Timeroom: Fall 2023

Displaying 1 - 78 of 78 Results for: Subject = CS
CRN Title Attributes HRS Time & Location Class Size Inst
CS 400 01 11106 Introduction to Computing 2.0
M 3:40pm - 5:30pm PARS N104
120 Mike Gildersleeve
Registration Approval Required. Contact Instructor or Academic Department for permission then register through Webcat.
Only listed colleges in section: Engineering&Physical Sciences
CS 408 01 11544 Living in a Networked World ETS 4.0
MW 2:10pm - 3:30pm PARS N114
30 Lisa Henry
Registration Approval Required. Contact Instructor or Academic Department for permission then register through Webcat.
CS 408 02 11543 Living in a Networked World ETS 4.0
MW 3:40pm - 5:00pm KING N334
30 Lisa Henry
Registration Approval Required. Contact Instructor or Academic Department for permission then register through Webcat.
CS 408 03 12725 Living in a Networked World SYNC, ONLO, EUNH, ETS 4.0
TR 3:40pm - 5:00pm ONLINE
30 Jasminka Hasic
Registration Approval Required. Contact Instructor or Academic Department for permission then register through Webcat.
CS 410C 01 12225 Intro Scientific Programng/C 4.0
MWF 10:10am - 11:00am CHASE 105
54 Craig Smith
Registration Approval Required. Contact Instructor or Academic Department for permission then register through Webcat.
Equivalent(s): CS 410P, CS 415
Majors not allowed in section: ANLYTC&DS:ANLY, COMPUTER SCIENC, CS: ALGORITHMS, CS: CYBERSECRTY, CS: SYSTEMS, INFO TECH
CS 410C 02 15142 Intro Scientific Programng/C 4.0
MWF 12:10pm - 1:00pm PARS NB22
40 Michael Kulik
Registration Approval Required. Contact Instructor or Academic Department for permission then register through Webcat.
Equivalent(s): CS 410P, CS 415
Majors not allowed in section: ANLYTC&DS:ANLY, ANLYTC&DS:DS, COMPUTER SCIENC, CS: ALGORITHMS, CS: CYBERSECRTY, CS: SYSTEMS, INFO TECH
CS 410C L01 14448 Intro Scientific Prog/C Lab 0.0
WF 8:10am - 9:00am KING N218
25 STAFF
Registration Approval Required. Contact Instructor or Academic Department for permission then register through Webcat.
Equivalent(s): CS 410P, CS 415
Majors not allowed in section: ANLYTC&DS:ANLY, COMPUTER SCIENC, CS: ALGORITHMS, CS: CYBERSECRTY, CS: SYSTEMS, INFO TECH
CS 410C L02 14942 Intro Scientific Prog/C Lab 0.0
WF 1:10pm - 2:00pm KING N218
25 STAFF
Registration Approval Required. Contact Instructor or Academic Department for permission then register through Webcat.
Equivalent(s): CS 410P, CS 415
Majors not allowed in section: ANLYTC&DS:ANLY, ANLYTC&DS:DS, COMPUTER SCIENC, CS: ALGORITHMS, CS: CYBERSECRTY, CS: SYSTEMS, INFO TECH
CS 410C L03 15128 Intro Scientific Prog/C Lab 0.0
WF 2:10pm - 3:00pm KING N218
28 STAFF
Registration Approval Required. Contact Instructor or Academic Department for permission then register through Webcat.
Equivalent(s): CS 410P, CS 415
Majors not allowed in section: ANLYTC&DS:ANLY, ANLYTC&DS:DS, COMPUTER SCIENC, CS: ALGORITHMS, CS: CYBERSECRTY, CS: SYSTEMS, INFO TECH
CS 415 01 10215 Intro to Computer Science I 4.0
MWF 10:10am - 11:00am PARS N116
60 Jason Reeves
Registration Approval Required. Contact Instructor or Academic Department for permission then register through Webcat.
Equivalent(s): CS 410C, CS 410P
Only listed colleges in section: Engineering&Physical Sciences
CS 415 02 10330 Intro to Computer Science I 4.0
MWF 11:10am - 12:00pm GREGG 110
45 Jason Reeves
Registration Approval Required. Contact Instructor or Academic Department for permission then register through Webcat.
