision
Secure Face Recognition
Video Surveillance in Cloud Environment

application

Combination of print media and transmedia

Traditional paper media should be inclusive in terms of content, topic selection and information sources, and fully absorb network resources. By introducing digital communication network technology, it can not only make good use of the massive information resources of the Internet, but also form a positive interaction with the rapidly expanding group of netizens. , thereby attracting a wider audience. Whether it is a portal website, social network, video animation, online game or online chat tool, all the ways of network communication can become the information source channel of the paper media, so that the paper media has a broader vision and a more comprehensive perspective. By sorting out, interviewing, and editing the news clues provided by netizens, the opinions and wisdom of netizens can become an inexhaustible treasure trove of materials for paper media, and the original ecology, grass-roots and professional depth are perfectly integrated. When every reader reads an article that feels familiar and resonates, experience and identification become a channel to transmit knowledge, emotion and happiness. At the same time, the interaction between print media and the Internet has also subverted the original stereotyped and conservative form of media among readers, and has become more vivid, dynamic and close to the people.

Summarize

In general, transmedia has the following advantages:

1. It can maximize the reach of the audience

2. It can greatly reduce the cost of communication

3. It can improve the efficiency of information dissemination

4. Comprehensive utilization of media resources

Five, can fully meet the needs of the audience

6. It can improve the anti-risk ability of the media

However, there are many technical difficulties in cross-media data, including unified representation and modeling methods of cross-media data, associative reasoning and deep mining of cross-media data, comprehensive search and content synthesis of cross-media data, etc. However, with the development of the times and technological changes, cross-media has entered a new era, and cross-media security solutions have also entered a new era, and difficulties will eventually be overcome.