Here are the data structures with brief descriptions:

CodeIgniter
AccountSettings_model
AccountSettingsAdvocate
AccountSettingsAuthor
AccountSettingsChair
AccountSettingsReviewer
approvement
approvement_model
AssignChair
AssignedReviewers
AssignManual
AssignReviewerAdvocate
assignto
CheckStatus
CheckStatus_model
CI_Benchmark
CI_Cache
CI_Cache_apc
CI_Cache_dummy
CI_Cache_file
CI_Cache_memcached
CI_Calendar
CI_Cart
CI_Config
CI_Controller
CI_DB_active_record
CI_DB_Cache
CI_DB_cubrid_driver
CI_DB_cubrid_forge
CI_DB_cubrid_result
CI_DB_cubrid_utility
CI_DB_driver
CI_DB_forge
CI_DB_mssql_driver
CI_DB_mssql_forge
CI_DB_mssql_result
CI_DB_mssql_utility
CI_DB_mysql_driver
CI_DB_mysql_forge
CI_DB_mysql_result
CI_DB_mysql_utility
CI_DB_mysqli_driver
CI_DB_mysqli_forge
CI_DB_mysqli_result
CI_DB_mysqli_utility
CI_DB_oci8_driver
CI_DB_oci8_forge
CI_DB_oci8_result
CI_DB_oci8_utility
CI_DB_odbc_driver
CI_DB_odbc_forge
CI_DB_odbc_result
CI_DB_odbc_utility
CI_DB_pdo_driver
CI_DB_pdo_forge
CI_DB_pdo_result
CI_DB_pdo_utility
CI_DB_postgre_driver
CI_DB_postgre_forge
CI_DB_postgre_result
CI_DB_postgre_utility
CI_DB_result
CI_DB_sqlite_driver
CI_DB_sqlite_forge
CI_DB_sqlite_result
CI_DB_sqlite_utility
CI_DB_sqlsrv_driver
CI_DB_sqlsrv_forge
CI_DB_sqlsrv_result
CI_DB_sqlsrv_utility
CI_DB_utility
CI_Driver
CI_Driver_Library
CI_Email
CI_Encrypt
CI_Exceptions
CI_Form_validation
CI_FTP
CI_Hooks
CI_Image_lib
CI_Input
CI_Javascript
CI_Jquery
CI_Lang
CI_Loader
CI_Log
CI_Migration
CI_Model
CI_Output
CI_Pagination
CI_Parser
CI_Profiler
CI_Router
CI_Security
CI_Session
CI_SHA1
CI_Table
CI_Trackback
CI_Typography
CI_Unit_test
CI_Upload
CI_URI
CI_User_agent
CI_Utf8
CI_Xmlrpc
CI_Xmlrpcs
CI_Zip
Conference2_dropdown
Conference_dropdown
Conference_model
ConferenceAuthor
ConferenceChair
ConferenceCreate
ConferenceRegistration
ConferenceReviewer
displaystatistics
displaystatistics_model
Download
Edit
EditConference
EditConference2
EditSubmission
evaluatesubmission
evaluatesubmission_model
Fee_dropdown
Home
InterestArea
language
Login
MakeSubmission
MakeSubNewUser
Messages
Mycal
Mycal_model
NewMessage
Payment
ReadMessage
reviewer2_dropdown
Reviewer_dropdown
score_dropdown
Submission_model
SuggestedInterestArea
SuggestedInterestAreaShow
Upload
uploadedfiles_model
ViewFile
ViewSubmission
viewsubmissionchair
votesubmission
votesubmission_model
XML_RPC_Client
XML_RPC_Message
XML_RPC_Response
XML_RPC_Values