Equivalent(s): CS 410C, CS 410P
Only listed colleges in section: Engineering&Physical Sciences
CS 415 03 14864 Intro to Computer Science I 4.0
MWF 12:10pm - 1:00pm HS 205
45 Craig Smith
Registration Approval Required. Contact Instructor or Academic Department for permission then register through Webcat.
Equivalent(s): CS 410C, CS 410P
Only listed colleges in section: Engineering&Physical Sciences
CS 415 L01 10928 Intro to Computer Sci I Lab 0.0
TR 8:10am - 9:30am KING N218
35 STAFF
Registration Approval Required. Contact Instructor or Academic Department for permission then register through Webcat.
Equivalent(s): CS 410C, CS 410P
CS 415 L02 10931 Intro to Computer Sci I Lab 0.0
TR 9:40am - 11:00am KING N134
20 STAFF
Registration Approval Required. Contact Instructor or Academic Department for permission then register through Webcat.
Equivalent(s): CS 410C, CS 410P
CS 415 L03 10929 Intro to Computer Sci I Lab 0.0
TR 9:40am - 11:00am KING N218
35 STAFF
Registration Approval Required. Contact Instructor or Academic Department for permission then register through Webcat.
Equivalent(s): CS 410C, CS 410P
CS 415 L04 10930 Intro to Computer Sci I Lab 0.0
TR 11:10am - 12:30pm KING N129
25 STAFF
Registration Approval Required. Contact Instructor or Academic Department for permission then register through Webcat.
Equivalent(s): CS 410C, CS 410P
CS 415 L05 11107 Intro to Computer Sci I Lab 0.0
TR 11:10am - 12:30pm KING N218
35 STAFF
Registration Approval Required. Contact Instructor or Academic Department for permission then register through Webcat.
Equivalent(s): CS 410C, CS 410P
CS 416 01 10361 Intro to Computer Science II 4.0
MWF 1:10pm - 2:00pm KING S145
55 Michael Kulik
Registration Approval Required. Contact Instructor or Academic Department for permission then register through Webcat.
Prerequisite(s):CS 410C or CS 410P or CS 415
Equivalent(s): CS 417
CS 416 L01 10998 Intro to Computer Sci II Lab 0.0
MW 3:40pm - 5:00pm KING N129
28 Michael Kulik
Registration Approval Required. Contact Instructor or Academic Department for permission then register through Webcat.
Prerequisite(s):CS 410C or CS 410P or CS 415
Equivalent(s): CS 417
CS 416 L02 14658 Intro to Computer Sci II Lab 0.0
MW 5:40pm - 7:00pm KING N218
20 Michael Kulik
Registration Approval Required. Contact Instructor or Academic Department for permission then register through Webcat.
Prerequisite(s):CS 410C or CS 410P or CS 415
Equivalent(s): CS 417
CS 417 01 12228 Programs to Computer Science 4.0
MWF 2:10pm - 3:00pm KING N133
25 Alejandro Hausner
Registration Approval Required. Contact Instructor or Academic Department for permission then register through Webcat.
Prerequisite(s):CS 410P with minimum grade of C- or CS 410C with minimum grade of C- or CS 415 with minimum grade of C-
Equivalent(s): CS 416
CS 417 L01 12246 Prog to Computer Science Lab 0.0
WF 3:10pm - 4:00pm KING N218
25 Alejandro Hausner
Registration Approval Required. Contact Instructor or Academic Department for permission then register through Webcat.
Prerequisite(s):CS 410P with minimum grade of C- or CS 410C with minimum grade of C- or CS 415 with minimum grade of C-
Equivalent(s): CS 416
CS 420 01 14449 Programming for Digital System 4.0
TR 9:40am - 11:00am KING N113
48 Arvind Narayan
Registration Approval Required. Contact Instructor or Academic Department for permission then register through Webcat.
Prerequisite(s):CS 410C with minimum grade of C- or CS 410P with minimum grade of C- or CS 414 with minimum grade of C- or CS 415 with minimum grade of C-
CS 420 R01 15594 Programming for Digit Sys Rec 0.0
F 11:10am - 12:30pm PARS N114
28 Arvind Narayan
Registration Approval Required. Contact Instructor or Academic Department for permission then register through Webcat.
