Editing Anti-spam techniques (section)

==New solutions and ongoing research==
Several approaches have been proposed to improve the email system.

===Cost-based systems===
{{Main|Cost-based anti-spam systems}}

Since spamming is facilitated by the fact that large volumes of email are very inexpensive to send, one proposed set of solutions would require that senders pay some cost in order to send email, making it prohibitively expensive for spammers. Anti-spam activist  [[Daniel Balsam]] attempts to make spamming less profitable by bringing lawsuits against spammers.<ref name="ap">Paul Elias, (December 26, 2010). [https://web.archive.org/web/20101227171358/http://apnews.myway.com/article/20101226/D9KBQRMG0.html Man quits job, makes living suing e-mail spammers], archived from [http://apnews.myway.com/article/20101226/D9KBQRMG0.html the original] on December 27, 2010. [[Associated Press]]</ref>

=== Machine-learning-based systems ===
Artificial intelligence techniques can be deployed for filtering spam emails, such as artificial neural networks algorithms and Bayesian filters. These methods use probabilistic methods to train the networks, such as examination of the concentration or frequency of words seen in the spam versus legitimate email contents.<ref>{{cite book |last1=Özgür |first1=Levent |last2=Güngör |first2=Tunga |last3=Gürgen |first3=Fikret |chapter=Spam Mail Detection Using Artificial Neural Network and Bayesian Filter |title=Intelligent Data Engineering and Automated Learning – IDEAL 2004 |volume=3177 |pages=[https://archive.org/details/intelligentdatae0000idea/page/505 505–510] |doi=10.1007/978-3-540-28651-6_74 |series=Lecture Notes in Computer Science |year=2004 |isbn=978-3-540-22881-3 |chapter-url=https://archive.org/details/intelligentdatae0000idea/page/505 }}</ref>

===Other techniques===

Channel email is a new proposal for sending email that attempts to distribute anti-spam activities by forcing verification (probably using [[bounce message]]s so back-scatter does not occur) when the first email is sent for new contacts.

===Research conferences===
Spam is the subject of several research conferences, including:
* [[Text Retrieval Conference|TREC]]