Prerequisite(s):CS 410C with minimum grade of C- or CS 410P with minimum grade of C- or CS 414 with minimum grade of C- or CS 415 with minimum grade of C-
CS 420 R02 15595 Programming for Digit Sys Rec 0.0
F 2:10pm - 3:30pm KING N310
28 Arvind Narayan
Registration Approval Required. Contact Instructor or Academic Department for permission then register through Webcat.
Prerequisite(s):CS 410C with minimum grade of C- or CS 410P with minimum grade of C- or CS 414 with minimum grade of C- or CS 415 with minimum grade of C-
CS 457 01 13517 Intro Data Science/Analytics ETS 4.0
TR 2:10pm - 3:30pm PARS NB24
35 David Benedetto
Registration Approval Required. Contact Instructor or Academic Department for permission then register through Webcat.
Equivalent(s): DATA 557
CS 501 01 11772 Professional Ethics & Comm SYNC, ONLO, INQ, EUNH, ETS 4.0
MWF 2:10pm - 3:00pm ONLINE
16 Rita MacAuslan
Registration Approval Required. Contact Instructor or Academic Department for permission then register through Webcat.
Prerequisite(s):ENGL 401
Only listed colleges in section: Engineering&Physical Sciences
Only listed majors in section: COMPUTER SCIENC, CS: ALGORITHMS, CS: CYBERSECRTY, CS: SYSTEMS, INFO TECH
CS 501 02 11773 Professional Ethics & Comm SYNC, ONLO, INQ, EUNH, ETS 4.0
MWF 3:10pm - 4:00pm ONLINE
16 Rita MacAuslan
Registration Approval Required. Contact Instructor or Academic Department for permission then register through Webcat.
Prerequisite(s):ENGL 401
Only listed colleges in section: Engineering&Physical Sciences
Only listed majors in section: COMPUTER SCIENC, CS: ALGORITHMS, CS: CYBERSECRTY, CS: SYSTEMS, INFO TECH
CS 501 03 13520 Professional Ethics & Comm SYNC, ONLO, INQ, EUNH, ETS 4.0
MWF 4:10pm - 5:00pm ONLINE
16 Rita MacAuslan
Registration Approval Required. Contact Instructor or Academic Department for permission then register through Webcat.
Prerequisite(s):ENGL 401
Only listed colleges in section: Engineering&Physical Sciences
Only listed majors in section: COMPUTER SCIENC, CS: ALGORITHMS, CS: CYBERSECRTY, CS: SYSTEMS, INFO TECH
CS 515 01 10362 Data Struct & Intro/Algorithms 4.0
MWF 10:10am - 11:00am HS 150
55 Michael Kulik
Registration Approval Required. Contact Instructor or Academic Department for permission then register through Webcat.
Prerequisite(s):CS 416 with minimum grade of C- or CS 417 with minimum grade of C-
Only listed colleges in section: Engineering&Physical Sciences
CS 515 02 12960 Data Struct & Intro/Algorithms 4.0
MWF 11:10am - 12:00pm KING S145
55 Matthew Plumlee
Registration Approval Required. Contact Instructor or Academic Department for permission then register through Webcat.
Prerequisite(s):CS 416 with minimum grade of C- or CS 417 with minimum grade of C-
Only listed colleges in section: Engineering&Physical Sciences
CS 515 L01 15997 DataStruct&Intro/Algorithm Lab 0.0
R 2:10pm - 3:30pm KING N218
40 Matthew Plumlee
Registration Approval Required. Contact Instructor or Academic Department for permission then register through Webcat.
Prerequisite(s):CS 416 with minimum grade of C- or CS 417 with minimum grade of C-
CS 515 L02 11945 DataStruct&Intro/Algorithm Lab 0.0
R 3:40pm - 5:00pm KING N218
40 Matthew Plumlee
Registration Approval Required. Contact Instructor or Academic Department for permission then register through Webcat.
Prerequisite(s):CS 416 with minimum grade of C- or CS 417 with minimum grade of C-
Only listed colleges in section: Engineering&Physical Sciences
CS 515 L03 12726 DataStruct&Intro/Algorithm Lab 0.0
R 5:10pm - 6:30pm KING N218
40 Matthew Plumlee
Registration Approval Required. Contact Instructor or Academic Department for permission then register through Webcat.
Prerequisite(s):CS 416 with minimum grade of C- or CS 417 with minimum grade of C-
Only listed colleges in section: Engineering&Physical Sciences
CS 518 01 13917 Intro to Software Engineering 4.0
MWF 12:10pm - 1:30pm KEND 205
45 David Benedetto
Registration Approval Required. Contact Instructor or Academic Department for permission then register through Webcat.
Prerequisite(s):CS 416 or CS 417
Only listed colleges in section: Engineering&Physical Sciences
CS 518 02 14003 Intro to Software Engineering 4.0
MWF 2:10pm - 3:30pm KING N101
45 David Benedetto
Registration Approval Required. Contact Instructor or Academic Department for permission then register through Webcat.
Prerequisite(s):CS 416 or CS 417
Only listed colleges in section: Engineering&Physical Sciences
CS 520 01 11714 Computer Org & System Prog 4.0
TR 11:10am - 12:30pm KING N113
48 Arvind Narayan
Registration Approval Required. Contact Instructor or Academic Department for permission then register through Webcat.
Prerequisite(s):(CS 416 with minimum grade of C- or CS 417 with minimum grade of C- ) and CS 420 with minimum grade of C-
Only listed colleges in section: Engineering&Physical Sciences
CS 520 L01 12959 Computer Org & System Prog Lab 0.0
W 9:10am - 11:00am KING N218
40 Arvind Narayan
Registration Approval Required. Contact Instructor or Academic Department for permission then register through Webcat.
Prerequisite(s):(CS 416 with minimum grade of C- or CS 417 with minimum grade of C- ) and CS 420 with minimum grade of C-
Only listed colleges in section: Engineering&Physical Sciences
CS 520 L02 12958 Computer Org & System Prog Lab 0.0
Hours Arranged TBA
10 Arvind Narayan
Instructor Approval Required. Contact Instructor for permission then register through Webcat.
Prerequisite(s):(CS 416 with minimum grade of C- or CS 417 with minimum grade of C- ) and CS 420 with minimum grade of C-
Only listed colleges in section: Engineering&Physical Sciences
CS 527 01 14163 Fundamentals of Cybersecurity 4.0
TR 3:40pm - 5:00pm KING N328
40 Dongpeng Xu
Registration Approval Required. Contact Instructor or Academic Department for permission then register through Webcat.
Prerequisite(s):CS 416 or CS 417
Only listed colleges in section: Engineering&Physical Sciences
CS 527 02 15596 Fundamentals of Cybersecurity 4.0
TR 3:40pm - 5:00pm PARS NB22
40 Jason Reeves
Registration Approval Required. Contact Instructor or Academic Department for permission then register through Webcat.
Prerequisite(s):CS 416 or CS 417
CS 619 01 11488 Intro O-O Design and Devel 4.0
MW 1:10pm - 3:00pm PARS NB22
36 Matthew Plumlee
Registration Approval Required. Contact Instructor or Academic Department for permission then register through Webcat.
Prerequisite(s):CS 515 with minimum grade of C- and CS 518
Only listed colleges in section: Engineering&Physical Sciences
CS 620 01 11371 Operating System Fundamentals 4.0
MWF 9:10am - 10:00am KING N343
40 Elizabeth Varki
Registration Approval Required. Contact Instructor or Academic Department for permission then register through Webcat.
Prerequisite(s):CS 520
Only listed colleges in section: Engineering&Physical Sciences
CS 659 01 11466 Intro to Theory of Computation 4.0
MWF 12:10pm - 1:00pm HS G34
40 Alejandro Hausner
Registration Approval Required. Contact Instructor or Academic Department for permission then register through Webcat.
Prerequisite(s):MATH 531
Only listed colleges in section: Engineering&Physical Sciences
CS 696 01 10234 Independent Study 1.0 to 6.0
Hours Arranged TBA
0 STAFF
Instructor Approval Required. Contact Instructor for permission then register through Webcat.
Repeat Rule: May be repeated up to unlimited times.
Equivalent(s): CS 696W
CS 720 01 13540 Systems Programming 4.0
MWF 11:10am - 12:00pm KING N242
12 Arvind Narayan
Registration Approval Required. Contact Instructor or Academic Department for permission then register through Webcat.
Prerequisite(s):CS 520
Only listed colleges in section: Engineering&Physical Sciences
CS 722 01 14164 Cloud Computing Systems 4.0
MW 3:40pm - 5:00pm PARS NB24
24 Aleksey Charapko
Registration Approval Required. Contact Instructor or Academic Department for permission then register through Webcat.
Prerequisite(s):CS 620
Only listed colleges in section: Engineering&Physical Sciences
CS 723 01 15597 Performance Eval of Comp Sys 4.0
MWF 10:10am - 11:00am KING N334
20 Elizabeth Varki
Registration Approval Required. Contact Instructor or Academic Department for permission then register through Webcat.
Prerequisite(s):CS 620 and (MATH 539 or MATH 644)
CS 725 01 11946 Computer Networks 4.0
MW 2:10pm - 3:30pm KING S145
30 Radim Bartos
Registration Approval Required. Contact Instructor or Academic Department for permission then register through Webcat.
Prerequisite(s):CS 520
Equivalent(s): IT 725
Only listed colleges in section: Engineering&Physical Sciences
Majors not allowed in section: INFO TECH
CS 750 01 15942 Machine Learning 4.0
TR 9:40am - 11:00am KING N101
30 Marek Petrik
Registration Approval Required. Contact Instructor or Academic Department for permission then register through Webcat.
Prerequisite(s):MATH 539 or MATH 644
CS 753 01 15598 Information Retrieval 4.0
TR 3:40pm - 5:00pm PARS N114
30 Laura Dietz
Registration Approval Required. Contact Instructor or Academic Department for permission then register through Webcat.
Prerequisite(s):CS 515
CS 758 01 13920 Algorithms 4.0
MW 12:40pm - 2:00pm KING N121
F 1:10pm - 2:00pm PARS N116
40 Wheeler Ruml
Registration Approval Required. Contact Instructor or Academic Department for permission then register through Webcat.
Prerequisite(s):CS 420 with minimum grade of C- and CS 515 with minimum grade of C- and CS 659
Only listed colleges in section: Engineering&Physical Sciences
CS 770 01 12458 Computer Graphics 4.0
TR 2:10pm - 3:30pm PARS NB22
29 Alejandro Hausner
Registration Approval Required. Contact Instructor or Academic Department for permission then register through Webcat.
Prerequisite(s):CS 515 with minimum grade of C- and CS 520 with minimum grade of C-
Only listed colleges in section: Engineering&Physical Sciences
CS 791 01 11467 Senior Project I 2.0
TR 11:10am - 12:30pm PARS N116
65 Matthew Plumlee
Registration Approval Required. Contact Instructor or Academic Department for permission then register through Webcat.
Prerequisite(s):CS 520 with minimum grade of C- and ( (CS 619 and CS 620) or (CS 620 and (CS 727 or IT 666) ) )
Only listed majors in section: ANLYTC&DS:ANLY, ANLYTC&DS:DS, COMPUTER SCIENC, CS: ALGORITHMS, CS: CYBERSECRTY, CS: SYSTEMS
CS 799 07 17209 Thesis WRIT 1.0 to 5.0
Hours Arranged TBA
2 Dongpeng Xu
Instructor Approval Required. Contact Instructor for permission then register through Webcat.
Prerequisite(s):CS 520 with minimum grade of C- and CS 619
Repeat Rule: May be repeated for a maximum of 8 credits.
CS 800 01 10775 Internship 1.0
Hours Arranged TBA
5 Elizabeth Varki
Department Approval Required. Contact Academic Department for permission then register through Webcat.
Repeat Rule: May be repeated for a maximum of 3 credits.
Only listed majors in section: COMP SCI EXT, COMPUTER SCIENC, COMPUTER SCIENC
CS 820 01 13541 System Programming 3.0
MWF 11:10am - 12:00pm KING N242
5 Arvind Narayan
Registration Approval Required. Contact Instructor or Academic Department for permission then register through Webcat.
CS 822 01 14165 Cloud Computing Systems 3.0
MW 3:40pm - 5:00pm PARS NB24
10 Aleksey Charapko
Registration Approval Required. Contact Instructor or Academic Department for permission then register through Webcat.
CS 823 01 15623 Performance Eval of Comp Sys 3.0
MWF 10:10am - 11:00am KING N334
10 Elizabeth Varki
Registration Approval Required. Contact Instructor or Academic Department for permission then register through Webcat.
CS 825 01 11947 Computer Networks 3.0
MW 2:10pm - 3:30pm KING S145
20 Radim Bartos
Registration Approval Required. Contact Instructor or Academic Department for permission then register through Webcat.
CS 850 01 15945 Machine Learning 3.0
TR 9:40am - 11:00am KING N101
10 Marek Petrik
Registration Approval Required. Contact Instructor or Academic Department for permission then register through Webcat.
CS 853 01 15624 Information Retrieval 3.0
TR 3:40pm - 5:00pm PARS N114
10 Laura Dietz
Registration Approval Required. Contact Instructor or Academic Department for permission then register through Webcat.
CS 858 01 13921 Algorithms 3.0
MW 12:40pm - 2:00pm KING N121
F 1:10pm - 2:00pm PARS N116
10 Wheeler Ruml
Registration Approval Required. Contact Instructor or Academic Department for permission then register through Webcat.
CS 870 01 12459 Computer Graphics 3.0
TR 2:10pm - 3:30pm PARS NB22
11 Alejandro Hausner
Registration Approval Required. Contact Instructor or Academic Department for permission then register through Webcat.
CS 898 01 10551 Master's Project 3.0
Hours Arranged TBA
0 STAFF
Department Approval Required. Contact Academic Department for permission then register through Webcat.
CS 898 17 17200 Master's Project 3.0
Hours Arranged TBA
5 May-Win Thein
Instructor Approval Required. Contact Instructor for permission then register through Webcat.
CS 899 01 15157 Master's Thesis 1.0 to 6.0
Hours Arranged TBA
0 STAFF
Department Approval Required. Contact Academic Department for permission then register through Webcat.
Repeat Rule: May be repeated for a maximum of 6 credits.
CS 899 10 15608 Master's Thesis 1.0 to 6.0
Hours Arranged TBA
5 Radim Bartos
Department Approval Required. Contact Academic Department for permission then register through Webcat.
Repeat Rule: May be repeated for a maximum of 6 credits.
CS 899 15 15609 Master's Thesis 1.0 to 6.0
Hours Arranged TBA
5 Marek Petrik
Department Approval Required. Contact Academic Department for permission then register through Webcat.
Repeat Rule: May be repeated for a maximum of 6 credits.
CS 899 16 15610 Master's Thesis 1.0 to 6.0
Hours Arranged TBA
5 Wheeler Ruml
Department Approval Required. Contact Academic Department for permission then register through Webcat.
Repeat Rule: May be repeated for a maximum of 6 credits.
CS 900 01 10293 Graduate Seminar HYBR, EUNH 1.0
Hours Arranged ONLINE
F 12:10pm - 1:00pm KING N121
35 Elizabeth Varki
Registration Approval Required. Contact Instructor or Academic Department for permission then register through Webcat.
CS 927 01 13543 Software Security Analysis 3.0
TR 11:10am - 12:30pm KING N233
15 Dongpeng Xu
Registration Approval Required. Contact Instructor or Academic Department for permission then register through Webcat.
CS 931 01 13922 Planning for Robots 3.0
TR 2:10pm - 3:30pm KING N233
15 Wheeler Ruml
Registration Approval Required. Contact Instructor or Academic Department for permission then register through Webcat.
Prerequisite(s):CS 830 or CS 833
Repeat Rule: May be repeated for a maximum of 9 credits.
CS 950 01 15611 Advanced Machine Learning 3.0
MW 10:10am - 11:30am KING N233
15 Marek Petrik
Registration Approval Required. Contact Instructor or Academic Department for permission then register through Webcat.
Repeat Rule: May be repeated for a maximum of 9 credits.
CS 980 01 16698 Advanced Topics 3.0
TR 5:10pm - 6:30pm KING N233
15 Samuel Carton
Registration Approval Required. Contact Instructor or Academic Department for permission then register through Webcat.
CS 998 01 10499 Independent Study 1.0 to 6.0
Hours Arranged TBA
0 STAFF
Section above not available for web registration; Check with dept for details.
CS 999 01 15158 Doctoral Research 0.0
Hours Arranged TBA
0 STAFF
Instructor Approval Required. Contact Instructor for permission then register through Webcat.
CS 999 17 16899 Doctoral Research 0.0
Hours Arranged TBA
2 Thomas Butkiewicz
Instructor Approval Required. Contact Instructor for permission then register through Webcat.